/* ═══════════════════════════════════════════════════════════════════════
   NordDelta Academy — Design System & Core Styles
   Nordic Precision · Green Energy · Future Technology
   ═══════════════════════════════════════════════════════════════════════ */

/* ── DESIGN TOKENS ─────────────────────────────────────────────────── */
:root {
  /* Palette */
  --clr-bg:          #0B1220;
  --clr-surface:     #141E2E;
  --clr-surface-2:   #1C2A3A;
  --clr-border:      rgba(255,255,255,0.06);
  --clr-border-hi:   rgba(255,255,255,0.12);

  --clr-accent:      #00C7A3;
  --clr-accent-dark: #009E83;
  --clr-accent-glow: rgba(0,199,163,0.25);
  --clr-blue:        #4A9EFF;
  --clr-blue-glow:   rgba(74,158,255,0.2);
  --clr-solar:       #F5A623;
  --clr-solar-glow:  rgba(245,166,35,0.2);
  --clr-drone:       #C97DFF;
  --clr-drone-glow:  rgba(201,125,255,0.2);

  --clr-text:        #F0F5FA;
  --clr-text-muted:  #8EA3B8;
  --clr-text-dim:    #4A5568;

  /* Typography */
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:  'JetBrains Mono', 'Courier New', monospace;

  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;
  --text-7xl:  4.5rem;

  --weight-normal:    400;
  --weight-medium:    500;
  --weight-semibold:  600;
  --weight-bold:      700;
  --weight-extrabold: 800;
  --weight-black:     900;

  --leading-tight:  1.15;
  --leading-snug:   1.35;
  --leading-normal: 1.6;
  --leading-loose:  1.8;

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

  /* Radius */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.5);
  --shadow-xl:  0 20px 60px rgba(0,0,0,0.6);
  --glow-accent: 0 0 40px rgba(0,199,163,0.3);
  --glow-blue:   0 0 40px rgba(74,158,255,0.3);

  /* Transitions */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:    cubic-bezier(0.4, 0, 1, 1);
  --ease-inout: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast:   150ms;
  --dur-base:   250ms;
  --dur-slow:   400ms;
  --dur-xslow:  700ms;

  /* Layout */
  --max-width: 1280px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-normal);
  color: var(--clr-text);
  background: var(--clr-bg);
  overflow-x: hidden;
  cursor: none;
}

img, video, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: none; }

::selection {
  background: var(--clr-accent);
  color: var(--clr-bg);
}

/* ── SCROLLBAR ──────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb { background: var(--clr-surface-2); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-accent); }

/* ── TYPOGRAPHY UTILITIES ───────────────────────────────────────────── */
.text-accent  { color: var(--clr-accent); }
.text-blue    { color: var(--clr-blue); }
.text-solar   { color: var(--clr-solar); }
.text-drone   { color: var(--clr-drone); }
.text-muted   { color: var(--clr-text-muted); }

/* ── CUSTOM CURSOR ──────────────────────────────────────────────────── */
.cursor-dot {
  position: fixed;
  width: 6px;
  height: 6px;
  background: var(--clr-accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.2s;
  mix-blend-mode: difference;
}

.cursor-ring {
  position: fixed;
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(0,199,163,0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease-out),
              height 0.3s var(--ease-out),
              border-color 0.3s,
              background 0.3s;
}

.cursor-ring.cursor-hover {
  width: 56px;
  height: 56px;
  border-color: var(--clr-accent);
  background: var(--clr-accent-glow);
}

.cursor-ring.cursor-click {
  width: 24px;
  height: 24px;
  background: var(--clr-accent-glow);
}

/* ── BUTTONS ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.01em;
  cursor: none;
  transition: all var(--dur-base) var(--ease-out);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.06);
  opacity: 0;
  transition: opacity var(--dur-fast);
}
.btn:hover::before { opacity: 1; }

.btn--primary {
  background: var(--clr-accent);
  color: var(--clr-bg);
}
.btn--primary:hover {
  background: var(--clr-accent-dark);
  box-shadow: var(--glow-accent);
  transform: translateY(-1px);
}
.btn--primary:active { transform: translateY(0); }

