/* =====================================================================
   12th Elets NBFC100 Tech Summit, Mumbai — 24 November 2022
   site.css

   The capture kept all 20 template stylesheets, but they depend on 84
   background images and three icon fonts that were never downloaded —
   every one of those rules had to be neutralised, which left the theme
   with almost nothing to show. The markup was rebuilt on clean classes
   and this is the whole presentation layer. Font Awesome 4.7 and Inter
   come from a CDN.
   ===================================================================== */

:root {
    --ink: #0b1f3a;
    --ink-2: #12304f;
    --body: #4a5a6a;
    --line: #e4eaf1;
    --smoke: #f5f8fb;
    --accent: #e11d48;
    --accent-2: #f59e0b;
    --blue: #1d4ed8;
    --radius: 16px;
    --shadow-sm: 0 4px 14px rgba(11, 31, 58, .07);
    --shadow: 0 16px 40px rgba(11, 31, 58, .13);
    --shadow-lg: 0 28px 66px rgba(11, 31, 58, .22);
    --font: "Inter", "Segoe UI", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); font-size: 17px; line-height: 1.7; color: var(--body); background: #fff; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--accent); }
h1, h2, h3, h4 { margin: 0 0 .5em; color: var(--ink); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }

.skip-link { position: absolute; left: -9999px; top: 0; z-index: 3000; padding: 12px 22px; background: var(--accent); color: #fff; font-weight: 700; border-radius: 0 0 6px 0; }
.skip-link:focus { left: 0; }

.wrap { width: min(1200px, 100% - 40px); margin-inline: auto; }
.wrap.narrow { width: min(880px, 100% - 40px); }

.sec { padding: clamp(58px, 7vw, 96px) 0; }
.sec--smoke { background: var(--smoke); }
.sec--ink { background: linear-gradient(135deg, var(--ink) 0%, var(--ink-2) 100%); color: #c6d6e6; }

.title { position: relative; text-align: center; font-size: clamp(28px, 3.6vw, 46px); padding-bottom: 22px; margin-bottom: 46px; }
.title::after { content: ""; position: absolute; left: 50%; transform: translateX(-50%); bottom: 0; width: 90px; height: 5px; border-radius: 999px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.title.on-dark { color: #fff; }
.title.on-dark::after { background: linear-gradient(90deg, #fff, var(--accent-2)); }

.btn { display: inline-flex; align-items: center; gap: 9px; padding: 14px 28px; border-radius: 999px; font-weight: 700; font-size: 15.5px; background: linear-gradient(135deg, var(--accent), #9f1239); color: #fff; box-shadow: 0 12px 28px rgba(225, 29, 72, .35); transition: transform .25s ease, box-shadow .25s ease; }
.btn:hover { transform: translateY(-2px); color: #fff; box-shadow: 0 18px 38px rgba(225, 29, 72, .45); }
.btn.ghost { background: transparent; border: 2px solid rgba(255, 255, 255, .55); box-shadow: none; }
.btn.ghost:hover { background: #fff; color: var(--ink); }

/* ------------------------------------------------------------ header -- */
.site-header { position: sticky; top: 0; z-index: 900; background: rgba(11, 31, 58, .93); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255, 255, 255, .08); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px 0; }
.brand img { height: 46px; width: auto; }
.nav-toggle { display: none; background: none; border: 1px solid rgba(255, 255, 255, .3); color: #fff; border-radius: 8px; padding: 9px 13px; font-size: 17px; cursor: pointer; }
.nav ul { display: flex; align-items: center; gap: 2px; list-style: none; margin: 0; padding: 0; }
.nav a { display: block; padding: 10px 13px; border-radius: 8px; color: #d7e4f2; font-weight: 600; font-size: 14.5px; }
.nav a:hover { background: rgba(255, 255, 255, .09); color: #fff; }
.nav .cta a { margin-left: 8px; padding: 10px 22px; border-radius: 999px; background: linear-gradient(135deg, var(--accent), #9f1239); color: #fff; box-shadow: 0 8px 20px rgba(225, 29, 72, .35); }

