:root {
    --footer-height: 78px;
    --mobile-leaderboard-height: 12rem;
    --text-main: #f5f8ff;
    --text-muted: rgba(245, 248, 255, 0.72);
    --line-glow: rgba(255, 223, 133, 0.68);
    --panel-bg: rgba(8, 18, 29, 0.72);
    --panel-border: rgba(255, 255, 255, 0.16);
}

* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
}

body {
    position: relative;
    overflow: hidden;
    color: var(--text-main);
    background: #030a11;
    font-family: "Space Mono", "Consolas", "Courier New", monospace;
}

.bg-image,
.bg-overlay {
    position: fixed;
    inset: 0;
}

.bg-image {
    background-image: url("/assets/nuclear-bg.jpg");
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    filter: contrast(1.08) saturate(1.15);
}

.bg-overlay {
    background:
        radial-gradient(circle at 45% 24%, rgba(31, 82, 62, 0.28) 0%, rgba(4, 14, 21, 0.08) 42%, rgba(2, 7, 10, 0.83) 78%),
        linear-gradient(180deg, rgba(4, 8, 12, 0.18) 0%, rgba(3, 8, 12, 0.89) 100%);
}

.page-header,
.page-main,
.page-footer {
    position: relative;
    z-index: 2;
}

.page-header {
    padding: 2.4rem 1rem 0;
    text-align: center;
}

.page-header h1 {
    margin: 0;
    font-family: "Orbitron", sans-serif;
    font-weight: 800;
    font-size: clamp(3rem, 11vw, 7.25rem);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #f9fbff;
    text-shadow:
        0 0 14px rgba(255, 245, 194, 0.38),
        0 0 30px rgba(20, 84, 63, 0.45),
        0 14px 34px rgba(0, 0, 0, 0.72);
}

.page-main {
    position: absolute;
    inset: 0;
    display: grid;
    place-content: center;
    gap: 0.8rem;
    text-align: center;
    padding: 1rem min(28vw, 320px) 1rem 1rem;
}

.respect-call {
    margin: 0;
    font-size: clamp(1.25rem, 4vw, 2.5rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-shadow: 0 4px 18px rgba(0, 0, 0, 0.9);
    animation: call-pulse 2.8s ease-in-out infinite;
}

.nickname-box {
    margin: 0 auto;
    width: min(460px, 90vw);
    padding: 0.78rem 0.96rem;
    border-radius: 12px;
    border: 1px solid var(--panel-border);
    background: var(--panel-bg);
    backdrop-filter: blur(4px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.26);
    text-align: left;
}

.nickname-box label {
    display: block;
    font-size: 0.8rem;
    letter-spacing: 0.06em;
    color: rgba(244, 248, 255, 0.9);
}

.nickname-box input {
    width: 100%;
    margin-top: 0.44rem;
    padding: 0.62rem 0.72rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: rgba(3, 9, 14, 0.76);
    color: #f8fbff;
    font-family: inherit;
    font-size: 0.95rem;
}

.nickname-box input:focus {
    outline: none;
    border-color: rgba(255, 224, 132, 0.82);
    box-shadow: 0 0 0 2px rgba(255, 224, 132, 0.26);
}

.nickname-box small {
    display: block;
    margin-top: 0.45rem;
    font-size: 0.74rem;
    letter-spacing: 0.04em;
    color: rgba(240, 245, 255, 0.72);
}

.connection-state {
    margin: 0;
    font-size: clamp(0.82rem, 1.8vw, 1rem);
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

.leaderboard-panel {
    position: fixed;
    right: 1.1rem;
    top: 50%;
    bottom: calc(var(--footer-height) + 0.95rem);
    width: min(290px, 26vw);
    border-radius: 12px;
    border: 1px solid var(--panel-border);
    background: rgba(4, 12, 19, 0.7);
    backdrop-filter: blur(6px);
    box-shadow: 0 14px 38px rgba(0, 0, 0, 0.4);
    padding: 0.62rem 0.64rem 0.58rem;
    z-index: 4;
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 0.44rem;
    contain: layout paint;
}

.leaderboard-panel h2 {
    margin: 0;
    font-size: 0.74rem;
    line-height: 1.35;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: rgba(245, 248, 255, 0.94);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.75);
}

.leaderboard-table-wrap {
    overflow: auto;
    min-height: 0;
}

.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
    letter-spacing: 0.02em;
}

.leaderboard-table th,
.leaderboard-table td {
    padding: 0.34rem 0.34rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.leaderboard-table th {
    text-transform: uppercase;
    font-size: 0.64rem;
    color: rgba(241, 246, 255, 0.72);
    font-weight: 700;
    text-align: left;
    position: sticky;
    top: 0;
    background: rgba(7, 16, 25, 0.95);
}

.leaderboard-table td:last-child,
.leaderboard-table th:last-child {
    text-align: right;
    width: 2.6rem;
}

.leaderboard-table td:first-child,
.leaderboard-table th:first-child {
    width: 3.3rem;
}

.leaderboard-table tbody tr:last-child td {
    border-bottom: none;
}

.leaderboard-table tbody tr:nth-child(odd) {
    background: rgba(255, 255, 255, 0.02);
}

