@font-face {
    font-family: 'Stack Sans Notch';
    src: url('/fonts/StackSansNotch.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

:root {
    --font-brand: 'Stack Sans Notch', 'Nunito', sans-serif;
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);

    /* Fuchsia / Lilac primary brand theme */
    --accent: #D946EF;
    --accent-light: #F0ABFC;
    --accent-dark: #A21CAF;
    --accent-soft: rgba(217, 70, 239, 0.16);
    --accent-glow: rgba(217, 70, 239, 0.45);

    --bg: #12061A;
    --bg-card: #1C0F27;
    --bg-card-hover: #261535;
    --bg-surface: #170A22;
    --avatar-bg: #2B163B;

    --text: #F5EBF8;
    --text-muted: #B399C2;
    --text-dim: #7B608A;

    --green: #10B981;
    --red: #F43F5E;
    --yellow: #FACC15;
    --cyan: #06B6D4;
    --blue: #3B82F6;

    --border: rgba(232, 121, 249, 0.14);
    --border-hover: rgba(232, 121, 249, 0.32);
    --radius: 18px;
    --radius-sm: 10px;
    --shadow: 0 16px 45px rgba(0, 0, 0, 0.5);
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.2, 0.75, 0.3, 1.15);

    /* Board dimensions & frame variants */
    --board-front: #381358;
    --board-border: #7E22CE;
    --cell-shadow: inset 0 6px 14px rgba(0, 0, 0, 0.8), inset 0 -2px 3px rgba(255, 255, 255, 0.1);

    /* Default disc colors: P1 = Fuchsia, P2 = Amber Gold */
    --disc-p1-grad: radial-gradient(circle at 35% 30%, #FDF4FF 0%, #F472B6 28%, #D946EF 68%, #A21CAF 100%);
    --disc-p1-color: #D946EF;
    --disc-p1-shadow: 0 6px 16px rgba(217, 70, 239, 0.45);

    --disc-p2-grad: radial-gradient(circle at 35% 30%, #FEFCE8 0%, #FDE047 28%, #EAB308 68%, #CA8A04 100%);
    --disc-p2-color: #EAB308;
    --disc-p2-shadow: 0 6px 16px rgba(234, 179, 8, 0.45);
}

/* Board hue variants */
body[data-board="plum"]  { --board-front: #351052; --board-border: #6B21A8; }
body[data-board="lilac"] { --board-front: #4A1B82; --board-border: #9333EA; }
body[data-board="navy"]  { --board-front: #1E293B; --board-border: #3B82F6; }
body[data-board="slate"] { --board-front: #27272A; --board-border: #71717A; }

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
    overflow-x: hidden;
}

button { font-family: inherit; touch-action: manipulation; }
svg { display: block; }
:focus-visible { outline: 2px solid var(--accent-light); outline-offset: 2px; }
.hidden { display: none !important; }
.muted { color: var(--text-muted); }

/* Screens */
.screen { display: none; width: 100%; min-height: 100dvh; }
.screen.active { display: flex; animation: fadeIn 0.35s var(--ease); }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 22px; border: none; border-radius: var(--radius-sm);
    font-size: 15px; font-weight: 800; cursor: pointer;
    transition: transform 0.15s var(--ease), background 0.15s, opacity 0.15s, box-shadow 0.15s;
    user-select: none; position: relative;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:active:not(:disabled) { transform: translateY(0); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-block { width: 100%; }

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: #FFFFFF;
    box-shadow: 0 4px 18px var(--accent-glow);
}
.btn-primary:hover:not(:disabled) {
    box-shadow: 0 6px 24px rgba(217, 70, 239, 0.6);
}
.btn-secondary {
    background: var(--bg-card);
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover:not(:disabled) {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}
.btn-ghost {
    background: transparent;
    color: var(--text-muted);
}
.btn-ghost:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
}
.btn-accent {
    background: var(--red);
    color: #FFFFFF;
}

.btn.loading { color: transparent !important; }
.btn.loading::after {
    content: ''; position: absolute; width: 18px; height: 18px; border-radius: 50%;
    border: 2.5px solid rgba(255, 255, 255, 0.35); border-top-color: #FFFFFF;
    animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.btn-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: var(--radius-sm);
    background: var(--bg-card); border: 1px solid var(--border);
    color: var(--text-muted); cursor: pointer; transition: all 0.15s var(--ease);
}
.btn-icon:hover {
    background: var(--bg-card-hover);
    color: var(--text);
    border-color: var(--border-hover);
}

::selection {
    background: var(--accent);
    color: #FFFFFF;
}

.link-btn {
    background: none; border: none; padding: 0;
    color: var(--accent-light); font-size: 13.5px; font-weight: 700;
    cursor: pointer; display: inline-flex; align-items: center; gap: 6px;
    transition: color 0.15s;
}
.link-btn:hover { color: #FFFFFF; text-decoration: underline; }

/* Inputs (Text boxes) */
input[type="text"] {
    width: 100%; padding: 14px 16px; background: var(--bg-surface); border: 1.5px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text); font-family: inherit; font-size: 16px;
    font-weight: 600; line-height: 1.3; outline: none;
    transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}
input[type="text"]::placeholder { color: var(--text-dim); font-weight: 500; }
input[type="text"]:hover { border-color: var(--border-hover); }
input[type="text"]:focus {
    border-color: var(--accent); background: var(--bg-card);
    box-shadow: 0 0 0 4px var(--accent-soft);
}
input[type="text"]:disabled { opacity: 0.5; cursor: not-allowed; }
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--text);
    -webkit-box-shadow: 0 0 0 1000px var(--bg-surface) inset;
    transition: background-color 5000s ease-in-out 0s;
}
#step-name input[type="text"] {
    background: var(--bg-card);
}
#step-name input[type="text"]:focus {
    background: var(--bg-card-hover);
}
.mode-card input[type="text"] {
    background: var(--bg-surface);
}
.mode-card input[type="text"]:focus {
    background: var(--bg);
}
.solo-card input[type="text"] { padding: 12px 14px; }

