/* ================================================================
   CSS Custom Properties
   ================================================================ */
:root {
  --primary: #0B2D6E;
  --primary-dark: #071d47;
  --primary-light: #1a4a8a;
  --accent: #5BB9D5;
  --accent-light: #8fd4e8;
  --white: #ffffff;
  --bg-light: #f8f9fb;
  --bg-section: #f0f4f8;
  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --shadow-sm: 0 1px 3px rgba(11,45,110,0.06);
  --shadow-md: 0 4px 16px rgba(11,45,110,0.08);
  --shadow-lg: 0 12px 40px rgba(11,45,110,0.12);
  --shadow-xl: 0 20px 60px rgba(11,45,110,0.16);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --nav-height: 72px;
  --font-sans: 'Pretendard Variable', 'Pretendard', 'DM Sans', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-en: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --white-always: #ffffff;
}

/* ================================================================
   Dark Theme Variables
   ================================================================ */
[data-theme="dark"] {
  --primary: #4d8ef7;
  --primary-dark: #3a7ae8;
  --primary-light: #6ba3ff;
  --accent: #5BB9D5;
  --accent-light: #7dd0e8;
  --white: #0f1419;
  --bg-light: #161b22;
  --bg-section: #1c2128;
  --text-primary: #e6edf3;
  --text-secondary: #a0adb8;
  --text-muted: #6e7681;
  --border: #2d333b;
  --border-light: #21262d;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.3);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.4);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.5);
}

/* ================================================================
   Reset & Base
   ================================================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
iconify-icon { display: inline-block; width: 1em; height: 1em; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: var(--nav-height); overflow-x: hidden; }
body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  word-break: keep-all;
  letter-spacing: -0.01em;
  transition: background 0.4s var(--ease-out), color 0.4s var(--ease-out), border-color 0.4s var(--ease-out);
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea, select { font: inherit; }
::selection { background: var(--primary); color: var(--white-always); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ================================================================
   Scroll Progress Bar
   ================================================================ */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; z-index: 9999;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  width: 0%; transition: width 0.1s linear;
}

/* ================================================================
   Typography
   ================================================================ */
.section-label {
  font-family: var(--font-en);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  display: inline-block;
}
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}
.section-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
}
.gradient-text { color: var(--primary); }

/* ================================================================
   Scroll Reveal Animations
   ================================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ================================================================
   Navigation
   ================================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 1000;
  will-change: transform;
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.35s var(--ease-out), color 0.35s var(--ease-out);
}
.nav::before {
  content: ''; position: absolute; inset: 0;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.35s var(--ease-out), color 0.35s var(--ease-out);
}
.nav.scrolled::before {
  background: rgba(255,255,255,0.95);
  border-bottom-color: var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; max-width: 1200px; margin: 0 auto;
  padding: 0 24px; position: relative; z-index: 1; overflow: visible;
}
.nav-logo { display: flex; align-items: center; gap: 8px; }
.nav-logo img { height: 34px; width: auto; transition: filter 0.4s var(--ease-out); }
[data-theme="dark"] .nav-logo img { filter: brightness(0) invert(1); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 16px; font-size: 0.9rem; font-weight: 500;
  color: var(--text-secondary); border-radius: var(--radius-sm);
  transition: color 0.25s var(--ease-out), background 0.25s var(--ease-out), border-color 0.25s var(--ease-out); white-space: nowrap;
  position: relative;
}
.nav-link:hover { color: var(--primary); background: rgba(11,45,110,0.05); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-cta {
  margin-left: 12px; padding: 10px 24px;
  background: var(--primary); color: var(--white-always);
  border-radius: 50px; font-size: 0.85rem; font-weight: 600;
  transition: background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out), color 0.3s var(--ease-out);
  box-shadow: 0 4px 16px rgba(11,45,110,0.25);
}
.nav-cta:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 24px rgba(11,45,110,0.4);
  transform: translateY(-1px);
}

/* Mobile Toggle */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px; padding: 11px; z-index: 10; flex-shrink: 0;
  min-width: 44px; min-height: 44px; align-items: center; justify-content: center;
}
.nav-toggle span {
  width: 22px; height: 2px; background: var(--text-primary);
  border-radius: 2px; transition: background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out), color 0.3s var(--ease-out);
  transform-origin: center;
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Menu */
.mobile-menu {
  display: none; position: fixed; top: var(--nav-height); left: 0; right: 0;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border); padding: 16px 24px; z-index: 999;
  box-shadow: var(--shadow-lg); transform: translateY(-10px); opacity: 0;
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.35s var(--ease-out), color 0.35s var(--ease-out); pointer-events: none;
}
.mobile-menu.active { display: block; transform: translateY(0); opacity: 1; pointer-events: all; }
.mobile-menu a {
  display: flex; align-items: center; padding: 14px 0; font-size: 1rem; font-weight: 500;
  min-height: 44px;
  color: var(--text-secondary); border-bottom: 1px solid var(--border-light);
  transition: color 0.2s;
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--primary); }

/* ================================================================
   Hero Section
   ================================================================ */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; padding: 120px 24px 80px;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(135deg, #f8f9fb 0%, #eef3f9 50%, #f0f7fc 100%);
}
/* Animated floating orbs - enhanced visibility */
.hero-orb {
  position: absolute; border-radius: 50%; filter: blur(60px);
  animation: orbFloat 18s ease-in-out infinite;
}
.hero-orb-1 {
  width: 600px; height: 600px; top: -15%; right: -8%;
  background: radial-gradient(circle, rgba(91,185,213,0.35), transparent 65%);
  animation-delay: 0s;
}
.hero-orb-2 {
  width: 500px; height: 500px; bottom: -10%; left: -8%;
  background: radial-gradient(circle, rgba(11,45,110,0.22), transparent 65%);
  animation-delay: -6s;
}
.hero-orb-3 {
  width: 400px; height: 400px; top: 25%; left: 35%;
  background: radial-gradient(circle, rgba(91,185,213,0.25), transparent 65%);
  animation-delay: -12s;
}
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -20px) scale(1.05); }
  50% { transform: translate(-20px, 30px) scale(0.95); }
  75% { transform: translate(20px, 20px) scale(1.02); }
}

/* Interactive particle canvas */
.hero-canvas {
  position: absolute; inset: 0; z-index: 0;
}

/* Animated gradient border utility */
.glow-border {
  position: relative;
}
.glow-border::before {
  content: ''; position: absolute; inset: -2px; z-index: -1;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--primary), var(--accent), var(--primary));
  background-size: 300% 300%;
  animation: glowShift 4s ease infinite;
  opacity: 0; transition: opacity 0.4s var(--ease-out);
}
.glow-border:hover::before { opacity: 1; }
@keyframes glowShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* 3D tilt card effect */
.tilt-card { transition: transform 0.15s ease-out; transform-style: preserve-3d; }
.tilt-card .tilt-shine {
  position: absolute; inset: 0; border-radius: inherit;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,0.12), transparent 60%);
  opacity: 0; transition: opacity 0.3s; pointer-events: none;
}
.tilt-card:hover .tilt-shine { opacity: 1; }

/* Magnetic button */
.magnetic-btn { transition: transform 0.2s var(--ease-out); }