.btn--outline {
  background: transparent;
  color: var(--clr-text);
  border: 1.5px solid var(--clr-border-hi);
}
.btn--outline:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-1px);
}

.btn--ghost {
  background: rgba(255,255,255,0.04);
  color: var(--clr-text-muted);
  border: 1px solid var(--clr-border);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.08);
  color: var(--clr-text);
  transform: translateY(-1px);
}

.btn--sm  { padding: 0.5rem 1rem; font-size: var(--text-xs); }
.btn--lg  { padding: 0.875rem 2rem; font-size: var(--text-base); }
.btn--full { width: 100%; justify-content: center; }

/* Magnetic button effect (JS-enhanced) */
.magnetic {
  will-change: transform;
}

/* ── SECTION COMMON ─────────────────────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: var(--weight-extrabold);
  line-height: var(--leading-tight);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-5);
}

.section-sub {
  font-size: var(--text-lg);
  color: var(--clr-text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: var(--leading-loose);
}

/* ── NAV ────────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: background var(--dur-base), box-shadow var(--dur-base);
}

.nav.scrolled {
  background: rgba(11,18,32,0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--clr-border);
}

.nav__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.nav__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav__logo-name {
  font-size: var(--text-base);
  font-weight: var(--weight-bold);
  letter-spacing: 0.01em;
}

.nav__logo-sub {
  font-size: 9px;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.18em;
  color: var(--clr-accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
}

.nav__item {
  position: relative;
}

.nav__link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--clr-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast), background var(--dur-fast);
}

.nav__link:hover,
.nav__item--has-dropdown:hover .nav__link {
  color: var(--clr-text);
  background: rgba(255,255,255,0.04);
}

/* Dropdown */
.nav__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 520px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-hi);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(20px);
}

.nav__item--has-dropdown:hover .nav__dropdown {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.nav__dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  transition: background var(--dur-fast);
}
.nav__dropdown-item:hover { background: rgba(255,255,255,0.04); }

.nav__dropdown-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(var(--c),0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  border: 1px solid rgba(255,255,255,0.06);
}

.nav__dropdown-item strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  margin-bottom: 2px;
}

.nav__dropdown-item span {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
}

.nav__dropdown-footer {
  border-top: 1px solid var(--clr-border);
  padding-top: var(--space-4);
  text-align: center;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: var(--space-4);
  flex-shrink: 0;
}

/* Mobile hamburger */
.nav__menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}
.nav__menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 1px;
  transition: transform var(--dur-base), opacity var(--dur-base);
}
.nav__menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__menu-toggle.active span:nth-child(2) { opacity: 0; }
.nav__menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav overlay */
.nav__mobile {
  display: none;
  position: fixed;
  inset: var(--nav-height) 0 0 0;
  background: rgba(11,18,32,0.97);
  backdrop-filter: blur(20px);
  padding: var(--space-8) var(--space-6);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base);
  overflow-y: auto;
}

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

.nav__mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}

.nav__mobile-links a {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  transition: color var(--dur-fast);
}
.nav__mobile-links a:hover { color: var(--clr-text); }

.nav__mobile-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.nav__mobile-actions .btn { justify-content: center; }

/* ── HERO ───────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 70%);
}

.hero__gradient {
  position: absolute;
  pointer-events: none;
  z-index: 2;
}
.hero__gradient--bottom {
  bottom: 0; left: 0; right: 0; height: 40%;
  background: linear-gradient(to top, var(--clr-bg), transparent);
}
.hero__gradient--left {
  top: 0; left: 0; bottom: 0; width: 30%;
  background: linear-gradient(to right, var(--clr-bg), transparent);
}

.hero__content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 900px;
  padding: 0 var(--space-6);
}

.hero__eyebrow {
  margin-bottom: var(--space-6);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.06em;
  color: var(--clr-text-muted);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border-hi);
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.hero__badge-dot {
  animation: pulse 2s ease-in-out infinite;
}

