/* ============================================================
   INPRO ACADEMY - DESIGN SYSTEM
   Complete CSS Design System: Variables, Typography, Components
   ============================================================ */

/* ── Google Fonts Import ─────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── CSS Custom Properties ───────────────────────────────── */
:root {
  /* Primary Colors */
  --color-primary:       #0A2463;
  --color-primary-light: #1a3d9f;
  --color-primary-dark:  #061740;
  --color-cyan:          #00D9FF;
  --color-cyan-dark:     #00b8d9;
  --color-green:         #00E676;
  --color-green-dark:    #00c853;

  /* Secondary Colors */
  --color-dark:          #1A1D29;
  --color-dark-2:        #242736;
  --color-dark-3:        #2e3147;
  --color-gray-light:    #F5F7FA;
  --color-gray:          #8892a4;
  --color-gray-mid:      #b0bac8;
  --color-orange:        #FF6B35;
  --color-orange-dark:   #e85a26;
  --color-purple:        #7B2CBF;
  --color-purple-light:  #C77DFF;

  /* Semantic Colors */
  --color-success:       #4CAF50;
  --color-warning:       #FF9800;
  --color-error:         #F44336;
  --color-info:          #2196F3;

  /* Gradient Presets */
  --grad-primary:       linear-gradient(135deg, #0A2463 0%, #1a3d9f 100%);
  --grad-cyan:          linear-gradient(135deg, #00D9FF 0%, #0A2463 100%);
  --grad-hero:          linear-gradient(135deg, #0A2463 0%, #1a3d9f 50%, #7B2CBF 100%);
  --grad-orange:        linear-gradient(135deg, #FF6B35 0%, #ff9500 100%);
  --grad-glass:         linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  --grad-purple:        linear-gradient(135deg, #7B2CBF 0%, #C77DFF 100%);
  --grad-green:         linear-gradient(135deg, #00E676 0%, #00b8d9 100%);
  --grad-mesh:          radial-gradient(ellipse at 20% 50%, rgba(0,217,255,0.15) 0%, transparent 50%),
                        radial-gradient(ellipse at 80% 20%, rgba(123,44,191,0.15) 0%, transparent 50%),
                        radial-gradient(ellipse at 50% 80%, rgba(0,230,118,0.08) 0%, transparent 50%);

  /* Typography */
  --font-primary:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:     'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Font Sizes */
  --fs-xs:   0.75rem;   /* 12px */
  --fs-sm:   0.875rem;  /* 14px */
  --fs-base: 1rem;      /* 16px */
  --fs-md:   1.125rem;  /* 18px */
  --fs-lg:   1.25rem;   /* 20px */
  --fs-xl:   1.5rem;    /* 24px */
  --fs-2xl:  2rem;      /* 32px */
  --fs-3xl:  2.5rem;    /* 40px */
  --fs-4xl:  3.5rem;    /* 56px */
  --fs-5xl:  4.5rem;    /* 72px */

  /* Font Weights */
  --fw-light:     300;
  --fw-regular:   400;
  --fw-medium:    500;
  --fw-semibold:  600;
  --fw-bold:      700;
  --fw-extrabold: 800;
  --fw-black:     900;

  /* Line Heights */
  --lh-tight:  1.1;
  --lh-snug:   1.25;
  --lh-normal: 1.5;
  --lh-relaxed:1.75;

  /* Spacing */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  /* Border Radius */
  --radius-sm:   0.25rem;
  --radius-md:   0.5rem;
  --radius-lg:   1rem;
  --radius-xl:   1.5rem;
  --radius-2xl:  2rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.15);
  --shadow-lg:  0 10px 40px rgba(0,0,0,0.2);
  --shadow-xl:  0 20px 60px rgba(0,0,0,0.3);
  --shadow-glow-cyan:   0 0 30px rgba(0,217,255,0.3);
  --shadow-glow-orange: 0 0 30px rgba(255,107,53,0.4);
  --shadow-glow-purple: 0 0 30px rgba(123,44,191,0.3);
  --shadow-card: 0 4px 24px rgba(10,36,99,0.08);
  --shadow-card-hover: 0 12px 48px rgba(10,36,99,0.15);