/* Text scramble */
.scramble-char {
  display: inline-block;
  animation: scrambleIn 0.6s var(--ease-out) forwards;
  animation-delay: var(--delay, 0s);
  opacity: 0;
}
@keyframes scrambleIn {
  0% { opacity: 0; transform: translateY(20px) rotateX(-90deg); filter: blur(4px); }
  60% { opacity: 1; filter: blur(0); }
  100% { opacity: 1; transform: translateY(0) rotateX(0); }
}

/* Hero title glow on dark */
[data-theme="dark"] .hero-title {
  text-shadow: 0 0 40px rgba(77,142,247,0.15);
}

.hero-content {
  position: relative; z-index: 1; text-align: center; max-width: 880px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 20px; background: rgba(11,45,110,0.06);
  border: 1px solid rgba(11,45,110,0.12);
  border-radius: 50px; font-size: 0.85rem; font-weight: 600;
  color: var(--primary); margin-bottom: 32px;
}
.hero-badge-dot {
  width: 8px; height: 8px; background: var(--accent);
  border-radius: 50%; animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(91,185,213,0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(91,185,213,0); }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900; line-height: 1.15;
  margin-bottom: 24px; letter-spacing: -1.5px;
  color: var(--primary);
}
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary); max-width: 580px;
  margin: 0 auto 48px; line-height: 1.8;
}
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px; margin-bottom: 48px;
}
.hero-stat {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(11,45,110,0.08);
  border-radius: var(--radius-md); padding: 24px 16px;
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.35s var(--ease-out), color 0.35s var(--ease-out);
}
.hero-stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(11,45,110,0.15);
}
.hero-stat-number {
  font-family: var(--font-en); font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 600; color: var(--primary); line-height: 1.2; margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}
.hero-stat-label { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }

.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 15px 34px; background: var(--primary); color: var(--white-always);
  border-radius: 50px; font-size: 0.95rem; font-weight: 600;
  transition: background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out), color 0.3s var(--ease-out);
  box-shadow: 0 6px 20px rgba(11,45,110,0.3);
}
.btn-primary:hover {
  background: var(--primary-dark); transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(11,45,110,0.4);
}
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 15px 34px; background: var(--white); color: var(--primary);
  border: 2px solid var(--primary); border-radius: 50px;
  font-size: 0.95rem; font-weight: 600;
  transition: background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out), color 0.3s var(--ease-out);
}
.btn-secondary:hover {
  background: var(--primary); color: var(--white-always); transform: translateY(-2px);
}

.hero-scroll {
  position: absolute; bottom: 32px; left: 50%;
  transform: translateX(-50%); display: flex; flex-direction: column;
  align-items: center; gap: 8px; color: var(--text-muted);
  font-size: 0.7rem; font-family: var(--font-en); font-weight: 600;
  letter-spacing: 2px; z-index: 1;
}
.hero-scroll-line {
  width: 1px; height: 40px; position: relative; overflow: hidden;
  background: rgba(11,45,110,0.1);
}
.hero-scroll-line::after {
  content: ''; position: absolute; top: -100%; left: 0; width: 100%; height: 50%;
  background: var(--primary); animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { top: -50%; } 100% { top: 150%; }
}

/* ================================================================
   Section Spacing
   ================================================================ */
.section { padding: 100px 0; position: relative; }
.section-alt { background: var(--bg-light); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header .section-desc { margin: 0 auto; }

/* ================================================================
   About Section
   ================================================================ */
.about-intro {
  max-width: 760px; margin: 0 auto 64px; text-align: center;
}
.about-quote {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 400; line-height: 1.6; color: var(--text-primary);
  letter-spacing: -0.01em;
}
.about-quote strong { font-weight: 800; color: var(--primary); }

.about-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 1px; background: var(--border); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
}
.about-card {
  background: var(--white); padding: 40px 36px;
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.35s var(--ease-out), color 0.35s var(--ease-out);
}
.about-card:hover { background: #fafcff; }
.about-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(11,45,110,0.08), rgba(91,185,213,0.08));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; color: var(--primary);
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.35s var(--ease-out), color 0.35s var(--ease-out);
}
.about-card:hover .about-icon {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white-always); transform: scale(1.05);
}
.about-card h3 {
  font-size: 1.1rem; font-weight: 700;
  margin-bottom: 8px; letter-spacing: -0.01em;
}
.about-card p {
  font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.7;
}

/* ================================================================
   Solutions Section (Accordion)
   ================================================================ */
.solutions-intro {
  max-width: 600px; margin-bottom: 48px;
}
.solutions-list { border-top: 1px solid var(--border); }
.solutions-item { border-bottom: 1px solid var(--border); }
.solutions-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 24px 0; cursor: pointer; user-select: none;
  transition: color 0.2s;
}
.solutions-header:hover { color: var(--accent); }
.solutions-header h3 {
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  font-weight: 700; letter-spacing: -0.02em;
  display: inline-flex; align-items: center;
}
.solutions-header-right {
  display: flex; align-items: center; gap: 16px; flex-shrink: 0;
}
.solutions-meta {
  font-size: 0.875rem; color: var(--text-muted); display: none;
}
.solutions-toggle {
  width: 32px; height: 32px; position: relative; flex-shrink: 0;
}
.solutions-toggle::before, .solutions-toggle::after {
  content: ''; position: absolute; background: var(--text-primary);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s var(--ease-out), background 0.4s var(--ease-out);
}
.solutions-toggle::before {
  width: 14px; height: 1.5px; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.solutions-toggle::after {
  width: 1.5px; height: 14px; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.solutions-item.active .solutions-toggle::after {
  transform: translate(-50%, -50%) rotate(90deg); opacity: 0;
}
.solutions-body {
  max-height: 0; overflow: hidden;
  transition: max-height 0.5s var(--ease-out), padding 0.5s var(--ease-out);
}
.solutions-item.active .solutions-body { max-height: 500px; }
.solutions-content {
  padding-bottom: 28px; max-width: 640px;
}
.solutions-content p {
  font-size: 0.9375rem; color: var(--text-secondary);
  line-height: 1.8; margin-bottom: 12px;
}
.solutions-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.solutions-tag {
  font-size: 0.75rem; font-weight: 700; color: var(--primary);
  padding: 6px 14px; border: 1px solid var(--primary);
  border-radius: 50px; letter-spacing: 0.02em;
  transition: color 0.25s var(--ease-out), background 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
}
.solutions-tag:hover {
  background: var(--primary); color: var(--white-always);
}

/* ================================================================
   Portfolio Section
   ================================================================ */
.portfolio-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-bottom: 48px;
}
.portfolio-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px 32px;
  position: relative; overflow: hidden;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s var(--ease-out), background 0.4s var(--ease-out);
}
.portfolio-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.5s var(--ease-out);
}
.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.portfolio-card:hover::before { transform: scaleX(1); }
.portfolio-label {
  font-family: var(--font-en); font-size: 0.75rem; font-weight: 700;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--accent); margin-bottom: 10px;
}
.portfolio-card h3 {
  font-size: 1.15rem; font-weight: 700;
  margin-bottom: 12px; color: var(--text-primary);
}
.portfolio-card p {
  font-size: 0.9rem; color: var(--text-secondary);
  line-height: 1.7; margin-bottom: 16px;
}
.portfolio-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.portfolio-tag {
  display: inline-block; padding: 4px 10px;
  background: rgba(11,45,110,0.05); color: var(--primary);
  font-size: 0.75rem; font-weight: 600;
  border-radius: 4px;
}
.portfolio-statement {
  text-align: center; padding: 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-lg); color: var(--white-always);
}
.portfolio-statement-text {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem); font-weight: 400;
}
.portfolio-statement-text strong {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900; display: block; margin-bottom: 4px;
  font-family: var(--font-en);
}

