/* ============================================================
   ELITE ACADEMY KG — Design tokens & global styles
   Brand palette (brandbook): #064066 primary · #01182d–#074C7A gradient
   Fonts (brandbook): DM Sans (≈ Clear Sans) · Raleway (≈ Avenir Next Cyr)
   ============================================================ */

:root {
  /* ---- Brand: dark blue family (brandbook exact) ---- */
  --navy:        #064066;   /* primary brand color — brandbook #064066 */
  --navy-2:      #074C7A;   /* gradient end — brandbook #074C7A */
  --navy-3:      #0D6A9F;   /* hover / lighter accent */
  --navy-deep:   #01182d;   /* gradient start / darkest — brandbook #01182d */

  --blue:        #1A5E90;   /* action blue */
  --blue-2:      #4A8FC7;   /* lighter action */

  --accent:      #7BB5DC;   /* light highlight blue */
  --accent-2:    #B8D8EC;   /* even lighter for gradients */
  --accent-soft: #E1EEF7;   /* very light wash */

  /* ---- Neutrals: white + gray scale ---- */
  --white:       #FFFFFF;
  --gray-50:     #F8FAFC;
  --gray-100:    #F1F5F9;   /* main light bg */
  --gray-200:    #E2E8F0;
  --gray-300:    #CBD5E1;
  --gray-400:    #94A3B8;
  --gray-500:    #64748B;
  --gray-600:    #475569;
  --gray-700:    #334155;
  --gray-800:    #1E293B;

  --text:        #1E293B;
  --muted:       #64748B;
  --light-bg:    #F1F5F9;
  --line:        rgba(6, 64, 102, 0.10);

  /* ---- Glass layer ---- */
  --glass:        rgba(255,255,255,0.08);
  --glass-strong: rgba(255,255,255,0.14);
  --glass-line:   rgba(255,255,255,0.18);

  /* ---- Typography (brandbook: Clear Sans → DM Sans, Avenir Next Cyr → Raleway) ---- */
  --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-head: 'Raleway', 'DM Sans', system-ui, sans-serif;

  /* ---- Radii ---- */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  /* ---- Shadows (all blue-tinted, no warm tones) ---- */
  --shadow-sm:   0 2px 8px rgba(6,64,102,0.06);
  --shadow-md:   0 14px 40px -12px rgba(6,64,102,0.18);
  --shadow-lg:   0 30px 70px -20px rgba(6,64,102,0.32);
  --shadow-blue: 0 14px 36px -10px rgba(26,94,144,0.5);

  /* ---- Layout ---- */
  --maxw: 1240px;
  --nav-h: 64px;

  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1,h2,h3,h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; line-height: 1.6; text-wrap: pretty; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
img { display: block; max-width: 100%; }
ul { margin: 0; padding: 0; list-style: none; }

/* ---------- Layout helpers ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.section { padding: 104px 0; position: relative; }
.section--tight { padding: 72px 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-head); font-weight: 700;
  font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--blue);
}
.eyebrow--gold { color: var(--accent); }
.eyebrow--light { color: var(--accent-2); }

.section-head { max-width: 760px; margin-bottom: 52px; }
.section-head h2 {
  font-size: clamp(32px, 4.4vw, 54px);
  margin-top: 14px;
}
.section-head p { margin-top: 18px; font-size: 19px; color: var(--muted); }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-head); font-weight: 700; font-size: 16px;
  padding: 15px 26px; border-radius: var(--r-md);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease),
              background .25s var(--ease), color .2s, border-color .25s var(--ease);
  white-space: nowrap; line-height: 1;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

/* Primary action: solid navy with subtle gradient */
.btn--gold {
  background: linear-gradient(135deg, var(--navy-3), var(--navy));
  color: #fff;
  box-shadow: var(--shadow-blue);
  position: relative;
  overflow: hidden;
}
.btn--gold::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.18), transparent);
  transform: translateX(-100%);
  transition: transform .8s var(--ease);
}
.btn--gold:hover::before { transform: translateX(100%); }
.btn--gold:hover { box-shadow: 0 18px 44px -8px rgba(26,94,144,.6); }

.btn--blue { background: var(--blue); color: #fff; box-shadow: 0 12px 30px -10px rgba(26,94,144,.55); }
.btn--blue:hover { background: var(--blue-2); }

.btn--dark { background: var(--navy); color: #fff; }
.btn--dark:hover { background: var(--navy-2); }

.btn--ghost-light {
  background: rgba(255,255,255,0.08); color: #fff;
  border: 1.5px solid var(--glass-line); backdrop-filter: blur(8px);
}
.btn--ghost-light:hover { background: rgba(255,255,255,0.16); }

.btn--ghost {
  background: transparent; color: var(--navy);
  border: 1.5px solid var(--line);
}
.btn--ghost:hover { border-color: var(--navy); background: var(--gray-50); }

