/* =========================================================
   Analytics Club Certificate Portal
   Styling inspired by ugac-iitb.github.io
   ========================================================= */

:root {
  --c-bg: #ffffff;
  --c-bg-soft: #f6f7fb;
  --c-text: #0c1226;
  --c-text-muted: #5a6079;
  --c-border: #e5e7ef;
  --c-primary: #0a1f55;       /* UGAC navy */
  --c-primary-700: #061541;
  --c-accent: #14b8a6;        /* teal accent from UGAC logo */
  --c-accent-2: #c9a14a;      /* gold from certificate */
  --c-danger: #dc2626;

  --shadow-sm: 0 1px 2px rgba(12, 18, 38, 0.06);
  --shadow-md: 0 6px 24px rgba(12, 18, 38, 0.08);
  --shadow-lg: 0 18px 48px rgba(12, 18, 38, 0.14);

  --radius: 14px;
  --radius-lg: 22px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--c-primary); }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}
.container.narrow { max-width: 720px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--c-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}
.logo {
  height: 40px;
  width: auto;
  object-fit: contain;
}
.logo-ugac { height: 38px; }
.logo-ac { height: 36px; }
.brand-divider {
  width: 1px;
  height: 28px;
  background: var(--c-border);
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand-title {
  font-weight: 700;
  font-size: 16px;
  color: var(--c-primary);
}
.brand-sub {
  font-size: 12px;
  color: var(--c-text-muted);
}
.nav-links {
  display: flex;
  gap: 24px;
}
.nav-links a {
  color: var(--c-text);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  transition: color .15s;
}
.nav-links a:hover { color: var(--c-primary); }

/* ---------- hero ---------- */
.hero {
  padding: 80px 0 40px;
  background:
    radial-gradient(900px 420px at 12% -10%, rgba(20,184,166,0.12), transparent 60%),
    radial-gradient(700px 360px at 95% 0%, rgba(10,31,85,0.10), transparent 60%),
    var(--c-bg);
  text-align: center;
  transition: max-height .3s, padding .3s, opacity .2s;
}
/* Compact hero when not on the landing step */
body.compact-hero .hero {
  padding: 28px 0 8px;
}
body.compact-hero .hero-title { font-size: clamp(28px, 4vw, 40px); }
body.compact-hero .hero-sub { display: none; }
body.compact-hero .eyebrow { margin-bottom: 12px; }
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-primary);
  background: rgba(10,31,85,0.07);
  padding: 6px 14px;
  border-radius: 999px;
  margin: 0 0 22px;
}
.hero-title {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1.05;
  margin: 0 0 18px;
  color: var(--c-text);
  letter-spacing: -0.01em;
}
.hero-title .accent {
  background: linear-gradient(120deg, var(--c-accent) 0%, var(--c-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  max-width: 640px;
  margin: 0 auto;
  color: var(--c-text-muted);
  font-size: 17px;
}

/* ---------- steps ---------- */
.step {
  display: none;
  padding: 56px 0 96px;
}
.step.active { display: block; }

.step-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--c-text);
  letter-spacing: -0.01em;
}
.step-sub {
  color: var(--c-text-muted);
  margin: 0 0 32px;
  font-size: 16px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  background: none;
  border: none;
  color: var(--c-text-muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  padding: 0;
  margin-bottom: 16px;
  font-family: inherit;
}
.back-link:hover { color: var(--c-primary); }

/* ---------- pick cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 12px;
}
.pick-card {
  text-align: left;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  cursor: pointer;
  transition: transform .18s, box-shadow .18s, border-color .18s;
  font-family: inherit;
  color: inherit;
  position: relative;
  overflow: hidden;
}
.pick-card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  opacity: 0;
  transition: opacity .18s;
}
.pick-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.pick-card:hover::before { opacity: 1; }
.pick-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-primary);
  background: rgba(10,31,85,0.08);
  padding: 5px 10px;
  border-radius: 6px;
  margin-bottom: 16px;
}
.pick-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--c-text);
}
.pick-card p {
  margin: 0 0 24px;
  color: var(--c-text-muted);
  font-size: 15px;
}
.pick-arrow {
  font-weight: 600;
  color: var(--c-primary);
  font-size: 14px;
}