/* ================================================================
   Tech Stack Section (Marquee)
   ================================================================ */
.tech-section { overflow: hidden; padding: 80px 0; }
.tech-header { text-align: center; margin-bottom: 48px; }
.tech-categories { display: flex; flex-direction: column; gap: 24px; }
.tech-row { display: flex; align-items: center; gap: 16px; }
.tech-label {
  min-width: 120px; font-size: 0.8125rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-primary); text-align: right; flex-shrink: 0;
}
.tech-marquee {
  overflow: hidden; position: relative; flex: 1;
  mask-image: linear-gradient(90deg, transparent 0%, black 10%, black 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 10%, black 90%, transparent 100%);
}
.tech-track {
  display: flex; gap: 12px; width: max-content;
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.tech-track:hover { animation-play-state: paused; }
.tech-item {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px; background: var(--white);
  border: 1px solid var(--border); border-radius: 50px;
  font-size: 0.85rem; font-weight: 500; color: var(--text-secondary);
  white-space: nowrap; flex-shrink: 0;
  transition: color 0.25s var(--ease-out), background 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
}
.tech-item:hover {
  border-color: var(--primary); color: var(--primary);
  background: rgba(11,45,110,0.03);
}
/* .tech-item-dot replaced by .tech-item-icon (iconify-icon) */

/* ================================================================
   Partners Section
   ================================================================ */
.partners-grid {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
.partner-item {
  display: flex; flex-direction: column; align-items: center;
  gap: 10px; padding: 20px 12px; border-radius: var(--radius-md);
  transition: background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out), color 0.3s var(--ease-out);
}
.partner-item:hover { background: rgba(11,45,110,0.03); transform: translateY(-2px); }
.partner-logo {
  height: 36px; width: auto; max-width: 100%;
  object-fit: contain;
  filter: grayscale(100%); opacity: 0.5;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s var(--ease-out), background 0.4s var(--ease-out);
}
.partner-item:hover .partner-logo { filter: grayscale(0%); opacity: 1; }
.partner-name {
  font-size: 0.6875rem; color: var(--text-muted); font-weight: 500;
  white-space: nowrap; transition: color 0.3s;
}
.partner-item:hover .partner-name { color: var(--text-secondary); }

/* ================================================================
   History / Timeline Section
   ================================================================ */
.timeline-container {
  max-width: 720px; margin: 0 auto; position: relative; padding-left: 140px;
}
.timeline-line {
  position: absolute; left: 120px; top: 0; bottom: 0;
  width: 2px; background: var(--border);
}
.timeline-line-fill {
  width: 100%; height: 0%; background: linear-gradient(180deg, var(--primary), var(--accent));
  transition: height 1.5s var(--ease-out);
}
.timeline-entry {
  position: relative; padding-bottom: 40px; padding-left: 36px;
}
.timeline-entry:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute; left: -7px; top: 4px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--white); border: 3px solid var(--border);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s var(--ease-out), background 0.4s var(--ease-out); z-index: 1;
}
.timeline-entry.visible .timeline-dot {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(11,45,110,0.1);
}
.timeline-year {
  position: absolute; left: -152px; top: -2px;
  width: 100px; text-align: right;
  font-family: var(--font-en); font-size: 1.25rem;
  font-weight: 800; color: var(--primary);
}
.timeline-content {
  font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.8;
}
.timeline-content p {
  margin-bottom: 4px; position: relative; padding-left: 14px;
}
.timeline-content p::before {
  content: ''; position: absolute; left: 0; top: 10px;
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent);
}

/* ================================================================
   Contact Section
   ================================================================ */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch;
}
.contact-info {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px;
  box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column;
}
.contact-info-title {
  font-size: 1.25rem; font-weight: 700; margin-bottom: 28px;
}
.contact-item {
  display: flex; gap: 14px; margin-bottom: 24px; align-items: flex-start;
}
.contact-icon {
  width: 42px; height: 42px; border-radius: 10px;
  background: linear-gradient(135deg, rgba(11,45,110,0.08), rgba(91,185,213,0.08));
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; color: var(--primary);
}
.contact-label {
  font-size: 0.75rem; font-weight: 700; color: var(--text-muted);
  letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 2px;
}
.contact-value {
  font-size: 0.9375rem; color: var(--text-primary); line-height: 1.6;
}

.contact-form {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px;
  box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column;
}
.contact-form .form-group:has(textarea) { flex: 1; display: flex; flex-direction: column; }
.contact-form textarea { flex: 1; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 0.8125rem; font-weight: 600;
  color: var(--text-primary); margin-bottom: 6px;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 16px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 0.9rem; color: var(--text-primary); background: var(--bg-light);
  transition: color 0.25s var(--ease-out), background 0.25s var(--ease-out), border-color 0.25s var(--ease-out); outline: 2px solid transparent;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(11,45,110,0.08);
  background: var(--white);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.btn-submit {
  width: 100%; padding: 14px 32px;
  background: var(--primary); color: var(--white-always);
  border: none; border-radius: var(--radius-sm);
  font-size: 0.95rem; font-weight: 700; cursor: pointer;
  transition: background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out), color 0.3s var(--ease-out);
}
.btn-submit:hover { background: var(--primary-dark); transform: translateY(-1px); }

/* ================================================================
   Footer
   ================================================================ */
.footer {
  background: var(--primary); color: rgba(255,255,255,0.7); padding: 56px 0 28px;
}
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: 48px; margin-bottom: 40px;
}
.footer-brand img { height: 28px; width: auto; margin-bottom: 16px; filter: brightness(0) invert(1); }
.footer-brand p { font-size: 0.875rem; line-height: 1.7; max-width: 320px; margin-bottom: 16px; }
.footer-slogan {
  font-family: var(--font-en); font-size: 0.8rem;
  font-weight: 700; letter-spacing: 2px; color: var(--accent);
}
.footer-col h4 {
  font-size: 0.85rem; font-weight: 700; color: var(--white-always);
  margin-bottom: 16px; letter-spacing: 0.5px;
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col a {
  font-size: 0.825rem; transition: color 0.2s;
}
.footer-col a:hover { color: var(--white-always); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex; justify-content: center; align-items: center;
  font-size: 0.8rem;
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { transition: color 0.2s; }
.footer-bottom-links a:hover { color: var(--white-always); }