/* Option chips (time, level, color) */
.field { display: flex; flex-direction: column; gap: 6px; }
.field-label { font-size: 12px; font-weight: 800; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { cursor: pointer; position: relative; flex: 1 1 auto; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip > span {
    display: flex; align-items: center; justify-content: center; gap: 6px; min-height: 40px; padding: 0 12px;
    border-radius: var(--radius-sm); border: 1.5px solid var(--border); background: var(--bg-surface);
    color: var(--text-muted); font-size: 13.5px; font-weight: 800; white-space: nowrap;
    transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.chip:hover > span { border-color: rgba(240, 171, 252, 0.45); color: var(--text); }
.chip input:checked + span { border-color: var(--accent); background: rgba(217, 70, 239, 0.16); color: var(--accent-light); }
.chip input:focus-visible + span { box-shadow: 0 0 0 3px rgba(217, 70, 239, 0.35); }
.chip-dot { width: 12px; height: 12px; border-radius: 50%; border: 1.5px solid var(--text-dim); flex-shrink: 0; }
.chip-dot.p1 { background: var(--disc-p1-color, #D946EF); }
.chip-dot.p2 { background: var(--disc-p2-color, #EAB308); }
.chip-dot.r { background: linear-gradient(90deg, var(--disc-p1-color, #D946EF) 50%, var(--disc-p2-color, #EAB308) 50%); }

/* ==================== LOBBY ==================== */
#screen-lobby {
    flex-direction: column; align-items: center;
    padding: calc(72px + var(--safe-top)) 16px 0;
    position: relative;
}
.lobby-container { width: 100%; max-width: 640px; margin: auto 0; }
.lang-selector { position: absolute; top: calc(16px + var(--safe-top)); right: 16px; display: flex; gap: 6px; z-index: 20; }

.site-footer {
    width: 100%; max-width: 640px; margin-top: 40px; padding: 18px 0 calc(22px + var(--safe-bottom));
    border-top: 1px solid var(--border); font-size: 13.5px;
    display: flex; align-items: center; justify-content: center; gap: 10px 16px; flex-wrap: wrap;
}
.version-btn {
    display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; border-radius: 20px;
    border: 1px solid var(--border); background: transparent; color: var(--text-muted);
    font-size: 12px; font-weight: 800; font-variant-numeric: tabular-nums; cursor: pointer;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.version-btn:hover { color: var(--text); border-color: var(--accent-light); background: rgba(217, 70, 239, 0.12); }

/* How to play */
.hero-links { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 4px 20px; margin-top: 10px; }
.howto-link { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; font-size: 14px; }
.howto-inline { display: none; }
.howto h2 { font-size: 15px; font-weight: 800; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 14px; }
.howto-list { list-style: none; display: flex; flex-direction: column; gap: 14px; text-align: left; }
.howto-list li { display: flex; gap: 14px; align-items: flex-start; }
.howto-num {
    flex-shrink: 0; width: 34px; height: 34px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
    background: rgba(217, 70, 239, 0.18); color: var(--accent-light); font-weight: 800; font-size: 15px;
}
.howto-list strong { display: block; font-size: 15.5px; margin-bottom: 2px; }
.howto-list p { color: var(--text-muted); font-size: 14px; line-height: 1.45; }
.modal-content.howto h3 { margin-bottom: 18px; }
.modal-content.howto .howto-list { margin-bottom: 22px; }
.rules-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; text-decoration: none; font-size: 14px; }

/* Desktop start page: presentation on the left, choices on the right */
@media (min-width: 980px) {
    .lobby-container {
        max-width: 1120px;
        display: grid;
        grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
        gap: 56px;
        align-items: center;
    }
    .hero { text-align: left; }
    .hero .logo-area { text-align: left; margin-bottom: 28px; }
    .hero .logo-faces { justify-content: flex-start; }
    .hero .logo-title { font-size: 52px; justify-content: flex-start; }
    .hero .logo-subtitle { font-size: 17px; }
    .hero-links { display: none; }
    .howto-inline {
        display: block;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 22px;
    }
    .site-footer { max-width: 1120px; justify-content: space-between; }
    .credit-block { align-items: flex-start; }
}

.credit-block { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.credit-ai { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--text-muted); opacity: 0.8; }
.credit-ai svg { color: var(--accent-light); }
.credit { color: var(--text-muted); text-decoration: none; display: inline-flex; align-items: baseline; gap: 7px; flex-wrap: wrap; justify-content: center; }
.credit-name { font-family: var(--font-brand); font-size: 1.08rem; color: var(--text); letter-spacing: 0.01em; transition: color 0.15s; }
.credit:hover .credit-name, .credit:focus-visible .credit-name { color: var(--accent-light); }
.lang-btn {
    width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--border);
    background: transparent; color: var(--text-muted); font-size: 11px; font-weight: 800;
    cursor: pointer; transition: all 0.2s;
}
.lang-btn:hover { color: var(--text); border-color: var(--accent-light); }
@media (pointer: coarse) { .lang-btn { width: 40px; height: 40px; font-size: 12px; } }