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow:   500ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --container-max: 1280px;
  --container-wide: 1400px;
  --header-height: 80px;
  --section-padding: var(--sp-24) 0;

  /* Z-index */
  --z-below:   -1;
  --z-base:     0;
  --z-above:    1;
  --z-dropdown: 100;
  --z-sticky:   200;
  --z-header:   300;
  --z-modal:    400;
  --z-toast:    500;

  /* Light Mode Surface Colors */
  --surface-bg:       #ffffff;
  --surface-bg-2:     #F5F7FA;
  --surface-bg-3:     #EEF1F8;
  --surface-text:     #1A1D29;
  --surface-text-2:   #4a5568;
  --surface-text-3:   #8892a4;
  --surface-border:   #e2e8f0;
  --surface-card:     #ffffff;
  --surface-card-2:   #F5F7FA;
  --surface-nav:      rgba(255,255,255,0.95);
  --surface-hero-overlay: rgba(10,36,99,0.92);
}

/* ── Dark Mode ───────────────────────────────────────────── */
[data-theme="dark"] {
  --surface-bg:       #0d0f1a;
  --surface-bg-2:     #1A1D29;
  --surface-bg-3:     #242736;
  --surface-text:     #f0f4ff;
  --surface-text-2:   #b0bac8;
  --surface-text-3:   #6b7a99;
  --surface-border:   #2e3147;
  --surface-card:     #1A1D29;
  --surface-card-2:   #242736;
  --surface-nav:      rgba(13,15,26,0.97);
  --surface-hero-overlay: rgba(10,36,99,0.85);
  --shadow-card:      0 4px 24px rgba(0,0,0,0.3);
  --shadow-card-hover:0 12px 48px rgba(0,0,0,0.5);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

/* ── Custom Cursor ───────────────────────────────────────── */
/* Hide default cursor on non-touch devices */
@media (hover: hover) and (pointer: fine) {
  *, *::before, *::after {
    cursor: none !important;
  }
}

/* Outer ring cursor */
.cursor-ring {
  position: fixed;
  top: 0; left: 0;
  width: 36px;
  height: 36px;
  border: 2px solid #00D9FF;
  border-radius: 50%;
  pointer-events: none;
  z-index: 999999;
  transform: translate(-50%, -50%);
  transition: width 0.25s ease, height 0.25s ease,
              border-color 0.2s ease, opacity 0.3s ease,
              background 0.2s ease;
  will-change: transform;
  mix-blend-mode: normal;
  opacity: 0;
}

/* Inner dot cursor */
.cursor-dot {
  position: fixed;
  top: 0; left: 0;
  width: 8px;
  height: 8px;
  background: #00D9FF;
  border-radius: 50%;
  pointer-events: none;
  z-index: 999999;
  transform: translate(-50%, -50%);
  transition: width 0.15s ease, height 0.15s ease,
              background 0.15s ease, opacity 0.3s ease;
  will-change: transform;
  opacity: 0;
}

/* Hover state - ring expands, fills slightly */
.cursor-ring.hovering {
  width: 50px;
  height: 50px;
  border-color: rgba(0, 217, 255, 0.6);
  background: rgba(0, 217, 255, 0.08);
}

/* Click state */
.cursor-ring.clicking {
  width: 28px;
  height: 28px;
  border-color: #fff;
  background: rgba(0, 217, 255, 0.2);
}
.cursor-dot.clicking {
  width: 12px;
  height: 12px;
  background: #fff;
}

/* Dark mode cursor adjustments */
[data-theme="light"] .cursor-ring {
  border-color: var(--color-primary);
}
[data-theme="light"] .cursor-dot {
  background: var(--color-primary);
}
[data-theme="light"] .cursor-ring.hovering {
  border-color: rgba(10, 36, 99, 0.5);
  background: rgba(10, 36, 99, 0.06);
}