/* ================================================================
   Theme Toggle Button
   ================================================================ */
.theme-toggle {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(11,45,110,0.06); border: 1px solid var(--border);
  transition: background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out), color 0.3s var(--ease-out); margin-left: 8px;
  position: relative; overflow: hidden; flex-shrink: 0;
}
.theme-toggle:hover {
  background: rgba(11,45,110,0.12); transform: rotate(15deg);
}
.theme-toggle svg { transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s var(--ease-out), background 0.4s var(--ease-out); }
.theme-toggle .icon-sun { position: absolute; opacity: 0; transform: rotate(-90deg) scale(0.5); }
.theme-toggle .icon-moon { position: absolute; opacity: 1; transform: rotate(0deg) scale(1); }
[data-theme="dark"] .theme-toggle .icon-sun { opacity: 1; transform: rotate(0deg) scale(1); }
[data-theme="dark"] .theme-toggle .icon-moon { opacity: 0; transform: rotate(90deg) scale(0.5); }
[data-theme="dark"] .theme-toggle {
  background: rgba(91,185,213,0.12); border-color: rgba(91,185,213,0.2);
}

/* ================================================================
   Dark Theme Overrides
   ================================================================ */
[data-theme="dark"] .nav::before {
  background: rgba(15,20,25,0.85);
}
[data-theme="dark"] .nav.scrolled::before {
  background: rgba(15,20,25,0.95);
}
[data-theme="dark"] .hero-bg {
  background: linear-gradient(135deg, #0f1419 0%, #141d27 50%, #111920 100%);
}
[data-theme="dark"] .hero-orb-1 {
  background: radial-gradient(circle, rgba(77,142,247,0.25), transparent 65%);
}
[data-theme="dark"] .hero-orb-2 {
  background: radial-gradient(circle, rgba(91,185,213,0.18), transparent 65%);
}
[data-theme="dark"] .hero-orb-3 {
  background: radial-gradient(circle, rgba(77,142,247,0.15), transparent 65%);
}
[data-theme="dark"] .hero-stat {
  background: rgba(22,27,34,0.8);
  border-color: var(--border);
}
[data-theme="dark"] .hero-badge {
  background: rgba(77,142,247,0.12);
  border-color: rgba(77,142,247,0.25);
}
[data-theme="dark"] .about-card { background: var(--white); }
[data-theme="dark"] .about-card:hover { background: #1a2030; }
[data-theme="dark"] .about-grid { background: var(--border); }
[data-theme="dark"] .about-icon {
  background: linear-gradient(135deg, rgba(77,142,247,0.15), rgba(91,185,213,0.15));
}
[data-theme="dark"] .portfolio-card { background: var(--white); }
[data-theme="dark"] .portfolio-tag {
  background: rgba(77,142,247,0.12); color: var(--accent);
}
[data-theme="dark"] .portfolio-statement {
  background: linear-gradient(135deg, #1a3a6e, #244a8a);
}
[data-theme="dark"] .solutions-tag {
  color: var(--accent); border-color: var(--accent);
}
[data-theme="dark"] .solutions-tag:hover {
  background: var(--accent); color: #0f1419;
}
[data-theme="dark"] .solutions-toggle::before,
[data-theme="dark"] .solutions-toggle::after {
  background: var(--text-primary);
}
[data-theme="dark"] .tech-item {
  background: var(--white); border-color: var(--border);
}
[data-theme="dark"] .tech-item:hover {
  border-color: var(--accent); color: var(--accent);
}
[data-theme="dark"] .partner-logo {
  filter: grayscale(100%) brightness(1.5); opacity: 0.4;
}
[data-theme="dark"] .partner-item:hover .partner-logo {
  filter: grayscale(0%) brightness(1.2); opacity: 1;
}
[data-theme="dark"] .timeline-line { background: var(--border); }
[data-theme="dark"] .timeline-dot { background: var(--white); border-color: var(--border); }
[data-theme="dark"] .timeline-entry.visible .timeline-dot {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(91,185,213,0.15);
}
[data-theme="dark"] .contact-info {
  background: var(--bg-light); border-color: var(--border);
}
[data-theme="dark"] .contact-form {
  background: var(--bg-light); border-color: var(--border);
}
[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
  background: var(--white); border-color: var(--border); color: var(--text-primary);
}
[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group select:focus,
[data-theme="dark"] .form-group textarea:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px rgba(91,185,213,0.15);
  background: #1a2030;
}
[data-theme="dark"] .mobile-menu {
  background: rgba(15,20,25,0.98);
}
[data-theme="dark"] .mobile-menu a { color: var(--text-secondary); }
[data-theme="dark"] .nav-toggle span { background: var(--text-primary); }
[data-theme="dark"] .footer {
  background: #0a0f14; border-top: 1px solid var(--border);
}
[data-theme="dark"] .footer-brand img { filter: brightness(0) invert(1) opacity(0.8); }
[data-theme="dark"] .btn-primary {
  background: #4d8ef7; box-shadow: 0 6px 20px rgba(77,142,247,0.3);
}
[data-theme="dark"] .btn-primary:hover {
  background: #3a7ae8; box-shadow: 0 10px 32px rgba(77,142,247,0.4);
}
[data-theme="dark"] .btn-secondary {
  background: transparent; color: #4d8ef7; border-color: #4d8ef7;
}
[data-theme="dark"] .btn-secondary:hover {
  background: #4d8ef7; color: #0f1419;
}
[data-theme="dark"] .nav-cta { background: #4d8ef7; }
[data-theme="dark"] .nav-cta:hover { background: #3a7ae8; }
[data-theme="dark"] .btn-submit { background: #4d8ef7; }
[data-theme="dark"] .btn-submit:hover { background: #3a7ae8; }
[data-theme="dark"] .gradient-text { color: #6ba3ff; }
[data-theme="dark"] .hero-title { color: #e6edf3; }
[data-theme="dark"] ::selection { background: var(--accent); color: #0f1419; }

/* ================================================================
   Certification Section
   ================================================================ */
.cert-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-bottom: 48px;
}
.cert-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px 28px;
  text-align: center; position: relative; overflow: hidden;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s var(--ease-out), background 0.4s var(--ease-out);
}
.cert-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0); transition: transform 0.4s var(--ease-out);
}
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.cert-card:hover::after { transform: scaleX(1); }
.cert-icon {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, rgba(11,45,110,0.08), rgba(91,185,213,0.08));
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; font-size: 1.5rem;
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.35s var(--ease-out), color 0.35s var(--ease-out);
}
.cert-card:hover .cert-icon {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  transform: scale(1.1);
}
.cert-card:hover .cert-icon { color: white; }
.cert-number {
  font-family: var(--font-en); font-size: 1.75rem; font-weight: 800;
  color: var(--primary); margin-bottom: 4px;
}
.cert-title {
  font-size: 1rem; font-weight: 600; color: var(--text-primary);
  margin-bottom: 6px;
}
.cert-desc {
  font-size: 0.825rem; color: var(--text-muted); line-height: 1.5;
}
.cert-badges {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.cert-badge {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 24px 16px;
  text-align: center; transition: background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out), color 0.3s var(--ease-out);
}
.cert-badge:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.cert-badge-icon {
  font-size: 1.5rem; margin-bottom: 8px; display: block;
}
.cert-badge-title {
  font-size: 0.875rem; font-weight: 700; color: var(--text-primary);
  margin-bottom: 4px;
}
.cert-badge-detail {
  font-size: 0.75rem; color: var(--text-muted); line-height: 1.4;
}
[data-theme="dark"] .cert-card { background: var(--white); }
[data-theme="dark"] .cert-badge { background: var(--white); }
[data-theme="dark"] .cert-icon {
  background: linear-gradient(135deg, rgba(77,142,247,0.15), rgba(91,185,213,0.15));
}
/* Clickable cert cards */
.cert-card[data-gallery], .cert-badge[data-gallery] {
  cursor: pointer;
}
.cert-card[data-gallery]:hover, .cert-badge[data-gallery]:hover {
  border-color: var(--accent);
}
.cert-click-hint {
  font-size: 0.7rem; color: var(--text-muted); margin-top: 10px;
  font-weight: 500; opacity: 0.7;
  transition: opacity 0.3s;
}
.cert-card:hover .cert-click-hint,
.cert-badge:hover .cert-click-hint { opacity: 1; color: var(--accent); }

