/* ========================================
   Emoji Charades - Mobile-First Styles
   Local Multiplayer Party Game
   ======================================== */

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

/* CSS Variables */
:root {
    --color-primary: #6C5CE7;
    --color-primary-dark: #5B4BC7;
    --color-secondary: #A29BFE;
    --color-accent: #FDCB6E;
    --color-success: #00B894;
    --color-error: #D63031;
    --color-warning: #E17055;
    --color-bg: #1A1A2E;
    --color-surface: #16213E;
    --color-surface-light: #0F3460;
    --color-text: #FFFFFF;
    --color-text-muted: #A0A0A0;

    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition-speed: 0.2s;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    min-height: 100dvh;
    line-height: 1.5;
    overflow-x: hidden;
}

/* Screen System */
.screen {
    display: none;
    min-height: 100vh;
    min-height: 100dvh;
    padding: var(--spacing-md);
}

.screen.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: var(--spacing-xl);
}

.container {
    width: 100%;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.container.centered {
    justify-content: center;
    min-height: calc(100vh - 64px);
    min-height: calc(100dvh - 64px);
}

.game-container {
    gap: var(--spacing-md);
}

/* Header & Logo */
.header {
    text-align: center;
}

.logo {
    font-size: 64px;
    margin-bottom: var(--spacing-sm);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
}

.subtitle {
    color: var(--color-text-muted);
    font-size: 1rem;
}

/* Form Elements */
.setup-form {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    width: 100%;
}

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

input[type="text"] {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 1rem;
    background: var(--color-surface);
    border: 2px solid var(--color-surface-light);
    border-radius: var(--border-radius);
    color: var(--color-text);
    outline: none;
    transition: border-color var(--transition-speed);
}

input[type="text"]:focus {
    border-color: var(--color-primary);
}

input[type="text"]::placeholder {
    color: var(--color-text-muted);
}

/* Timer Config */
.timer-config {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-surface);
    border-radius: var(--border-radius);
}

.timer-config > label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.timer-options {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.timer-btn {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-weight: 600;
    background: var(--color-surface-light);
    border: 2px solid transparent;
    border-radius: var(--border-radius-sm);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-speed);
}

.timer-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    min-height: 52px;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-speed);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn-large {
    min-height: 60px;
    font-size: 1.125rem;
}

.btn-small {
    min-height: 44px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    width: auto;
}

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

.btn-primary:hover,
.btn-primary:active {
    background: var(--color-primary-dark);
    transform: scale(0.98);
}

.btn-secondary {
    background: var(--color-surface-light);
    color: var(--color-text);
}

.btn-secondary:hover,
.btn-secondary:active {
    background: var(--color-surface);
    transform: scale(0.98);
}

.btn-success {
    background: var(--color-success);
    color: var(--color-text);
}

.btn-success:active {
    background: #00a383;
    transform: scale(0.98);
}

.btn-error {
    background: var(--color-error);
    color: var(--color-text);
}

.btn-error:active {
    background: #c02828;
    transform: scale(0.98);
}

.btn-icon {
    font-size: 1.25rem;
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    transition: color var(--transition-speed);
}

.btn-link:hover {
    color: var(--color-text);
}

.btn-link.btn-danger {
    color: var(--color-error);
}

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

.button-group {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Game Header */
.game-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-surface);
    border-radius: var(--border-radius);
}

.turn-info {
    font-size: 0.9rem;
    font-weight: 500;
}

.score-display {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-accent);
}

/* Category Grid */
.category-grid {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.btn-category {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--color-surface);
    border: 2px solid var(--color-surface-light);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-speed);
}

.btn-category:hover,
.btn-category:active {
    background: var(--color-surface-light);
    border-color: var(--color-primary);
    transform: scale(0.98);
}

.btn-category.btn-random {
    grid-column: span 2;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-color: transparent;
}

.category-icon {
    font-size: 2rem;
}

.category-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
}

/* Ready Screen */
.ready-icon {
    font-size: 4rem;
    animation: shake 0.5s ease-in-out infinite;
}

@keyframes shake {
    0%, 100% { transform: rotate(-5deg); }
    50% { transform: rotate(5deg); }
}

.ready-category {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--border-radius);
    font-size: 1.25rem;
    font-weight: 600;
}

.ready-hint {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    text-align: center;
}

/* Timer Display */
.timer-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.timer-display.hidden {
    display: none;
}

.timer-display.warning {
    color: var(--color-warning);
}

.timer-display.danger {
    color: var(--color-error);
    animation: pulse 0.5s ease-in-out infinite;
}

