:root {
    --font-scale: 1;
    --ink: #142333;
    --muted: #5d7184;
    --line: rgba(255, 255, 255, .62);
    --cyan: #087e9a;
    --red: #d63d61;
    --glass: rgba(255, 255, 255, .46);
    --glass-strong: rgba(255, 255, 255, .68);
}

* { box-sizing: border-box; }

body {
    display: grid;
    min-height: 100vh;
    margin: 0;
    padding: 24px;
    place-items: center;
    overflow-x: hidden;
    background: linear-gradient(135deg, #dff5f7 0%, #eef4fa 48%, #f9e8ef 100%);
    color: var(--ink);
    font-family: 'Zen Kaku Gothic New', 'Space Grotesk', sans-serif;
    font-size: calc(16px * var(--font-scale));
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    opacity: .4;
    background: radial-gradient(circle at 18% 18%, rgba(8, 126, 154, .34), transparent 27%), radial-gradient(circle at 82% 78%, rgba(214, 61, 97, .22), transparent 30%), linear-gradient(rgba(31, 91, 119, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(31, 91, 119, .05) 1px, transparent 1px);
    background-size: 42px 42px;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background: rgba(255, 255, 255, .12);
    backdrop-filter: blur(70px);
}

.home {
    width: min(800px, 100%);
    padding: clamp(28px, 8vw, 64px);
    border: 1px solid var(--line);
    border-radius: 24px;
    background: var(--glass);
    box-shadow: 0 24px 70px rgba(20, 65, 84, .16), inset 0 1px 0 rgba(255, 255, 255, .7);
    backdrop-filter: blur(24px) saturate(125%);
}

.home__header { display: grid; gap: 10px; }
.home__header img { width: 700%; max-width: 650px; }
.eyebrow { margin: 0; color: var(--red); font: 700 12px / 1.2 'Space Grotesk', sans-serif; letter-spacing: .12em; }
h1, h2 { margin: 0; font-family: 'Space Grotesk', sans-serif; }
h1 { font-size: clamp(42px, 10vw, 68px); line-height: .95; }

.language-select { display: flex; align-items: center; gap: 8px; margin-top: 18px; color: var(--muted); font-size: 13px; }
select { padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--glass-strong); color: var(--ink); }
.home__actions { display: grid; gap: 10px; margin-top: 42px; }
.version-footer { position: fixed; right: 14px; bottom: 10px; }
.version-button { padding: 5px 8px; border: 0; background: transparent; color: var(--muted); font: 500 11px 'Space Grotesk', sans-serif; opacity: .72; cursor: pointer; }
.version-button:hover, .version-button:focus-visible { color: var(--ink); opacity: 1; }
.settings-list { display: grid; gap: 12px; margin-top: 24px; }
.setting { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 12px 14px; border: 1px solid rgba(255, 255, 255, .62); border-radius: 10px; background: rgba(255, 255, 255, .24); color: var(--ink); }

.button { display: block; padding: 13px 16px; border: 1px solid rgba(255, 255, 255, .7); border-radius: 10px; background: rgba(255, 255, 255, .34); color: #14506a; font: 600 14px 'Space Grotesk', sans-serif; text-align: center; text-decoration: none; cursor: pointer; box-shadow: 0 8px 20px rgba(20, 65, 84, .08), inset 0 1px 0 rgba(255, 255, 255, .7); backdrop-filter: blur(12px); }
.button:hover, .button:focus-visible { background: rgba(255, 255, 255, .62); }
.button--primary { border-color: rgba(214, 61, 97, .7); background: rgba(214, 61, 97, .78); color: white; }
.button--primary:hover, .button--primary:focus-visible { background: rgba(214, 61, 97, .92); }
.mode-options { display: grid; gap: 10px; margin-top: 24px; }
.account-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 8px; margin-top: 20px; }
.account-form input { min-width: 0; padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--glass-strong); color: var(--ink); font: inherit; }
.admin-login-form { display: grid; gap: 10px; margin-top: 20px; }
.admin-login-form label { color: var(--muted); font-size: 13px; }
.admin-login-form input { width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--glass-strong); color: var(--ink); font: inherit; }
.admin-panel { width: min(1100px, 100%); }
.admin-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; flex-wrap: wrap; margin: 14px 0; }
.admin-actions span { margin-right: auto; color: var(--muted); font-size: 13px; }
.admin-actions .button { padding: 9px 12px; }
.admin-actions .button:disabled { cursor: not-allowed; opacity: .48; }
.admin-table-wrap { overflow-x: auto; margin-top: 16px; }
.admin-table { width: 100%; border-collapse: collapse; color: var(--ink); font-size: 13px; text-align: left; }
.admin-table th, .admin-table td { padding: 10px 8px; border-bottom: 1px solid rgba(20, 35, 51, .12); white-space: nowrap; }
.admin-table th { color: var(--muted); font-size: 11px; }
.admin-table td:last-child { display: flex; gap: 6px; }
.admin-table .button { padding: 7px 9px; font-size: 12px; }
.admin-table .button[aria-pressed="true"] { outline: 2px solid var(--cyan); outline-offset: 1px; }
.admin-logout { margin-top: 16px; }
.scoreboard-message { min-height: 1.5em; margin: 10px 0; color: var(--red) !important; }
.scoreboard-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 18px; }
.scoreboard-columns section { min-width: 0; padding: 14px; border: 1px solid rgba(255, 255, 255, .62); border-radius: 10px; background: rgba(255, 255, 255, .24); }
.scoreboard-columns h3 { margin: 0 0 10px; color: var(--cyan); font: 600 15px 'Space Grotesk', sans-serif; }
.scoreboard-columns ol { margin: 0; padding-left: 24px; color: var(--muted); line-height: 1.8; }
.credit-actions { display: grid; gap: 10px; margin-top: 20px; }
.credit-project { margin: 4px 0 18px; color: var(--cyan); font: 600 20px 'Space Grotesk', sans-serif; }
.credit-list { display: grid; gap: 12px; margin: 0; }
.credit-list > div { display: grid; gap: 3px; padding-bottom: 10px; border-bottom: 1px solid rgba(255, 255, 255, .38); }
.credit-list dt { color: var(--muted); font-size: 12px; letter-spacing: .04em; }
.credit-list dd { margin: 0; color: var(--ink); line-height: 1.5; }

