:root {
    --bg-color: #121212;
    --surface-color: #1e1e1e;
    --surface-light: #2c2c2c;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-color: #ff4d4d;
    /* Default accent */

    /* Qwirkle Colors */
    --color-red: #FF4136;
    --color-orange: #FF851B;
    --color-yellow: #FFDC00;
    --color-green: #2ECC40;
    --color-blue: #0074D9;
    --color-purple: #B10DC9;

    --font-main: 'Inter', sans-serif;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    /* Fix for mobile viewport height issues */
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    /* App-like feel */
}

#app {
    height: 100%;
    width: 100%;
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
}

/* Views */
.view {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    display: flex;
    flex-direction: column;
}

.view.active {
    opacity: 1;
    pointer-events: all;
    z-index: 1;
}

.container {
    padding: var(--spacing-lg);
    /* Add extra padding at bottom for safety */
    padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom) + 20px);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    /* Important for nested flex scrolling */
}

/* Setup View */
.setup-header {
    text-align: center;
    margin-top: 40px;
    margin-bottom: 40px;
}

.setup-header h1 {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
    background: linear-gradient(45deg, var(--color-red), var(--color-orange), var(--color-yellow), var(--color-green), var(--color-blue), var(--color-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
    font-weight: 600;
}

.player-input-group {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

input[type="text"],
input[type="number"] {
    background: var(--surface-color);
    border: 1px solid var(--surface-light);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

input[type="text"] {
    flex: 1;
}

input:focus {
    border-color: var(--color-blue);
}

.btn-icon {
    background: var(--color-green);
    border: none;
    color: white;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.1s;
}

.btn-icon:active {
    transform: scale(0.95);
}

.player-list {
    list-style: none;
    flex: 1;
    overflow-y: auto;
    margin-bottom: var(--spacing-lg);
}

.player-item {
    background: var(--surface-color);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slideIn 0.3s ease-out;
    border-left: 4px solid transparent;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.player-item .remove-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0 8px;
}

.player-item .remove-btn:hover {
    color: var(--color-red);
}

.action-area {
    margin-top: auto;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-color);
    border: none;
    padding: 16px;
    width: 100%;
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-primary:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.btn-primary:not(:disabled):active {
    opacity: 0.8;
}

.btn-secondary {
    background: var(--surface-light);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Game View */
.game-header {
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    z-index: 10;
}

.btn-text {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
}

.turn-indicator {
    font-weight: 600;
    font-size: 1.1rem;
}

#current-player-name {
    color: var(--accent-color);
}

.scoreboard-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    position: relative;
    min-height: 0;
    /* Important for nested flex scrolling */
}

.scoreboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: 100px;
    /* Space for input controls */
}

.score-column {
    background: var(--surface-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    text-align: center;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    border-top: 4px solid transparent;
    transition: transform 0.2s;
}

.score-column.active {
    background: var(--surface-light);
    transform: scale(1.05);
    box-shadow: 0 0 15px var(--accent-color);
    border: 2px solid var(--accent-color);
    z-index: 1;
}

.score-column h3 {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.total-score {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.score-history {
    flex: 1;
    overflow-y: auto;
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.score-entry {
    display: flex;
    justify-content: space-between;
    padding: 2px 4px;
}

.score-entry.latest {
    color: var(--text-primary);
    font-weight: 600;
}

.input-controls {
    background: var(--surface-color);
    padding: var(--spacing-md);
    /* Add extra padding at bottom for safety */
    padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom) + 10px);
    border-top-left-radius: var(--radius-lg);
    border-top-right-radius: var(--radius-lg);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
}

.score-input-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

#score-input {
    width: 80px;
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--text-secondary);
    border-radius: 0;
    padding: 4px;
}

#score-input:focus {
    border-color: var(--text-primary);
}

.btn-adjust {
    background: var(--surface-light);
    border: none;
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
}

.quick-adds {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: var(--spacing-md);
    scrollbar-width: none;
}

.quick-adds::-webkit-scrollbar {
    display: none;
}

.btn-chip {
    background: var(--surface-light);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 20px;
    white-space: nowrap;
    cursor: pointer;
    font-weight: 600;
    flex-shrink: 0;
}

.btn-chip.special {
    background: linear-gradient(45deg, var(--color-purple), var(--color-blue));
    border: none;
}

.submit-area {
    display: flex;
    gap: var(--spacing-sm);
}

.submit-area .btn-primary {
    flex: 1;
}

.btn-secondary.icon-only {
    padding: 0;
    width: 56px;
    /* Match height of primary button approx */
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.modal.visible {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background: var(--surface-color);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
    width: 90%;
    max-width: 400px;
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal.visible .modal-content {
    transform: scale(1);
}

.winner-avatar {
    font-size: 4rem;
    margin: 20px 0;
}

#winner-name {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--color-yellow);
}

#winner-score {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.hidden {
    display: none !important;
}

.app-footer {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-md);
    opacity: 0.7;
}