.btn--lg { padding: 18px 32px; font-size: 17px; }
.btn--block { width: 100%; }

/* pulse for primary nav CTA */
@keyframes pulse-blue {
  0%,100% { box-shadow: 0 0 0 0 rgba(6,64,102,0.45); }
  50%     { box-shadow: 0 0 0 12px rgba(6,64,102,0); }
}
.pulse { animation: pulse-blue 2.6s var(--ease) infinite; }

/* ---------- Cards ---------- */
.glass {
  background: var(--glass);
  border: 1px solid var(--glass-line);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--r-lg);
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.card--lift:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(6,64,102,0.16); }

.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 13px; border-radius: 999px;
  font-size: 13px; font-weight: 600; font-family: var(--font-head);
  background: var(--light-bg); color: var(--navy);
  border: 1px solid var(--line);
}
.tag-gold  { background: var(--accent-soft); color: var(--navy);   border-color: rgba(123,181,220,.4); }
.tag-blue  { background: rgba(26,94,144,.10); color: var(--blue);   border-color: rgba(26,94,144,.2); }
.tag-green { background: var(--gray-100);    color: var(--navy-3); border-color: var(--line); }

/* ---------- Image placeholder ---------- */
.ph {
  position: relative; overflow: hidden;
  background:
    repeating-linear-gradient(135deg, rgba(6,64,102,.04) 0 10px, rgba(6,64,102,.015) 10px 20px),
    var(--light-bg);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
}
.ph::after {
  content: attr(data-label);
  font-family: ui-monospace, 'Courier New', monospace;
  font-size: 11px; letter-spacing: .06em; text-transform: uppercase;
  opacity: .75; padding: 6px 10px; text-align: center;
}
.ph--dark {
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,.06) 0 10px, rgba(255,255,255,.02) 10px 20px),
    var(--navy-2);
  color: rgba(255,255,255,.6);
}

/* ---------- Grain overlay ---------- */
.grain::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 1;
  opacity: .4; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Reveal on scroll ---------- */
[data-reveal] {
  opacity: 0; transform: translateY(28px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: .08s; }
[data-reveal][data-delay="2"] { transition-delay: .16s; }
[data-reveal][data-delay="3"] { transition-delay: .24s; }
[data-reveal][data-delay="4"] { transition-delay: .32s; }
[data-reveal][data-delay="5"] { transition-delay: .40s; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .pulse { animation: none; }
  html { scroll-behavior: auto; }
  .stagger > * { opacity: 1 !important; animation: none !important; }
}

/* ---------- Stagger mount ---------- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }
.stagger > * { opacity: 0; animation: fadeUp .55s var(--ease) forwards; }
.stagger > *:nth-child(1) { animation-delay: .04s; }
.stagger > *:nth-child(2) { animation-delay: .10s; }
.stagger > *:nth-child(3) { animation-delay: .16s; }
.stagger > *:nth-child(4) { animation-delay: .22s; }
.stagger > *:nth-child(5) { animation-delay: .28s; }
.stagger > *:nth-child(6) { animation-delay: .34s; }
.stagger > *:nth-child(7) { animation-delay: .40s; }
.stagger > *:nth-child(8) { animation-delay: .46s; }

/* ---------- Dark section base ---------- */
.dark { background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 100%); color: #fff; }
.dark h2, .dark h3 { color: #fff; }
.dark .section-head p { color: rgba(255,255,255,.66); }

/* ---------- Marquee ---------- */
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- Rail ---------- */
.rail {
  display: flex; gap: 22px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 6px 28px 22px; margin: 0 -28px; scrollbar-width: thin;
}
.rail > * { scroll-snap-align: start; flex: 0 0 auto; }
.rail::-webkit-scrollbar { height: 8px; }
.rail::-webkit-scrollbar-thumb { background: rgba(6,64,102,.18); border-radius: 99px; }
.rail::-webkit-scrollbar-track { background: transparent; }

/* utility */
.center { text-align: center; }
.mono { font-family: ui-monospace, 'Courier New', monospace; }
.text-blue { color: var(--blue); }

/* ---------- Brand gradient text ---------- */
.grad-gold {
  background: linear-gradient(120deg, #ffffff, var(--accent-2) 60%, var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ============================================================
   MOBILE — global responsive overrides (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  .section       { padding: 52px 0; }
  .section--tight{ padding: 36px 0; }
  .wrap          { padding: 0 16px; }

  .section-head  { margin-bottom: 32px; }
  .section-head h2 { font-size: clamp(24px, 6.5vw, 36px); }
  .section-head p  { font-size: 15px; margin-top: 12px; }
}

@media (max-width: 480px) {
  .section       { padding: 40px 0; }
  .section--tight{ padding: 28px 0; }
  .btn--lg       { padding: 15px 22px; font-size: 15px; }
}