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

.hero__headline {
  font-size: clamp(var(--text-4xl), 8vw, var(--text-7xl));
  font-weight: var(--weight-black);
  line-height: var(--leading-tight);
  letter-spacing: -0.04em;
  margin-bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero__headline-line {
  display: block;
  overflow: hidden;
}

.hero__headline-line--accent {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  font-size: clamp(var(--text-base), 2.5vw, var(--text-xl));
  color: var(--clr-text-muted);
  line-height: var(--leading-loose);
  margin-bottom: var(--space-10);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-bottom: var(--space-10);
}

.hero__social-proof {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.hero__avatars {
  display: flex;
}

.hero__avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--clr-surface-2);
  border: 2px solid var(--clr-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  color: var(--clr-accent);
  margin-left: -8px;
}
.hero__avatar:first-child { margin-left: 0; }
.hero__avatar--more {
  font-size: 9px;
  background: var(--clr-surface);
  color: var(--clr-text-muted);
  width: auto;
  padding: 0 8px;
  border-radius: var(--radius-full);
}

.hero__social-text {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
}
.hero__social-text strong { color: var(--clr-text); }

/* Floating cards */
.hero__float {
  position: absolute;
  z-index: 10;
  animation: floatY 4s ease-in-out infinite;
}
.hero__float--tl { top: 22%; left: 4%; animation-delay: 0s; }
.hero__float--tr { top: 18%; right: 4%; animation-delay: 1.5s; }
.hero__float--br { bottom: 22%; right: 5%; animation-delay: 0.8s; }

@keyframes floatY {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}

.float-card {
  background: rgba(20,30,46,0.7);
  backdrop-filter: blur(16px);
  border: 1px solid var(--clr-border-hi);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 180px;
  box-shadow: var(--shadow-lg);
}

.float-card__icon { font-size: 24px; }

.float-card__text strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  margin-bottom: 2px;
}

.float-card__text span {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
}

.float-card__badge {
  font-size: 9px;
  font-weight: var(--weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(0,199,163,0.15);
  color: var(--clr-accent);
  border: 1px solid rgba(0,199,163,0.3);
  padding: 2px 7px;
  border-radius: var(--radius-full);
  animation: pulse 2s ease-in-out infinite;
}

.float-card__trend { width: 60px; height: 20px; }

.float-card__progress {
  height: 4px;
  background: var(--clr-surface-2);
  border-radius: 2px;
  width: 100%;
  overflow: hidden;
}

.float-card__progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-blue));
  border-radius: 2px;
  width: var(--p, 0%);
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, transparent, var(--clr-accent));
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

.hero__scroll span {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}

.hero__br-desktop { display: block; }

/* ── STATS SECTION ──────────────────────────────────────────────────── */
.stats {
  padding: var(--space-20) 0;
  position: relative;
}

.stats::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-accent), transparent);
  opacity: 0.4;
}

.stats__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-6);
}

.stat-item {
  text-align: center;
  padding: var(--space-6);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: border-color var(--dur-base), box-shadow var(--dur-base);
}

.stat-item:hover {
  border-color: var(--clr-accent);
  box-shadow: var(--glow-accent);
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-blue));
  transform: scaleX(0);
  transition: transform var(--dur-slow) var(--ease-out);
}
.stat-item.counted::before { transform: scaleX(1); }

.stat-item__value {
  font-size: var(--text-4xl);
  font-weight: var(--weight-black);
  color: var(--clr-accent);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-item__suffix { font-size: var(--text-2xl); }

.stat-item__label {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-4);
}

.stat-item__bar {
  height: 3px;
  background: var(--clr-surface-2);
  border-radius: 2px;
  overflow: hidden;
}

.stat-item__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-blue));
  border-radius: 2px;
  width: 0;
  transition: width 1.5s var(--ease-out);
}
.stat-item.counted .stat-item__fill { width: var(--p); }

/* ── DOMAINS SECTION ────────────────────────────────────────────────── */
.domains {
  padding: var(--space-32) 0;
  position: relative;
}

