/* =========================================================================
   AIUdaan — Launch site
   Brand: AI Udaan Brand Guidelines v1.0 (March 2026)
   Palette:
     Navy Blue   #1A1A5E  wordmark, headings
     Coral       #D85A30  'AI' text, CTAs
     Amber Gold  #EF9F27  'Udaan' text, accents
     Deep Amber  #BA7517  supporting details
     Light Cream #FAEEDA  light backgrounds
     Dark Navy   #1A1A1E  dark-mode background
   ========================================================================= */

:root {
  --navy:        #1A1A5E;
  --coral:       #D85A30;
  --amber:       #EF9F27;
  --deep-amber:  #BA7517;
  --cream:       #FAEEDA;
  --dark-navy:   #1A1A1E;

  --ink:         #1d1d33;
  --muted:       #5b5b73;
  --line:        #e7e3da;
  --white:       #ffffff;
  --cream-soft:  #fdf8ef;

  --container:   1120px;
  --radius:      14px;
  --radius-lg:   22px;
  --shadow-sm:   0 1px 2px rgba(26, 26, 94, .06), 0 4px 14px rgba(26, 26, 94, .06);
  --shadow-md:   0 10px 30px rgba(26, 26, 94, .10);
  --shadow-cta:  0 8px 22px rgba(216, 90, 48, .28);

  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  /* Display serif for h1/h2, matching the design comp. Set this to var(--font)
     to put section headings back on Inter. */
  --font-display: "Playfair Display", Georgia, "Times New Roman", serif;

  --num: #9c9284;   /* warm grey used for the step numerals */
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--coral); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { color: var(--navy); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .5em; }
h1, h2 { font-family: var(--font-display); font-weight: 600; letter-spacing: -.01em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.9rem, 3.8vw, 2.9rem); }
h3 { font-size: 1.25rem; font-weight: 700; }
p  { margin: 0 0 1rem; }

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 22px; }
[id] { scroll-margin-top: 84px; }
.section { padding: clamp(56px, 8vw, 104px) 0; }
.eyebrow {
  display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--deep-amber); margin-bottom: .9rem;
}
.eyebrow--coral { color: var(--coral); }
.center { text-align: center; }
.lead { font-size: 1.15rem; color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.section--tint { background: var(--cream-soft); border-block: 1px solid var(--line); }
.section-head { max-width: 62ch; margin-bottom: 2.2rem; }
.section-head h2 { margin-bottom: .6rem; }
.section-head .lead { margin-bottom: 0; }
.note { max-width: 66ch; color: var(--muted); font-size: .98rem; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--navy); color: #fff; padding: .7rem 1.1rem; border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; text-decoration: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .85rem 1.5rem; border-radius: 999px;
  font-weight: 700; font-size: 1rem; line-height: 1;
  border: 2px solid transparent; cursor: pointer; transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn .arw { transition: transform .15s ease; }
.btn:hover .arw { transform: translateX(3px); }
.btn--primary { background: var(--coral); color: #fff; box-shadow: var(--shadow-cta); }
.btn--primary:hover { background: #c44e28; color: #fff; }
.btn--amber { background: var(--amber); color: #3a2402; box-shadow: 0 8px 22px rgba(239,159,39,.30); }
.btn--amber:hover { background: var(--deep-amber); color: #fff; }
/* Comp uses a thin neutral outline here, not a heavy navy one. */
.btn--ghost { background: transparent; color: var(--navy); border-color: #d9d2c6; border-width: 1px; }
.btn--ghost:hover { background: #fff; border-color: var(--navy); color: var(--navy); }
.btn--light { background: #fff; color: var(--navy); border-color: var(--line); }
.btn--light:hover { border-color: var(--navy); }
.btn--lg { padding: 1rem 1.55rem; font-size: 1.02rem; }
.btn--sm { padding: .6rem 1.1rem; font-size: .92rem; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.94); backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 12px; }
.brand { display: inline-flex; align-items: center; gap: .6rem; min-width: 0; }
/* The lockup is wide, so if the bar ever squeezes it, letterbox rather than
   distort — `img { max-width: 100% }` alone would stretch it against the
   fixed height. */
.brand img { height: 42px; width: auto; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-links a {
  color: var(--navy); font-weight: 600; font-size: .98rem;
  padding-bottom: 2px; border-bottom: 2px solid transparent;
}
.nav-links a:hover { color: var(--coral); text-decoration: none; }
.nav-links a.is-current { color: var(--coral); border-bottom-color: var(--amber); }