@media (max-width: 640px) {
    .account-form, .scoreboard-columns { grid-template-columns: 1fr; }
}

.modal[hidden] { display: none; }
.modal { position: fixed; inset: 0; z-index: 10; display: grid; place-items: center; padding: 24px; }
.modal__backdrop { position: absolute; inset: 0; background: rgba(20, 35, 51, .28); backdrop-filter: blur(10px); }
.modal__panel { position: relative; width: min(800px, 100%); padding: clamp(28px, 7vw, 44px); border: 1px solid rgba(255, 255, 255, .72); border-radius: 20px; background: rgba(255, 255, 255, .62); box-shadow: 0 24px 70px rgba(20, 35, 51, .2), inset 0 1px 0 rgba(255, 255, 255, .8); backdrop-filter: blur(28px) saturate(130%); }
.modal__panel--scrollable { min-height: 0; max-height: calc(100vh - 48px); max-height: calc(100dvh - 48px); overflow-x: hidden; overflow-y: auto; overscroll-behavior-y: contain; -webkit-overflow-scrolling: touch; scrollbar-width: none; -ms-overflow-style: none; }
.modal__panel--scrollable::-webkit-scrollbar { display: none; }
.tutorial-panel { max-height: calc(100vh - 48px); overflow-y: auto; }
.modal__panel h2 { margin: 8px 0 14px; color: var(--cyan); font-size: 32px; }
.modal__panel p, .modal__panel li { color: var(--muted); line-height: 1.8; }
.modal__panel ul { margin: 18px 0 0; padding-left: 20px; }
.rules-steps { display: grid; gap: 14px; margin: 22px 0 0; padding: 0; list-style: none; counter-reset: rules; }
.rules-steps li { position: relative; display: grid; gap: 3px; padding: 13px 15px 13px 45px; border: 1px solid rgba(255, 255, 255, .62); border-radius: 10px; background: rgba(255, 255, 255, .24); counter-increment: rules; }
.rules-steps li::before { content: counter(rules); position: absolute; top: 13px; left: 15px; color: var(--red); font: 700 18px 'Space Grotesk', sans-serif; }
.rules-steps b { color: var(--ink); }
.tutorial-list { display: grid; gap: 14px; margin: 22px 0 0; padding: 0; list-style: none; counter-reset: tutorial; }
.tutorial-list li { position: relative; display: grid; gap: 3px; padding: 13px 15px 13px 45px; border: 1px solid rgba(255, 255, 255, .62); border-radius: 10px; background: rgba(255, 255, 255, .24); counter-increment: tutorial; }
.tutorial-list li::before { content: counter(tutorial); position: absolute; top: 13px; left: 15px; color: var(--red); font: 700 18px 'Space Grotesk', sans-serif; }
.tutorial-list b { color: var(--ink); }
.modal__close { position: absolute; top: 12px; right: 14px; border: 0; border-radius: 50%; background: rgba(255, 255, 255, .35); color: var(--muted); font-size: 28px; line-height: 1; cursor: pointer; }
body.modal-open { overflow: hidden; }