.domains__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.domains__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.domain-card {
  position: relative;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: transform var(--dur-slow) var(--ease-out),
              border-color var(--dur-base),
              box-shadow var(--dur-slow);
  cursor: none;
}

.domain-card:hover {
  transform: translateY(-6px);
  border-color: var(--clr-border-hi);
}

.domain-card--automation:hover { box-shadow: var(--glow-blue); border-color: var(--clr-blue); }
.domain-card--solar:hover      { box-shadow: 0 0 40px var(--clr-solar-glow); border-color: var(--clr-solar); }
.domain-card--drone:hover      { box-shadow: 0 0 40px var(--clr-drone-glow); border-color: var(--clr-drone); }
.domain-card--robotics:hover   { box-shadow: var(--glow-accent); border-color: var(--clr-accent); }
.domain-card--flagship:hover   { box-shadow: var(--glow-accent); border-color: var(--clr-accent); }

.domain-card--flagship {
  grid-column: span 3;
  background: linear-gradient(135deg, var(--clr-surface) 0%, rgba(0,199,163,0.06) 100%);
  border-color: rgba(0,199,163,0.2);
}

.domain-card__bg {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background: radial-gradient(circle at 70% 30%, var(--clr-accent) 0%, transparent 70%);
  transition: opacity var(--dur-slow);
}
.domain-card:hover .domain-card__bg { opacity: 0.08; }

.domain-card__glow {
  position: absolute;
  top: 0; right: 0;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,199,163,0.08) 0%, transparent 70%);
  transform: translate(50%, -50%);
  pointer-events: none;
}

.domain-card--automation .domain-card__glow { background: radial-gradient(circle, rgba(74,158,255,0.1) 0%, transparent 70%); }
.domain-card--solar      .domain-card__glow { background: radial-gradient(circle, rgba(245,166,35,0.1) 0%, transparent 70%); }
.domain-card--drone      .domain-card__glow { background: radial-gradient(circle, rgba(201,125,255,0.1) 0%, transparent 70%); }

.domain-card__content {
  position: relative;
  z-index: 2;
  padding: var(--space-8);
}

.domain-card--flagship .domain-card__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}

.domain-card__icon {
  width: 60px;
  height: 60px;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  transition: transform var(--dur-slow) var(--ease-spring);
}
.domain-card:hover .domain-card__icon { transform: scale(1.1) rotate(-5deg); }

.domain-card__track-badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c, var(--clr-accent));
  margin-bottom: var(--space-3);
}

.domain-card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
}

.domain-card__desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: var(--leading-loose);
  margin-bottom: var(--space-5);
}

.domain-card__courses {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.domain-card__courses li {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  padding-left: var(--space-4);
  position: relative;
}

.domain-card__courses li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--clr-accent);
  font-size: var(--text-xs);
}

.domain-card__meta {
  display: flex;
  gap: var(--space-5);
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  margin-bottom: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--clr-border);
}
.domain-card__meta strong { color: var(--clr-text); font-weight: var(--weight-semibold); }

.domain-card__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--clr-accent);
  transition: gap var(--dur-fast);
}
.domain-card__cta:hover { gap: var(--space-3); }

/* Flagship card extras */
.domain-card__flagship-badge {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--clr-solar);
  margin-bottom: var(--space-4);
}

.domain-card__flagship-includes {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}
.domain-card__flagship-includes span {
  font-size: var(--text-xs);
  background: rgba(0,199,163,0.08);
  border: 1px solid rgba(0,199,163,0.2);
  color: var(--clr-accent);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.domain-card__price {
  margin-bottom: var(--space-6);
}
.domain-card__price-value {
  font-size: var(--text-3xl);
  font-weight: var(--weight-black);
  color: var(--clr-accent);
  letter-spacing: -0.03em;
}
.domain-card__price-label {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
}

/* ── WHY SECTION ────────────────────────────────────────────────────── */
.why {
  padding: var(--space-32) 0;
  background: var(--clr-surface);
  position: relative;
}