/* Phones: a single language button that opens a sheet with full language names */
.lang-toggle {
    display: none; position: absolute; top: calc(14px + var(--safe-top)); right: 14px;
    align-items: center; gap: 6px; min-height: 40px; padding: 0 12px;
    border-radius: 20px; border: 1px solid var(--border); background: var(--bg-card);
    color: var(--text); font-size: 13px; font-weight: 800; cursor: pointer; z-index: 20;
}
.lang-toggle:hover { border-color: var(--accent-light); }
.lang-toggle svg:first-child { color: var(--accent-light); }

.brand-mark { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 26px; font-size: 17px; font-weight: 800; color: var(--text); }
.brand-mark img { border-radius: 8px; }
.lang-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.hero { display: flex; flex-direction: column; gap: 16px; }
.logo-area { text-align: center; margin-bottom: 24px; }
.logo-faces { display: flex; justify-content: center; margin-bottom: 14px; }
.logo-face {
    width: 64px; height: 64px; border-radius: 18px; overflow: hidden;
    border: 3px solid var(--bg); box-shadow: var(--shadow);
    background: var(--board-front, #381358);
    display: flex; align-items: center; justify-content: center;
    position: relative;
}
.logo-face::before {
    content: ''; position: absolute; width: 44px; height: 44px; border-radius: 50%;
    background: rgba(14, 5, 22, 0.9); box-shadow: inset 0 3px 6px rgba(0, 0, 0, 0.7);
}
.logo-face.f1 { transform: rotate(-8deg); margin-right: -10px; animation: bob1 3.2s ease-in-out infinite; }
.logo-face.f2 { position: relative; z-index: 1; width: 74px; height: 74px; animation: bob2 3.2s ease-in-out infinite; animation-delay: 0.4s; }
.logo-face.f2::before { width: 52px; height: 52px; }
.logo-face.f3 { transform: rotate(8deg); margin-left: -10px; animation: bob3 3.2s ease-in-out infinite; animation-delay: 0.8s; }
.logo-face .disc {
    position: relative; z-index: 2; width: 40px; height: 40px; border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.45);
}
.logo-face.f2 .disc { width: 48px; height: 48px; }
.logo-face.f1 .disc { background: var(--disc-p1-grad); }
.logo-face.f2 .disc { background: var(--disc-p2-grad); }
.logo-face.f3 .disc { background: var(--disc-p1-grad); }

@keyframes bob1 {
    0%, 100% { transform: rotate(-8deg) translateY(0); }
    50% { transform: rotate(-8deg) translateY(-7px); }
}
@keyframes bob2 {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-7px); }
}
@keyframes bob3 {
    0%, 100% { transform: rotate(8deg) translateY(0); }
    50% { transform: rotate(8deg) translateY(-7px); }
}

.logo-title {
    display: flex; justify-content: center; align-items: center; gap: 12px;
    font-family: var(--font-brand); font-size: 40px; font-weight: 800; letter-spacing: -0.5px;
}
.logo-title span {
    background: linear-gradient(135deg, var(--accent-light), var(--accent));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.logo-mark {
    width: 44px; height: 44px; border-radius: 11px; flex-shrink: 0;
    box-shadow: 0 6px 18px var(--accent-glow);
}
.logo-subtitle { color: var(--text-muted); font-size: 15px; margin-top: 2px; }

/* Lobby Panel */
.lobby-panel {
    width: 100%;
}

.steps-indicator { list-style: none; display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 22px; }
.step-btn {
    display: inline-flex; align-items: center; gap: 8px; padding: 4px 10px 4px 4px; border-radius: 20px;
    background: none; border: none; color: var(--text-dim); font-size: 13px; font-weight: 800;
}
.step-num {
    width: 26px; height: 26px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;
    border: 2px solid var(--text-dim); font-size: 12.5px; transition: all 0.3s var(--ease);
}
.step-check { display: none; }
.step.active .step-btn { color: var(--text); }
.step.active .step-num { background: var(--accent); border-color: var(--accent); color: #fff; }
.step.done .step-btn { color: var(--text-muted); cursor: pointer; }
.step.done .step-btn:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.step.done .step-num { background: var(--green); border-color: var(--green); color: #fff; }
.step.done .step-n { display: none; }
.step.done .step-check { display: block; }
.step-line { width: 32px; height: 2px; background: var(--border); border-radius: 2px; }
.step.done + .step-line { background: var(--green); }

.lobby-step { display: none; }
.lobby-step.active { display: block; animation: fadeIn 0.3s var(--ease); }

#step-name { max-width: 380px; margin: 0 auto; display: none; flex-direction: column; gap: 12px; }
#step-name.active { display: flex; }
.step-title { display: block; font-size: 22px; font-weight: 800; text-align: center; }
.step-hint { color: var(--text-muted); font-size: 14px; text-align: center; margin-bottom: 6px; }
.greeting { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.greeting .link-btn { font-size: 13px; padding: 2px 4px; }
#step-mode .step-hint { margin: 4px 0 18px; }

/* Mode tabs */
.mode-tabs {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; padding: 4px; margin-bottom: 16px;
    background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px;
}
.mode-tab {
    display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 8px;
    border: none; border-radius: 10px; background: transparent; color: var(--text-muted);
    font-size: 14px; font-weight: 800; cursor: pointer; transition: background 0.2s, color 0.2s;
}
.mode-tab:hover { color: var(--text); }
.mode-tab.active { background: var(--accent); color: #fff; box-shadow: 0 4px 14px var(--accent-glow); }

