/* ========================================
   Emoji Movie - Mobile-first Styles
   ======================================== */

/* CSS Variables */
:root {
    --bg-primary: #1a1a2e;
    --bg-card: #16213e;
    --bg-input: #0f0f1a;
    --accent: #e94560;
    --accent-hover: #ff6b6b;
    --success: #4ecca3;
    --warning: #f9ed69;
    --error: #ff4757;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;

    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --transition: 0.3s ease;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    line-height: 1.5;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 16px;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    margin-bottom: 16px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--text-secondary);
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn-icon:hover,
.btn-icon:active {
    border-color: var(--accent);
    color: var(--accent);
}

/* Screens */
.screen {
    display: none;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.screen.active {
    display: flex;
}

/* Streak Badge */
.streak-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #ff6b6b, #e94560);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    opacity: 0.5;
    transition: var(--transition);
}

.streak-badge.active {
    opacity: 1;
    animation: pulse 0.5s ease;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

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

/* Emoji Card */
.emoji-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow);
    margin-bottom: 16px;
}

.emoji-display {
    font-size: 3.5rem;
    letter-spacing: 8px;
    line-height: 1.4;
    word-break: break-word;
}

/* Progress */
.progress-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

/* Hint Display */
.hint-display {
    background: var(--warning);
    color: #1a1a2e;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 16px;
    text-align: center;
    width: 100%;
}

.hint-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    opacity: 0.7;
    display: block;
    margin-bottom: 4px;
    letter-spacing: 1px;
}

/* Input Area */
.input-area {
    width: 100%;
    margin-bottom: 16px;
}

.answer-input {
    width: 100%;
    padding: 16px 20px;
    font-size: 1.125rem;
    border: 2px solid var(--bg-card);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    text-align: center;
    transition: var(--transition);
    outline: none;
}

.answer-input:focus {
    border-color: var(--accent);
}

.answer-input::placeholder {
    color: var(--text-muted);
}

.answer-input.shake {
    animation: shake 0.4s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px); }
    75% { transform: translateX(8px); }
}

.answer-input.correct {
    border-color: var(--success);
    background: rgba(78, 204, 163, 0.1);
}

.answer-input.wrong {
    border-color: var(--error);
}

/* Feedback */
.feedback {
    text-align: center;
    padding: 8px;
    font-size: 0.9rem;
    margin-top: 8px;
    border-radius: var(--radius-sm);
}

.feedback.error {
    color: var(--error);
}

.feedback.success {
    color: var(--success);
}

/* Buttons */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 48px;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

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

.btn-icon-text {
    font-size: 1.2rem;
}

/* Actions Row */
.actions {
    display: flex;
    gap: 12px;
    width: 100%;
    margin-bottom: 12px;
}

.btn-hint {
    flex: 1;
    background: var(--bg-card);
    color: var(--warning);
    border: 2px solid var(--warning);
}

.btn-hint:hover:not(:disabled),
.btn-hint:active:not(:disabled) {
    background: var(--warning);
    color: var(--bg-primary);
}

.btn-submit {
    flex: 2;
    background: var(--accent);
    color: white;
}

.btn-submit:hover:not(:disabled),
.btn-submit:active:not(:disabled) {
    background: var(--accent-hover);
}

.btn-skip {
    width: 100%;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--text-muted);
}

.btn-skip:hover,
.btn-skip:active {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

/* Stats Footer */
.stats-footer {
    display: flex;
    justify-content: center;
    gap: 32px;
    padding: 16px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: auto;
}

/* Result Screen */
.screen-result {
    justify-content: center;
    text-align: center;
    gap: 16px;
}

.result-icon {
    font-size: 4rem;
    animation: bounceIn 0.5s ease;
}

@keyframes bounceIn {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.result-title {
    font-size: 1.8rem;
    font-weight: 700;
}

.result-title.correct {
    color: var(--success);
}

.result-title.skipped {
    color: var(--warning);
}

.result-movie {
    font-size: 1.4rem;
    color: var(--text-secondary);
}

.result-emojis {
    font-size: 2.5rem;
    letter-spacing: 8px;
}

.btn-next {
    background: var(--accent);
    color: white;
    margin-top: 16px;
}

/* Complete Screen */
.screen-complete {
    justify-content: center;
    text-align: center;
}

.complete-icon {
    font-size: 5rem;
    margin-bottom: 16px;
    animation: bounceIn 0.5s ease;
}

.complete-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 32px;
}

.complete-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 32px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--bg-card);
    padding: 16px 24px;
    border-radius: var(--radius-md);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.complete-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    max-width: 280px;
}

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

.btn-restart {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--text-secondary);
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    z-index: 100;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    max-width: 360px;
    width: 100%;
    position: relative;
    animation: slideUp 0.3s ease;
}

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

.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}

.modal h2 {
    text-align: center;
    margin-bottom: 24px;
    font-size: 1.4rem;
}

.help-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.help-emoji {
    font-size: 2rem;
    flex-shrink: 0;
}

.help-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.btn-got-it {
    width: 100%;
    background: var(--accent);
    color: white;
    margin-top: 16px;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive - Tablet and up */
@media (min-width: 768px) {
    .container {
        padding: 24px;
    }

    .emoji-display {
        font-size: 4.5rem;
    }

    .emoji-card {
        padding: 48px 32px;
    }
}