/* ============================================================
   London Sukuk Summit 2026 — Modern redesign
   Shared stylesheet
   ============================================================ */

:root {
  --green-900: #06231c;
  --green-800: #0a3528;
  --green-700: #0f4a39;
  --green-600: #14624b;
  --green-500: #1c8266;
  --gold-600: #a9851c;
  --gold-500: #c9a227;
  --gold-400: #d9b94a;
  --gold-300: #e8d28a;
  --cream: #f7f4ec;
  --cream-2: #efe9da;
  --ink: #11201b;
  --muted: #5d6b64;
  --white: #ffffff;
  --line: rgba(15, 74, 57, 0.12);
  --shadow-sm: 0 4px 14px rgba(6, 35, 28, 0.08);
  --shadow-md: 0 18px 40px rgba(6, 35, 28, 0.14);
  --radius: 18px;
  --radius-sm: 12px;
  --container: 1180px;
  --font-head: "Fraunces", "Playfair Display", Georgia, serif;
  --font-body: "Plus Jakarta Sans", "Inter", system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 600; line-height: 1.12; letter-spacing: -0.01em; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-body); font-weight: 700;
  font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--gold-500);
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--gold-500); display: inline-block; }
.eyebrow.center { justify-content: center; }

.section { padding: 96px 0; }
.section-head { max-width: 660px; margin-bottom: 54px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(1.9rem, 3.6vw, 3rem); margin: 16px 0 14px; }
.section-head p { color: var(--muted); font-size: 1.05rem; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 0.95rem;
  padding: 14px 28px; border-radius: 999px;
  border: 1.5px solid transparent; cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn-gold { background: var(--gold-500); color: var(--green-900); box-shadow: 0 10px 24px rgba(201,162,39,.32); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(201,162,39,.42); }
.btn-ghost { border-color: rgba(255,255,255,.4); color: var(--white); }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-dark { background: var(--green-700); color: var(--white); }
.btn-dark:hover { background: var(--green-600); transform: translateY(-2px); }
.btn-outline { border-color: var(--green-600); color: var(--green-700); }
.btn-outline:hover { background: var(--green-700); color: #fff; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247,244,236,.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: flex; align-items: center; gap: 12px; font-family: var(--font-head); font-weight: 600; font-size: 1.15rem; color: var(--green-800); }
.brand .mark {
  width: 38px; height: 38px; border-radius: 11px; flex: none;
  background: linear-gradient(135deg, var(--green-700), var(--green-500));
  display: grid; place-items: center; color: var(--gold-300); font-size: 1.1rem;
  box-shadow: var(--shadow-sm);
}
.brand small { display: block; font-family: var(--font-body); font-size: .62rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.nav-links { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav-links a { font-size: .92rem; font-weight: 600; color: var(--green-800); position: relative; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0; background: var(--gold-500); transition: width .25s ease; }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.menu-toggle { display: none; background: none; border: 0; cursor: pointer; flex-direction: column; gap: 5px; }
.menu-toggle span { width: 26px; height: 2px; background: var(--green-800); border-radius: 2px; transition: .3s; }

/* Hero */
.hero {
  position: relative; color: var(--white);
  background:
    radial-gradient(120% 120% at 80% 0%, rgba(28,130,102,.45), transparent 55%),
    linear-gradient(160deg, var(--green-900), var(--green-700) 60%, var(--green-600));
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    radial-gradient(circle at 12% 80%, rgba(201,162,39,.18), transparent 30%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cpath d='M40 0l12 28 28 12-28 12-12 28-12-28L0 40l28-12z' fill='none' stroke='%23ffffff' stroke-opacity='0.05'/%3E%3C/svg%3E");
}
.hero-inner { position: relative; z-index: 2; padding: 96px 0 110px; max-width: 820px; }
.hero .pill {
  display: inline-flex; gap: 10px; align-items: center;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18);
  padding: 8px 16px; border-radius: 999px; font-size: .8rem; font-weight: 600; letter-spacing: .04em;
  margin-bottom: 26px;
}
.hero h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); margin-bottom: 22px; }
.hero h1 .accent { color: var(--gold-400); font-style: italic; }
.hero p.lead { font-size: 1.15rem; color: rgba(255,255,255,.82); max-width: 620px; margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 46px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 38px; }
.hero-meta .item span { display: block; font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--gold-300); font-weight: 700; margin-bottom: 4px; }
.hero-meta .item strong { font-family: var(--font-head); font-size: 1.3rem; font-weight: 600; }

/* Stats */
.stats { background: var(--green-800); color: #fff; padding: 56px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat .num { font-family: var(--font-head); font-size: clamp(2.2rem, 4vw, 3.1rem); color: var(--gold-400); }
.stat .lbl { font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.75); font-weight: 600; }