/* ================================================================
   Image Modal / Lightbox
   ================================================================ */
.modal-overlay {
  position: fixed; inset: 0; z-index: 10000; overscroll-behavior: contain;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.35s var(--ease-out), color 0.35s var(--ease-out);
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-container {
  position: relative; max-width: 90vw; max-height: 88vh;
  display: flex; flex-direction: column; align-items: center;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.4s var(--ease-spring);
}
.modal-overlay.active .modal-container {
  transform: scale(1) translateY(0);
}
.modal-image-wrap {
  position: relative; max-height: 75vh; overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: 0 32px 80px rgba(0,0,0,0.5);
}
.modal-image-wrap img {
  max-height: 75vh; max-width: 85vw;
  object-fit: contain; display: block;
  border-radius: var(--radius-lg);
  background: white;
}
.modal-close {
  position: absolute; top: -16px; right: -16px;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,0.15); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; cursor: pointer; border: none;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  transition: color 0.25s var(--ease-out), background 0.25s var(--ease-out), border-color 0.25s var(--ease-out); z-index: 2;
}
.modal-close:hover { background: rgba(255,255,255,0.3); transform: rotate(90deg); }
.modal-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.15); color: white;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; border: none;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  transition: color 0.25s var(--ease-out), background 0.25s var(--ease-out), border-color 0.25s var(--ease-out); z-index: 2;
}
.modal-nav:hover { background: rgba(255,255,255,0.3); }
.modal-prev { left: -60px; }
.modal-next { right: -60px; }
.modal-caption {
  color: rgba(255,255,255,0.8); font-size: 0.9rem;
  margin-top: 16px; text-align: center; font-weight: 500;
}
.modal-counter {
  color: rgba(255,255,255,0.5); font-size: 0.8rem;
  font-family: var(--font-en); margin-top: 6px;
}
@media (max-width: 768px) {
  .modal-prev { left: 8px; }
  .modal-next { right: 8px; }
  .modal-nav { width: 36px; height: 36px; }
  .modal-close { top: 8px; right: 8px; }
  .modal-image-wrap img { max-width: 95vw; max-height: 70vh; }
}

/* ================================================================
   Responsive
   ================================================================ */
@media (min-width: 769px) {
  .solutions-meta { display: block; }
}

@media (max-width: 1024px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .partners-grid { grid-template-columns: repeat(4, 1fr); }
  .about-grid { border-radius: var(--radius-md); }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .timeline-container { padding-left: 24px; }
  .timeline-line { left: 4px; }
  .timeline-year { position: static; text-align: left; margin-bottom: 4px; }
  .timeline-dot { left: -26px; }
  .tech-label { min-width: 90px; font-size: 0.75rem; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-badges { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .theme-toggle { margin-left: 0; margin-right: 8px; }
  .hero { padding: 100px 24px 60px; min-height: auto; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .hero-stat { padding: 18px 12px; }
  .hero-stat-number { font-size: 1.4rem; }
  .hero-title { font-size: clamp(2rem, 7vw, 3rem); }
  .hero-scroll { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-grid > * { grid-column: auto !important; }
  .tilt-card { transform-style: flat; }
  .tilt-card .tilt-shine { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .tech-row { flex-direction: column; align-items: flex-start; gap: 8px; }
  .tech-label { text-align: left; }
  .form-row { grid-template-columns: 1fr; }
  .solutions-header h3 { font-size: 1.1rem; }
  .cert-grid { grid-template-columns: 1fr; }
  .cert-badges { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
  .hero-buttons { flex-direction: column; }
}

/* ================================================================
   Accessibility
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}
:focus-visible {
  outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px;
}
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; top: -100px; left: 16px;
  padding: 12px 24px; background: var(--primary); color: var(--white-always);
  border-radius: var(--radius-sm); font-weight: 600; z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus { top: 16px; }

/* ================================================================
   Theme: Llama (warm amber/orange)
   ================================================================ */
[data-theme="llama"] {
  --primary: #d97706;
  --primary-dark: #b45309;
  --primary-light: #f59e0b;
  --accent: #f97316;
  --accent-light: #fb923c;
  --white: #fffbeb;
  --bg-light: #fef3c7;
  --bg-section: rgba(253,230,138,0.2);
  --text-primary: #451a03;
  --text-secondary: #78350f;
  --text-muted: #a16207;
  --border: #fbbf24;
  --border-light: #fde68a;
  --shadow-sm: 0 1px 3px rgba(180,83,9,0.08);
  --shadow-md: 0 4px 16px rgba(180,83,9,0.12);
  --shadow-lg: 0 12px 40px rgba(180,83,9,0.18);
  --shadow-xl: 0 20px 60px rgba(180,83,9,0.22);
}
[data-theme="llama"] .hero-bg { background: linear-gradient(135deg,#fffbeb 0%,#fef3c7 50%,#fde68a 100%); }
[data-theme="llama"] .hero-orb-1 { background: radial-gradient(circle,rgba(249,115,22,0.3),transparent 65%); }
[data-theme="llama"] .hero-orb-2 { background: radial-gradient(circle,rgba(217,119,6,0.2),transparent 65%); }
[data-theme="llama"] .hero-orb-3 { background: radial-gradient(circle,rgba(245,158,11,0.22),transparent 65%); }
[data-theme="llama"] .hero-glow { background: radial-gradient(ellipse 80% 50% at 50% -10%,rgba(249,115,22,0.18),transparent); }
[data-theme="llama"] .nav::before { background: rgba(255,251,235,0.88); }
[data-theme="llama"] .nav.scrolled::before { background: rgba(255,251,235,0.97); }
[data-theme="llama"] .hero-stat { background: rgba(255,251,235,0.75); border-color: rgba(217,119,6,0.15); }
[data-theme="llama"] .hero-badge { background: rgba(217,119,6,0.08); border-color: rgba(217,119,6,0.2); }
[data-theme="llama"] .about-card { background: var(--white); }
[data-theme="llama"] .about-card:hover { background: #fffbeb; }
[data-theme="llama"] .portfolio-card { background: var(--white); }
[data-theme="llama"] .cert-card, [data-theme="llama"] .cert-badge { background: var(--white); }
[data-theme="llama"] .contact-form { background: var(--white); }
[data-theme="llama"] .form-group input,
[data-theme="llama"] .form-group select,
[data-theme="llama"] .form-group textarea { background: #fffbeb; border-color: #fbbf24; color: #451a03; }
[data-theme="llama"] .form-group input:focus,
[data-theme="llama"] .form-group select:focus,
[data-theme="llama"] .form-group textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(249,115,22,0.15); background: #ffffff; }
[data-theme="llama"] .footer { background: #451a03; }
[data-theme="llama"] .mobile-menu { background: rgba(255,251,235,0.98); }
[data-theme="llama"] ::selection { background: var(--accent); color: var(--white-always); }

