/* ============================================
   CSS Variables - Tute Classic Style
   ============================================ */
:root {
    /* Main colors - Classic Spanish table */
    --color-primary: #1B5E20;
    --color-secondary: #5D4037;
    --color-accent: #FFC107;

    /* Cards */
    --color-card-bg: #FFFDE7;
    --color-card-espada: #1565C0;
    --color-card-basto: #2E7D32;
    --color-card-oro: #F9A825;
    --color-card-copa: #C62828;
    --color-card-border: #D4C5A9;

    /* States */
    --color-my-turn: #4CAF50;
    --color-valid-card: #81C784;
    --color-invalid-card: #EF5350;
    --color-trump: #FFD54F;
    --color-highlight: #FFD700;

    /* UI */
    --color-bg: #1B3A1B;
    --color-bg-light: #2D5A27;
    --color-surface: #FFFFFF;
    --color-text: #FFFFFF;
    --color-text-dark: #333333;
    --color-text-secondary: #A5D6A7;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;

    /* Card dimensions - Mobile first */
    --card-width: 42px;
    --card-height: 63px;
    --card-width-lg: 55px;
    --card-height-lg: 82px;
}

/* ============================================
   Reset & Base
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: linear-gradient(180deg, var(--color-bg) 0%, #0D1F0D 100%);
    color: var(--color-text);
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

/* ============================================
   Screen System
   ============================================ */
.screen {
    display: none;
    position: fixed;
    inset: 0;
    overflow-y: auto;
}

.screen.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 360px;
    padding: var(--spacing-lg);
    text-align: center;
}

/* ============================================
   Typography
   ============================================ */
.title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.subtitle {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-dark);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: block;
    width: 100%;
    padding: var(--spacing-md);
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 52px;
    touch-action: manipulation;
}

.btn:active:not(:disabled) {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: #145216;
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text-dark);
    border: 2px solid #E0E0E0;
}

.btn-secondary:hover:not(:disabled) {
    background: #F5F5F5;
}

.btn-success {
    background: var(--color-my-turn);
    color: white;
}

.btn-danger {
    background: var(--color-invalid-card);
    color: white;
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-accent);
    font-size: 0.9rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    text-decoration: underline;
}

.btn-canto {
    background: var(--color-accent);
    color: var(--color-text-dark);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
    min-height: 40px;
    width: auto;
    border-radius: 20px;
    font-weight: 700;
}

.buttons-stack {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

/* ============================================
   Form Elements
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-secondary);
}

input[type="text"] {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 12px;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
    background: rgba(255,255,255,0.1);
    color: white;
}

input[type="text"]::placeholder {
    color: rgba(255,255,255,0.5);
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(255,255,255,0.15);
}

.input-code {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

/* Mode Selector */
.mode-selector {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mode-option {
    cursor: pointer;
}

.mode-option input {
    display: none;
}

.mode-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255,255,255,0.1);
    border: 2px solid transparent;
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.mode-option input:checked + .mode-label {
    background: rgba(255,255,255,0.2);
    border-color: var(--color-accent);
}

.mode-icon {
    font-size: 1.2rem;
}

.mode-text {
    font-size: 0.9rem;
}

/* ============================================
   Room Code Display
   ============================================ */
.room-code-display {
    background: rgba(255,255,255,0.1);
    border-radius: 16px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

#room-code {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    font-family: 'SF Mono', 'Monaco', monospace;
}

.waiting-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   Players List
   ============================================ */
.players-list {
    background: rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.player-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
}

.player-item:not(:last-child) {
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.player-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
}

.player-ready .player-icon {
    color: var(--color-my-turn);
}

.player-waiting {
    color: var(--color-text-secondary);
}

.player-slot {
    flex: 1;
    text-align: left;
}

.player-team {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.spinner-small {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   Game Screen Layout
   ============================================ */
#screen-game {
    background: linear-gradient(180deg, var(--color-bg) 0%, #0D1F0D 100%);
    justify-content: flex-start;
    padding: 0;
}

.game-container {
    width: 100%;
    height: 100%;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-xs);
    position: relative;
    overflow: hidden;
}

/* Opponents Area */
.opponents-area {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xs);
    flex-wrap: wrap;
}

.opponent {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.opponent-name {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    max-width: 80px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.opponent-name.current-turn {
    color: var(--color-accent);
    font-weight: 600;
}

.opponent-hand {
    display: flex;
    gap: 2px;
    justify-content: center;
}

.opponent-hand .card-back {
    width: 28px;
    height: 42px;
    background: linear-gradient(135deg, #1E3A8A 0%, #3B5998 100%);
    border-radius: 3px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.opponent-points {
    font-size: 0.7rem;
    color: var(--color-accent);
}

