/* Kunta — Community Landing CSS (cacheable, served with long max-age)
   Includes: minimal grid/flex utilities replacing Bootstrap, plus landing styles. */

/* ============================================================
   1. Fallback metrics adjuster (reduces CLS while Inter loads).
      Inter is requested asynchronously from Google Fonts.
   ============================================================ */
@font-face {
    font-family: 'InterFallback';
    src: local('Arial');
    size-adjust: 107%;
    ascent-override: 90%;
    descent-override: 22%;
    line-gap-override: 0%;
}

/* ============================================================
   2. Reset & base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: 'Inter', 'InterFallback', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #fff;
    color: #1e1b4b;
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
}
a { text-decoration: none; color: inherit; }
img, svg, video { max-width: 100%; height: auto; display: block; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--pc, #6366f1); outline-offset: 2px; border-radius: 4px; }

/* ============================================================
   3. Mini grid + flex utilities (Bootstrap subset)
   ============================================================ */
.container {
    width: 100%;
    max-width: 1140px;
    margin-inline: auto;
    padding-inline: 1rem;
}
.row {
    display: flex;
    flex-wrap: wrap;
    margin-inline: -.75rem;
}
.row > [class*="col-"] { padding-inline: .75rem; }
.col-6   { flex: 0 0 50%; max-width: 50%; }
.col-md-6, .col-md-4, .col-lg-3, .col-lg-4, .col-lg-7, .col-lg-8 { flex: 0 0 100%; max-width: 100%; }

@media (min-width: 768px) {
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-4 { flex: 0 0 33.3333%; max-width: 33.3333%; }
}
@media (min-width: 992px) {
    .col-lg-3 { flex: 0 0 25%;       max-width: 25%; }
    .col-lg-4 { flex: 0 0 33.3333%;  max-width: 33.3333%; }
    .col-lg-7 { flex: 0 0 58.3333%;  max-width: 58.3333%; }
    .col-lg-8 { flex: 0 0 66.6666%;  max-width: 66.6666%; }
    .d-none.d-md-inline { display: inline !important; }
}

.d-flex          { display: flex !important; }
.d-inline-flex   { display: inline-flex !important; }
.d-none          { display: none !important; }
@media (min-width: 768px) { .d-md-inline { display: inline !important; } }

.flex-wrap       { flex-wrap: wrap !important; }
.flex-shrink-0   { flex-shrink: 0 !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-center  { justify-content: center !important; }
.align-items-center      { align-items: center !important; }
.text-center     { text-align: center !important; }
.text-end        { text-align: right !important; }
.text-start      { text-align: left !important; }
.text-truncate   { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.text-white      { color: #fff !important; }
.text-muted      { color: #6b7280 !important; }
.fw-bold         { font-weight: 700; }

.gap-1 { gap: .25rem; } .gap-2 { gap: .5rem; } .gap-3 { gap: 1rem; } .gap-4 { gap: 1.5rem; }
.g-3 > [class*="col-"] { padding-bottom: 1rem; } .g-4 > [class*="col-"] { padding-bottom: 1.5rem; }
.mb-1 { margin-bottom: .25rem; } .mb-2 { margin-bottom: .5rem; } .mb-3 { margin-bottom: 1rem; } .mb-4 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: .5rem; } .mt-3 { margin-top: 1rem; } .mt-4 { margin-top: 1.5rem; }
.me-1 { margin-right: .25rem; }
.mx-auto { margin-inline: auto; }
.p-3 { padding: 1rem; } .p-4 { padding: 1.5rem; } .py-4 { padding-block: 1.5rem; }

.card { background:#fff; border-radius:1rem; }

/* ============================================================
   4. Navbar
   ============================================================ */
.cm-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: .85rem 0;
    transition: background .35s, padding .35s, box-shadow .35s;
}
.cm-nav.scrolled {
    background: rgba(255,255,255,.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: .5rem 0;
    box-shadow: 0 1px 15px rgba(0,0,0,.06);
}
.cm-nav .brand {
    font-weight: 800; font-size: 1.1rem; color: #fff;
    display: flex; align-items: center; gap: .5rem;
    transition: color .3s;
}
.cm-nav.scrolled .brand { color: var(--pc); }
.cm-nav .brand img { height: 32px; width: 32px; border-radius: .5rem; object-fit: cover; }
.cm-nav .nav-link-top {
    color: rgba(255,255,255,.85); font-size: .82rem; font-weight: 600;
    transition: color .3s;
}
.cm-nav .nav-link-top:hover { color: #fff; }
.cm-nav.scrolled .nav-link-top { color: #4b5563; }
.cm-nav.scrolled .nav-link-top:hover { color: var(--pc); }
.cm-nav .nav-cta {
    background: rgba(255,255,255,.2);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    color: #fff; font-weight: 700; font-size: .82rem;
    padding: .55rem 1.5rem; border-radius: 2rem;
    transition: background .25s, color .25s, transform .25s, box-shadow .25s;
    border: 1px solid rgba(255,255,255,.35);
    min-height: 44px; display: inline-flex; align-items: center;
}
.cm-nav.scrolled .nav-cta { background: var(--pc); color: #fff; border-color: var(--pc); }
.cm-nav .nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(0,0,0,.15); background: #fff; color: var(--pc); }
.cm-nav.scrolled .nav-cta:hover { background: var(--pc); color: #fff; box-shadow: 0 4px 15px rgba(99,102,241,.25); }