/* ================================================================
   Theme: Hackintosh (terminal green)
   ================================================================ */
[data-theme="hackintosh"] {
  --primary: #22c55e;
  --primary-dark: #16a34a;
  --primary-light: #4ade80;
  --accent: #10b981;
  --accent-light: #34d399;
  --white: #0a0a0a;
  --bg-light: #111111;
  --bg-section: #0d1117;
  --text-primary: #22c55e;
  --text-secondary: #86efac;
  --text-muted: #4ade80;
  --border: #1a3a2a;
  --border-light: #14532d;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.6);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.7);
}
[data-theme="hackintosh"] body { font-family: var(--font-mono); }
[data-theme="hackintosh"] .hero-bg { background: linear-gradient(135deg,#0a0a0a 0%,#0d1117 50%,#0a1a0f 100%); }
[data-theme="hackintosh"] .hero-orb-1 { background: radial-gradient(circle,rgba(34,197,94,0.2),transparent 65%); }
[data-theme="hackintosh"] .hero-orb-2 { background: radial-gradient(circle,rgba(16,185,129,0.15),transparent 65%); }
[data-theme="hackintosh"] .hero-orb-3 { background: radial-gradient(circle,rgba(74,222,128,0.12),transparent 65%); }
[data-theme="hackintosh"] .hero-glow { background: radial-gradient(ellipse 80% 50% at 50% -10%,rgba(34,197,94,0.15),transparent); }
[data-theme="hackintosh"] .hero-title { color: #22c55e; text-shadow: 0 0 30px rgba(34,197,94,0.3); }
[data-theme="hackintosh"] .nav::before { background: rgba(10,10,10,0.92); }
[data-theme="hackintosh"] .nav.scrolled::before { background: rgba(10,10,10,0.98); border-bottom-color: #1a3a2a; }
[data-theme="hackintosh"] .hero-stat { background: rgba(17,17,17,0.85); border-color: #1a3a2a; }
[data-theme="hackintosh"] .hero-badge { background: rgba(34,197,94,0.08); border-color: rgba(34,197,94,0.25); }
[data-theme="hackintosh"] .about-card { background: #111111; }
[data-theme="hackintosh"] .about-card:hover { background: #141f14; }
[data-theme="hackintosh"] .about-grid { background: var(--border); }
[data-theme="hackintosh"] .about-icon { background: linear-gradient(135deg,rgba(34,197,94,0.1),rgba(16,185,129,0.1)); }
[data-theme="hackintosh"] .portfolio-card { background: #111111; border-color: #1a3a2a; }
[data-theme="hackintosh"] .portfolio-tag { background: rgba(34,197,94,0.1); color: var(--accent); }
[data-theme="hackintosh"] .portfolio-statement { background: linear-gradient(135deg,#0a2a14,#0d3d1e); }
[data-theme="hackintosh"] .solutions-tag { color: var(--accent); border-color: var(--accent); }
[data-theme="hackintosh"] .solutions-tag:hover { background: var(--accent); color: #0a0a0a; }
[data-theme="hackintosh"] .tech-item { background: #111111; border-color: #1a3a2a; }
[data-theme="hackintosh"] .tech-item:hover { border-color: var(--accent); color: var(--accent); }
[data-theme="hackintosh"] .partner-logo { filter: grayscale(100%) brightness(0.4) sepia(100%) hue-rotate(80deg) saturate(300%); opacity: 0.6; }
[data-theme="hackintosh"] .partner-item:hover .partner-logo { filter: grayscale(0%) brightness(1); opacity: 1; }
[data-theme="hackintosh"] .cert-card, [data-theme="hackintosh"] .cert-badge { background: #111111; border-color: #1a3a2a; }
[data-theme="hackintosh"] .cert-icon { background: linear-gradient(135deg,rgba(34,197,94,0.1),rgba(16,185,129,0.1)); }
[data-theme="hackintosh"] .contact-form { background: #111111; border-color: #1a3a2a; }
[data-theme="hackintosh"] .form-group input,
[data-theme="hackintosh"] .form-group select,
[data-theme="hackintosh"] .form-group textarea { background: #0a0a0a; border-color: #1a3a2a; color: var(--text-primary); }
[data-theme="hackintosh"] .form-group input:focus,
[data-theme="hackintosh"] .form-group select:focus,
[data-theme="hackintosh"] .form-group textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(34,197,94,0.15); background: #0d1a0d; }
[data-theme="hackintosh"] .footer { background: #050f09; border-top: 1px solid #1a3a2a; }
[data-theme="hackintosh"] .mobile-menu { background: rgba(10,10,10,0.98); }
[data-theme="hackintosh"] .nav-logo img { filter: brightness(0) saturate(100%) invert(53%) sepia(93%) saturate(400%) hue-rotate(95deg) brightness(95%); }
[data-theme="hackintosh"] .btn-primary { background: #22c55e; box-shadow: 0 6px 20px rgba(34,197,94,0.3); }
[data-theme="hackintosh"] .btn-primary:hover { background: #16a34a; box-shadow: 0 10px 32px rgba(34,197,94,0.4); }
[data-theme="hackintosh"] .btn-secondary { color: #22c55e; border-color: #22c55e; }
[data-theme="hackintosh"] .btn-secondary:hover { background: #22c55e; color: #0a0a0a; }
[data-theme="hackintosh"] .nav-cta { background: #22c55e; }
[data-theme="hackintosh"] .nav-cta:hover { background: #16a34a; }
[data-theme="hackintosh"] .btn-submit { background: #22c55e; }
[data-theme="hackintosh"] .btn-submit:hover { background: #16a34a; }
[data-theme="hackintosh"] .gradient-text { color: #4ade80; }
[data-theme="hackintosh"] ::selection { background: var(--accent); color: #0a0a0a; }
[data-theme="hackintosh"] body::after {
  content: ''; position: fixed; inset: 0; z-index: 9998; pointer-events: none;
  background: repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,255,70,0.012) 2px,rgba(0,255,70,0.012) 4px);
}
[data-theme="hackintosh"] .nav-toggle span { background: #22c55e; }

