/* ============================================================
   33VISION Labs — Design System
   Apple Liquid Glass + Dark Premium Aesthetic
   ============================================================ */

/* ---------- Fonts: System Stack ---------- */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors — Dark Foundation */
  --bg-void:        #030305;
  --bg-deep:        #07070b;
  --bg-surface:     #0c0c14;
  --bg-elevated:    #12121e;

  /* Glass */
  --glass-bg:       rgba(255, 255, 255, 0.025);
  --glass-bg-hover: rgba(255, 255, 255, 0.05);
  --glass-border:   rgba(255, 255, 255, 0.07);
  --glass-border-hover: rgba(255, 255, 255, 0.15);
  --glass-glow:     rgba(255, 255, 255, 0.03);

  /* Text */
  --text-primary:   #f5f5f7;
  --text-secondary: #a1a1aa;
  --text-tertiary:  #6b6b76;
  --text-muted:     #3e3e4a;

  /* Accent Colors */
  --accent-blue:    #0A84FF;
  --accent-violet:  #5E5CE6;
  --accent-rose:    #FF375F;
  --accent-pink:    #FF6AC1;
  --accent-orange:  #FF9F0A;
  --accent-emerald: #30D158;
  --accent-teal:    #64D2FF;
  --accent-cyan:    #00E5CC;

  /* Gradients */
  --gradient-blue-violet: linear-gradient(135deg, var(--accent-blue), var(--accent-violet));
  --gradient-rose-orange: linear-gradient(135deg, var(--accent-rose), var(--accent-orange));
  --gradient-emerald-teal: linear-gradient(135deg, var(--accent-emerald), var(--accent-teal));
  --gradient-text: linear-gradient(135deg, #ffffff 0%, #a1a1aa 60%, #6b6b76 100%);

  /* Typography */
  --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-body:    -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Spacing (8px grid) */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;

  /* Radii */
  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --radius-2xl: 36px;
  --radius-pill: 100px;

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring:   cubic-bezier(0.25, 0.8, 0.25, 1);
  --duration-fast: 200ms;
  --duration-base: 400ms;
  --duration-slow: 700ms;

  /* Blur */
  --blur-glass: 24px;
  --blur-bg: 80px;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-void);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
  line-height: 1.6;
}

::selection {
  background: rgba(10, 132, 255, 0.3);
  color: #fff;
}

::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ---------- Typography ---------- */
.display-xl {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.04em;
}

.display-lg {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.display-md {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.title-lg {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.body-lg {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.body-md {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.body-sm {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.caption {
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
}

.label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

/* ---------- Text Effects ---------- */
.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-shimmer {
  background: linear-gradient(
    90deg,
    #ffffff 0%,
    #a1a1aa 20%,
    #ffffff 40%,
    #a1a1aa 60%,
    #ffffff 80%,
    #a1a1aa 100%
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: textShimmer 8s linear infinite;
}

@keyframes textShimmer {
  0%   { background-position: 200% 50%; }
  100% { background-position: -200% 50%; }
}

.text-blue   { color: var(--accent-blue); }
.text-violet { color: var(--accent-violet); }
.text-rose   { color: var(--accent-rose); }
.text-emerald{ color: var(--accent-emerald); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-narrow {
  max-width: 960px;
}

.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-md);
}

/* ---------- Liquid Background ---------- */
.liquid-background {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: var(--bg-void);
}

.liquid-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.3;
  will-change: transform;
  contain: layout style;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(10, 132, 255, 0.35), transparent 70%);
  top: -15%;
  left: -10%;
  animation: orbFloat1 30s ease-in-out infinite alternate;
}

.orb-2 {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(94, 92, 230, 0.3), transparent 70%);
  bottom: -20%;
  right: -15%;
  animation: orbFloat2 35s ease-in-out infinite alternate;
}

.orb-3 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(255, 55, 95, 0.2), transparent 70%);
  top: 45%;
  left: 35%;
  animation: orbFloat3 25s ease-in-out infinite alternate;
}

.orb-4 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(48, 209, 88, 0.15), transparent 70%);
  top: 20%;
  right: 10%;
  animation: orbFloat4 28s ease-in-out infinite alternate;
}

@keyframes orbFloat1 {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(8vw, 12vh) scale(1.1); }
  100% { transform: translate(3vw, -8vh) scale(1.05); }
}

@keyframes orbFloat2 {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(-8vw, -8vh) scale(1.15); }
  100% { transform: translate(6vw, 10vh) scale(0.95); }
}

@keyframes orbFloat3 {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(10vw, -8vh) scale(1.2); }
  100% { transform: translate(5vw, -5vh) scale(1.1); }
}

@keyframes orbFloat4 {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(-10vw, 8vh) scale(1.1); }
  100% { transform: translate(8vw, -10vh) scale(0.9); }
}