/* The CTA sits outside .nav-links so it is never hidden by the mobile menu. */
.nav-actions { display: flex; align-items: center; gap: .5rem; }
.nav-cta { flex: 0 0 auto; white-space: nowrap; }
.nav-cta .cta-short { display: none; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; transition: .2s; }

/* ---------- Hero ---------- */
.hero { background: var(--cream-soft); border-bottom: 1px solid var(--line); }
.hero-grid {
  display: grid; grid-template-columns: 1.15fr 1fr;
  gap: clamp(2rem, 4vw, 3.6rem); align-items: center;
  padding-block: clamp(44px, 7vw, 88px);
}
.hero h1 { margin-bottom: 1.1rem; max-width: 17ch; }
.hero-sub {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem); color: #3a3a52;
  max-width: 42ch; margin: 0 0 1.8rem;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: .9rem; }
.hero-fine { margin: 1.1rem 0 0; font-size: .92rem; color: var(--muted); }

/* Credibility card — carries the bio that used to live in its own section. */
.hero-side { display: grid; gap: 1rem; }
.bio-card {
  margin: 0; background: var(--navy); color: #fff;
  border-radius: var(--radius-lg); padding: clamp(1.5rem, 3vw, 2.1rem);
  box-shadow: var(--shadow-md);
}
.bio-lead {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.2rem, 1.9vw, 1.5rem); line-height: 1.3; color: #fff;
  margin-bottom: 1.1rem;
}
.bio-body { font-size: 1rem; color: #cfcfe6; margin-bottom: 1.2rem; }
.bio-attr { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem .8rem; }
/* The source is a 4:5 cut-out with a transparent background, so the circle
   supplies its own fill, and the image is scaled about the face — plain
   object-fit can only ever frame the top of the portrait, not the head. */
.bio-avatar {
  flex: 0 0 auto; display: block; width: 60px; height: 60px;
  border-radius: 50%; overflow: hidden;
  background: rgba(255,255,255,.12);
  box-shadow: 0 0 0 2px rgba(255,255,255,.22);
}
.bio-avatar img {
  width: 100%; height: 100%; object-fit: cover; object-position: 50% 0;
  transform: scale(1.3); transform-origin: 50% 15%;
}
.bio-name { font-weight: 700; color: var(--amber); }
.linkedin-pill {
  display: inline-flex; align-items: center; gap: .3rem;
  font-size: .82rem; font-weight: 700; color: var(--navy);
  padding: .28rem .7rem .28rem .55rem; border: 1px solid var(--line);
  border-radius: 999px; background: #fff;
}
.linkedin-pill:hover { color: var(--coral); border-color: var(--coral); text-decoration: none; }
.linkedin-pill svg { flex: 0 0 auto; }
.linkedin-pill--onDark {
  color: #fff; background: transparent; border-color: rgba(255,255,255,.35);
  box-shadow: none; top: 0;
}
.linkedin-pill--onDark:hover { color: var(--amber); border-color: var(--amber); }

.stats { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; }
.stats li {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem .95rem; font-size: .88rem; line-height: 1.4; color: var(--muted);
}
.stat-num {
  display: block; margin-bottom: .35rem;
  font-family: var(--font-display); font-weight: 600; font-size: 1.6rem; color: var(--navy);
}


/* ---------- How it works: five ruled columns ---------- */
.how-grid {
  list-style: none; margin: 2.8rem 0 2.2rem; padding: 0;
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 2rem 1.5rem;
}
.how-step { border-top: 2px solid var(--navy); padding-top: 1.1rem; }
.how-step--accent { border-top-color: var(--coral); }
.how-step--wide p { max-width: 72ch; }
.how-num {
  display: block; margin-bottom: .8rem;
  font-size: .78rem; font-weight: 700; letter-spacing: .16em; color: var(--num);
}
.how-step--accent .how-num { color: var(--coral); }
/* Slightly tighter type than the rest of the page so five columns fit. */
.how-step h3 { margin-bottom: .55rem; font-size: 1.02rem; }
.how-step p { margin: 0; color: #34344a; font-size: .92rem; }