/* ================================================================
   Theme: Bitboy (retro 8-bit)
   ================================================================ */
[data-theme="bitboy"] {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  --accent: #ef4444;
  --accent-light: #f87171;
  --white: #fafafa;
  --bg-light: #f0f0f0;
  --bg-section: #e8e8e8;
  --text-primary: #111111;
  --text-secondary: #333333;
  --text-muted: #666666;
  --border: #cccccc;
  --border-light: #e0e0e0;
  --shadow-sm: 2px 2px 0px rgba(0,0,0,0.15);
  --shadow-md: 4px 4px 0px rgba(0,0,0,0.15);
  --shadow-lg: 6px 6px 0px rgba(0,0,0,0.15);
  --shadow-xl: 8px 8px 0px rgba(0,0,0,0.15);
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 4px;
  --radius-xl: 4px;
}
[data-theme="bitboy"] .hero-bg { background: linear-gradient(135deg,#e8f0fe 0%,#dbeafe 50%,#e8f4fd 100%); }
[data-theme="bitboy"] .hero-orb-1 { background: radial-gradient(circle,rgba(59,130,246,0.25),transparent 65%); }
[data-theme="bitboy"] .hero-orb-2 { background: radial-gradient(circle,rgba(239,68,68,0.18),transparent 65%); }
[data-theme="bitboy"] .hero-orb-3 { background: radial-gradient(circle,rgba(250,204,21,0.2),transparent 65%); }
[data-theme="bitboy"] .nav::before { background: rgba(250,250,250,0.92); }
[data-theme="bitboy"] .nav.scrolled::before { background: rgba(250,250,250,0.98); border-bottom: 2px solid #cccccc; }
[data-theme="bitboy"] .hero-stat { background: rgba(250,250,250,0.85); border: 2px solid #cccccc; border-radius: 4px; box-shadow: 3px 3px 0 rgba(0,0,0,0.1); }
[data-theme="bitboy"] .hero-badge { background: rgba(59,130,246,0.08); border: 2px solid rgba(59,130,246,0.3); border-radius: 4px; }
[data-theme="bitboy"] .btn-primary, [data-theme="bitboy"] .btn-secondary,
[data-theme="bitboy"] .nav-cta, [data-theme="bitboy"] .btn-submit { border-radius: 4px; }
[data-theme="bitboy"] .portfolio-card { border: 2px solid var(--border); border-radius: 4px; box-shadow: 4px 4px 0 rgba(0,0,0,0.08); }
[data-theme="bitboy"] .portfolio-card:hover { transform: translate(-2px,-2px); box-shadow: 6px 6px 0 rgba(0,0,0,0.12); }
[data-theme="bitboy"] .cert-card, [data-theme="bitboy"] .cert-badge { border: 2px solid var(--border); border-radius: 4px; }
[data-theme="bitboy"] .contact-form { border: 2px solid var(--border); border-radius: 4px; }
[data-theme="bitboy"] .form-group input,
[data-theme="bitboy"] .form-group select,
[data-theme="bitboy"] .form-group textarea { background: #ffffff; border: 2px solid #cccccc; border-radius: 2px; color: #111111; }
[data-theme="bitboy"] .form-group input:focus,
[data-theme="bitboy"] .form-group select:focus,
[data-theme="bitboy"] .form-group textarea:focus { border-color: var(--primary); box-shadow: 2px 2px 0 rgba(59,130,246,0.2); background: #ffffff; }
[data-theme="bitboy"] .footer { background: #111111; }
[data-theme="bitboy"] .mobile-menu { background: rgba(250,250,250,0.98); border-bottom: 2px solid var(--border); }
[data-theme="bitboy"] .solutions-tag { border-radius: 2px; }
[data-theme="bitboy"] .tech-item { border-radius: 2px; border: 1px solid var(--border); }
[data-theme="bitboy"] ::selection { background: var(--accent); color: #ffffff; }

/* ================================================================
   Theme: Designer (elegant minimal)
   ================================================================ */
[data-theme="designer"] {
  --primary: #8b5cf6;
  --primary-dark: #7c3aed;
  --primary-light: #a78bfa;
  --accent: #ec4899;
  --accent-light: #f472b6;
  --white: #fafaf9;
  --bg-light: #f5f5f4;
  --bg-section: #fafaf9;
  --text-primary: #1c1917;
  --text-secondary: #57534e;
  --text-muted: #a8a29e;
  --border: #e7e5e4;
  --border-light: #f5f5f4;
  --shadow-sm: 0 1px 3px rgba(28,25,23,0.05);
  --shadow-md: 0 4px 20px rgba(28,25,23,0.07);
  --shadow-lg: 0 12px 48px rgba(28,25,23,0.09);
  --shadow-xl: 0 24px 64px rgba(28,25,23,0.11);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
}
[data-theme="designer"] .hero-bg { background: linear-gradient(135deg,#fafaf9 0%,#f5f0ff 50%,#fdf2f8 100%); }
[data-theme="designer"] .hero-orb-1 { background: radial-gradient(circle,rgba(139,92,246,0.2),transparent 65%); }
[data-theme="designer"] .hero-orb-2 { background: radial-gradient(circle,rgba(236,72,153,0.15),transparent 65%); }
[data-theme="designer"] .hero-orb-3 { background: radial-gradient(circle,rgba(167,139,250,0.18),transparent 65%); }
[data-theme="designer"] .hero-glow { background: radial-gradient(ellipse 80% 50% at 50% -10%,rgba(139,92,246,0.15),transparent); }
[data-theme="designer"] .nav::before { background: rgba(250,250,249,0.88); }
[data-theme="designer"] .nav.scrolled::before { background: rgba(250,250,249,0.97); }
[data-theme="designer"] .hero-stat { background: rgba(250,250,249,0.8); border-color: rgba(139,92,246,0.12); }
[data-theme="designer"] .hero-badge { background: rgba(139,92,246,0.06); border-color: rgba(139,92,246,0.18); }
[data-theme="designer"] .section { padding: 120px 0; }
[data-theme="designer"] .about-card { background: var(--white); }
[data-theme="designer"] .about-card:hover { background: #f8f6ff; }
[data-theme="designer"] .portfolio-card { background: var(--white); }
[data-theme="designer"] .cert-card, [data-theme="designer"] .cert-badge { background: var(--white); }
[data-theme="designer"] .contact-form { background: var(--white); }
[data-theme="designer"] .form-group input,
[data-theme="designer"] .form-group select,
[data-theme="designer"] .form-group textarea { background: var(--white); border-color: var(--border); color: var(--text-primary); }
[data-theme="designer"] .form-group input:focus,
[data-theme="designer"] .form-group select:focus,
[data-theme="designer"] .form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(139,92,246,0.12); background: #ffffff; }
[data-theme="designer"] .footer { background: #1c1917; }
[data-theme="designer"] .mobile-menu { background: rgba(250,250,249,0.98); }
[data-theme="designer"] .btn-primary { background: var(--primary); box-shadow: 0 6px 20px rgba(139,92,246,0.3); }
[data-theme="designer"] .btn-primary:hover { background: var(--primary-dark); box-shadow: 0 10px 32px rgba(139,92,246,0.4); }
[data-theme="designer"] .btn-secondary { color: var(--primary); border-color: var(--primary); }
[data-theme="designer"] .btn-secondary:hover { background: var(--primary); color: var(--white-always); }
[data-theme="designer"] .nav-cta { background: var(--primary); }
[data-theme="designer"] .nav-cta:hover { background: var(--primary-dark); }
[data-theme="designer"] .btn-submit { background: var(--primary); }
[data-theme="designer"] .btn-submit:hover { background: var(--primary-dark); }
[data-theme="designer"] .gradient-text { color: var(--primary); }
[data-theme="designer"] ::selection { background: var(--accent); color: var(--white-always); }