.mode-panel { display: none; }
.mode-panel.active { display: block; animation: fadeIn 0.25s var(--ease); }

.mode-options { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.mode-card {
    background: var(--bg-card); border: 1.5px solid var(--border); border-radius: var(--radius);
    padding: 20px; display: flex; flex-direction: column; gap: 14px;
    transition: border-color 0.25s, transform 0.25s var(--ease), box-shadow 0.25s;
}
.mode-card:hover, .mode-card:focus-within {
    border-color: rgba(240, 171, 252, 0.45);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
.mode-card.highlight { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(217, 70, 239, 0.25); }
.mode-icon {
    width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
    background: rgba(217, 70, 239, 0.18); color: var(--accent-light); flex-shrink: 0;
}
.mode-icon.alt { background: rgba(255, 234, 167, 0.14); color: var(--yellow); }
.mode-icon.random { background: rgba(116, 185, 255, 0.16); color: var(--blue, #60A5FA); flex-shrink: 0; }
.mode-body h3 { font-size: 17px; font-weight: 800; margin-bottom: 4px; }
.mode-body p { color: var(--text-muted); font-size: 13.5px; line-height: 1.45; }
.mode-card .btn { margin-top: auto; }
.mode-card-wide { grid-column: 1 / -1; flex-direction: row; align-items: center; }
.mode-card-wide .mode-body { flex: 1; }
.mode-card-wide .btn { margin-top: 0; flex-shrink: 0; }
.solo-card { max-width: 460px; margin: 0 auto; width: 100%; }

@media (max-width: 640px) {
    .mode-tab { flex-direction: column; gap: 2px; font-size: 12px; min-height: 52px; }
    .mode-options { grid-template-columns: 1fr; }
    .mode-card, .mode-card-wide {
        display: grid; grid-template-columns: auto 1fr;
        align-items: center; column-gap: 12px; row-gap: 12px; padding: 16px;
    }
    .mode-card > :not(.mode-icon):not(.mode-body) { grid-column: 1 / -1; }
    .mode-card-wide .btn { width: 100%; margin-top: 0; }
    .mode-icon { width: 40px; height: 40px; }
    .mode-body h3 { font-size: 16px; margin-bottom: 2px; }
    .mode-body p { font-size: 13px; }
}

.code-input {
    font-family: 'SF Mono', ui-monospace, Menlo, Monaco, Consolas, monospace;
    font-size: 22px !important; font-weight: 800;
    letter-spacing: 6px; text-indent: 6px; text-transform: uppercase; text-align: center;
    padding: 12px 14px;
}
.code-input::placeholder { letter-spacing: 6px; opacity: 0.55; }

/* ==================== WAITING SCREEN ==================== */
#screen-waiting {
    align-items: center; justify-content: center; padding: 24px;
}
.waiting-container {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 40px 32px;
    max-width: 440px; width: 100%; text-align: center;
    box-shadow: var(--shadow); display: flex; flex-direction: column; align-items: center; gap: 18px;
}
.brand-mark {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font-brand); font-size: 20px; font-weight: 900;
    color: var(--text); margin-bottom: 8px;
}
.brand-mark img { width: 28px; height: 28px; border-radius: 8px; }

.waiting-animation {
    position: relative; width: 100px; height: 100px;
    display: flex; align-items: center; justify-content: center;
    margin: 10px 0;
}
.pulse-ring {
    position: absolute; inset: 0; border-radius: 50%;
    border: 2px solid var(--accent); opacity: 0;
    animation: pulseGlow 2.2s infinite cubic-bezier(0.2, 0, 0.2, 1);
}
.pulse-ring.delay-1 { animation-delay: 0.7s; }
.pulse-ring.delay-2 { animation-delay: 1.4s; }

@keyframes pulseGlow {
    0% { transform: scale(0.4); opacity: 0.8; }
    50% { opacity: 0.3; }
    100% { transform: scale(1.3); opacity: 0; }
}

.waiting-dots {
    display: flex; gap: 6px; z-index: 1;
}
.waiting-dots span {
    width: 14px; height: 14px; border-radius: 50%;
    background: var(--accent);
    animation: bounceDot 1.4s infinite ease-in-out both;
}
.waiting-dots span:nth-child(1) { animation-delay: -0.32s; }
.waiting-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounceDot {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.5; }
    40% { transform: scale(1.1); opacity: 1; }
}

.room-code-display {
    background: var(--bg-surface); border: 2px dashed var(--accent);
    border-radius: var(--radius-sm); padding: 14px 24px;
    display: flex; align-items: center; gap: 14px;
    cursor: pointer; margin: 12px 0 6px; transition: all 0.15s;
}
.room-code-display:hover { background: var(--bg-card-hover); border-color: var(--accent-light); }
.room-code-display span {
    font-family: monospace; font-size: 28px; font-weight: 900;
    letter-spacing: 6px; color: #FFFFFF;
}

.waiting-actions { display: flex; flex-direction: column; width: 100%; gap: 10px; margin-top: 6px; }

/* ==================== GAME SCREEN ==================== */
#screen-game {
    flex-direction: column; min-height: 100dvh;
    background: var(--bg);
}