.why::before,
.why::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-accent), var(--clr-blue), transparent);
  opacity: 0.3;
}
.why::before { top: 0; }
.why::after  { bottom: 0; }

.why__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.why__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.why-card {
  padding: var(--space-8);
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
  transition: border-color var(--dur-base), box-shadow var(--dur-slow);
}
.why-card:hover {
  border-color: var(--clr-border-hi);
  box-shadow: var(--shadow-lg);
}

.why-card--highlight {
  background: linear-gradient(135deg, var(--clr-bg) 0%, rgba(0,199,163,0.06) 100%);
  border-color: rgba(0,199,163,0.2);
}

.why-card__number {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--clr-accent);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.why-card__icon {
  font-size: 2rem;
  margin-bottom: var(--space-4);
}

.why-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.why-card__desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: var(--leading-loose);
  margin-bottom: var(--space-5);
}

.why-card__proof {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
}

.why-card__proof-badge {
  display: inline-block;
  background: rgba(0,199,163,0.1);
  color: var(--clr-accent);
  border: 1px solid rgba(0,199,163,0.2);
  font-size: 9px;
  font-weight: var(--weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-right: var(--space-2);
}

.why-card__instructor-preview {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}

.why-card__instructor-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--clr-bg);
  flex-shrink: 0;
}

.why-card__instructor-preview strong { display: block; font-size: var(--text-sm); margin-bottom: 2px; }
.why-card__instructor-preview span   { font-size: var(--text-xs); color: var(--clr-text-muted); }

.why-card__logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.why-card__logos span {
  font-size: var(--text-xs);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.why-card__skills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.why-card__skills span {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  background: rgba(74,158,255,0.08);
  border: 1px solid rgba(74,158,255,0.2);
  color: var(--clr-blue);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.why-card__certs {
  display: flex;
  gap: var(--space-3);
}

.cert-badge {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  background: rgba(0,199,163,0.1);
  border: 1px solid rgba(0,199,163,0.3);
  color: var(--clr-accent);
  padding: 5px 12px;
  border-radius: var(--radius-full);
}
.cert-badge--secondary {
  background: rgba(74,158,255,0.1);
  border-color: rgba(74,158,255,0.3);
  color: var(--clr-blue);
}

/* ── CORPORATE SECTION ──────────────────────────────────────────────── */
.corporate {
  padding: var(--space-32) 0;
}

.corporate__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-20);
  align-items: center;
}

.corporate__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin: var(--space-8) 0;
}

.corporate__feature {
  display: flex;
  gap: var(--space-4);
}

.corporate__feature-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.corporate__feature strong {
  display: block;
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-1);
}

.corporate__feature p {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
}

.corporate__packages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.package-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-4);
  text-align: center;
  position: relative;
  transition: border-color var(--dur-base), transform var(--dur-base);
}
.package-card:hover { border-color: var(--clr-border-hi); transform: translateY(-2px); }

.package-card--popular {
  border-color: var(--clr-accent);
  background: linear-gradient(135deg, var(--clr-surface) 0%, rgba(0,199,163,0.05) 100%);
}

.package-card__popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--clr-accent);
  color: var(--clr-bg);
  font-size: 9px;
  font-weight: var(--weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.package-card__name {
  font-size: var(--text-base);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-1);
}

.package-card__size {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  margin-bottom: var(--space-3);
}

.package-card__price {
  font-size: var(--text-xl);
  font-weight: var(--weight-black);
  color: var(--clr-accent);
  letter-spacing: -0.02em;
}
.package-card__price span {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  font-weight: var(--weight-normal);
}

.corporate__ctas {
  display: flex;
  gap: var(--space-3);
}

/* ROI Calculator */
.roi-calculator {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-hi);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-xl);
}

.roi-calculator__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.roi-calculator__header h3 {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
}

.roi-calculator__badge {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  background: rgba(0,199,163,0.1);
  color: var(--clr-accent);
  border: 1px solid rgba(0,199,163,0.2);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.roi-calculator__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.roi-field label {
  display: block;
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  margin-bottom: var(--space-3);
}

