:root {
    color-scheme: dark;
    --bg: radial-gradient(circle at 15% 15%, #190820, #02020a 70%);
    --panel: rgba(5, 7, 18, 0.9);
    --border: rgba(255, 255, 255, 0.08);
    --accent: #69d6ff;
    --accent-2: #ff7fd6;
    --accent-soft: rgba(105, 214, 255, 0.35);
    --accent-soft-2: rgba(255, 127, 214, 0.35);
    --text: #fdfdff;
    --muted: #a3acc8;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background:
        radial-gradient(circle at 10% 0%, rgba(144, 202, 249, 0.08), transparent 55%),
        radial-gradient(circle at 100% 100%, rgba(187, 134, 252, 0.1), transparent 60%),
        var(--bg);
    color: var(--text);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 1.5rem;
    overflow-x: hidden;
}

.grid {
    flex: 1;
}

body::before,
body::after {
    content: "";
    position: fixed;
    inset: -20%;
    background:
        repeating-linear-gradient(
            120deg,
            rgba(255, 255, 255, 0.03) 0,
            rgba(255, 255, 255, 0.03) 1px,
            transparent 1px,
            transparent 4px
        );
    opacity: 0.35;
    mix-blend-mode: soft-light;
    animation: scan-lines 12s linear infinite;
    pointer-events: none;
}

body::after {
    background:
        radial-gradient(circle at 0% 100%, rgba(108, 225, 255, 0.08), transparent 55%),
        radial-gradient(circle at 100% 0%, rgba(159, 123, 255, 0.08), transparent 55%);
    animation: orb-glow 24s ease-in-out infinite alternate;
}

.hero {
    padding: 0.5rem 1.5rem 0.25rem;
    text-align: center;
    position: relative;
}

.hero__brand {
    font-size: clamp(2rem, 3.4vw, 2.6rem);
    letter-spacing: 0.12em;
    font-weight: 800;
    text-transform: uppercase;
    position: relative;
    display: inline-block;
    padding: 0.4rem 1.6rem;
    border-radius: 999px;
    background: radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.22), transparent 60%);
    box-shadow:
        0 0 25px rgba(0, 0, 0, 0.9),
        0 0 40px var(--accent-soft-2);
}

.hero__brand::before {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: linear-gradient(120deg, var(--accent), var(--accent-2));
    opacity: 0.9;
    z-index: -1;
}

.hero__brand::after {
    content: "";
    position: absolute;
    inset: -14px;
    border-radius: inherit;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.09), transparent 70%);
    opacity: 0.7;
    filter: blur(8px);
    z-index: -2;
}

.hero__subtitle {
    margin-top: 0.25rem;
    color: var(--muted);
    letter-spacing: 0.04em;
}

.grid {
    width: min(1100px, 100%);
    margin: 0 auto 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.2rem;
    padding: 0 1.25rem 1.25rem;
    position: relative;
}

.panel {
    position: relative;
    background: var(--panel);
    border-radius: 18px;
    padding: 1.2rem 1.3rem;
    box-shadow:
        0 22px 70px rgba(0, 0, 0, 0.7),
        0 0 0 1px rgba(255, 255, 255, 0.01);
    overflow: hidden;
}

.panel::before {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    padding: 1px;
    background: conic-gradient(
        from 180deg,
        rgba(108, 225, 255, 0.1),
        rgba(159, 123, 255, 0.2),
        rgba(108, 225, 255, 0.4),
        rgba(159, 123, 255, 0.2),
        rgba(108, 225, 255, 0.1)
    );
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    animation: border-spin 8s linear infinite;
}

.panel::after {
    content: "";
    position: absolute;
    inset: 14% -40%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 65%);
    opacity: 0.22;
    mix-blend-mode: screen;
    filter: blur(18px);
    animation: panel-glow 10s ease-in-out infinite alternate;
    pointer-events: none;
}

.panel--wide {
    grid-column: 1 / -1;
}

@media (min-width: 900px) {
    .grid {
        grid-template-columns: 0.9fr 1.1fr;
        grid-template-areas:
            "user create"
            "lobbies lobbies";
        align-items: flex-start;
    }