/* ---------- Glass Card ---------- */
.glass-card {
  background: rgba(12, 12, 20, 0.75);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
  transition:
    border-color var(--duration-base) var(--ease-spring),
    box-shadow var(--duration-base) var(--ease-spring);
  contain: layout style;
}

.glass-card:hover {
  border-color: var(--glass-border-hover);
  box-shadow:
    0 4px 20px rgba(0, 0, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* Card glow accent — static CSS only, no blur filter */
.glass-card .card-glow {
  display: none;
}

/* Inner border gradient (top highlight) */
.glass-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.08),
    transparent
  );
  pointer-events: none;
  z-index: 2;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) var(--space-lg);
  transition: all var(--duration-base) var(--ease-spring);
}

.nav.scrolled {
  background: rgba(3, 3, 5, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-brand .brand-mark {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.nav-brand .brand-mark span {
  font-weight: 300;
  color: var(--text-tertiary);
  margin-left: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-tertiary);
  transition: color var(--duration-fast) ease;
  position: relative;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent-blue);
  transition: width var(--duration-base) var(--ease-out-expo);
}

.nav-links a:hover::after {
  width: 100%;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-pill);
  padding: 3px;
  gap: 2px;
  cursor: pointer;
}

.lang-toggle button {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 5px 14px;
  border: none;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-spring);
}

.lang-toggle button.active {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.lang-toggle button:hover:not(.active) {
  color: var(--text-secondary);
}

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-5xl) var(--space-lg) var(--space-5xl);
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 20px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: var(--space-2xl);
  animation: fadeInUp 1s var(--ease-out-expo) 0.2s both;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  max-width: 900px;
  margin-bottom: var(--space-lg);
  animation: fadeInUp 1s var(--ease-out-expo) 0.4s both;
}

.hero-subtitle {
  max-width: 640px;
  margin-bottom: var(--space-2xl);
  animation: fadeInUp 1s var(--ease-out-expo) 0.6s both;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  animation: fadeInUp 1s var(--ease-out-expo) 0.8s both;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  animation: fadeInUp 1s var(--ease-out-expo) 1s both;
  z-index: 1;
  pointer-events: none;
}

/* Ensure hero doesn't bleed into concepts */
.hero {
  overflow: hidden;
}

.scroll-indicator .scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-tertiary), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50%      { opacity: 0.3; transform: scaleY(0.6); }
}

/* Particle canvas */
#particle-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.hero > *:not(.scroll-indicator):not(#particle-canvas) {
  position: relative;
  z-index: 1;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-spring);
  text-decoration: none;
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-void);
}

.btn-primary:hover {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.15);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--glass-border-hover);
  color: var(--text-primary);
  transform: translateY(-2px);
}

/* ---------- Badge ---------- */
.project-badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

/* ---------- Icon Box ---------- */
.icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform var(--duration-base) var(--ease-spring);
}

.glass-card:hover .icon-box {
  transform: scale(1.1) rotate(-3deg);
}

.icon-box.blue    { background: linear-gradient(135deg, rgba(10, 132, 255, 0.15), rgba(94, 92, 230, 0.15)); }
.icon-box.rose    { background: linear-gradient(135deg, rgba(255, 55, 95, 0.15), rgba(255, 106, 193, 0.15)); }
.icon-box.emerald { background: linear-gradient(135deg, rgba(48, 209, 88, 0.15), rgba(100, 210, 255, 0.15)); }

.icon-box svg {
  width: 24px;
  height: 24px;
}

.icon-box.blue svg    { color: var(--accent-blue); }
.icon-box.rose svg    { color: var(--accent-rose); }
.icon-box.emerald svg { color: var(--accent-emerald); }

/* ---------- Section Header ---------- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header .label {
  margin-bottom: var(--space-md);
  display: block;
}

.section-header .display-md {
  margin-bottom: var(--space-md);
}

/* ---------- Bento Cards (Project Grid) ---------- */
.bento-grid .card-featured {
  grid-column: span 12;
  min-height: 520px;
  padding: var(--space-3xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}

.bento-grid .card-medium {
  grid-column: span 6;
  min-height: 480px;
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}

.bento-grid .card-wide {
  grid-column: span 6;
  min-height: 480px;
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-2xl);
}

.card-content {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.card-content .display-md,
.card-content .title-lg {
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.card-content .body-md,
.card-content .body-sm {
  margin-bottom: var(--space-lg);
}

/* Card link arrow */
.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--duration-base) var(--ease-spring);
}

.card-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--duration-base) var(--ease-spring);
}

.glass-card:hover .card-link svg {
  transform: translateX(4px);
}

.card-link.blue    { color: var(--accent-blue); }
.card-link.rose    { color: var(--accent-rose); }
.card-link.emerald { color: var(--accent-emerald); }

.glass-card:hover .card-link.blue    { color: #3da1ff; }
.glass-card:hover .card-link.rose    { color: #ff6b8a; }
.glass-card:hover .card-link.emerald { color: #5de082; }