.roi-field__input-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.roi-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--clr-surface-2);
  border-radius: 2px;
  outline: none;
  cursor: none;
}
.roi-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--clr-accent);
  cursor: none;
  border: 3px solid var(--clr-bg);
  box-shadow: 0 0 0 2px var(--clr-accent);
  transition: box-shadow var(--dur-fast);
}
.roi-slider::-webkit-slider-thumb:hover {
  box-shadow: 0 0 0 4px var(--clr-accent-glow);
}

.roi-field__value {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--clr-accent);
  min-width: 80px;
  text-align: right;
}

.roi-results {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.roi-result {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4);
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
}

.roi-result--highlight { border-color: rgba(0,199,163,0.2); background: rgba(0,199,163,0.04); }

.roi-result--total {
  background: linear-gradient(135deg, rgba(0,199,163,0.1), rgba(74,158,255,0.05));
  border-color: rgba(0,199,163,0.3);
}

.roi-result__label { font-size: var(--text-sm); color: var(--clr-text-muted); }

.roi-result__value {
  font-size: var(--text-lg);
  font-weight: var(--weight-black);
  color: var(--clr-accent);
}

.roi-result--total .roi-result__value {
  font-size: var(--text-2xl);
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── UNIVERSITY SECTION ─────────────────────────────────────────────── */
.university {
  padding: var(--space-32) 0;
  background: var(--clr-surface);
  position: relative;
}

.university::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-blue), var(--clr-accent), transparent);
  opacity: 0.3;
}

.university__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.university__model {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.uni-step {
  flex: 1;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  transition: border-color var(--dur-base), box-shadow var(--dur-base);
}
.uni-step:hover {
  border-color: var(--clr-accent);
  box-shadow: var(--glow-accent);
}

.uni-step__num {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--clr-accent);
  margin-bottom: var(--space-3);
}

.uni-step h4 {
  font-size: var(--text-base);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-3);
}

.uni-step p {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: var(--leading-loose);
}

.uni-step__arrow {
  font-size: var(--text-xl);
  color: var(--clr-accent);
  flex-shrink: 0;
  margin-top: 40px;
  opacity: 0.5;
}

.university__cta-row {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
}

/* ── TESTIMONIALS ───────────────────────────────────────────────────── */
.testimonials {
  padding: var(--space-32) 0;
}

.testimonials__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.testimonials__swiper {
  padding-bottom: var(--space-12) !important;
}

.testimonial-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  height: auto;
  position: relative;
  overflow: hidden;
}

.testimonial-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-blue));
}

.testimonial-card__quote {
  font-size: 4rem;
  line-height: 1;
  color: var(--clr-accent);
  opacity: 0.2;
  margin-bottom: var(--space-4);
  font-family: serif;
}

.testimonial-card__text {
  font-size: var(--text-lg);
  color: var(--clr-text);
  line-height: var(--leading-loose);
  margin-bottom: var(--space-8);
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--weight-bold);
  color: var(--clr-bg);
  flex-shrink: 0;
}

.testimonial-card__author strong {
  display: block;
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
}

.testimonial-card__author span {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
}

.testimonial-card__stars {
  margin-left: auto;
  color: var(--clr-solar);
  font-size: var(--text-lg);
}

/* Swiper customisation */
.testimonials__pagination .swiper-pagination-bullet {
  background: var(--clr-surface-2);
  opacity: 1;
}
.testimonials__pagination .swiper-pagination-bullet-active {
  background: var(--clr-accent);
  width: 20px;
  border-radius: 10px;
}

.testimonials__prev,
.testimonials__next {
  color: var(--clr-accent) !important;
  width: 40px !important;
  height: 40px !important;
}
.testimonials__prev::after,
.testimonials__next::after { font-size: 16px !important; }

/* ── FINAL CTA ──────────────────────────────────────────────────────── */
.final-cta {
  padding: var(--space-32) 0;
  position: relative;
  overflow: hidden;
}