    #username-panel {
        grid-area: user;
    }

    #create-panel {
        grid-area: create;
    }

    #lobby-list-panel {
        grid-area: lobbies;
    }
}

form {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

label {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.95rem;
}

label.inline {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

input, button {
    font: inherit;
}

input[type="text"],
input[type="number"] {
    padding: 0.6rem 0.7rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text);
}

input:disabled {
    opacity: 0.5;
}

button {
    padding: 0.75rem 0.9rem;
    border-radius: 12px;
    border: 1px solid transparent;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #05060e;
    font-weight: 700;
    cursor: pointer;
    transition: transform 120ms ease, box-shadow 120ms ease;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
    filter: grayscale(0.3);
}

button:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 10px 25px rgba(111, 225, 255, 0.35);
}

h2, h3 {
    margin: 0 0 0.5rem;
    text-shadow:
        0 0 8px rgba(255, 255, 255, 0.85),
        0 0 18px rgba(255, 160, 230, 0.65);
}

.note {
    color: var(--muted);
    font-size: 0.9rem;
}

.lobby-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    margin: 0.5rem 0 1rem;
}

.label {
    color: var(--muted);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

.players {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.pill {
    padding: 0.45rem 0.7rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.pill__crown {
    width: 1.1em;
    height: 1.1em;
    object-fit: contain;
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.8));
}

.actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.footer {
    text-align: center;
    padding: 0.5rem;
    color: var(--muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.2);
    margin-top: auto;
}

.popup {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 150ms ease-out;
    z-index: 50;
}

.popup--visible {
    opacity: 1;
    pointer-events: auto;
}

.popup__card {
    min-width: min(360px, 90vw);
    max-width: 420px;
    padding: 1.2rem 1.3rem 1rem;
    border-radius: 16px;
    background: rgba(6, 8, 22, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow:
        0 18px 60px rgba(0, 0, 0, 0.8),
        0 0 40px rgba(105, 214, 255, 0.35);
}

.popup__title {
    font-weight: 700;
    margin-bottom: 0.35rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 0.8rem;
    color: var(--muted);
}

.popup__message {
    margin: 0 0 0.9rem;
    font-size: 0.95rem;
}

.popup__button {
    display: inline-block;
    padding: 0.55rem 1.3rem;
    border-radius: 999px;
    border: 1px solid transparent;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #05060e;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
}

.countdown {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 50% 10%, rgba(255, 255, 255, 0.08), transparent 60%);
    backdrop-filter: blur(6px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 160ms ease-out;
    z-index: 60;
}

.countdown--visible {
    opacity: 1;
    pointer-events: auto;
}

.countdown__circle {
    width: min(220px, 40vw);
    height: min(220px, 40vw);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.25), transparent 70%),
        radial-gradient(circle at 30% 80%, rgba(255, 127, 214, 0.18), transparent 65%);
    box-shadow:
        0 0 40px rgba(0, 0, 0, 0.9),
        0 0 60px rgba(105, 214, 255, 0.45);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.countdown__number {
    font-size: clamp(4rem, 12vw, 5.5rem);
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-shadow:
        0 0 16px rgba(255, 255, 255, 0.9),
        0 0 30px rgba(255, 127, 214, 0.85),
        0 0 45px rgba(105, 214, 255, 0.85);
}

.countdown__number--pulse {
    animation: countdown-pulse 900ms ease-out;
}

.lobby-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 0.85rem;
    margin-top: 0.75rem;
}

/* Compact, clean lobby cards (smaller + nicer) */
.lobby-card {
    position: relative;
    padding: 0.85rem 0.9rem;
    border-radius: 14px;
    background: linear-gradient(145deg, rgba(8, 12, 30, 0.92), rgba(10, 14, 36, 0.88));
    border: 1px solid rgba(255, 255, 255, 0.07);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
}

.lobby-card::before {
    content: "";
    position: absolute;
    inset: -40% -20% auto -40%;
    height: 90%;
    background: radial-gradient(circle, rgba(105, 214, 255, 0.18), transparent 60%);
    opacity: 0.65;
    filter: blur(18px);
    pointer-events: none;
}

.lobby-card:hover {
    transform: translateY(-3px);
    border-color: rgba(105, 214, 255, 0.32);
    box-shadow:
        0 18px 52px rgba(0, 0, 0, 0.55),
        0 0 22px rgba(255, 127, 214, 0.25);
}