/* Middle Area: Trump and Table */
.middle-area {
    flex: 1;
    display: flex;
    gap: var(--spacing-sm);
    min-height: 0;
    padding: var(--spacing-xs);
}

.trump-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: rgba(0,0,0,0.2);
    border-radius: 12px;
    width: 70px;
}

.trump-label {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.trump-card {
    position: relative;
}

.trump-card .card {
    box-shadow: 0 0 8px var(--color-trump);
}

.trump-card .card-back {
    width: var(--card-width);
    height: var(--card-height);
    background: linear-gradient(135deg, #1E3A8A 0%, #3B5998 100%);
    border-radius: 4px;
    position: absolute;
    top: 4px;
    left: 4px;
    z-index: -1;
}

.deck-count {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    background: rgba(0,0,0,0.3);
    padding: 2px 8px;
    border-radius: 8px;
}

.table-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.15);
    border-radius: 12px;
    padding: var(--spacing-sm);
    min-height: 120px;
}

.table-label {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-xs);
}

.table-cards {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    align-items: center;
}

.table-play {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.table-play .player-label {
    font-size: 0.65rem;
    color: var(--color-text-secondary);
}

.table-play.winner .card {
    box-shadow: 0 0 8px var(--color-my-turn);
}

/* Scores Area */
.scores-area {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xs);
    font-size: 0.75rem;
}

.score-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(0,0,0,0.3);
    padding: 4px 10px;
    border-radius: 12px;
}

.score-name {
    color: var(--color-text-secondary);
}

.score-value {
    color: var(--color-accent);
    font-weight: 700;
}

.score-item.teams {
    background: rgba(255,255,255,0.1);
}

/* Turn Indicator */
.turn-indicator {
    text-align: center;
    padding: var(--spacing-xs);
}

.turn-text {
    color: white;
    font-weight: 600;
    font-size: 0.85rem;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    background: rgba(0, 0, 0, 0.3);
    display: inline-block;
}

.turn-indicator.my-turn .turn-text {
    background: var(--color-my-turn);
    animation: pulse-turn 1.5s ease-in-out infinite;
}

.turn-indicator.waiting .turn-text {
    background: rgba(255,255,255,0.2);
}

@keyframes pulse-turn {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Canto Area */
.canto-area {
    text-align: center;
    padding: var(--spacing-xs);
}

/* My Area */
.my-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-sm);
    padding-bottom: env(safe-area-inset-bottom, var(--spacing-sm));
}

.my-hand {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    max-width: 100%;
}

.my-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

#my-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.my-points {
    font-size: 0.8rem;
    color: var(--color-accent);
    background: rgba(0,0,0,0.3);
    padding: 2px 10px;
    border-radius: 10px;
}

/* ============================================
   Cards
   ============================================ */
.card {
    width: var(--card-width);
    height: var(--card-height);
    background: var(--color-card-bg);
    border: 2px solid var(--color-card-border);
    border-radius: 5px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
    position: relative;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    flex-shrink: 0;
}

.card .card-number {
    font-size: 0.9rem;
    line-height: 1;
}

.card .card-suit {
    font-size: 0.8rem;
    margin-top: 1px;
}

/* Suit colors */
.card.espada {
    color: var(--color-card-espada);
}

.card.basto {
    color: var(--color-card-basto);
}

.card.oro {
    color: var(--color-card-oro);
}

.card.copa {
    color: var(--color-card-copa);
}

/* Card states */
.card.playable:not(.disabled) {
    cursor: pointer;
}

.card.playable:not(.disabled):hover {
    transform: translateY(-6px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.card.playable:not(.disabled):active {
    transform: translateY(-3px) scale(0.98);
}

.card.valid {
    box-shadow: 0 0 0 2px var(--color-valid-card);
}

.card.invalid {
    opacity: 0.4;
    cursor: not-allowed !important;
}

.card.invalid:hover {
    transform: none !important;
}

.card.selected {
    transform: translateY(-10px);
    box-shadow: 0 0 0 3px var(--color-highlight), 0 8px 16px rgba(0, 0, 0, 0.3);
}

.card.trump-suit {
    border-color: var(--color-trump);
}

.card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Table card - slightly larger */
.table-cards .card {
    width: var(--card-width-lg);
    height: var(--card-height-lg);
}

.table-cards .card .card-number {
    font-size: 1.1rem;
}

.table-cards .card .card-suit {
    font-size: 1rem;
}

/* Card animation for playing */
@keyframes play-card {
    0% { transform: scale(1); }
    50% { transform: scale(1.1) translateY(-20px); }
    100% { transform: scale(1) translateY(0); }
}

.card.playing {
    animation: play-card 0.3s ease;
}

/* ============================================
   Modal
   ============================================ */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 100;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--color-surface);
    border-radius: 16px;
    padding: var(--spacing-lg);
    width: 100%;
    max-width: 320px;
    max-height: 90vh;
    overflow-y: auto;
    text-align: center;
    color: var(--color-text-dark);
}