.final-cta__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

#ctaCanvas {
  width: 100%;
  height: 100%;
  opacity: 0.4;
}

.final-cta__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  position: relative;
  z-index: 2;
}

.final-cta__content { text-align: center; }

.final-cta__title {
  font-size: clamp(var(--text-3xl), 6vw, var(--text-6xl));
  font-weight: var(--weight-black);
  letter-spacing: -0.04em;
  line-height: var(--leading-tight);
  margin-bottom: var(--space-5);
}

.final-cta__sub {
  font-size: var(--text-lg);
  color: var(--clr-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-12);
  line-height: var(--leading-loose);
}

.final-cta__options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.cta-option {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  transition: border-color var(--dur-base), transform var(--dur-base);
}
.cta-option:hover { border-color: var(--clr-border-hi); transform: translateY(-4px); }

.cta-option--highlight {
  background: linear-gradient(135deg, var(--clr-surface) 0%, rgba(0,199,163,0.08) 100%);
  border-color: rgba(0,199,163,0.3);
}

.cta-option__icon { font-size: 2.5rem; margin-bottom: var(--space-4); }

.cta-option h3 {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-3);
}

.cta-option p {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: var(--leading-loose);
  margin-bottom: var(--space-6);
}

.final-cta__guarantee {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
}

/* ── FOOTER ─────────────────────────────────────────────────────────── */
.footer {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding: var(--space-20) 0 var(--space-8);
}

.footer__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 2fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--clr-border);
}

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: var(--leading-loose);
  margin: var(--space-4) 0 var(--space-6);
}

.footer__socials {
  display: flex;
  gap: var(--space-3);
}

.footer__social {
  width: 36px;
  height: 36px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
  transition: color var(--dur-fast), border-color var(--dur-fast), background var(--dur-fast);
}
.footer__social:hover {
  color: var(--clr-accent);
  border-color: var(--clr-accent);
  background: rgba(0,199,163,0.08);
}

.footer__nav-group h4 {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-5);
  color: var(--clr-text);
}

.footer__nav-group ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__nav-group a {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  transition: color var(--dur-fast);
}
.footer__nav-group a:hover { color: var(--clr-text); }

.footer__newsletter h4 {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-3);
}

.footer__newsletter p {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  margin-bottom: var(--space-4);
}

.footer__form-row {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.footer__form input {
  flex: 1;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 0.6rem var(--space-4);
  color: var(--clr-text);
  font-size: var(--text-sm);
  outline: none;
  transition: border-color var(--dur-fast);
}
.footer__form input:focus { border-color: var(--clr-accent); }
.footer__form input::placeholder { color: var(--clr-text-dim); }

.footer__form-note {
  font-size: var(--text-xs);
  color: var(--clr-text-dim);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
}

.footer__bottom a { transition: color var(--dur-fast); }
.footer__bottom a:hover { color: var(--clr-text); }

.footer__legal {
  display: flex;
  gap: var(--space-5);
}

/* ── AI CHAT WIDGET ─────────────────────────────────────────────────── */
.ai-chat {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  z-index: 900;
}

.ai-chat__trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--clr-accent);
  color: var(--clr-bg);
  border: none;
  border-radius: var(--radius-full);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  box-shadow: var(--glow-accent), var(--shadow-lg);
  transition: transform var(--dur-base) var(--ease-spring), box-shadow var(--dur-base);
}
.ai-chat__trigger:hover { transform: scale(1.05); box-shadow: 0 0 60px var(--clr-accent-glow); }

.ai-chat__panel {
  position: absolute;
  bottom: calc(100% + 12px);
  right: 0;
  width: 380px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-hi);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: translateY(16px);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--dur-slow) var(--ease-out), opacity var(--dur-slow);
}

.ai-chat__panel.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.ai-chat__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
}

.ai-chat__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  color: var(--clr-bg);
  flex-shrink: 0;
}

.ai-chat__header strong { display: block; font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.ai-chat__header span   { font-size: var(--text-xs); color: var(--clr-accent); }