.lobby-card__header {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
    align-items: flex-start;
    margin-bottom: 0.55rem;
}

.lobby-card__title-group h3 {
    margin: 0;
    font-size: 1rem;
    line-height: 1.2;
}

.lobby-card__code {
    font-family: "Consolas", "SF Mono", ui-monospace, monospace;
    letter-spacing: 0.16em;
    color: var(--muted);
    font-size: 0.8rem;
}

.lobby-card__badge {
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.05);
}

.lobby-card__badge--private { background: rgba(255, 127, 214, 0.15); border-color: rgba(255, 127, 214, 0.35); }
.lobby-card__badge--public { background: rgba(105, 214, 255, 0.12); border-color: rgba(105, 214, 255, 0.35); }
.lobby-card__badge--starting { background: rgba(255, 191, 71, 0.15); border-color: rgba(255, 191, 71, 0.4); }
.lobby-card__badge--ingame { background: rgba(111, 255, 177, 0.12); border-color: rgba(111, 255, 177, 0.4); }
.lobby-card__badge--full { background: rgba(255, 99, 132, 0.16); border-color: rgba(255, 99, 132, 0.4); }

.lobby-card__body {
    display: grid;
    gap: 0.5rem;
    margin: 0.4rem 0 0.6rem;
}

.lobby-card__info-row {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.lobby-card__info-item {
    display: grid;
    gap: 0.2rem;
    min-width: 120px;
}

.lobby-card__info-label {
    color: var(--muted);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
}

.lobby-card__info-value {
    font-weight: 600;
}

.lobby-card__progress {
    display: grid;
    gap: 0.25rem;
}

.lobby-card__progress-bar {
    width: 100%;
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.lobby-card__progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #69d6ff, #ff7fd6);
    border-radius: 999px;
}

.lobby-card__progress-text {
    color: var(--muted);
    font-size: 0.8rem;
}

.lobby-card__footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 0.4rem;
}

.lobby-card__join-btn {
    padding: 0.55rem 1.1rem;
    border-radius: 10px;
    border: 1px solid transparent;
    background: linear-gradient(120deg, #69d6ff, #ff7fd6);
    color: #05060e;
    font-weight: 700;
    cursor: pointer;
    transition: transform 120ms ease, box-shadow 120ms ease, opacity 120ms ease;
}

.lobby-card__join-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.lobby-card__join-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 8px 22px rgba(105, 214, 255, 0.35);
}

.lobby-filter {
    margin-top: 0.25rem;
}

.lobby-filter input {
    width: 100%;
    padding: 0.5rem 0.6rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.35);
    color: var(--text);
    font-size: 0.9rem;
}

.lobby-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 0.5rem;
    align-items: center;
    padding: 0.65rem 0.75rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.02);
    cursor: pointer;
    transition: background 120ms ease, border-color 120ms ease, transform 120ms ease;
    font-size: 0.9rem;
}

.lobby-row:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--accent);
    transform: translateY(-1px);
}

.lobby-row__name {
    font-weight: 600;
}

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

.lobby-row__privacy {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.lobby-row__privacy span {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.lobby-row__code {
    justify-self: end;
    font-family: "Consolas", "SF Mono", ui-monospace, monospace;
    font-size: 0.85rem;
    letter-spacing: 0.18em;
}

@keyframes scan-lines {
    0% { transform: translate3d(0, 0, 0); }
    100% { transform: translate3d(-40px, -40px, 0); }
}

@keyframes orb-glow {
    0% { transform: translate3d(0, 0, 0) scale(1); opacity: 0.5; }
    100% { transform: translate3d(10px, -10px, 0) scale(1.05); opacity: 0.9; }
}

@keyframes border-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes panel-glow {
    0% { transform: translate3d(-10px, 0, 0); opacity: 0.15; }
    100% { transform: translate3d(10px, 0, 0); opacity: 0.35; }
}

@keyframes countdown-pulse {
    0%   { transform: scale(0.4); opacity: 0; }
    40%  { transform: scale(1.05); opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}

@media (max-width: 600px) {
    body {
        gap: 0.5rem;
    }
    .panel {
        padding: 0.9rem;
    }
}