.game-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: calc(var(--safe-top) + 12px) 20px 12px;
    background: var(--bg-card); border-bottom: 1px solid var(--border);
    z-index: 10;
}
.game-header-left { display: flex; align-items: center; gap: 16px; }
.game-title {
    display: flex; align-items: center; gap: 10px;
    font-family: var(--font-brand); font-size: 20px; font-weight: 900;
    color: #FFFFFF; text-decoration: none;
}
.game-title img { width: 28px; height: 28px; border-radius: 8px; }

.turn-indicator {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 14px; border-radius: 20px;
    background: var(--bg-surface); border: 1px solid var(--border);
    font-size: 13px; font-weight: 800;
}
.turn-disc-dot {
    width: 12px; height: 12px; border-radius: 50%;
    box-shadow: 0 0 8px currentColor;
}

.game-header-right { display: flex; align-items: center; gap: 8px; }
.mode-badge {
    padding: 5px 10px; border-radius: 12px;
    background: var(--bg-surface); border: 1px solid var(--border);
    font-size: 11.5px; font-weight: 800; color: var(--text-dim); text-transform: uppercase;
}

.game-body {
    flex: 1; display: grid; grid-template-columns: 1fr 340px;
    overflow: hidden; position: relative;
}

.board-area {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 20px; position: relative; overflow-y: auto;
}

.banner {
    position: absolute; top: 16px; z-index: 15;
    padding: 10px 20px; border-radius: 24px;
    background: var(--accent); color: #FFFFFF; font-weight: 800; font-size: 14px;
    box-shadow: 0 4px 20px var(--accent-glow);
    animation: bannerPop 0.3s var(--ease);
}
@keyframes bannerPop {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.board-column {
    display: flex; flex-direction: column; align-items: center; gap: 14px;
    max-width: 580px; width: 100%; margin: 0 auto;
}

/* Player Bar */
.player-bar {
    width: 100%; display: flex; align-items: center; justify-content: space-between;
    padding: 10px 16px; background: var(--bg-card); border: 1.5px solid var(--border);
    border-radius: var(--radius-sm); transition: all 0.25s var(--ease);
}
.player-bar.active-turn {
    border-color: var(--accent);
    box-shadow: 0 0 16px var(--accent-soft);
}
.player-bar-info { display: flex; align-items: center; gap: 12px; }
.player-avatar {
    width: 36px; height: 36px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}
.player-name-wrap { display: flex; flex-direction: column; gap: 2px; }
.player-name { font-size: 14.5px; font-weight: 800; color: #FFFFFF; }
.player-sub { font-size: 11.5px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.online-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
.online-dot.offline { background: var(--red); }

.player-clock {
    font-family: monospace; font-size: 18px; font-weight: 800;
    color: var(--text); padding: 4px 10px; border-radius: 8px;
    background: var(--bg-surface);
}
.player-clock.low-time { color: var(--red); animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: 0.5; } }

/* ==================== CONNECT FOUR BOARD ==================== */
.board-wrap {
    position: relative; width: 100%;
    margin: 32px 0 6px;
    user-select: none; touch-action: manipulation;
}

/* Column Top Guides (where dropping piece preview appears) */
.column-guides {
    position: absolute; top: -34px; left: 0; width: 100%; height: 28px;
    display: grid; grid-template-columns: repeat(7, 1fr);
    padding: 0 clamp(8px, 2vw, 14px); gap: clamp(4px, 1.2vw, 10px);
    pointer-events: none; z-index: 5;
}
.guide-indicator {
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transform: translateY(-4px); transition: all 0.15s var(--ease);
}
.guide-indicator.active {
    opacity: 1; transform: translateY(0);
}
.guide-arrow {
    width: 22px; height: 22px; color: var(--accent-light);
    filter: drop-shadow(0 2px 6px var(--accent-glow));
    animation: guideBob 0.8s infinite alternate ease-in-out;
}
@keyframes guideBob {
    from { transform: translateY(0); }
    to { transform: translateY(4px); }
}

/* Connect Four Board Front / Grid */
.c4-board {
    position: relative; width: 100%;
    background: var(--board-front);
    border: 3.5px solid var(--board-border);
    border-radius: 22px;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.65), inset 0 2px 4px rgba(255, 255, 255, 0.25);
    display: grid; grid-template-columns: repeat(7, 1fr);
    gap: clamp(4px, 1.2vw, 10px);
    padding: clamp(8px, 2vw, 14px);
    overflow: hidden;
}

.c4-column {
    display: flex; flex-direction: column;
    gap: clamp(4px, 1.2vw, 10px);
    cursor: pointer; position: relative;
    border-radius: 12px; transition: background 0.15s;
}
.c4-column:hover {
    background: rgba(255, 255, 255, 0.08);
}
.c4-column.full { cursor: not-allowed; opacity: 0.85; }

/* Each cell is a GUARANTEED 1:1 circle */
.c4-cell {
    width: 100%; aspect-ratio: 1 / 1; border-radius: 50%;
    position: relative; display: flex; align-items: center; justify-content: center;
    background: rgba(14, 5, 22, 0.9);
    box-shadow: inset 0 6px 14px rgba(0, 0, 0, 0.85), inset 0 -2px 3px rgba(255, 255, 255, 0.12);
    overflow: hidden;
}

/* 3D bevel ring on top of disc so disc sits INSIDE the slot! */
.c4-cell::after {
    content: ''; position: absolute; inset: 0; border-radius: 50%;
    box-shadow: inset 0 5px 10px rgba(0, 0, 0, 0.75), inset 0 -2px 4px rgba(255, 255, 255, 0.15);
    pointer-events: none; z-index: 3;
}