/* On text inputs – show text cursor */
input, textarea, [contenteditable] {
  cursor: text !important;
}

body {
  font-family: var(--font-primary);
  font-size: var(--fs-md);
  font-weight: var(--fw-regular);
  line-height: var(--lh-relaxed);
  color: var(--surface-text);
  background-color: var(--surface-bg);
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

input, textarea, select {
  font-family: inherit;
}

/* ── Typography ──────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  color: var(--surface-text);
}

h1 { font-size: clamp(2.5rem, 5vw, var(--fs-5xl)); font-weight: var(--fw-extrabold); }
h2 { font-size: clamp(1.75rem, 3.5vw, var(--fs-4xl)); font-weight: var(--fw-bold); }
h3 { font-size: clamp(1.5rem, 2.5vw, var(--fs-3xl)); }
h4 { font-size: var(--fs-2xl); }
h5 { font-size: var(--fs-xl); }
h6 { font-size: var(--fs-lg); }

p { color: var(--surface-text-2); line-height: var(--lh-relaxed); }

.text-gradient {
  background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-primary-light) 50%, var(--color-purple-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gradient-orange {
  background: var(--grad-orange);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gradient-green {
  background: var(--grad-green);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-cyan   { color: var(--color-cyan); }
.text-orange { color: var(--color-orange); }
.text-green  { color: var(--color-green); }
.text-purple { color: var(--color-purple-light); }
.text-gray   { color: var(--surface-text-2); }
.text-muted  { color: var(--surface-text-3); }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: var(--sp-4);
}
.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-cyan);
  border-radius: var(--radius-full);
}

.section-title {
  margin-bottom: var(--sp-4);
}

.section-desc {
  font-size: var(--fs-md);
  color: var(--surface-text-2);
  max-width: 640px;
  line-height: var(--lh-relaxed);
}

/* ── Layout ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.section {
  padding: var(--sp-24) 0;
}
.section-sm {
  padding: var(--sp-16) 0;
}
.section-lg {
  padding: var(--sp-32) 0;
}

.section-header {
  margin-bottom: var(--sp-16);
}
.section-header-centered {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Grid helpers */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-8); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--sp-8); }
.grid-auto-sm { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--sp-6); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }
.gap-4 { gap: var(--sp-4); }
.gap-6 { gap: var(--sp-6); }
.gap-8 { gap: var(--sp-8); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  line-height: 1;
  white-space: nowrap;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  background: rgba(255,255,255,0.15);
  transition: opacity var(--transition-fast);
}

.btn:hover::before { opacity: 1; }

.btn-primary {
  background: var(--grad-orange);
  color: #fff;
  box-shadow: var(--shadow-glow-orange);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,107,53,0.5);
}

.btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.5);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  background: rgba(0,217,255,0.08);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}
[data-theme="dark"] .btn-outline {
  color: var(--color-cyan);
  border-color: var(--color-cyan);
}
[data-theme="dark"] .btn-outline:hover {
  background: var(--color-cyan);
  color: var(--color-dark);
}

.btn-ghost {
  background: transparent;
  color: var(--surface-text);
  border: 2px solid var(--surface-border);
}
.btn-ghost:hover {
  background: var(--surface-bg-2);
  border-color: var(--color-cyan);
}

.btn-cyan {
  background: var(--color-cyan);
  color: var(--color-dark);
  font-weight: var(--fw-bold);
}
.btn-cyan:hover {
  background: var(--color-cyan-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-cyan);
}

.btn-lg { padding: 1rem 2.25rem; font-size: var(--fs-md); }
.btn-sm { padding: 0.5rem 1.25rem; font-size: var(--fs-sm); }
.btn-icon { gap: var(--sp-3); }
.btn-icon i { font-size: 1.1em; }

/* Pulsing CTA button */
.btn-pulse {
  animation: btnPulse 2.5s ease-in-out infinite;
}
@keyframes btnPulse {
  0%, 100% { box-shadow: var(--shadow-glow-orange); }
  50% { box-shadow: 0 0 0 12px rgba(255,107,53,0); }
}

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-card);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(0,217,255,0.3);
}

.card-glass {
  background: var(--grad-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
}

.card-dark {
  background: var(--color-dark-2);
  border: 1px solid var(--color-dark-3);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
}