/* About / split */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.about-cards { display: grid; gap: 18px; }
.about-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 24px 26px; box-shadow: var(--shadow-sm); transition: transform .2s; }
.about-card:hover { transform: translateY(-3px); }
.about-card h4 { font-size: 1.15rem; margin-bottom: 8px; color: var(--green-700); }
.about-card p { color: var(--muted); font-size: .96rem; }
.lead-copy p { color: var(--muted); margin-bottom: 18px; font-size: 1.05rem; }

/* Speakers */
.speaker-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.speaker-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--line); transition: transform .25s, box-shadow .25s; }
.speaker-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.speaker-photo { aspect-ratio: 1/1; background: linear-gradient(150deg, var(--green-600), var(--green-800)); display: grid; place-items: center; color: var(--gold-300); font-family: var(--font-head); font-size: 2.6rem; position: relative; }
.speaker-photo span.flag { position: absolute; top: 12px; right: 12px; font-size: 1.1rem; }
.speaker-info { padding: 20px 22px 24px; }
.speaker-info h4 { font-size: 1.12rem; margin-bottom: 4px; }
.speaker-info .role { font-size: .82rem; color: var(--gold-600); font-weight: 700; }
.speaker-info .org { font-size: .85rem; color: var(--muted); margin-top: 2px; }
.speaker-info p.bio { font-size: .9rem; color: var(--muted); margin-top: 12px; }

/* Programme / timeline */
.day-tabs { display: flex; gap: 12px; justify-content: center; margin-bottom: 44px; flex-wrap: wrap; }
.day-tab { background: #fff; border: 1.5px solid var(--line); border-radius: 999px; padding: 12px 26px; font-weight: 700; cursor: pointer; color: var(--green-800); transition: .2s; font-family: inherit; font-size: .95rem; }
.day-tab.active { background: var(--green-700); color: #fff; border-color: var(--green-700); }
.day-tab small { display: block; font-weight: 600; font-size: .72rem; opacity: .8; }
.day-panel { display: none; }
.day-panel.active { display: block; animation: fade .4s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(8px);} to {opacity:1; transform:none;} }

.timeline { position: relative; max-width: 880px; margin: 0 auto; }
.tl-item { display: grid; grid-template-columns: 132px 1fr; gap: 26px; }
.tl-time { text-align: right; font-family: var(--font-head); color: var(--green-700); font-weight: 600; padding-top: 22px; font-size: .98rem; }
.tl-body { position: relative; border-left: 2px solid var(--line); padding: 22px 0 30px 30px; }
.tl-body::before { content: ""; position: absolute; left: -8px; top: 28px; width: 14px; height: 14px; border-radius: 50%; background: var(--gold-500); box-shadow: 0 0 0 4px var(--cream); }
.tl-item.break .tl-body::before { background: var(--green-500); }
.tl-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 18px 22px; box-shadow: var(--shadow-sm); }
.tl-item.break .tl-card { background: var(--cream-2); box-shadow: none; }
.tl-tag { font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 700; color: var(--gold-600); }
.tl-card h4 { font-size: 1.12rem; margin: 6px 0 8px; color: var(--green-800); }
.tl-card p { font-size: .92rem; color: var(--muted); margin-bottom: 6px; }
.tl-card .who { font-size: .85rem; color: var(--green-700); font-weight: 600; }
.tl-card ul { margin: 8px 0 0 18px; color: var(--muted); font-size: .9rem; }
.tl-card ul li { margin-bottom: 4px; }

/* Sponsors */
.sponsor-tier { margin-bottom: 46px; text-align: center; }
.sponsor-tier .tier-label { font-size: .78rem; letter-spacing: .2em; text-transform: uppercase; font-weight: 700; color: var(--gold-600); margin-bottom: 18px; }
.sponsor-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 22px; }
.sponsor-logo { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 26px 40px; min-width: 220px; font-family: var(--font-head); font-size: 1.3rem; color: var(--green-700); box-shadow: var(--shadow-sm); display: grid; place-items: center; text-align: center; }
.sponsor-logo small { display:block; font-family: var(--font-body); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin-top: 4px; }

/* Testimonials */
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.quote-card { background: #fff; border-radius: var(--radius); padding: 30px 28px; box-shadow: var(--shadow-sm); border: 1px solid var(--line); position: relative; }
.quote-card::before { content: "\201C"; font-family: var(--font-head); font-size: 4rem; color: var(--gold-300); position: absolute; top: 6px; left: 18px; line-height: 1; }
.quote-card p { position: relative; z-index: 1; color: var(--ink); font-size: .98rem; margin-bottom: 20px; padding-top: 18px; }
.quote-author { display: flex; align-items: center; gap: 12px; }
.quote-author .av { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(150deg, var(--green-600), var(--green-800)); color: var(--gold-300); display: grid; place-items: center; font-family: var(--font-head); font-weight: 600; }
.quote-author strong { display: block; font-size: .95rem; }
.quote-author span { font-size: .8rem; color: var(--muted); }