/* The actual falling / landed disc */
.c4-disc {
    position: absolute; width: 92%; height: 92%; border-radius: 50%;
    z-index: 2; transition: transform 0.1s;
}

/* Disc player 1 */
.c4-disc.p1 {
    background: var(--disc-p1-grad);
    box-shadow: var(--disc-p1-shadow);
}
/* Disc player 2 */
.c4-disc.p2 {
    background: var(--disc-p2-grad);
    box-shadow: var(--disc-p2-shadow);
}

/* Disc finish styles */
.c4-disc.style-glossy::before, .preview-disc.style-glossy::before {
    content: ''; position: absolute; top: 10%; left: 18%; width: 48%; height: 26%;
    border-radius: 50%; background: #FFFFFF; opacity: 0.45;
    transform: rotate(-25deg);
}
.c4-disc.style-ring::after, .preview-disc.style-ring::after {
    content: ''; position: absolute; inset: 18%; border-radius: 50%;
    border: 2px dashed rgba(255, 255, 255, 0.45);
}
.c4-disc.style-star::after, .preview-disc.style-star::after {
    content: '★'; position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; color: rgba(255, 255, 255, 0.7);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

/* ==================== FLAT MODERN STYLE (NO REFLECTIONS) ==================== */
body[data-disc-style="flat"] .c4-disc.p1,
body[data-disc-style="flat"] .preview-disc.p1,
.c4-disc.style-flat.p1,
.preview-disc.style-flat.p1 {
    background: var(--disc-p1-color) !important;
    box-shadow: none !important;
}
body[data-disc-style="flat"] .c4-disc.p2,
body[data-disc-style="flat"] .preview-disc.p2,
.c4-disc.style-flat.p2,
.preview-disc.style-flat.p2 {
    background: var(--disc-p2-color) !important;
    box-shadow: none !important;
}
body[data-disc-style="flat"] .c4-disc::before,
body[data-disc-style="flat"] .c4-disc::after,
body[data-disc-style="flat"] .preview-disc::before,
body[data-disc-style="flat"] .preview-disc::after,
.c4-disc.style-flat::before,
.c4-disc.style-flat::after,
.preview-disc.style-flat::before,
.preview-disc.style-flat::after {
    display: none !important;
    content: none !important;
}

/* Flat apertures: clean matte depth, eliminate bottom rim white reflection */
body[data-disc-style="flat"] .c4-cell {
    box-shadow: inset 0 5px 12px rgba(0, 0, 0, 0.85);
}
body[data-disc-style="flat"] .c4-cell::after {
    box-shadow: inset 0 3px 6px rgba(0, 0, 0, 0.7);
}
body[data-disc-style="flat"] .preview-cell {
    box-shadow: inset 0 3px 6px rgba(0, 0, 0, 0.75);
}
body[data-disc-style="flat"] .preview-cell::after {
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.65);
}

/* Flat board frame: remove top specular glare highlight */
body[data-disc-style="flat"] .c4-board {
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.55);
}
body[data-disc-style="flat"] .preview-board {
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
}

/* Dots, avatars and logos in flat mode */
body[data-disc-style="flat"] .turn-disc-dot {
    box-shadow: none !important;
}
body[data-disc-style="flat"] .palette-dot {
    box-shadow: none !important;
}
body[data-disc-style="flat"] .player-avatar {
    box-shadow: none !important;
    border-color: rgba(255, 255, 255, 0.18);
}
body[data-disc-style="flat"] .logo-face .disc {
    box-shadow: none !important;
}
body[data-disc-style="flat"] .logo-face.f1 .disc { background: var(--disc-p1-color); }
body[data-disc-style="flat"] .logo-face.f2 .disc { background: var(--disc-p2-color); }
body[data-disc-style="flat"] .logo-face.f3 .disc { background: var(--disc-p1-color); }

/* Black disc contrast outline (e.g. White & Black palette) */
body[data-palette="black_white"] .c4-disc.p2,
body[data-palette="black_white"] .preview-disc.p2,
.palette-card[data-palette="black_white"] .palette-dot:last-child {
    border: 1.5px solid rgba(255, 255, 255, 0.35);
}

/* Winning 4-in-a-row disc highlight */
.c4-disc.winning {
    animation: winPulse 1s infinite alternate ease-in-out;
    z-index: 4;
}
@keyframes winPulse {
    0% { transform: scale(1); filter: brightness(1) drop-shadow(0 0 6px #FFFFFF); }
    100% { transform: scale(1.08); filter: brightness(1.35) drop-shadow(0 0 18px #FFFFFF); }
}

/* SVG Line connecting the winning 4 discs */
.c4-winning-line {
    position: absolute; inset: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 10;
}

/* Physical drop distance animation: Row 0 is top (short), Row 5 is bottom (long) */
@keyframes drop0 { from { transform: translateY(-160%); } to { transform: translateY(0); } }
@keyframes drop1 { from { transform: translateY(-260%); } to { transform: translateY(0); } }
@keyframes drop2 { from { transform: translateY(-360%); } to { transform: translateY(0); } }
@keyframes drop3 { from { transform: translateY(-460%); } to { transform: translateY(0); } }
@keyframes drop4 { from { transform: translateY(-560%); } to { transform: translateY(0); } }
@keyframes drop5 { from { transform: translateY(-660%); } to { transform: translateY(0); } }

