/* ---------- Theme ---------- */
:root {
    --bg: #07070a;
    --panel: rgba(255, 255, 255, 0.06);
    --panel-2: rgba(255, 255, 255, 0.04);
    --text: rgba(255, 255, 255, 0.92);
    --muted: rgba(255, 255, 255, 0.65);
    --stroke: rgba(255, 255, 255, 0.10);
    --gold: #d4af37;
    --gold-2: #f2d06b;
    --shadow: 0 18px 55px rgba(0, 0, 0, 0.55);
    --radius: 16px;
    --max: 1080px;

    --ease: cubic-bezier(.2, .8, .2, 1);
}

/* ---------- Base ---------- */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(900px 500px at 10% -10%, rgba(212, 175, 55, 0.12), transparent 55%),
        radial-gradient(700px 400px at 95% 5%, rgba(212, 175, 55, 0.09), transparent 45%),
        var(--bg);
    overflow-x: hidden;
}

/* Subtle animated “grain” overlay */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.08;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='260' height='260' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
    animation: grain 6s steps(6, end) infinite;
}

@keyframes grain {
    0% {
        transform: translate3d(0, 0, 0);
    }

    20% {
        transform: translate3d(-3%, 2%, 0);
    }

    40% {
        transform: translate3d(2%, -2%, 0);
    }

    60% {
        transform: translate3d(4%, 3%, 0);
    }

    80% {
        transform: translate3d(-2%, -3%, 0);
    }

    100% {
        transform: translate3d(0, 0, 0);
    }
}

/* ---------- Layout ---------- */
.container {
    width: min(var(--max), calc(100% - 40px));
    margin: 0 auto;
}

.section {
    padding: 72px 0;
}

.section--alt {
    background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.03), transparent);
    border-top: 1px solid var(--stroke);
    border-bottom: 1px solid var(--stroke);
}

.section__heading {
    margin-bottom: 22px;
}

.section__heading h2 {
    margin: 0 0 6px;
    letter-spacing: 0.2px;
}

.section__heading p {
    margin: 0;
    color: var(--muted);
    max-width: 70ch;
}

/* ---------- Topbar / Nav ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(14px);
    background: rgba(7, 7, 10, 0.66);
    border-bottom: 1px solid var(--stroke);
}

.topbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    font-weight: 650;
    letter-spacing: 0.2px;
}

.brand__mark {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: linear-gradient(180deg, rgba(212, 175, 55, 0.28), rgba(212, 175, 55, 0.08));
    border: 1px solid rgba(212, 175, 55, 0.35);
    color: var(--gold-2);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.10);
}

.nav {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav__link {
    position: relative;
    text-decoration: none;
    color: var(--muted);
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid transparent;
    transition: 180ms var(--ease);
}

.nav__link:hover {
    color: var(--text);
    border-color: rgba(212, 175, 55, 0.25);
    background: rgba(212, 175, 55, 0.08);
    transform: translateY(-1px);
}

.nav__link.active {
    color: var(--text);
    border-color: rgba(212, 175, 55, 0.35);
    background: rgba(212, 175, 55, 0.10);
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--stroke);
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: rgba(255, 255, 255, 0.82);
    margin: 5px auto;
    border-radius: 2px;
    transition: 220ms var(--ease);
}

.nav-toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
    transform: translateX(-6px);
}

.nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: clamp(520px, 70vh, 760px);
    display: flex;
    align-items: center;
    background-image: var(--hero-image);
    background-size: cover;
    background-position: center;
    border-bottom: 1px solid var(--stroke);
    overflow: hidden;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(0, 0, 0, 0.76), rgba(0, 0, 0, 0.35) 60%, rgba(0, 0, 0, 0.68)),
        radial-gradient(900px 600px at 20% 25%, rgba(212, 175, 55, 0.15), transparent 60%);
}

/* animated “light sweep” */
.hero::after {
    content: "";
    position: absolute;
    inset: -60px -40%;
    background: linear-gradient(120deg,
            transparent 35%,
            rgba(242, 208, 107, 0.10) 48%,
            transparent 62%);
    transform: translateX(-20%) rotate(6deg);
    animation: sweep 7s var(--ease) infinite;
    pointer-events: none;
}

@keyframes sweep {
    0% {
        transform: translateX(-35%) rotate(6deg);
        opacity: 0.55;
    }

    50% {
        transform: translateX(35%) rotate(6deg);
        opacity: 0.75;
    }

    100% {
        transform: translateX(90%) rotate(6deg);
        opacity: 0.55;
    }
}

/* floating accent blobs */
.hero__accents {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.9;
    filter: blur(0.2px);
}

.accent {
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 999px;
    background: radial-gradient(circle at 30% 30%, rgba(212, 175, 55, 0.22), transparent 60%);
    border: 1px solid rgba(212, 175, 55, 0.10);
    animation: float 9s var(--ease) infinite;
}

.accent--1 {
    left: -160px;
    top: -130px;
    animation-duration: 10.5s;
}

.accent--2 {
    right: -200px;
    top: 20%;
    animation-duration: 12.5s;
}

.accent--3 {
    left: 10%;
    bottom: -220px;
    animation-duration: 11.5s;
}

@keyframes float {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
    }

    50% {
        transform: translate3d(18px, -12px, 0) scale(1.03);
    }

    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }
}

.hero__content {
    position: relative;
    padding: 72px 0;
}

.hero__title {
    margin: 0 0 10px;
    font-size: clamp(34px, 6vw, 64px);
    line-height: 1.05;
    letter-spacing: 0.4px;
    text-shadow: 0 18px 60px rgba(0, 0, 0, 0.7);
}