/* ---------- Plans (Two ways in) ---------- */
/* The Arc takes the wider column so it reads as the primary option; both cards
   stretch to the same height and their footer lines sit on the bottom edge. */
.plans { display: grid; grid-template-columns: 45fr 55fr; gap: 1.2rem; margin: 1.8rem 0 1.4rem; }
.plan {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-top: 5px solid var(--amber);
  border-radius: var(--radius-lg); padding: 1.6rem 1.4rem; box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease;
}
.plan:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.plan--arc { border: 1px solid var(--coral); border-top: 5px solid var(--coral); }
.plan-tag {
  display: block; margin-bottom: .55rem;
  font-size: .72rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--num);
}
.plan--arc .plan-tag { color: var(--coral); }
.plan h3 { margin-bottom: .2rem; }
.plan .price { font-size: 1.35rem; font-weight: 800; color: var(--deep-amber); margin-bottom: .7rem; }
.plan p { color: #34344a; font-size: .98rem; }
/* Nested aside inside the Arc card: tinted panel with a left accent rule. */
.plan-note {
  margin: 0 0 1rem; padding: .9rem 1rem;
  background: var(--cream-soft); border-left: 3px solid var(--amber);
  border-radius: 0 var(--radius) var(--radius) 0; font-size: .92rem;
}
.plan-note strong { color: var(--navy); }
/* margin-top:auto pins the footer line to the bottom of the equal-height card.
   The gap above the hairline comes from the previous paragraph's own margin,
   which flex keeps intact, so the line never crowds the body copy. */
.plan-foot {
  margin: 0; margin-top: auto; padding-top: .9rem; border-top: 1px solid var(--line);
  font-size: .9rem; color: var(--muted);
}
.plan-foot strong { color: var(--navy); }

/* ---------- Practical strip under the plans ---------- */
.practical {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem;
  margin: 2rem 0 1.6rem; padding-top: 1.6rem; border-top: 1px solid var(--line);
}
.practical-item h3 { margin-bottom: .35rem; font-size: .98rem; font-weight: 700; }
.practical-item p { margin: 0; color: #34344a; font-size: .92rem; }

.plans-note { font-weight: 700; color: var(--navy); }

/* ---------- FAQ ---------- */
.faq-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0; margin-bottom: .9rem; box-shadow: var(--shadow-sm); overflow: hidden;
}
.faq-item summary {
  cursor: pointer; padding: 1rem 1.3rem; font-weight: 700; color: var(--navy);
  font-size: 1.08rem; list-style-position: inside;
}
.faq-item summary:hover { color: var(--coral); }
.faq-item[open] summary { border-bottom: 1px solid var(--line); background: var(--cream-soft); }
.faq-item ul, .faq-item p { margin: 1rem 1.3rem; }
.faq-item ul { list-style: none; padding: 0; }
.faq-item ul li { position: relative; padding-left: 1.6rem; margin-bottom: .55rem; color: #34344a; }
.faq-item ul li::before {
  content: ""; position: absolute; left: 0; top: .55em; width: 8px; height: 8px;
  border-radius: 2px; background: var(--amber); transform: rotate(45deg);
}

/* ---------- Testimonials ---------- */
.tcards { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; margin-top: 1.6rem; }
.tcard {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.5rem 1.4rem; box-shadow: var(--shadow-sm); margin: 0;
}
.tcard .tcard-title { margin: 0 0 .55rem; font-size: 1.15rem; color: var(--navy); font-weight: 700; }
/* Name sits inline with the LinkedIn pill; the role follows on its own line. */
.tcard .tcard-name {
  display: flex; align-items: center; flex-wrap: wrap; gap: .6rem;
  margin: 0 0 .2rem; font-size: 1rem; font-weight: 700; color: var(--deep-amber);
}
.tcard .tcard-role {
  margin: 0 0 .95rem; font-size: .92rem; font-weight: 700;
  color: var(--deep-amber); letter-spacing: .02em;
}
/* Same pill as the hero, but the mark keeps LinkedIn blue against the white card. */
.tcard .linkedin-pill { white-space: nowrap; box-shadow: var(--shadow-sm); }
.tcard .linkedin-pill svg { width: 15px; height: 15px; fill: #0A66C2; }
.svg-defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.tcard .quote { font-size: 1rem; color: #2c2c44; margin: 0; font-style: italic; }