.c4-disc.anim-drop-0 { animation: drop0 0.30s var(--ease-bounce) backwards; }
.c4-disc.anim-drop-1 { animation: drop1 0.35s var(--ease-bounce) backwards; }
.c4-disc.anim-drop-2 { animation: drop2 0.40s var(--ease-bounce) backwards; }
.c4-disc.anim-drop-3 { animation: drop3 0.45s var(--ease-bounce) backwards; }
.c4-disc.anim-drop-4 { animation: drop4 0.50s var(--ease-bounce) backwards; }
.c4-disc.anim-drop-5 { animation: drop5 0.55s var(--ease-bounce) backwards; }

.anim-fast .c4-disc { animation-duration: 0.22s !important; }
.anim-instant .c4-disc { animation: none !important; }

/* Side Panel */
.side-panel {
    background: var(--bg-card); border-left: 1px solid var(--border);
    display: flex; flex-direction: column; overflow: hidden;
}
.side-inner {
    padding: 18px; display: flex; flex-direction: column; gap: 16px;
    height: 100%; overflow-y: auto;
}
.side-title {
    font-size: 13.5px; font-weight: 800; color: var(--text-dim);
    text-transform: uppercase; letter-spacing: 0.5px;
}

.moves-wrap {
    flex: 1; min-height: 120px; display: flex; flex-direction: column; gap: 8px;
}
.move-list {
    list-style: none; display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 6px; max-height: 180px; overflow-y: auto; padding-right: 4px;
}
.move-item {
    background: var(--bg-surface); padding: 6px 10px; border-radius: 6px;
    font-size: 12.5px; font-weight: 700; display: flex; align-items: center; justify-content: space-between;
}
.move-item .move-num { color: var(--text-dim); }

/* Chat */
.chat {
    display: flex; flex-direction: column; gap: 10px;
    background: var(--bg-surface); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 12px;
}
.chat-head { display: flex; align-items: center; justify-content: space-between; }
.chat-list {
    list-style: none; max-height: 140px; overflow-y: auto;
    display: flex; flex-direction: column; gap: 6px;
}
.chat-msg {
    padding: 6px 10px; border-radius: 8px; font-size: 12.5px;
    line-height: 1.35; max-width: 88%; word-break: break-word;
}
.chat-msg.me {
    background: var(--accent); color: #FFFFFF; align-self: flex-end;
}
.chat-msg.them {
    background: var(--bg-card); color: var(--text); align-self: flex-start;
}
.chat-form { display: flex; gap: 8px; align-items: center; }
.chat-form input {
    flex: 1; min-width: 0; padding: 11px 16px; border-radius: 22px;
    border: 1.5px solid var(--border); background: var(--bg); color: var(--text);
    font: inherit; font-size: 16px; font-weight: 500; outline: none;
    transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.chat-form input::placeholder { color: var(--text-dim); }
.chat-form input:hover { border-color: var(--border-hover); }
.chat-form input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.chat-form input:disabled { opacity: 0.5; }
.chat-send {
    flex-shrink: 0; width: 42px; height: 42px; border-radius: 50%; border: none;
    background: var(--accent); color: #FFFFFF; display: flex; align-items: center; justify-content: center;
    cursor: pointer; box-shadow: 0 2px 10px var(--accent-glow);
    transition: background 0.15s, transform 0.1s;
}
.chat-send:hover { background: var(--accent-dark); }
.chat-send:active { transform: scale(0.95); }
.chat-form input:disabled + .chat-send { opacity: 0.5; pointer-events: none; }

/* Action buttons */
.game-actions {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-top: auto;
}
.action-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 10px 14px; border-radius: 8px;
    background: var(--bg-surface); border: 1px solid var(--border);
    color: var(--text); font-size: 13px; font-weight: 800; cursor: pointer;
    transition: all 0.15s;
}
.action-btn:hover { background: var(--bg-card-hover); border-color: var(--border-hover); }
.action-btn.danger { color: var(--red); }
.action-btn.danger:hover { background: rgba(244, 63, 94, 0.12); border-color: var(--red); }
.action-btn.primary {
    grid-column: span 2; background: var(--accent); color: #FFFFFF; border: none;
}

/* ==================== MODALS ==================== */
.modal {
    position: fixed; inset: 0; z-index: 100;
    background: rgba(0, 0, 0, 0.78); backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center; padding: 20px;
    animation: fadeIn 0.2s var(--ease);
}
.modal-content {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 30px;
    max-width: 520px; width: 100%; max-height: 85vh; overflow-y: auto;
    position: relative; box-shadow: var(--shadow);
}
.modal-content h3 { font-size: 20px; font-weight: 800; color: #FFFFFF; margin-bottom: 16px; }
.zoom-close {
    position: absolute; top: 20px; right: 20px;
    background: none; border: none; color: var(--text-dim);
    cursor: pointer; padding: 4px; border-radius: 6px;
    transition: color 0.15s;
}
.zoom-close:hover { color: #FFFFFF; }