.hero__subtitle {
    margin: 0 0 22px;
    max-width: 62ch;
    color: rgba(255, 255, 255, 0.78);
    font-size: clamp(14px, 2.1vw, 18px);
}

.hero__cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero__fade {
    position: absolute;
    inset: auto 0 0 0;
    height: 90px;
    background: linear-gradient(180deg, transparent, var(--bg));
}

/* ---------- Components ---------- */
.card {
    position: relative;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035));
    border: 1px solid var(--stroke);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
    transition: transform 220ms var(--ease), border-color 220ms var(--ease), background 220ms var(--ease);
    overflow: hidden;
}

/* subtle animated top sheen on hover */
.card::before {
    content: "";
    position: absolute;
    inset: -40% -30%;
    background: linear-gradient(120deg, transparent 45%, rgba(242, 208, 107, 0.10) 52%, transparent 62%);
    transform: translateX(-30%);
    opacity: 0;
    transition: opacity 220ms var(--ease);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(212, 175, 55, 0.22);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.035));
}

.card:hover::before {
    opacity: 1;
    animation: sheen 1.2s var(--ease) 1;
}

@keyframes sheen {
    from {
        transform: translateX(-30%);
    }

    to {
        transform: translateX(35%);
    }
}

.muted {
    color: var(--muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 11px 14px;
    border-radius: 14px;
    text-decoration: none;
    border: 1px solid transparent;
    transition: 180ms var(--ease);
    font-weight: 650;
    will-change: transform;
}

.btn--primary {
    background: linear-gradient(180deg, rgba(212, 175, 55, 0.98), rgba(212, 175, 55, 0.72));
    color: #0b0b10;
    border-color: rgba(242, 208, 107, 0.55);
    box-shadow: 0 18px 50px rgba(212, 175, 55, 0.10);
}

.btn--primary:hover {
    filter: brightness(1.03);
    transform: translateY(-2px);
}

.btn--ghost {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.14);
    color: var(--text);
}

.btn--ghost:hover {
    border-color: rgba(212, 175, 55, 0.30);
    background: rgba(212, 175, 55, 0.08);
    transform: translateY(-2px);
}

.grid {
    display: grid;
    gap: 16px;
}

.grid.sponsors {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.sponsor {
    display: grid;
    place-items: center;
    min-height: 120px;
    text-decoration: none;
    padding: 20px;
}

.sponsor img {
    max-width: 190px;
    max-height: 64px;
    width: auto;
    height: auto;
    filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.5));
    opacity: 0.92;
    transition: transform 220ms var(--ease), opacity 220ms var(--ease);
}

.sponsor:hover img {
    transform: scale(1.04);
    opacity: 1;
}

.note {
    margin-top: 14px;
    color: var(--muted);
}

.note a {
    color: var(--gold-2);
    text-decoration: none;
    border-bottom: 1px dashed rgba(242, 208, 107, 0.5);
}

.note a:hover {
    border-bottom-color: rgba(242, 208, 107, 0.9);
}

.media {
    padding: 0;
    overflow: hidden;
}

.media img {
    width: 100%;
    display: block;
    aspect-ratio: 16/9;
    object-fit: cover;
    transform: scale(1.01);
    transition: transform 700ms var(--ease), filter 700ms var(--ease);
    filter: saturate(1.02) contrast(1.02);
}

.media:hover img {
    transform: scale(1.05);
}

/* ---------- Reveal-on-scroll (JS adds .reveal + .is-visible) ---------- */
.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 650ms var(--ease), transform 650ms var(--ease);
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Page templates ---------- */
.page {
    min-height: 70vh;
}

.page-hero {
    padding: 48px 0 12px;
}

.page-hero h1 {
    margin: 0 0 8px;
}

.page-hero p {
    margin: 0;
}

.list {
    margin: 0;
    padding-left: 18px;
    color: rgba(255, 255, 255, 0.82);
}

.list li {
    margin: 10px 0;
}

.timeline {
    margin-top: 8px;
    display: grid;
    gap: 14px;
}

.timeline__item {
    display: grid;
    grid-template-columns: 14px 1fr;
    gap: 12px;
    align-items: start;
}

.timeline__dot {
    width: 10px;
    height: 10px;
    margin-top: 5px;
    border-radius: 999px;
    background: rgba(212, 175, 55, 0.9);
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.15);
}

/* ---------- Footer ---------- */
.footer {
    padding: 26px 0;
    border-top: 1px solid var(--stroke);
    background: rgba(255, 255, 255, 0.02);
}

.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--muted);
}

.to-top {
    text-decoration: none;
    color: var(--gold-2);
    border-bottom: 1px dashed rgba(242, 208, 107, 0.45);
}

.to-top:hover {
    border-bottom-color: rgba(242, 208, 107, 0.95);
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .grid.sponsors {
        grid-template-columns: 1fr;
    }

    .grid.contact {
        grid-template-columns: 1fr;
    }

    .grid.two {
        grid-template-columns: 1fr;
    }

    .nav-toggle {
        display: block;
    }

    .nav {
        position: absolute;
        right: 20px;
        top: 66px;
        width: min(320px, calc(100vw - 40px));
        padding: 10px;
        border-radius: 16px;
        border: 1px solid var(--stroke);
        background: rgba(7, 7, 10, 0.92);
        box-shadow: var(--shadow);
        display: none;
        flex-direction: column;
        align-items: stretch;
    }

    .nav.open {
        display: flex;
    }

    .nav__link {
        padding: 12px 12px;
    }
}

/* Respect reduced-motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }

    html {
        scroll-behavior: auto;
    }
}