:root {
    --bg-color: #0b0c10;
    --panel-bg: rgba(20, 22, 28, 0.85);
    --grid-color: rgba(255, 255, 255, 0.08);
    --text-color: #ffffff;
    --accent-red: #ff4a4a;
    --accent-green: #6EFE36;
    --accent-blue: #33ccff;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at center top, #1f222b 0%, #0b0c10 100%);
    color: var(--text-color);
    font-family: 'Outfit', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

#app {
    display: flex;
    flex-direction: row;
    justify-content: center;
    gap: 15px;
    align-items: center;
}

.panel {
    display: flex;
    flex-direction: column;
    width: 160px;
    background: var(--panel-bg);
    border: 3px solid rgba(255, 255, 255, 0.9);
    padding: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    backdrop-filter: blur(12px);
}

/* TETR.IO style cut corners */
.corner-cut-top-left {
    clip-path: polygon(20px 0, 100% 0, 100% 100%, 0 100%, 0 20px);
    border-top-left-radius: 0 !important;
}

.corner-cut-bottom-right {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
    border-bottom-right-radius: 0 !important;
}

.box-title {
    font-size: 1.4rem;
    font-weight: 900;
    text-transform: uppercase;
    text-align: right;
    border-bottom: 2px solid rgba(255,255,255,0.2);
    margin-bottom: 10px;
    padding-bottom: 5px;
}

.piece-box {
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0,0,0,0.5);
    border: 1px inset rgba(255,255,255,0.1);
}

.next-box {
    height: 400px;
}

#board-container {
    position: relative;
    border: 4px solid #fff;
    background: rgba(0, 0, 0, 0.8);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.9);
}

canvas#game-canvas {
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 30px 30px; 
    display: block;
}

.stats-box {
    text-align: right;
    margin-top: 20px;
}

.stat-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: #888;
}

.stat-value {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 10px;
}

/* SCORE TO BEAT */
#s2b-container {
    margin-top: 30px;
    background: rgba(255, 74, 74, 0.15);
    border-left: 4px solid var(--accent-red);
    padding: 10px;
    text-align: right;
    transition: all 0.3s;
}

#s2b-container.beaten {
    background: rgba(110, 254, 54, 0.15);
    border-color: var(--accent-green);
}

.s2b-label {
    font-size: 0.65rem;
    font-weight: 900;
    color: var(--accent-red);
    text-transform: uppercase;
}

#s2b-container.beaten .s2b-label { color: var(--accent-green); }

.s2b-value {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--accent-red);
    margin: 5px 0;
}

#s2b-container.beaten .s2b-value { color: var(--accent-green); }

#action-text {
    position: absolute;
    top: 40%;
    width: 100%;
    text-align: center;
    font-size: 1.6rem;
    font-weight: 900;
    color: white;
    text-shadow: 0 0 10px #fff, 0 0 20px rgba(255,200,0,0.8);
    opacity: 0;
    transform: scale(0.8) translateY(20px);
    transition: all 0.2s ease-out;
    pointer-events: none;
    letter-spacing: 2px;
}

#action-text.show {
    opacity: 1;
    transform: scale(1) translateY(0);
}

#game-over-screen {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(8px);
}

#game-over-screen.hidden { display: none; }
#game-over-screen h1 { color: var(--accent-red); font-size: 3rem; }
#restart-btn {
    margin-top: 20px;
    background: white;
    color: black;
    border: none;
    padding: 10px 20px;
    font-weight: 900;
    cursor: pointer;
    font-family: 'Outfit', sans-serif;
}

/* ═══════════════ Screens ═══════════════ */
.screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100vw;
    height: 100vh;
    position: absolute;
    top: 0;
    left: 0;
}
.hidden { display: none !important; }
.screen.hidden {
    display: none !important;
}

.screen-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 30px;
    letter-spacing: 3px;
}

/* ═══════════════ Main Menu ═══════════════ */
#main-menu {
    background-image: radial-gradient(circle at center, #1a1c23 0%, #0b0c10 100%);
}
.game-title {
    font-size: 5rem;
    font-weight: 900;
    letter-spacing: 5px;
    margin-bottom: 50px;
    text-shadow: 0 0 20px rgba(255, 74, 74, 0.5);
}
.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 320px;
}
.menu-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 2px solid rgba(255, 255, 255, 0.25);
    color: white;
    padding: 14px 20px;
    font-size: 1rem;
    font-weight: 700;
    font-family: 'Outfit', sans-serif;
    cursor: pointer;
    transition: all 0.15s;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.menu-btn:hover {
    background: white;
    color: black;
    transform: translateX(6px);
    border-color: white;
}
.timer-box {
    margin-top: 20px;
    text-align: right;
}
#records-content {
    background: rgba(0,0,0,0.8);
    padding: 20px;
    margin: 20px;
    width: 420px;
    max-height: 400px;
    overflow-y: auto;
    font-family: monospace;
    border: 1px solid rgba(255,255,255,0.15);
}
.results-stats p {
    font-size: 1.5rem;
    margin: 10px;
}

/* ═══════════════ Settings Panel ═══════════════ */
.settings-panel {
    background: rgba(15, 17, 22, 0.95);
    border: 2px solid rgba(255,255,255,0.15);
    padding: 30px;
    width: 560px;
    max-height: 70vh;
    overflow-y: auto;
    margin-bottom: 20px;
}

.setting-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.setting-info { flex: 1; }
.setting-name {
    font-size: 1rem;
    font-weight: 900;
    letter-spacing: 2px;
    color: var(--accent-blue);
}
.setting-desc {
    font-size: 0.75rem;
    color: #777;
    margin-top: 4px;
}