/* Language Sheet Modal */
.modal-content.lang-sheet { max-width: 420px; }
.lang-options { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
.lang-option {
    display: flex; align-items: center; gap: 14px; width: 100%; min-height: 52px; padding: 0 16px;
    border-radius: 12px; border: 1.5px solid var(--border); background: var(--bg-surface);
    color: var(--text); font-size: 15px; font-weight: 700; text-align: left; cursor: pointer;
    transition: all 0.15s;
}
.lang-option:hover { border-color: var(--accent-light); }
.lang-option.active { border-color: var(--accent); background: var(--accent-soft); }
.lang-code {
    width: 34px; height: 26px; border-radius: 7px; display: inline-flex; align-items: center; justify-content: center;
    background: var(--bg-card-hover); color: var(--text-muted); font-size: 11.5px; font-weight: 800; letter-spacing: 0.04em;
}
.lang-option.active .lang-code { background: var(--accent); color: #FFFFFF; }
.lang-check { margin-left: auto; color: var(--accent-light); opacity: 0; }
.lang-option.active .lang-check { opacity: 1; }

/* Customise Modal Layout */
.custom-section { margin-bottom: 22px; }
.custom-section-title {
    font-size: 13px; font-weight: 800; color: var(--text-dim);
    text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 10px;
}
.palette-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
}
.palette-card {
    background: var(--bg-surface); border: 2px solid var(--border);
    border-radius: 10px; padding: 10px; cursor: pointer;
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    transition: all 0.15s;
}
.palette-card:hover { border-color: var(--border-hover); }
.palette-card.active { border-color: var(--accent); background: var(--bg-card-hover); }
.palette-dots { display: flex; gap: 6px; }
.palette-dot {
    width: 22px; height: 22px; border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}
.palette-name { font-size: 11.5px; font-weight: 700; color: var(--text-muted); text-align: center; }

/* Custom Preview inside Modal: 4 columns x 3 rows */
.custom-preview-wrap {
    background: var(--bg-surface); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 16px; margin-bottom: 22px;
    display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.preview-board {
    width: 190px;
    background: var(--board-front); border: 2.5px solid var(--board-border);
    border-radius: 14px; display: grid; grid-template-columns: repeat(4, 1fr);
    padding: 8px; gap: 6px; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    transition: background 0.2s, border-color 0.2s;
}
.preview-cell {
    width: 100%; aspect-ratio: 1 / 1; border-radius: 50%;
    background: rgba(14, 5, 22, 0.9);
    box-shadow: inset 0 3px 6px rgba(0, 0, 0, 0.7);
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
}
.preview-cell::after {
    content: ''; position: absolute; inset: 0; border-radius: 50%;
    box-shadow: inset 0 3px 6px rgba(0, 0, 0, 0.65), inset 0 -1px 2px rgba(255, 255, 255, 0.15);
    pointer-events: none; z-index: 3;
}
.preview-disc {
    width: 90%; height: 90%; border-radius: 50%; z-index: 2; position: relative;
}

.option-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 0; border-bottom: 1px solid var(--border);
    font-size: 14px; font-weight: 700;
}
.option-row:last-child { border-bottom: none; }

/* Switch toggle */
.switch {
    appearance: none; width: 44px; height: 24px;
    background: var(--bg-surface); border: 1px solid var(--border);
    border-radius: 12px; cursor: pointer; position: relative;
    transition: all 0.2s;
}
.switch::after {
    content: ''; position: absolute; top: 2px; left: 2px;
    width: 18px; height: 18px; border-radius: 50%;
    background: var(--text-muted); transition: transform 0.2s;
}
.switch:checked {
    background: var(--accent); border-color: var(--accent);
}
.switch:checked::after {
    transform: translateX(20px); background: #FFFFFF;
}

/* Seg buttons */
.seg {
    display: inline-flex; background: var(--bg-surface); border: 1px solid var(--border);
    border-radius: 8px; padding: 2px;
}
.seg button {
    background: none; border: none; padding: 6px 12px;
    border-radius: 6px; font-size: 12.5px; font-weight: 800;
    color: var(--text-muted); cursor: pointer; transition: all 0.15s;
}
.seg button.active { background: var(--accent); color: #FFFFFF; }

/* Toast */
.toast {
    position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
    background: var(--bg-card); border: 1px solid var(--accent);
    color: var(--text); padding: 12px 24px; border-radius: 24px;
    font-size: 14px; font-weight: 700; box-shadow: var(--shadow);
    z-index: 200; opacity: 0; pointer-events: none;
    transition: all 0.25s var(--ease);
}
.toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Game over modal */
.gameover-content { text-align: center; }
.gameover-icon {
    width: 68px; height: 68px; border-radius: 50%;
    background: var(--accent-soft); color: var(--accent-light);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px;
}
.gameover-content h2 { font-size: 26px; font-weight: 900; color: #FFFFFF; margin-bottom: 6px; }
.score-line { font-size: 15px; font-weight: 800; color: var(--accent-light); margin: 12px 0; }
.gameover-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }

/* Backdrop for Mobile Chat/Drawer */
.chat-backdrop {
    display: none; position: fixed; inset: 0; background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px); z-index: 45;
}
.chat-backdrop.open { display: block; }

/* Responsive adjustments */
@media (max-width: 860px) {
    .game-body { grid-template-columns: 1fr; }
    .side-panel {
        position: fixed; bottom: 0; left: 0; right: 0; height: 55vh;
        z-index: 50; transform: translateY(100%); transition: transform 0.3s var(--ease);
        box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.6);
    }
    .side-panel.open { transform: translateY(0); }
    .lang-selector { display: none; }
    .lang-toggle { display: inline-flex; }
}

@media (max-width: 480px) {
    .lobby-panel { padding: 22px 18px; }
    .logo-title { font-size: 32px; }
    .board-area { padding: 12px 10px; }
    .palette-grid { grid-template-columns: repeat(2, 1fr); }
    .game-header { padding-left: 12px; padding-right: 12px; }
}