/* ============================================================
   5. Hero
   ============================================================ */
.cm-hero {
    min-height: auto; padding: 7rem 0 3.5rem;
    display: flex; align-items: center;
    position: relative; overflow: hidden;
    background: linear-gradient(135deg, var(--pc) 0%, #1e1b4b 100%);
}
.cm-hero::before {
    content: ''; position: absolute; top: -20%; right: -10%;
    width: 500px; height: 500px;
    background: radial-gradient(circle, var(--sc) 0%, transparent 70%);
    opacity: .12; z-index: 0;
}
.cm-hero::after {
    content: ''; position: absolute; bottom: -15%; left: 20%;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,.08) 0%, transparent 70%);
    z-index: 0;
}
.cm-hero.has-banner::before, .cm-hero.has-banner::after { display: none; }
.cm-hero-bg { position: absolute; inset: 0; z-index: 0; }
.cm-hero-bg picture, .cm-hero-bg .layer-cover {
    position: absolute; inset: -20px;
    width: calc(100% + 40px); height: calc(100% + 40px);
}
.cm-hero-bg img.layer-cover {
    width: 100%; height: 100%;
    object-fit: cover; object-position: center;
    filter: blur(6px) brightness(.7);
    transform: scale(1.05);
}
.cm-hero-bg .layer-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(135deg, color-mix(in srgb, var(--pc) 90%, transparent) 0%, color-mix(in srgb, var(--pc) 80%, transparent) 40%, rgba(30,27,75,.78) 100%);
}
.cm-hero > .container, .cm-hero h1, .cm-hero p, .cm-hero div { position: relative; z-index: 1; }
.cm-hero h1 {
    font-size: 3.2rem; font-weight: 900; color: #fff;
    line-height: 1.08; letter-spacing: -.02em;
    text-shadow: 0 2px 20px rgba(0,0,0,.15);
}
.cm-hero-loc { font-size: .82rem; color: rgba(255,255,255,.85); margin-bottom: .5rem; }
.cm-hero-sub { font-size: 1.1rem; color: rgba(255,255,255,.92); max-width: 520px; line-height: 1.6; }

.cm-stat-bar {
    display: inline-flex; gap: 0; margin-top: 1.5rem;
    background: rgba(255,255,255,.1);
    -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
    border-radius: .75rem; border: 1px solid rgba(255,255,255,.15);
    overflow: hidden;
}
.cm-stat-item { text-align: center; padding: .7rem 1.2rem; }
.cm-stat-item:not(:last-child) { border-right: 1px solid rgba(255,255,255,.12); }
.cm-stat-v { font-size: 1.4rem; font-weight: 900; color: #fff; line-height: 1; }
.cm-stat-l {
    font-size: .58rem; color: rgba(255,255,255,.72); font-weight: 600;
    text-transform: uppercase; letter-spacing: .06em; margin-top: .15rem;
}

.cm-btn {
    display: inline-flex; align-items: center; gap: .4rem;
    padding: .85rem 2rem; border-radius: 2rem;
    font-weight: 700; font-size: .95rem;
    transition: transform .2s, box-shadow .2s, background .2s, color .2s;
    min-height: 48px; border: 0;
}
.cm-btn-fill  { background: #fff; color: var(--pc); }
.cm-btn-fill:hover  { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,.2); color: var(--pc); }
.cm-btn-ghost { border: 2px solid rgba(255,255,255,.55); color: #fff; background: transparent; }
.cm-btn-ghost:hover { background: rgba(255,255,255,.12); color: #fff; }
.cm-btn-color { background: var(--pc); color: #fff; }
.cm-btn-color:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(99,102,241,.25); color: #fff; }

/* ============================================================
   6. Sections
   ============================================================ */
.cm-section { padding: 5rem 0; }
.cm-section-alt { background: #f8f9fb; }
.cm-section-title {
    font-size: 1.8rem; font-weight: 800;
    margin-bottom: .4rem; letter-spacing: -.02em;
    color: #111827;
}
.cm-section-desc {
    font-size: .95rem; color: #4b5563; max-width: 550px; line-height: 1.6;
}
.cm-section-badge {
    display: inline-flex; align-items: center; gap: .3rem;
    font-size: .7rem; font-weight: 700;
    color: var(--pc);
    text-transform: uppercase; letter-spacing: .08em;
    margin-bottom: .5rem;
}
.cm-section-badge svg, .cm-section-badge i { width: .8rem; height: .8rem; }