/* ---------- form ---------- */
.name-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.name-form input {
  flex: 1 1 280px;
  font-family: inherit;
  font-size: 16px;
  padding: 14px 18px;
  border: 1.5px solid var(--c-border);
  border-radius: 12px;
  background: var(--c-bg);
  color: var(--c-text);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.name-form input:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 4px rgba(10,31,85,0.10);
}
.btn-primary {
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  padding: 14px 26px;
  border: none;
  border-radius: 12px;
  background: var(--c-primary);
  color: white;
  cursor: pointer;
  transition: background .15s, transform .12s;
  white-space: nowrap;
}
.btn-primary:hover { background: var(--c-primary-700); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { opacity: .6; cursor: not-allowed; }

/* ---------- suggest box ---------- */
.suggest-box {
  margin-top: 18px;
  padding: 20px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-border);
  border-radius: 12px;
}
.suggest-box.hidden { display: none; }
.suggest-box h4 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.suggest-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.suggest-item {
  text-align: left;
  background: white;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 12px 16px;
  cursor: pointer;
  font-family: inherit;
  font-size: 15px;
  color: var(--c-text);
  transition: border-color .12s, transform .12s;
}
.suggest-item:hover {
  border-color: var(--c-primary);
  transform: translateX(2px);
}

/* ---------- results ---------- */
.results-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 12px;
}
.cert-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.cert-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.cert-meta {
  flex: 1 1 320px;
  min-width: 0;
}
.cert-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 10px;
}
.cert-tag.bootcamp {
  color: var(--c-primary);
  background: rgba(10,31,85,0.08);
}
.cert-tag.wids {
  color: #7c2d12;
  background: rgba(220, 88, 24, 0.10);
}
.cert-tag.mentor {
  color: #4a1d96;
  background: rgba(124, 58, 237, 0.10);
}
.cert-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--c-text);
  word-break: break-word;
}
.cert-card .cert-name {
  color: var(--c-text-muted);
  font-size: 14px;
  margin: 0;
}
.cert-card .cert-name strong { color: var(--c-text); font-weight: 600; }

.cert-preview-wrap {
  position: relative;
  background: var(--c-bg-soft);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--c-border);
}
.cert-preview-wrap canvas {
  display: block;
  width: 100%;
  height: auto;
}
.cert-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-bg-soft);
  color: var(--c-text-muted);
  font-size: 14px;
}
.cert-loading.hidden { display: none; }

.download-btn {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 22px;
  border: none;
  border-radius: 10px;
  background: var(--c-primary);
  color: white;
  cursor: pointer;
  transition: background .15s;
}
.download-btn:hover { background: var(--c-primary-700); }
.download-btn svg {
  width: 16px; height: 16px;
}

/* ---------- empty state ---------- */
.empty-state {
  margin-top: 12px;
  padding: 36px;
  background: var(--c-bg-soft);
  border: 1px dashed var(--c-border);
  border-radius: var(--radius-lg);
  text-align: center;
}
.empty-state.hidden { display: none; }
.empty-state h3 {
  font-family: 'Playfair Display', serif;
  margin: 0 0 8px;
  font-size: 22px;
}
.empty-state p { margin: 0; color: var(--c-text-muted); }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--c-border);
  background: var(--c-bg-soft);
  padding: 32px 0;
  margin-top: 40px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  color: var(--c-text-muted);
}
.footer-links {
  display: flex;
  gap: 20px;
}
.footer-links a {
  color: var(--c-text-muted);
  text-decoration: none;
  font-weight: 500;
}
.footer-links a:hover { color: var(--c-primary); }

/* ---------- responsive ---------- */
@media (max-width: 600px) {
  .header-inner { height: auto; padding: 14px 0; flex-wrap: wrap; gap: 12px; }
  .brand-text { display: none; }
  .nav-links { gap: 14px; }
  .hero { padding: 56px 0 24px; }
  .step { padding: 36px 0 60px; }
  .pick-card { padding: 26px 22px; }
  .card-grid { gap: 16px; }
  .footer-inner { flex-direction: column; text-align: center; }
}