/* -------------------------------------------------------------- hero -- */
.hero { position: relative; padding: clamp(70px, 8vw, 118px) 0 clamp(60px, 7vw, 96px); overflow: hidden; color: #fff; text-align: center; }
.hero-bg { position: absolute; inset: 0; background: radial-gradient(1000px 500px at 14% 6%, rgba(225, 29, 72, .34), transparent 62%), radial-gradient(900px 520px at 86% 92%, rgba(29, 78, 216, .34), transparent 60%), linear-gradient(140deg, #071527 0%, #0b1f3a 48%, #12304f 100%); }
.hero .wrap { position: relative; z-index: 2; }
.eyebrow { display: inline-block; margin-bottom: 20px; padding: 8px 17px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, .26); background: rgba(255, 255, 255, .07); font-size: 12.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.hero h1 { color: #fff; font-size: clamp(32px, 5vw, 64px); line-height: 1.06; margin-bottom: 26px; }
.grad { background: linear-gradient(100deg, #fda4af, var(--accent-2)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
.chips { list-style: none; margin: 0 0 30px; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 11px; }
.chips li { display: inline-flex; align-items: center; gap: 9px; padding: 9px 17px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, .18); background: rgba(255, 255, 255, .06); font-size: 15px; font-weight: 500; }
.chips i { color: var(--accent-2); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-bottom: 46px; }
.stats { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.stats li { padding: 20px 12px; border-radius: 14px; border: 1px solid rgba(255, 255, 255, .14); background: rgba(255, 255, 255, .06); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.stats strong { display: block; font-size: clamp(24px, 2.8vw, 38px); font-weight: 800; line-height: 1; background: linear-gradient(120deg, #fda4af, var(--accent-2)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stats span { display: block; margin-top: 8px; font-size: 13px; font-weight: 600; color: #cfe0f0; }

/* ------------------------------------------------------------ notice -- */
.notice { margin: 0; padding: 18px 20px; text-align: center; background: #fff7ed; border-bottom: 1px solid #fed7aa; color: #7c2d12; font-weight: 600; }

/* ----------------------------------------------------------- content -- */
#about p { font-size: 17.5px; margin-bottom: 18px; }

.points { list-style: none; margin: 0; padding: 0; display: grid; gap: 13px; }
.points li { display: flex; gap: 13px; align-items: flex-start; padding: 17px 22px; border-radius: 12px; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .11); border-left: 4px solid var(--accent); color: #e2ecf6; font-weight: 600; transition: transform .3s ease, border-left-color .3s ease, background .3s ease; }
.points li:hover { transform: translateX(5px); border-left-color: var(--accent-2); background: rgba(255, 255, 255, .10); }
.points i { color: var(--accent-2); margin-top: 6px; }

/* ---------------------------------------------------------- speakers -- */
.spk-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.spk { display: flex; flex-direction: column; align-items: center; text-align: center; height: 100%; padding: 24px 16px 22px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; }
.spk:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(225, 29, 72, .35); }
.spk-photo { width: 124px; aspect-ratio: 1; margin-bottom: 15px; border-radius: 50%; overflow: hidden; background: var(--smoke); box-shadow: 0 8px 20px rgba(11, 31, 58, .14); }
.spk-photo img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.spk h3 { margin: 0 0 6px; font-size: 16.5px; }
.spk p { margin: 0; font-size: 13.5px; line-height: 1.5; }

/* ------------------------------------------------------------ attend -- */
.attend-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.attend-card { height: 100%; padding: 28px 24px; text-align: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: transform .3s ease, box-shadow .3s ease; }
.attend-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.attend-card i { display: grid; place-items: center; width: 58px; height: 58px; margin: 0 auto 16px; border-radius: 50%; font-size: 23px; color: #fff; background: linear-gradient(135deg, var(--accent), #9f1239); box-shadow: 0 10px 24px rgba(225, 29, 72, .3); }
.attend-card h3 { margin: 0; font-size: 16.5px; line-height: 1.45; }

.why { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.why li { display: flex; gap: 13px; align-items: flex-start; padding: 18px 22px; background: #fff; border: 1px solid var(--line); border-radius: 12px; font-weight: 600; color: var(--ink); box-shadow: var(--shadow-sm); }
.why i { color: var(--accent); margin-top: 5px; }

/* ------------------------------------------------------------- logos -- */
.logo-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.logo-tile { position: relative; display: grid; place-items: center; height: 130px; padding: 26px 16px 16px; background: #fff; border: 1px solid var(--line); border-radius: 12px; transition: transform .3s ease, box-shadow .3s ease; }
.logo-tile:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.logo-tile img { max-height: 74px; max-width: 100%; width: auto; object-fit: contain; }
.logo-tier { position: absolute; top: 8px; left: 8px; right: 8px; text-align: center; font-size: 10.5px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; color: var(--accent); }