/* Event card */
.cm-ecard {
    background: #fff; border-radius: 1rem; overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,.05);
    transition: transform .3s cubic-bezier(.4,0,.2,1), box-shadow .3s;
    height: 100%;
}
.cm-ecard:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,0,0,.1); }
.cm-ecard .img-wrap { overflow: hidden; aspect-ratio: 16/9; }
.cm-ecard .img-wrap img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .4s;
}
.cm-ecard:hover .img-wrap img { transform: scale(1.04); }
.cm-ecard h3 { font-size: .9rem; font-weight: 700; color: #1e1b4b; margin: 0; }

.cm-event-date {
    text-align: center; flex-shrink: 0;
    min-width: 44px; padding: .3rem .5rem;
    background: rgba(99,102,241,.08); border-radius: .5rem;
}
.cm-event-day  { font-weight: 700; font-size: 1.1rem; color: var(--pc); line-height: 1; }
.cm-event-mo   { font-size: .52rem; color: var(--pc); text-transform: uppercase; font-weight: 700; }

/* Speaker card */
.cm-sp {
    text-align: center; padding: 1.5rem 1rem;
    background: #fff; border-radius: 1rem;
    box-shadow: 0 1px 4px rgba(0,0,0,.04);
    transition: transform .25s, box-shadow .25s;
    height: 100%;
}
.cm-sp:hover { transform: translateY(-5px); box-shadow: 0 12px 30px rgba(0,0,0,.08); }
.cm-sp-avatar {
    width: 80px; height: 80px; border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(99,102,241,.12);
    margin: 0 auto .75rem;
    transition: border-color .2s;
    background: #f3f4f6;
}
.cm-sp:hover .cm-sp-avatar { border-color: var(--pc); }
.cm-sp h3 { font-size: .88rem; font-weight: 700; color: #1e1b4b; margin: 0; }

.cm-tag {
    font-size: .58rem; font-weight: 600;
    padding: .15rem .5rem; border-radius: 1rem;
    background: rgba(99,102,241,.08); color: var(--pc);
}

/* Photo grid */
.cm-photos { display: grid; grid-template-columns: repeat(4, 1fr); gap: .6rem; }
.cm-photos img {
    width: 100%; aspect-ratio: 4/3; object-fit: cover;
    border-radius: .75rem;
    transition: transform .35s, box-shadow .35s;
    cursor: pointer; background: #f3f4f6;
}
.cm-photos img:hover { transform: scale(1.03); box-shadow: 0 8px 20px rgba(0,0,0,.12); }

/* CTA */
.cm-cta {
    background: linear-gradient(135deg, var(--pc), color-mix(in srgb, var(--pc) 70%, #1e1b4b));
    border-radius: 1.5rem; padding: 4rem 2rem;
    text-align: center; position: relative; overflow: hidden;
}
.cm-cta::before {
    content: ''; position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 30% 70%, rgba(245,158,11,.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 25%, rgba(255,255,255,.08) 0%, transparent 45%);
}
.cm-cta > * { position: relative; z-index: 1; }
.cm-cta h2 { color: #fff; font-weight: 800; margin-bottom: .5rem; font-size: 2rem; }
.cm-cta p  { color: rgba(255,255,255,.92); margin: 0 auto 1.5rem; max-width: 500px; }

/* Sponsors */
.cm-sponsor {
    height: 36px; max-width: 110px;
    object-fit: contain;
    filter: grayscale(50%); opacity: .7;
    transition: filter .2s, opacity .2s;
}
.cm-sponsor:hover { filter: grayscale(0); opacity: 1; }

/* Footer */
.cm-footer {
    background: #1e1b4b;
    color: rgba(255,255,255,.78);   /* WCAG AA contrast 7:1 */
    padding: 2rem 0; font-size: .82rem;
}
.cm-footer a { color: rgba(255,255,255,.92); }
.cm-footer a:hover { color: #fff; text-decoration: underline; }

/* Rules card */
.cm-rules {
    background: #fff;
    border-radius: 1rem;
    box-shadow: 0 1px 4px rgba(0,0,0,.05);
    padding: 1.5rem;
    font-size: .92rem; color: #374151; line-height: 1.8;
    white-space: pre-line;
}

/* Verified badge */
.cm-verified { color: var(--pc); font-size: .72rem; vertical-align: middle; }

/* Generic helpers used in inline */
.cm-text-sm { font-size: .72rem; color: #6b7280; }

/* ============================================================
   7. Mobile
   ============================================================ */
@media (max-width: 767.98px) {
    .cm-hero h1 { font-size: 2rem; }
    .cm-hero { padding: 5.5rem 0 2.5rem; }
    .cm-stat-bar { flex-wrap: wrap; gap: 0; border-radius: .75rem; }
    .cm-stat-item { padding: .75rem 1rem; flex: 1; min-width: 0; }
    .cm-stat-v { font-size: 1.3rem; }
    .cm-stat-l { font-size: .55rem; }
    .cm-photos { grid-template-columns: repeat(2, 1fr); }
    .cm-section { padding: 3rem 0; }
    .cm-section-title { font-size: 1.4rem; }
    .cm-cta { padding: 2.5rem 1.5rem; border-radius: 1rem; }
    .cm-cta h2 { font-size: 1.5rem; }
}

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