/* ── Badge / Tag ─────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.badge-cyan    { background: rgba(0,217,255,0.15); color: var(--color-cyan); border: 1px solid rgba(0,217,255,0.3); }
.badge-orange  { background: rgba(255,107,53,0.15); color: var(--color-orange); border: 1px solid rgba(255,107,53,0.3); }
.badge-green   { background: rgba(0,230,118,0.15); color: var(--color-green); border: 1px solid rgba(0,230,118,0.3); }
.badge-purple  { background: rgba(199,125,255,0.15); color: var(--color-purple-light); border: 1px solid rgba(199,125,255,0.3); }
.badge-primary { background: rgba(10,36,99,0.15); color: var(--color-primary-light); border: 1px solid rgba(10,36,99,0.3); }
[data-theme="dark"] .badge-primary { background: rgba(26,61,159,0.2); color: #90a8ff; border-color: rgba(26,61,159,0.4); }

/* ── Form Elements ───────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.form-label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--surface-text);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.875rem 1.25rem;
  background: var(--surface-bg-2);
  border: 2px solid var(--surface-border);
  border-radius: var(--radius-lg);
  font-size: var(--fs-base);
  color: var(--surface-text);
  transition: all var(--transition-fast);
  outline: none;
  appearance: none;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--color-cyan);
  background: var(--surface-bg);
  box-shadow: 0 0 0 4px rgba(0,217,255,0.1);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: var(--surface-text-3);
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

/* ── Dividers ────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--surface-border);
  margin: var(--sp-8) 0;
}

.divider-gradient {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-cyan), transparent);
  margin: var(--sp-8) 0;
}

/* ── Icon Boxes ──────────────────────────────────────────── */
.icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.icon-box-lg {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-xl);
  font-size: 2rem;
}
.icon-box-cyan    { background: rgba(0,217,255,0.12); color: var(--color-cyan); }
.icon-box-orange  { background: rgba(255,107,53,0.12); color: var(--color-orange); }
.icon-box-green   { background: rgba(0,230,118,0.12); color: var(--color-green); }
.icon-box-purple  { background: rgba(199,125,255,0.12); color: var(--color-purple-light); }
.icon-box-primary { background: rgba(10,36,99,0.12); color: var(--color-primary-light); }
[data-theme="dark"] .icon-box-primary { background: rgba(26,61,159,0.2); color: #90a8ff; }

/* ── Animations ──────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes floatAlt {
  0%, 100% { transform: translateY(-8px) rotate(2deg); }
  50% { transform: translateY(8px) rotate(-2deg); }
}
@keyframes rotateSlowly {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}
@keyframes particleDrift {
  0%   { transform: translateY(0) translateX(0) scale(1); opacity: 0.6; }
  50%  { transform: translateY(-20px) translateX(10px) scale(1.1); opacity: 1; }
  100% { transform: translateY(0) translateX(0) scale(1); opacity: 0.6; }
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes ripple {
  0%   { transform: scale(0); opacity: 0.6; }
  100% { transform: scale(4); opacity: 0; }
}
@keyframes counterUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideInNav {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.animate-fadeInUp    { animation: fadeInUp 0.7s ease forwards; }
.animate-fadeInDown  { animation: fadeInDown 0.6s ease forwards; }
.animate-fadeInLeft  { animation: fadeInLeft 0.7s ease forwards; }
.animate-fadeInRight { animation: fadeInRight 0.7s ease forwards; }
.animate-scaleIn     { animation: scaleIn 0.5s ease forwards; }
.animate-float       { animation: float 4s ease-in-out infinite; }
.animate-floatAlt    { animation: floatAlt 5s ease-in-out infinite; }

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }

/* Intersection Observer — reveal classes */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}
.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; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ── Glassmorphism ───────────────────────────────────────── */
.glass {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xl);
}
[data-theme="dark"] .glass {
  background: rgba(26,29,41,0.7);
  border-color: rgba(255,255,255,0.08);
}

/* ── Stat Number ─────────────────────────────────────────── */
.stat-number {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-extrabold);
  line-height: 1;
  background: linear-gradient(135deg, #fff 0%, var(--color-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--surface-bg-2); }
::-webkit-scrollbar-thumb { background: var(--color-cyan); border-radius: 3px; }