.ps-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.ps-tile { border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); background: #fff; }
.ps-tile img { width: 100%; height: 200px; object-fit: cover; object-position: top center; transition: transform .4s ease; }
.ps-tile:hover img { transform: scale(1.05); }

/* ------------------------------------------------------------- venue -- */
.venue, .mag { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; padding: 26px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.mag { margin-top: 26px; }
.venue img, .mag img { border-radius: 12px; width: 100%; }
.venue h3, .mag h3 { font-size: 22px; }
.venue i, .mag i { color: var(--accent); }
.venue .btn, .mag .btn { margin-top: 16px; }

/* ----------------------------------------------------------- contact -- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.contact-card { padding: 26px 22px; text-align: center; border-radius: var(--radius); background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .14); }
.contact-card h3 { margin: 0 0 12px; font-size: 16px; color: #fda4af; }
.cc-name { margin: 0 0 8px; font-weight: 700; color: #fff; }
.contact-card p { margin: 0 0 5px; }
.contact-card a { color: #e2ecf6; font-weight: 600; }
.contact-card a:hover { color: var(--accent-2); }

/* ------------------------------------------------------------ footer -- */
.site-footer { background: #071527; color: #9db3c9; padding: 54px 0 26px; text-align: center; }
.f-logo { height: 52px; width: auto; margin: 0 auto 22px; }
.f-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 26px; margin-bottom: 22px; }
.f-nav a { color: #b9cadb; font-weight: 600; font-size: 15px; }
.f-nav a:hover { color: #fff; }
.social { display: flex; justify-content: center; gap: 11px; margin-bottom: 24px; }
.social a { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; background: rgba(255, 255, 255, .08); color: #cfe0f0; }
.social a:hover { background: var(--accent); color: #fff; }
.copy { margin: 0; font-size: 14px; color: #7e92a8; border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 22px; }

.to-top { position: fixed; right: 26px; bottom: 26px; z-index: 800; display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; color: #fff; background: linear-gradient(135deg, var(--accent), #9f1239); box-shadow: 0 10px 26px rgba(225, 29, 72, .42); opacity: 0; visibility: hidden; transform: translateY(10px); transition: .3s ease; }
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { color: #fff; transform: translateY(-3px); }

section[id], [id="top"] { scroll-margin-top: 92px; }

/* -------------------------------------------------------- responsive -- */
@media (max-width: 1100px) {
    .spk-grid { grid-template-columns: repeat(3, 1fr); }
    .logo-grid { grid-template-columns: repeat(4, 1fr); }
    .ps-grid { grid-template-columns: repeat(4, 1fr); }
    .stats { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 991px) {
    .nav-toggle { display: block; }
    .nav { position: absolute; left: 0; right: 0; top: 100%; background: #0b1f3a; border-top: 1px solid rgba(255, 255, 255, .08); max-height: 0; overflow: hidden; transition: max-height .35s ease; }
    .nav.open { max-height: 80vh; overflow-y: auto; }
    .nav ul { flex-direction: column; align-items: stretch; padding: 12px 20px 20px; }
    .nav .cta a { margin: 10px 0 0; text-align: center; }
    .attend-grid { grid-template-columns: repeat(2, 1fr); }
    .why { grid-template-columns: 1fr; }
    .venue, .mag { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
    body { font-size: 16px; }
    .spk-grid { grid-template-columns: repeat(2, 1fr); }
    .logo-grid { grid-template-columns: repeat(2, 1fr); }
    .ps-grid { grid-template-columns: repeat(2, 1fr); }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .attend-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* ---- about strip + discussion motif (images the capture did keep) ---- */
.about-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 42px; }
.about-strip img { width: 100%; height: 230px; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow); }

.has-motif { position: relative; overflow: hidden; }
.has-motif .motif {
    position: absolute; right: -60px; top: 50%; transform: translateY(-50%);
    width: 380px; max-width: 42%; border-radius: 50%;
    opacity: .12; filter: saturate(.4); pointer-events: none;
}
.has-motif .wrap { position: relative; z-index: 1; }

@media (max-width: 700px) {
    .about-strip { grid-template-columns: 1fr; }
    .about-strip img { height: 190px; }
    .has-motif .motif { display: none; }
}