.setting-control {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 200px;
    justify-content: flex-end;
}

input[type="range"] {
    -webkit-appearance: none;
    width: 130px;
    height: 4px;
    background: rgba(255,255,255,0.15);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-blue);
    cursor: pointer;
    box-shadow: 0 0 8px rgba(51,204,255,0.6);
}

.setting-val {
    font-size: 1.2rem;
    font-weight: 900;
    color: white;
    min-width: 30px;
    text-align: right;
}
.setting-unit {
    font-size: 0.8rem;
    color: #666;
}

.toggle-btn {
    background: var(--accent-green);
    border: none;
    color: black;
    font-family: 'Outfit', sans-serif;
    font-weight: 900;
    font-size: 0.9rem;
    padding: 8px 20px;
    cursor: pointer;
    letter-spacing: 1px;
    transition: all 0.2s;
}
.toggle-btn.off {
    background: rgba(255,255,255,0.1);
    color: #888;
}

.settings-keybinds {
    margin-top: 20px;
    padding-top: 15px;
}
.settings-keybinds h3 {
    font-size: 0.85rem;
    letter-spacing: 3px;
    color: #666;
    margin-bottom: 15px;
}
.keybind-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px 20px;
    font-size: 0.85rem;
    color: #aaa;
}
.keybind-btn {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 4px;
    padding: 2px 8px;
    font-family: monospace;
    font-size: 0.8rem;
    color: white;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 60px;
}
.keybind-btn:hover {
    background: rgba(255,255,255,0.2);
    border-color: white;
}
.keybind-btn.listening {
    background: var(--accent-blue);
    color: black;
    border-color: var(--accent-blue);
    animation: pulse 1s infinite;
}

/* ═══════════════ Multiplayer Lobby ═══════════════ */
.mp-status-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 25px;
    font-size: 0.85rem;
    color: #888;
}
.mp-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #555;
}
.mp-dot.connecting { background: #f5c518; animation: pulse 1s infinite; }
.mp-dot.connected { background: var(--accent-green); }
.mp-dot.error { background: var(--accent-red); }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.mp-lobby {
    display: flex;
    gap: 30px;
    align-items: flex-start;
    margin-bottom: 25px;
}

.mp-card {
    background: rgba(255,255,255,0.04);
    border: 2px solid rgba(255,255,255,0.12);
    padding: 25px;
    width: 240px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.mp-card h3 {
    font-size: 1.1rem;
    letter-spacing: 2px;
    color: var(--accent-blue);
}
.mp-card p {
    font-size: 0.8rem;
    color: #777;
}
.mp-divider {
    display: flex;
    align-items: center;
    color: #555;
    font-weight: 900;
    font-size: 1.2rem;
    padding-top: 50px;
}

#mp-room-code {
    background: rgba(0,0,0,0.5);
    border: 2px solid rgba(255,255,255,0.2);
    color: white;
    padding: 10px;
    font-size: 1.5rem;
    font-weight: 900;
    font-family: 'Outfit', monospace;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 6px;
    width: 100%;
}
#mp-room-code:focus { outline: none; border-color: var(--accent-blue); }

.mp-waiting {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    color: #aaa;
}
.mp-waiting.hidden { display: none; }

.mp-room-code-display {
    text-align: center;
}
.mp-room-label {
    font-size: 0.75rem;
    letter-spacing: 3px;
    color: #666;
    margin-bottom: 10px;
}
.mp-room-code-value {
    font-size: 4rem;
    font-weight: 900;
    letter-spacing: 12px;
    color: var(--accent-blue);
    text-shadow: 0 0 20px rgba(51,204,255,0.5);
}
.mp-room-hint {
    font-size: 0.8rem;
    color: #555;
    margin-top: 8px;
}

.mp-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255,255,255,0.1);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══════════════ Multiplayer Game ═══════════════ */
#app-mp {
    gap: 0;
}

.mp-game-wrapper {
    display: flex;
    align-items: center;
    gap: 30px;
}

.mp-player-side {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.mp-player-label {
    font-size: 0.85rem;
    font-weight: 900;
    letter-spacing: 3px;
    color: var(--accent-green);
}

.mp-opponent .mp-player-label {
    color: var(--accent-red);
}

.mp-board-container {
    position: relative;
    border: 3px solid rgba(255,255,255,0.6);
    background: rgba(0,0,0,0.8);
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 20px 20px;
}

.garbage-alert {
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255,74,74,0.9);
    color: white;
    font-weight: 900;
    font-size: 0.7rem;
    padding: 3px 8px;
    letter-spacing: 1px;
    animation: flash 0.3s ease-out;
}
.garbage-alert.hidden { display: none; }

.mp-stats {
    display: flex;
    gap: 15px;
    font-size: 0.85rem;
    color: #aaa;
    font-weight: 700;
}

.mp-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.vs-badge {
    font-size: 2rem;
    font-weight: 900;
    color: #555;
    letter-spacing: 2px;
}

.mp-timer {
    font-size: 1.5rem;
    font-weight: 900;
    color: white;
    font-variant-numeric: tabular-nums;
    min-width: 120px;
    text-align: center;
}

.mp-result-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    backdrop-filter: blur(10px);
}
.mp-result-overlay.hidden { display: none; }

#mp-result-text {
    font-size: 5rem;
    font-weight: 900;
    letter-spacing: 8px;
    animation: pop-in 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
}

/* Mini Lobby Styling */
.lobby-player {
    background: var(--bg-card);
    padding: 20px;
    border-radius: 8px;
    width: 250px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
}

.lobby-player h3 {
    margin: 0 0 10px 0;
    font-size: 1.5rem;
}

.lobby-player p {
    margin: 0;
    color: #888;
    font-weight: 700;
}
@keyframes pop-in {
    from { transform: scale(0.5); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}