/* Canto Modal */
.canto-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.canto-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: #F5F5F5;
    border: 2px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.canto-option:hover {
    background: #E8E8E8;
}

.canto-option.las-40 {
    background: linear-gradient(90deg, #FFF9C4 0%, #FFE082 100%);
    border-color: var(--color-accent);
}

.canto-palo {
    font-size: 1.2rem;
}

.canto-puntos {
    font-weight: 700;
    color: var(--color-primary);
}

.canto-option.las-40 .canto-puntos {
    color: var(--color-secondary);
}

/* Tute Modal */
.modal-tute {
    background: linear-gradient(135deg, #1B5E20 0%, #0D1F0D 100%);
    color: white;
}

.tute-animation {
    margin-bottom: var(--spacing-lg);
}

.tute-emoji {
    font-size: 4rem;
    display: block;
    margin-bottom: var(--spacing-sm);
    animation: tute-bounce 0.6s ease infinite;
}

@keyframes tute-bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.tute-title {
    font-size: 2.5rem;
    color: var(--color-accent);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    margin-bottom: var(--spacing-xs);
}

.tute-subtitle {
    color: var(--color-text-secondary);
}

.tute-cards {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.tute-winner {
    font-size: 1.1rem;
    color: var(--color-accent);
}

/* Round Modal */
.round-scores {
    margin-bottom: var(--spacing-lg);
}

.round-score-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm);
    border-bottom: 1px solid #E0E0E0;
}

.round-score-row:last-child {
    border-bottom: none;
}

.round-score-name {
    color: var(--color-text-secondary);
}

.round-score-value {
    font-weight: 700;
}

.total-scores {
    background: #F5F5F5;
    border-radius: 12px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.total-score-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
}

.total-score-value {
    font-weight: 700;
    color: var(--color-primary);
}

/* Help Modal */
.modal-help {
    text-align: left;
    max-width: 340px;
}

.modal-help h3 {
    text-align: center;
}

.help-content {
    margin-bottom: var(--spacing-lg);
    max-height: 50vh;
    overflow-y: auto;
}

.help-section {
    margin-bottom: var(--spacing-md);
}

.help-section h4 {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-dark);
}

.help-section p {
    font-size: 0.85rem;
    color: #666;
    line-height: 1.5;
}

/* ============================================
   Result Screen
   ============================================ */
.result-display {
    margin-bottom: var(--spacing-xl);
}

.result-emoji {
    font-size: 4rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.result-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.result-display.win .result-title {
    color: var(--color-my-turn);
}

.result-display.lose .result-title {
    color: var(--color-invalid-card);
}

.result-subtitle {
    color: var(--color-text-secondary);
}

.final-score {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    background: rgba(255,255,255,0.1);
    padding: var(--spacing-lg);
    border-radius: 16px;
    margin-bottom: var(--spacing-xl);
}

.final-score-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.final-score-name {
    color: var(--color-text-secondary);
}

.final-score-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.final-score-row.winner .final-score-value {
    color: var(--color-my-turn);
}

/* ============================================
   Error Screen
   ============================================ */
.error-display {
    margin-bottom: var(--spacing-xl);
}

.error-emoji {
    font-size: 4rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

#error-title {
    color: var(--color-invalid-card);
    margin-bottom: var(--spacing-sm);
}

#error-message {
    color: var(--color-text-secondary);
}

/* ============================================
   Toast
   ============================================ */
#toast-container {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
}

.toast {
    background: rgba(0,0,0,0.9);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    animation: toast-in 0.3s ease, toast-out 0.3s ease 2.7s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
}

.toast-success {
    background: var(--color-my-turn);
}

.toast-error {
    background: var(--color-invalid-card);
}

.toast-info {
    background: var(--color-primary);
}

@keyframes toast-in {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes toast-out {
    from { transform: translateY(0); opacity: 1; }
    to { transform: translateY(-20px); opacity: 0; }
}

/* ============================================
   Responsive
   ============================================ */
@media (min-width: 375px) {
    :root {
        --card-width: 46px;
        --card-height: 69px;
        --card-width-lg: 58px;
        --card-height-lg: 87px;
    }
}

@media (min-width: 414px) {
    :root {
        --card-width: 50px;
        --card-height: 75px;
        --card-width-lg: 62px;
        --card-height-lg: 93px;
    }
}

@media (min-height: 700px) {
    .table-area {
        min-height: 150px;
    }

    .my-hand {
        gap: var(--spacing-sm);
    }
}

@media (min-height: 800px) {
    .table-area {
        min-height: 180px;
    }
}

/* ============================================
   Utilities
   ============================================ */
.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}