.ai-chat__close {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--clr-text-muted);
  font-size: var(--text-lg);
  cursor: none;
  transition: color var(--dur-fast);
}
.ai-chat__close:hover { color: var(--clr-text); }

.ai-chat__messages {
  height: 280px;
  overflow-y: auto;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.ai-chat__message {
  max-width: 85%;
}

.ai-chat__message--bot {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
}

.ai-chat__message--bot ul {
  list-style: none;
  padding-left: var(--space-4);
  margin: var(--space-2) 0;
}
.ai-chat__message--bot li::before { content: '→ '; color: var(--clr-accent); }

.ai-chat__message--user {
  align-self: flex-end;
  background: var(--clr-accent);
  color: var(--clr-bg);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
}

.ai-chat__input-row {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-4);
  border-top: 1px solid var(--clr-border);
}

.ai-chat__input-row input {
  flex: 1;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-4);
  color: var(--clr-text);
  font-size: var(--text-sm);
  outline: none;
  transition: border-color var(--dur-fast);
}
.ai-chat__input-row input:focus { border-color: var(--clr-accent); }
.ai-chat__input-row input::placeholder { color: var(--clr-text-dim); }

/* ── BACK TO TOP ────────────────────────────────────────────────────── */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  left: var(--space-8);
  z-index: 900;
  width: 44px;
  height: 44px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-hi);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: all var(--dur-base) var(--ease-out);
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}
.back-to-top:hover { border-color: var(--clr-accent); color: var(--clr-accent); }

/* ── REVEAL ANIMATIONS (JS triggers .revealed class) ───────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}
[data-delay="100"] { transition-delay: 100ms; }
[data-delay="200"] { transition-delay: 200ms; }
[data-delay="300"] { transition-delay: 300ms; }
[data-delay="400"] { transition-delay: 400ms; }
[data-delay="500"] { transition-delay: 500ms; }

/* ── RESPONSIVE ─────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .stats__grid          { grid-template-columns: repeat(3, 1fr); }
  .domains__grid        { grid-template-columns: repeat(2, 1fr); }
  .domain-card--flagship { grid-column: span 2; }
  .why__grid            { grid-template-columns: repeat(2, 1fr); }
  .corporate__container { grid-template-columns: 1fr; gap: var(--space-12); }
  .footer__top          { grid-template-columns: 1fr 1fr 1fr; gap: var(--space-8); }
  .footer__brand        { grid-column: span 3; }
}

@media (max-width: 768px) {
  :root { --nav-height: 64px; }

  .nav__links, .nav__actions .btn:not(.btn--primary):not([href*="register"]) { display: none; }
  .nav__menu-toggle { display: flex; }
  .nav__mobile      { display: block; }

  .hero__float--tl, .hero__float--tr, .hero__float--br { display: none; }
  .hero__br-desktop { display: none; }

  .stats__grid   { grid-template-columns: repeat(2, 1fr); }
  .domains__grid { grid-template-columns: 1fr; }
  .domain-card--flagship { grid-column: span 1; }
  .domain-card--flagship .domain-card__content { grid-template-columns: 1fr; }
  .why__grid     { grid-template-columns: 1fr; }
  .university__model { flex-direction: column; }
  .uni-step__arrow   { display: none; }
  .corporate__packages { grid-template-columns: 1fr; }
  .final-cta__options  { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: span 2; }
  .footer__newsletter { grid-column: span 2; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .ai-chat__panel { width: calc(100vw - 2rem); right: -1rem; }
}

@media (max-width: 480px) {
  .stats__grid { grid-template-columns: 1fr; }
  .hero__ctas  { flex-direction: column; align-items: stretch; }
  .hero__ctas .btn { justify-content: center; }
  .university__cta-row { flex-direction: column; }
  .corporate__ctas { flex-direction: column; }
}

/* ── FOCUS STYLES (ACCESSIBILITY) ───────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ── PRINT ──────────────────────────────────────────────────────────── */
@media print {
  .nav, .ai-chat, .back-to-top, .hero__canvas, .hero__particles { display: none !important; }
  body { background: white; color: black; }
}