/* Feature / value cards */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; box-shadow: var(--shadow-sm); transition: transform .2s; }
.feature-card:hover { transform: translateY(-4px); }
.feature-card .ic { width: 50px; height: 50px; border-radius: 14px; background: linear-gradient(150deg, var(--green-600), var(--green-800)); color: var(--gold-300); display: grid; place-items: center; font-size: 1.4rem; margin-bottom: 18px; }
.feature-card h4 { font-size: 1.2rem; margin-bottom: 10px; color: var(--green-800); }
.feature-card p { color: var(--muted); font-size: .95rem; }

/* CTA band */
.cta-band { background: linear-gradient(135deg, var(--green-800), var(--green-600)); color: #fff; border-radius: var(--radius); padding: 56px; text-align: center; position: relative; overflow: hidden; }
.cta-band::after { content:""; position:absolute; inset:0; background: radial-gradient(circle at 85% 20%, rgba(201,162,39,.25), transparent 40%); }
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 14px; }
.cta-band p { color: rgba(255,255,255,.85); max-width: 560px; margin: 0 auto 28px; }

/* Page hero (interior) */
.page-hero { background: linear-gradient(160deg, var(--green-900), var(--green-700)); color: #fff; padding: 72px 0 64px; position: relative; overflow: hidden; }
.page-hero::after { content:""; position:absolute; inset:0; background: radial-gradient(circle at 90% 10%, rgba(201,162,39,.18), transparent 40%); }
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin: 14px 0 12px; }
.page-hero p { color: rgba(255,255,255,.82); max-width: 600px; font-size: 1.05rem; }
.breadcrumb { font-size: .82rem; color: rgba(255,255,255,.6); }
.breadcrumb a:hover { color: var(--gold-300); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-info .row { display: flex; gap: 16px; margin-bottom: 26px; }
.contact-info .ic { width: 46px; height: 46px; border-radius: 12px; background: var(--green-700); color: var(--gold-300); display: grid; place-items: center; flex: none; }
.contact-info h4 { font-size: 1rem; margin-bottom: 2px; }
.contact-info p { color: var(--muted); font-size: .95rem; }
.form-card { background: #fff; border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow-md); border: 1px solid var(--line); }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .82rem; font-weight: 700; margin-bottom: 7px; color: var(--green-800); }
.field input, .field textarea, .field select { width: 100%; padding: 13px 16px; border: 1.5px solid var(--line); border-radius: 10px; font-family: inherit; font-size: .95rem; background: var(--cream); transition: .2s; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--green-500); background: #fff; }

/* Footer */
.site-footer { background: var(--green-900); color: rgba(255,255,255,.72); padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; margin-bottom: 44px; }
.footer-grid h5 { font-family: var(--font-body); font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; color: var(--gold-300); margin-bottom: 16px; }
.footer-grid ul { list-style: none; }
.footer-grid ul li { margin-bottom: 10px; font-size: .92rem; }
.footer-grid ul li a:hover { color: var(--gold-300); }
.footer-brand p { font-size: .92rem; margin: 14px 0 0; max-width: 280px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: .82rem; color: rgba(255,255,255,.5); }

/* Countdown */
.countdown { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin-top: 14px; }
.cd-box { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: 14px; padding: 16px 22px; min-width: 92px; text-align: center; }
.cd-box .n { font-family: var(--font-head); font-size: 2rem; color: var(--gold-400); display:block; line-height: 1; }
.cd-box .l { font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.7); margin-top: 6px; }

/* Responsive */
@media (max-width: 980px) {
  .split, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .speaker-grid, .feature-grid, .quote-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav-links { position: fixed; inset: 74px 0 auto 0; background: var(--cream); flex-direction: column; padding: 24px; gap: 18px; border-bottom: 1px solid var(--line); transform: translateY(-130%); transition: transform .35s ease; box-shadow: var(--shadow-md); align-items: flex-start; }
  .nav-links.open { transform: translateY(0); }
  .menu-toggle { display: flex; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .section { padding: 64px 0; }
  .tl-item { grid-template-columns: 78px 1fr; gap: 14px; }
  .tl-time { font-size: .8rem; }
  .cta-band { padding: 40px 24px; }
}
@media (max-width: 520px) {
  .speaker-grid, .feature-grid, .quote-grid, .footer-grid { grid-template-columns: 1fr; }
}