/* ── Selection ───────────────────────────────────────────── */
::selection {
  background: rgba(0,217,255,0.3);
  color: var(--surface-text);
}

/* ── Utilities ───────────────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}
.w-full { width: 100%; }
.h-full { height: 100%; }
.overflow-hidden { overflow: hidden; }
.relative { position: relative; }
.absolute { position: absolute; }
.sticky { position: sticky; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline-flex { display: inline-flex; }
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-4 { margin-top: var(--sp-4); }
.mt-6 { margin-top: var(--sp-6); }
.mt-8 { margin-top: var(--sp-8); }
.mb-4 { margin-bottom: var(--sp-4); }
.mb-6 { margin-bottom: var(--sp-6); }
.mb-8 { margin-bottom: var(--sp-8); }
.mb-12 { margin-bottom: var(--sp-12); }
.pt-0 { padding-top: 0 !important; }
.pb-0 { padding-bottom: 0 !important; }
.rounded-full { border-radius: var(--radius-full); }
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.cursor-pointer { cursor: pointer; }
.no-select { user-select: none; }
.bg-primary { background: var(--grad-primary); }
.bg-dark { background: var(--color-dark); }
.bg-surface-2 { background: var(--surface-bg-2); }

/* ── Marquee ─────────────────────────────────────────────── */
.marquee-wrapper {
  overflow: hidden;
  position: relative;
}
.marquee-wrapper::before,
.marquee-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 120px;
  z-index: 2;
}
.marquee-wrapper::before { left: 0; background: linear-gradient(90deg, var(--surface-bg), transparent); }
.marquee-wrapper::after  { right: 0; background: linear-gradient(-90deg, var(--surface-bg), transparent); }

.marquee-track {
  display: flex;
  gap: var(--sp-8);
  animation: marqueeScroll 30s linear infinite;
  width: max-content;
}
.marquee-track:hover { animation-play-state: paused; }

@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── Progress Bar ────────────────────────────────────────── */
.progress-bar {
  height: 6px;
  background: var(--surface-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-purple-light));
  border-radius: var(--radius-full);
  transition: width 1.5s ease;
  width: 0;
}

/* ── Tab System ──────────────────────────────────────────── */
.tab-nav {
  display: flex;
  gap: var(--sp-2);
  background: var(--surface-bg-2);
  padding: var(--sp-2);
  border-radius: var(--radius-full);
  width: fit-content;
}
.tab-btn {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--surface-text-2);
  transition: all var(--transition-fast);
  cursor: pointer;
}
.tab-btn.active {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}
[data-theme="dark"] .tab-btn.active {
  background: var(--color-cyan);
  color: var(--color-dark);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeInUp 0.4s ease; }

/* ── Accordion ───────────────────────────────────────────── */
.accordion-item {
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--sp-3);
  transition: border-color var(--transition-fast);
}
.accordion-item.open { border-color: var(--color-cyan); }

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) var(--sp-6);
  cursor: pointer;
  font-weight: var(--fw-semibold);
  color: var(--surface-text);
  background: var(--surface-card);
  transition: background var(--transition-fast);
  gap: var(--sp-4);
}
.accordion-header:hover { background: var(--surface-bg-2); }

.accordion-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: var(--surface-bg-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  transition: transform var(--transition-normal), background var(--transition-fast);
}
.accordion-item.open .accordion-icon {
  transform: rotate(45deg);
  background: var(--color-cyan);
  color: var(--color-dark);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: var(--surface-bg-2);
}
.accordion-item.open .accordion-body { max-height: 800px; }

.accordion-content {
  padding: var(--sp-5) var(--sp-6);
  color: var(--surface-text-2);
  line-height: var(--lh-relaxed);
}

/* ── Modal ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-6);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}
.modal-box {
  background: var(--surface-card);
  border-radius: var(--radius-2xl);
  padding: var(--sp-10);
  max-width: 640px;
  width: 100%;
  position: relative;
  transform: scale(0.95) translateY(20px);
  transition: transform var(--transition-spring);
  box-shadow: var(--shadow-xl);
}
.modal-overlay.open .modal-box {
  transform: scale(1) translateY(0);
}
.modal-close {
  position: absolute;
  top: var(--sp-5);
  right: var(--sp-5);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--surface-bg-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--surface-text-2);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.modal-close:hover {
  background: var(--color-error);
  color: #fff;
}