.timer-large {
    font-size: 3rem;
    padding: var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--border-radius);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Word Display */
.word-display {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--border-radius);
    width: 100%;
}

.word-display .label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.word {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-accent);
    text-transform: uppercase;
    word-break: break-word;
}

/* Emoji Input Section */
.emoji-input-section {
    width: 100%;
    text-align: center;
}

.emoji-input-section .label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.emoji-display {
    width: 100%;
    min-height: 60px;
    padding: var(--spacing-md);
    background: var(--color-surface);
    border: 2px solid var(--color-surface-light);
    border-radius: var(--border-radius);
    font-size: 2rem;
    line-height: 1.5;
    word-break: break-all;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 4px;
}

.emoji-count {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* Emoji Picker */
.emoji-picker {
    width: 100%;
    background: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm);
}

.emoji-categories {
    display: flex;
    gap: var(--spacing-xs);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-surface-light);
    margin-bottom: var(--spacing-sm);
    overflow-x: auto;
    scrollbar-width: none;
}

.emoji-categories::-webkit-scrollbar {
    display: none;
}

.category-btn {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
    background: var(--color-surface-light);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-speed);
}

.category-btn.active {
    background: var(--color-primary);
    transform: scale(1.1);
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: var(--spacing-xs);
    max-height: 160px;
    overflow-y: auto;
    padding: var(--spacing-xs);
}

.emoji-btn {
    width: 100%;
    aspect-ratio: 1;
    font-size: 1.5rem;
    background: transparent;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
}

.emoji-btn:hover,
.emoji-btn:active {
    background: var(--color-surface-light);
    transform: scale(1.2);
}

/* Action Buttons */
.action-buttons {
    width: 100%;
    display: flex;
    gap: var(--spacing-md);
}

.action-buttons .btn-secondary {
    flex-shrink: 0;
    width: auto;
}

.action-buttons .btn-primary {
    flex: 1;
}

/* Guess Screen */
.emoji-clue-display {
    width: 100%;
    padding: var(--spacing-xl);
    background: var(--color-surface);
    border-radius: var(--border-radius);
}

.emoji-clue {
    font-size: 3rem;
    line-height: 1.5;
    word-break: break-all;
    text-align: center;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
}

.guess-hint {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    text-align: center;
}

.guess-buttons {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.word-reveal {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-surface);
    border-radius: var(--border-radius);
    color: var(--color-text-muted);
    text-align: center;
}

.word-reveal strong {
    color: var(--color-accent);
    text-transform: uppercase;
}

.word-reveal.hidden {
    display: none;
}

/* Results Screen */
.results-icon {
    font-size: 5rem;
    animation: celebrate 1s ease-out;
}

@keyframes celebrate {
    0% { transform: scale(0) rotate(-45deg); }
    50% { transform: scale(1.3) rotate(15deg); }
    100% { transform: scale(1) rotate(0); }
}

.final-scores {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: var(--color-surface);
    border-radius: var(--border-radius);
    width: 100%;
}

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

.final-score-item .team-name {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.final-score-item .team-score {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
}

.score-divider {
    font-size: 2rem;
    color: var(--color-text-muted);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 1000;
    padding: var(--spacing-md);
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    width: 100%;
    max-width: 400px;
    background: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-muted);
    cursor: pointer;
    line-height: 1;
}

.modal-content h2 {
    margin-bottom: var(--spacing-lg);
}

/* Help Section */
.help-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.help-step {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.help-step p {
    color: var(--color-text-muted);
    margin-top: 4px;
}

.help-step strong {
    color: var(--color-text);
}

.help-example {
    padding: var(--spacing-md);
    background: var(--color-surface-light);
    border-radius: var(--border-radius-sm);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.help-example p:first-child {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.example-word {
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.example-emoji {
    font-size: 1.5rem;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--border-radius);
    color: var(--color-text);
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 1001;
    transition: opacity var(--transition-speed);
}

.toast.hidden {
    opacity: 0;
    pointer-events: none;
}

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

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

/* Responsive - Tablet and Desktop */
@media (min-width: 768px) {
    .container {
        max-width: 500px;
    }

    h1 {
        font-size: 2.5rem;
    }

    .emoji-grid {
        grid-template-columns: repeat(10, 1fr);
        max-height: 200px;
    }

    .emoji-btn {
        font-size: 1.75rem;
    }

    .emoji-clue {
        font-size: 4rem;
    }
}

/* Safe Area for notched phones */
@supports (padding: max(0px)) {
    .screen {
        padding-left: max(var(--spacing-md), env(safe-area-inset-left));
        padding-right: max(var(--spacing-md), env(safe-area-inset-right));
        padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom));
    }
}