/* ================================================================
   Theme Selector UI
   ================================================================ */
.theme-selector { display: flex; align-items: center; gap: 6px; margin-left: 8px; position: relative; }
.theme-selector-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 12px; border-radius: 50px;
  background: rgba(11,45,110,0.06); border: 1px solid var(--border);
  font-size: 0.78rem; font-weight: 600; color: var(--text-secondary);
  cursor: pointer; white-space: nowrap; flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  font-family: var(--font-en); letter-spacing: 0.02em;
}
.theme-selector-btn:hover { background: rgba(11,45,110,0.1); color: var(--primary); border-color: var(--primary); }
/* .theme-dot replaced by .theme-icon (iconify-icon) */
.theme-dropdown {
  position: absolute; top: calc(100% + 10px); right: 0;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 8px;
  box-shadow: var(--shadow-lg);
  display: none; min-width: 160px; z-index: 2000;
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
}
.theme-dropdown.open { display: block; animation: dropIn 0.18s var(--ease-out); }
@keyframes dropIn { from { opacity: 0; transform: translateY(-6px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
.theme-option {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius-sm);
  cursor: pointer; font-size: 0.825rem; font-weight: 500;
  color: var(--text-secondary); transition: background 0.15s, color 0.15s;
  font-family: var(--font-en);
  border: none; width: 100%; text-align: left; background: none;
}
.theme-option:hover { background: rgba(11,45,110,0.05); color: var(--primary); }
.theme-option.active { color: var(--primary); font-weight: 700; }
/* .opt-dot replaced by .opt-icon (iconify-icon) */
.theme-selector-mobile { display: none; align-items: center; gap: 6px; margin-right: 8px; flex-shrink: 0; }
@media (max-width: 768px) {
  .theme-selector { display: none; }
  .theme-selector-mobile { display: flex; }
  .theme-selector-mobile .theme-selector-btn {
    padding: 6px 10px; font-size: 0.72rem;
    min-height: 44px; flex-shrink: 0;
  }
  .theme-selector-mobile .theme-dropdown {
    position: fixed;
    top: var(--nav-height);
    right: 16px;
    left: auto;
  }
  .theme-option { min-height: 44px; }
}

/* ================================================================
   Hero glow enhancement
   ================================================================ */
.hero-glow {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(91,185,213,0.15), transparent);
  animation: glowPulse 6s ease-in-out infinite;
}
@keyframes glowPulse { 0%,100% { opacity: 0.8; transform: scale(1); } 50% { opacity: 1; transform: scale(1.05); } }
[data-theme="dark"] .hero-glow { background: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(77,142,247,0.2), transparent); }

/* ================================================================
   Enhanced glassmorphism
   ================================================================ */
.hero-stat {
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
}

/* ================================================================
   Glow border hover
   ================================================================ */
.portfolio-card:hover, .cert-card:hover {
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(91,185,213,0.2);
}

/* ================================================================
   touch-action + text-wrap
   ================================================================ */
a, button, [role="button"] { touch-action: manipulation; }
.section-title { text-wrap: balance; }

/* ================================================================
   overscroll on modal
   ================================================================ */
.modal-overlay { overscroll-behavior: contain; }

/* ================================================================
   section-label uses Space Grotesk
   ================================================================ */
.section-label { font-family: var(--font-en); }
.hero-stat-number { font-family: var(--font-en); }
.timeline-year { font-family: var(--font-mono); }
.cert-number { font-family: var(--font-mono); }
.footer-slogan { font-family: var(--font-en); }
.portfolio-label { font-family: var(--font-en); }

/* ================================================================
   Iconify Icon Integration (icon.nexol.co.kr)
   ================================================================ */
.opt-icon {
  font-size: 14px;
  flex-shrink: 0;
  line-height: 1;
  transition: color 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}
.theme-option:hover .opt-icon {
  transform: scale(1.25) rotate(10deg);
}
.theme-option.active .opt-icon {
  transform: scale(1.15);
}
.theme-selector-btn .theme-icon {
  font-size: 13px;
  flex-shrink: 0;
  line-height: 1;
  transition: color 0.3s var(--ease-out), transform 0.4s var(--ease-out);
}
.theme-selector-btn:hover .theme-icon {
  transform: rotate(20deg) scale(1.1);
}
.tech-item-icon {
  font-size: 16px;
  width: 16px;
  height: 16px;
  min-width: 16px;
  flex-shrink: 0;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
  transition: opacity 0.3s var(--ease-out), transform 0.3s var(--ease-out), color 0.3s var(--ease-out);
}
.tech-item:hover .tech-item-icon {
  opacity: 1;
  transform: scale(1.2);
}
.solutions-header-icon {
  font-size: 22px;
  color: var(--accent);
  flex-shrink: 0;
  line-height: 1;
  margin-right: 14px;
  transition: color 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}
.solutions-item.active .solutions-header-icon {
  color: var(--primary);
  transform: scale(1.12);
}
.solutions-header:hover .solutions-header-icon {
  transform: scale(1.18) rotate(5deg);
}
/* Hackintosh: monochrome green icons */
[data-theme="hackintosh"] .tech-item-icon { color: var(--text-muted); }
[data-theme="hackintosh"] .tech-item:hover .tech-item-icon { color: var(--accent); }
/* Bitboy: pixel aesthetic */
[data-theme="bitboy"] .tech-item-icon { image-rendering: pixelated; }
[data-theme="bitboy"] .opt-icon { image-rendering: pixelated; }
/* Designer: luxurious transitions */
[data-theme="designer"] .opt-icon,
[data-theme="designer"] .tech-item-icon,
[data-theme="designer"] .solutions-header-icon { transition-duration: 0.5s; }

/* ================================================================
   Custom Select Dropdown
   ================================================================ */
.custom-select { position: relative; width: 100%; }
.custom-select-trigger {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; padding: 12px 16px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 0.9rem; color: var(--text-muted); background: var(--bg-light);
  cursor: pointer; transition: all 0.25s var(--ease-out); outline: none; user-select: none;
}
.custom-select-trigger.has-value { color: var(--text-primary); }
.custom-select-trigger:hover { border-color: var(--primary-light); }
.custom-select-trigger.open {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(11,45,110,0.08);
  background: var(--white);
}
.custom-select-trigger svg {
  flex-shrink: 0; stroke: var(--text-muted); transition: transform 0.25s var(--ease-out);
}
.custom-select-trigger.open svg { transform: rotate(180deg); }
.custom-select-options {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
  z-index: 100; opacity: 0; visibility: hidden;
  transform: translateY(-8px); transition: all 0.2s var(--ease-out);
  max-height: none; overflow-y: visible;
}
.custom-select-options.open { opacity: 1; visibility: visible; transform: translateY(0); }
.custom-select-option {
  padding: 10px 16px; font-size: 0.875rem; color: var(--text-secondary);
  cursor: pointer; transition: all 0.15s ease;
}
.custom-select-option:hover { background: var(--bg-section); color: var(--primary); }
.custom-select-option.selected { color: var(--primary); font-weight: 600; background: rgba(11,45,110,0.04); }
.custom-select-option:first-child { border-radius: var(--radius-sm) var(--radius-sm) 0 0; }
.custom-select-option:last-child { border-radius: 0 0 var(--radius-sm) var(--radius-sm); }
[data-theme="dark"] .custom-select-trigger { background: #1c2128; border-color: var(--border); }
[data-theme="dark"] .custom-select-trigger.open { background: var(--white); border-color: var(--primary); }
[data-theme="dark"] .custom-select-options { background: #1c2128; border-color: var(--border); }
[data-theme="dark"] .custom-select-option:hover { background: #21262d; }
[data-theme="dark"] .custom-select-option.selected { background: rgba(77,142,247,0.1); color: var(--primary); }