/* ── Toast ───────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: var(--sp-6);
  right: var(--sp-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.toast {
  padding: var(--sp-4) var(--sp-6);
  border-radius: var(--radius-lg);
  background: var(--surface-card);
  border: 1px solid var(--surface-border);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  max-width: 360px;
  animation: fadeInRight 0.4s ease;
  color: var(--surface-text);
}
.toast-success { border-left: 4px solid var(--color-success); }
.toast-error   { border-left: 4px solid var(--color-error); }
.toast-info    { border-left: 4px solid var(--color-info); }
.toast-warning { border-left: 4px solid var(--color-warning); }

/* ── Pagination ──────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  justify-content: center;
  margin-top: var(--sp-12);
}
.page-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border: 1px solid var(--surface-border);
  background: var(--surface-card);
  color: var(--surface-text-2);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.page-btn:hover, .page-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
[data-theme="dark"] .page-btn:hover, [data-theme="dark"] .page-btn.active {
  background: var(--color-cyan);
  color: var(--color-dark);
  border-color: var(--color-cyan);
}

/* ── Filter Tags ─────────────────────────────────────────── */
.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-bottom: var(--sp-8);
}
.filter-tag {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  border: 1px solid var(--surface-border);
  background: var(--surface-card);
  color: var(--surface-text-2);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.filter-tag:hover, .filter-tag.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
[data-theme="dark"] .filter-tag:hover, [data-theme="dark"] .filter-tag.active {
  background: var(--color-cyan);
  color: var(--color-dark);
  border-color: var(--color-cyan);
}

/* ── Star Rating ─────────────────────────────────────────── */
.stars {
  display: flex;
  gap: 3px;
  color: #FFD700;
  font-size: 1rem;
}

/* ── Page Hero Shared ─────────────────────────────────────── */
.page-hero {
  background: var(--grad-hero);
  background-size: 300% 300%;
  animation: gradientShift 12s ease infinite;
  padding: calc(var(--header-height) + var(--sp-16)) 0 var(--sp-20);
  position: relative;
  overflow: hidden;
  color: #fff;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-mesh);
  opacity: 0.6;
}
.page-hero-content { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; margin-bottom: var(--sp-6); }
.page-hero p  { color: rgba(255,255,255,0.85); font-size: var(--fs-md); max-width: 640px; }

/* ── WhatsApp Floating Button ────────────────────────────── */
.wa-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: var(--z-sticky);
  width: 58px;
  height: 58px;
  border-radius: var(--radius-full);
  background: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: #fff;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: all var(--transition-normal);
  animation: float 3s ease-in-out infinite;
}
.wa-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(37,211,102,0.6);
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .section { padding: var(--sp-20) 0; }
}

@media (max-width: 768px) {
  .container { padding: 0 var(--sp-5); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: var(--sp-16) 0; }
  .section-lg { padding: var(--sp-20) 0; }
  h1 { font-size: clamp(2rem, 7vw, 3rem); }
  h2 { font-size: clamp(1.5rem, 5vw, 2.5rem); }
  .btn-lg { padding: 0.875rem 1.75rem; font-size: var(--fs-base); }
  .hide-mobile { display: none; }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--sp-4); }
  .card { padding: var(--sp-6); }
  .wa-float { bottom: 20px; right: 20px; width: 50px; height: 50px; font-size: 1.4rem; }
}

/* ── Background Geometric Elements ──────────────────────── */
.geo-bg {
  position: absolute;
  pointer-events: none;
  z-index: 0;
}
.geo-circle {
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,217,255,0.06), transparent 70%);
}
.geo-blob {
  border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  animation: floatAlt 8s ease-in-out infinite;
}

/* ── Code font ───────────────────────────────────────────── */
code, pre, .code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--surface-bg-2);
  border-radius: var(--radius-sm);
  padding: 0.2em 0.4em;
  color: var(--color-cyan);
}