.leaderboard-table td.nickname-cell {
    max-width: 138px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.leaderboard-table td.rank-cell {
    font-weight: 700;
}

.leaderboard-table .trophy {
    margin-right: 0.24rem;
}

.leaderboard-table tr.empty-row td {
    text-align: center;
    color: rgba(245, 248, 255, 0.72);
    padding: 0.78rem 0.44rem;
}

.mobile-f-button {
    display: none;
}

.hidden {
    display: none !important;
}

.captcha-modal {
    position: fixed;
    inset: 0;
    z-index: 9;
}

.captcha-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(1, 6, 10, 0.78);
    backdrop-filter: blur(2px);
}

.captcha-card {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: min(92vw, 420px);
    padding: 1rem 0.95rem 0.85rem;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(4, 13, 20, 0.96);
    box-shadow: 0 16px 34px rgba(0, 0, 0, 0.46);
}

.captcha-card h3 {
    margin: 0 0 0.52rem;
    font-size: 0.96rem;
    font-family: "Orbitron", sans-serif;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.captcha-card p {
    margin: 0 0 0.74rem;
    font-size: 0.8rem;
    color: rgba(245, 248, 255, 0.85);
}

#recaptcha-slot {
    min-height: 78px;
    display: grid;
    place-items: center;
}

.captcha-card button {
    margin-top: 0.74rem;
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 8px;
    background: rgba(7, 19, 29, 0.9);
    color: #f8fbff;
    padding: 0.52rem 0.7rem;
    font-family: inherit;
    font-size: 0.8rem;
    cursor: pointer;
}

.captcha-success {
    position: fixed;
    left: 50%;
    top: 1.15rem;
    transform: translateX(-50%);
    z-index: 10;
    width: min(90vw, 430px);
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    background: rgba(6, 17, 27, 0.95);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.captcha-success img {
    width: 100%;
    display: block;
    max-height: 230px;
    object-fit: cover;
}

.captcha-success p {
    margin: 0;
    padding: 0.68rem 0.8rem;
    font-size: 0.8rem;
    text-align: center;
    color: #f8fbff;
}

#effect-layer {
    position: fixed;
    inset: 0;
    z-index: 3;
    pointer-events: none;
    overflow: hidden;
    contain: strict;
}

.floating-item {
    position: absolute;
    bottom: calc(var(--footer-height) - 8px);
    transform-origin: center;
    will-change: transform, opacity;
    filter: drop-shadow(0 8px 14px rgba(0, 0, 0, 0.45));
}

.floating-item.lite {
    filter: none;
}

.floating-item.emoji {
    font-size: clamp(2rem, 4vw, 3.8rem);
    line-height: 1;
}

.floating-item.image img {
    width: clamp(56px, 9vw, 102px);
    height: auto;
    display: block;
}

.page-footer {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    height: var(--footer-height);
    display: grid;
    place-items: center;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    font-size: clamp(0.72rem, 1.8vw, 0.92rem);
    backdrop-filter: blur(2px);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.34);
}

.page-footer p {
    margin: 0;
    text-shadow: 0 0 12px rgba(2, 7, 12, 0.85);
}

@keyframes call-pulse {
    0%,
    100% {
        text-shadow:
            0 0 10px rgba(255, 255, 255, 0.12),
            0 4px 18px rgba(0, 0, 0, 0.9);
    }
    50% {
        text-shadow:
            0 0 20px var(--line-glow),
            0 4px 18px rgba(0, 0, 0, 0.9);
    }
}

@media (max-width: 980px) {
    .page-main {
        padding: 7.2rem 1rem calc(var(--footer-height) + 18rem);
    }

    .mobile-f-button {
        display: inline-flex;
        position: fixed;
        left: 50%;
        bottom: calc(var(--footer-height) + var(--mobile-leaderboard-height) + 1rem);
        transform: translateX(-50%);
        z-index: 6;
        width: 4rem;
        height: 4rem;
        border-radius: 999px;
        border: 1px solid rgba(255, 235, 170, 0.68);
        background:
            radial-gradient(circle at 32% 24%, rgba(255, 232, 162, 0.45) 0%, rgba(255, 214, 92, 0.1) 36%, rgba(4, 12, 21, 0.92) 100%),
            rgba(5, 12, 18, 0.9);
        color: #fcfeff;
        font-family: "Orbitron", sans-serif;
        font-size: 1.85rem;
        font-weight: 800;
        letter-spacing: 0.08em;
        box-shadow:
            0 8px 22px rgba(0, 0, 0, 0.46),
            0 0 18px rgba(255, 223, 133, 0.28);
        backdrop-filter: blur(4px);
        touch-action: manipulation;
    }

    .mobile-f-button:active {
        transform: translateX(-50%) scale(0.95);
    }

    .leaderboard-panel {
        left: 0.85rem;
        right: 0.85rem;
        top: auto;
        bottom: calc(var(--footer-height) + 0.68rem);
        width: auto;
        max-height: var(--mobile-leaderboard-height);
    }

    .leaderboard-table td.nickname-cell {
        max-width: 48vw;
    }
}