/* ---------- Workflow Steps (Cyrify Card) ---------- */
.workflow-steps {
  display: flex;
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.workflow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  flex: 1;
  text-align: center;
  transition: all var(--duration-base) var(--ease-spring);
}

.workflow-step:hover {
  background: rgba(10, 132, 255, 0.06);
  border-color: rgba(10, 132, 255, 0.15);
}

.workflow-step .step-num {
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--accent-blue);
  letter-spacing: 0.1em;
}

.workflow-step .step-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.workflow-step .step-connector {
  color: var(--text-muted);
}

/* ---------- Stats Row ---------- */
.stats-row {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-item .stat-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-item .stat-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

/* ---------- Before/After Visual ---------- */
.ba-visual {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.ba-frame {
  width: 140px;
  height: 180px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ba-frame.before {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  filter: sepia(0.3) contrast(0.8);
}

.ba-frame.after {
  background: linear-gradient(135deg, #2a2a4a, #3a3a6a);
  box-shadow: 0 0 30px rgba(48, 209, 88, 0.1);
}

.ba-frame .ba-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: rgba(0, 0, 0, 0.5);
  position: absolute;
  bottom: 10px;
}

.ba-arrow {
  color: var(--text-muted);
  font-size: 1.5rem;
  animation: arrowPulse 2s ease-in-out infinite;
}

@keyframes arrowPulse {
  0%, 100% { opacity: 1; transform: translateX(0); }
  50%      { opacity: 0.4; transform: translateX(4px); }
}

/* ---------- Tech Strip ---------- */
.tech-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
  padding: var(--space-3xl) var(--space-lg);
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-tertiary);
  transition: all var(--duration-base) var(--ease-spring);
}

.tech-badge:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
}

.tech-badge svg {
  width: 14px;
  height: 14px;
}

/* ---------- Footer ---------- */
.footer {
  padding: var(--space-3xl) var(--space-lg) var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.footer-brand span {
  font-weight: 300;
  color: var(--text-tertiary);
}

.footer-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  list-style: none;
}

.footer-links a {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  transition: color var(--duration-fast) ease;
}

.footer-links a:hover {
  color: var(--text-secondary);
}

.footer-copyright {
  margin-top: var(--space-xl);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ---------- Scroll Reveal Animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }

/* ---------- Fade In Up Animation ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ---------- Image Container in Cards ---------- */
.card-image-area {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 45%;
  height: 80%;
  z-index: 0;
  overflow: hidden;
  border-radius: var(--radius-xl);
  mask-image: linear-gradient(to left, rgba(0,0,0,0.5), transparent);
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.5), transparent);
}

.card-image-area img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
  transition: opacity var(--duration-slow) var(--ease-spring);
}

.glass-card:hover .card-image-area img {
  opacity: 0.6;
}

/* ---------- Mobile Nav Toggle ---------- */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: var(--space-sm);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

/* Mobile menu overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(3, 3, 5, 0.95);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-spring);
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--duration-fast) ease;
}

.mobile-menu a:hover {
  color: var(--text-primary);
}

.mobile-menu .close-btn {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}

/* ---------- i18n crossfade ---------- */
[data-i18n] {
  transition: opacity 0.3s ease;
}

.i18n-switching [data-i18n] {
  opacity: 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .bento-grid .card-featured {
    grid-column: span 12;
    min-height: 420px;
    padding: var(--space-2xl);
  }

  .bento-grid .card-medium,
  .bento-grid .card-wide {
    grid-column: span 12;
    min-height: 400px;
  }

  .workflow-steps {
    flex-wrap: wrap;
  }

  .card-image-area {
    display: none;
  }

  .stats-row {
    flex-wrap: wrap;
  }
}

@media (max-width: 768px) {
  :root {
    --space-lg: 20px;
  }

  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: var(--space-4xl) var(--space-md);
  }

  .display-xl {
    font-size: clamp(2.5rem, 10vw, 4rem);
  }

  .bento-grid .card-featured,
  .bento-grid .card-medium,
  .bento-grid .card-wide {
    grid-column: span 12;
    min-height: 350px;
    padding: var(--space-xl);
  }

  .bento-grid {
    gap: var(--space-md);
  }

  .workflow-steps {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .workflow-step {
    flex-direction: row;
    text-align: left;
  }

  .stats-row {
    flex-direction: column;
    gap: var(--space-md);
  }

  .ba-visual {
    flex-direction: column;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .tech-strip {
    gap: var(--space-sm);
  }

  .footer-links {
    flex-direction: column;
    gap: var(--space-md);
  }

  .lang-toggle {
    order: -1;
  }
}

@media (max-width: 480px) {
  .glass-card {
    border-radius: var(--radius-lg);
  }

  .container {
    padding: 0 var(--space-md);
  }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .liquid-orb { display: none; }
  .scroll-indicator .scroll-line { animation: none; }
  #particle-canvas { display: none; }
}