/* Full story is collapsed so the page stays scannable. */
.tmore { margin-top: .9rem; }
.tmore summary {
  cursor: pointer; font-weight: 700; font-size: .9rem; color: var(--coral);
  list-style-position: inside;
}
.tmore summary:hover { text-decoration: underline; }
.tmore p { margin: .9rem 0 0; font-size: .95rem; color: #34344a; }
.tmore p:last-child { margin-bottom: 0; }

/* ---------- Final CTA ---------- */
.cta-band { background: linear-gradient(135deg, var(--dark-navy) 0%, var(--navy) 100%); color: #fff; }
.cta-band h2 { color: #fff; }
.cta-band .eyebrow { color: var(--amber); }
.cta-band p { color: #cfcfe6; max-width: 52ch; margin-inline: auto; }
.cta-band p a { color: var(--amber); }   /* coral fails contrast on the dark band */
.cta-band .hero-cta { justify-content: center; margin-top: 1.6rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--dark-navy); color: #c9c9da; padding: 56px 0 30px; }
.site-footer a { color: var(--amber); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; }
.site-footer img.flogo { height: 52px; margin-bottom: 1rem; }
.udaan-note { font-size: .95rem; color: #b6b6cb; max-width: 40ch; }
.udaan-note .dev { font-family: "Noto Sans Devanagari", var(--font); }
.footer-col h4 { color: #fff; font-size: .85rem; letter-spacing: .1em; text-transform: uppercase; margin: 0 0 .9rem; }
.footer-col a { display: block; color: #c9c9da; margin-bottom: .5rem; font-weight: 500; }
.footer-col a:hover { color: var(--amber); text-decoration: none; }
.footer-bottom {
  margin-top: 2.4rem; padding-top: 1.4rem; border-top: 1px solid rgba(255,255,255,.10);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; font-size: .85rem; color: #8f8fa6;
}
.tagline-pill { color: var(--amber); font-weight: 600; }

/* ---------- Responsive ---------- */
/* Five columns need the full container to stay readable; below that the steps
   drop to two-up and the fifth spans the row so it isn't a lone stub. */
@media (max-width: 1100px) {
  .how-grid { grid-template-columns: 1fr 1fr; gap: 1.8rem; }
  .how-step--wide { grid-column: 1 / -1; }
}
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero h1, .hero-sub { max-width: none; }
  .how-grid { grid-template-columns: 1fr 1fr; gap: 1.8rem; }
  .plans { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links {
    position: fixed; inset: 66px 0 auto 0; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); padding: 1rem 22px 1.4rem; gap: 1rem;
    transform: translateY(-130%); transition: transform .25s ease; box-shadow: var(--shadow-md);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: .3rem 0; border-bottom: 0; }
  .nav-links a.is-current { border-bottom: 0; }
  .nav-toggle { display: block; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .tcards, .footer-grid, .how-grid, .practical { grid-template-columns: 1fr; }
  .practical { gap: 1.4rem; }
  .how-grid { gap: 1.5rem; margin-top: 2rem; }
  .brand img { height: 34px; }
  /* Below 370px the markup swaps in the icon-only mark (see index.html). */
  /* Three stat cards side by side get too cramped below this width. */
  .stats { grid-template-columns: 1fr; }
  .stats li { display: flex; align-items: baseline; gap: .6rem; padding: .8rem .95rem; }
  .stat-num { margin-bottom: 0; font-size: 1.35rem; }
  /* Keep the CTA on the bar at the narrowest widths by shortening the label. */
  .nav-cta { padding: .55rem .9rem; font-size: .88rem; }
  .nav-cta .cta-long { display: none; }
  .nav-cta .cta-short { display: inline; }
  .hero-cta .btn { width: 100%; justify-content: center; }
}
/* Narrowest band that still shows the wordmark: trim the lockup so it, the CTA
   and the menu button all stay on one row. */
@media (max-width: 420px) {
  .brand img { height: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}