/* ============================================================
   AIsTheTech — SHARED RESOURCES
   Loaded by both index.html (home) and checklist/index.html
   Single source of truth for: colors, fonts, base styles, nav
   ============================================================ */

@font-face {
  font-family: 'Kalpurush';
  src: url('../fonts/Kalpurush.ttf');
  font-display: swap;
}

:root {
  --navy:        #0a0f2c;
  --navy-mid:    #131a3f;
  --navy-light:  #1c254c;
  --gold:        #d4af6a;
  --gold-light:  #f0d9a0;
  --gold-glow:   #ffd76b;
  --white:       #f7f8fb;
  --text-soft:   #c7cde0;
  --muted:       #8891a8;
  --glow-blue:   #00bfff;
  --danger:      #c85c46;
  --pulse-green: #5cb886;
  --pulse-yellow:#e0b84c;
  --pulse-red:   #c85c46;

  --glass-bg:      rgba(255,255,255,0.045);
  --glass-bg-hi:   rgba(255,255,255,0.075);
  --glass-border:  rgba(255,255,255,0.09);
  --gold-border:   rgba(212,175,106,0.28);

  --font-bn: 'Kalpurush', sans-serif;
  --font-en: 'Poppins', sans-serif;

  --container: 1100px;
  --radius-lg: 26px;
  --radius-md: 16px;
}

* , *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 17px; }

body {
  margin: 0;
  font-family: var(--font-bn);
  background: var(--navy);
  color: var(--text-soft);
  overflow-x: hidden;
  font-size: 1rem;
  line-height: 1.75;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

.lat { font-family: var(--font-en); }

/* force every button / cta-like element onto the same two-font system,
   regardless of any legacy font-family left on the element itself */
button, .btn, [class*="btn-"], [class*="-btn"], [class*="-cta"], .plan-cta {
  font-family: var(--font-bn);
}
button .lat, .btn .lat, [class*="btn-"] .lat, [class*="-btn"] .lat, [class*="-cta"] .lat {
  font-family: var(--font-en);
}

.wrap, .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

section[id], div[id] { scroll-margin-top: 100px; }

/* ---------------- LANGUAGE TOGGLE (shared across all pages) ---------------- */
.lang-toggle{
  position:fixed; right:18px; top:50%; transform:translateY(-50%);
  z-index:250;
  background:var(--glass-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--glass-border);
  border-radius:999px;
  padding:10px 16px;
  font-family:'Poppins',sans-serif; font-weight:600; font-size:12.5px;
  color:var(--gold-light);
  cursor:pointer;
  writing-mode:vertical-rl;
  text-orientation:mixed;
  letter-spacing:1px;
  transition:all 0.25s ease;
}
.lang-toggle:hover{ background:var(--glass-bg-hi); border-color:var(--gold-border); }
@media (max-width:640px){
  .lang-toggle{ right:10px; padding:8px 12px; font-size:11px; }
}

/* ---------------- FOOTER LINKS ROW (shared) ---------------- */
footer .footer-links{ margin-top:12px; display:flex; justify-content:center; gap:16px; flex-wrap:wrap; }
footer .footer-links a{ color:var(--muted); font-size:12.5px; text-decoration:none; }
footer .footer-links a:hover{ color:var(--gold-light); }

/* ---------------- FLOATING NAV (glass capsule) ---------------- */
.floating-nav {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translate(-50%, -160%);
  z-index: 200;
  width: max-content;
  max-width: calc(100% - 32px);
  display: flex;
  align-items: center;
  gap: 46px;
  background: rgba(15, 20, 48, 0.55);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  padding: 10px 12px 10px 26px;
  box-shadow: 0 20px 45px -16px rgba(0,0,0,0.55), inset 0 1px 0 rgba(255,255,255,0.06);
  transition: transform 0.5s cubic-bezier(.19,1,.22,1), opacity 0.45s ease;
  opacity: 0;
}
.floating-nav.visible {
  transform: translate(-50%, 0);
  opacity: 1;
}
.floating-nav .fn-left {
  display: flex; align-items: center;
}
.floating-nav .fn-logo {
  height: 24px; width: auto; display: block;
}
.floating-nav .fn-links {
  display: flex; align-items: center; gap: 34px;
}
.floating-nav a.fn-link {
  font-family: var(--font-en);
  font-size: 14px; font-weight: 500;
  color: var(--muted);
  transition: color 0.2s ease;
  white-space: nowrap;
}
.floating-nav a.fn-link:hover { color: var(--white); }
.floating-nav a.fn-cta {
  font-family: var(--font-en);
  font-size: 13.5px; font-weight: 600;
  color: var(--navy);
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  padding: 11px 22px;
  border-radius: 999px;
  white-space: nowrap;
  transition: filter 0.2s ease, transform 0.2s ease;
}
.floating-nav a.fn-cta:hover { filter: brightness(1.08); transform: translateY(-1px); }

@media (max-width: 720px) {
  .floating-nav { gap: 20px; padding: 8px 8px 8px 20px; }
  .floating-nav .fn-links { gap: 18px; }
  .floating-nav .fn-links a.fn-link:not(.fn-cta) { display: none; }
}

/* ---------------- GLASS CARD UTILITY ---------------- */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

/* ---------------- SCROLL REVEAL (shared timing) ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px) scale(0.985);
  transition: opacity 0.9s cubic-bezier(.19,1,.22,1), transform 0.9s cubic-bezier(.19,1,.22,1);
}
.reveal.visible { opacity: 1; transform: translateY(0) scale(1); }