/* ===== CSS Variables ===== */
:root {
    --bg-gradient-start: #1a1a2e;
    --bg-gradient-end: #16213e;
    --card-bg: #0f3460;
    --card-hover: #1a4a7a;
    --accent-primary: #e94560;
    --accent-secondary: #0f3460;
    --accent-success: #00d9a5;
    --accent-warning: #ffc93c;
    --text-primary: #eaeaea;
    --text-secondary: #a0a0a0;
    --text-muted: #6c6c6c;
    --border-color: #2a2a4a;
    
    --font-display: 'Fredoka', sans-serif;
    --font-body: 'Nunito', sans-serif;
    
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(233, 69, 96, 0.3);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
}

/* ===== Admin Container ===== */
.admin-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* ===== Header ===== */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 20px;
}

.admin-header h1 {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-warning));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-top: 5px;
}

.back-link {
    color: var(--accent-success);
    text-decoration: none;
    font-weight: 600;
    padding: 10px 20px;
    border: 2px solid var(--accent-success);
    border-radius: 25px;
    transition: var(--transition-smooth);
}

.back-link:hover {
    background: var(--accent-success);
    color: var(--bg-gradient-start);
}

/* ===== Instructions ===== */
.instructions {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 25px;
    border: 1px solid var(--border-color);
}

.instructions h2 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--accent-warning);
}

.instructions ul {
    list-style: none;
    margin: 15px 0;
}

.instructions li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.instructions li::before {
    content: '•';
    position: absolute;
    left: 8px;
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.tip {
    background: rgba(255, 201, 60, 0.1);
    padding: 12px 15px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-warning);
    margin-top: 15px;
    font-size: 0.95rem;
}

/* ===== Section Headers ===== */
.section-header {
    margin: 30px 0 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 5px;
}

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

/* ===== Generic Feedback Grid ===== */
.generic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.generic-card {
    border-radius: 16px;
    padding: 20px;
    transition: var(--transition-smooth);
    overflow: hidden;
}

.generic-card.generic-correct {
    background: linear-gradient(145deg, #2a6a4a, #1a5a3a);
    border: 2px solid #4a9a6a;
}

.generic-card.generic-wrong {
    background: linear-gradient(145deg, #6a4a2a, #5a3a1a);
    border: 2px solid #9a6a4a;
}

.generic-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.generic-card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.generic-icon {
    font-size: 2.5rem;
}

.generic-correct .generic-info h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: #6adb9a;
}

.generic-wrong .generic-info h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: #dbaa6a;
}

.generic-info p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ===== Word Grid ===== */
.word-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

/* ===== Position Sounds Grid ===== */
.position-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.position-card {
    background: linear-gradient(145deg, #2a5a4a, #1a4a3a);
    border-radius: 16px;
    padding: 20px;
    border: 2px solid #3a7a6a;
    transition: var(--transition-smooth);
    overflow: hidden;
}

.position-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.position-card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.position-card .letter-display {
    font-size: 2.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    background: linear-gradient(135deg, #4ECDC4, #00d9a5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.position-info h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: #4ECDC4;
}

.position-info p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.btn-preview-slot {
    background: linear-gradient(145deg, #00d9a5, #00b894);
    border: none;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: var(--transition-smooth);
}

.btn-preview-slot:hover {
    transform: scale(1.1);
    box-shadow: 0 0 10px rgba(0, 217, 165, 0.5);
}

/* ===== Letter Quiz Grid ===== */
.letter-quiz-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.quiz-letter-card {
    background: linear-gradient(145deg, #5a3a7a, #4a2a6a);
    border-radius: 16px;
    padding: 20px;
    border: 2px solid #7a5a9a;
    transition: var(--transition-smooth);
    overflow: hidden;
}

.quiz-letter-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.quiz-letter-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.quiz-letter-card .letter-display {
    font-size: 2.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    background: linear-gradient(135deg, #FFE66D, #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.quiz-letter-info h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: #FFE66D;
}

.quiz-letter-info p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.btn-preview-letter {
    background: linear-gradient(145deg, #FFE66D, #FFA500);
    border: none;
    color: #333;
    font-size: 1rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: var(--transition-smooth);
}

.btn-preview-letter:hover {
    transform: scale(1.1);
    box-shadow: 0 0 10px rgba(255, 230, 109, 0.5);
}

.word-card {
    background: linear-gradient(145deg, #1a4a7a, var(--card-bg));
    border-radius: 16px;
    padding: 20px;
    border: 2px solid #2a6aaa;
    transition: var(--transition-smooth);
    overflow: hidden;
}

.word-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.word-card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.word-emoji {
    font-size: 3rem;
}

.word-info h3 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: var(--accent-warning);
    text-transform: uppercase;
}

.word-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Progress Bar ===== */
.progress-bar {
    background: var(--card-bg);
    border-radius: 25px;
    height: 40px;
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-success), #00b894);
    border-radius: 25px;
    width: 0%;
    transition: width 0.5s ease;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* ===== Letter Grid ===== */
.letter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.letter-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
    overflow: hidden;
}

.letter-card:hover {
    background: var(--card-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-soft);
}

.letter-card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.letter-display {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-primary), #ff6b8a);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
}

.letter-info h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    text-transform: uppercase;
}

.letter-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.recording-slots {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.recording-slot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0, 0, 0, 0.2);
    padding: 12px 15px;
    border-radius: 10px;
    gap: 10px;
    overflow: hidden;
}

.slot-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-width: 80px;
    flex-shrink: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.slot-status {
    flex: 1;
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 8px;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-muted);
}

.status-indicator.recorded {
    background: var(--accent-success);
    box-shadow: 0 0 8px var(--accent-success);
}

.status-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.status-text.recorded {
    color: var(--accent-success);
}

.slot-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
    overflow: visible;
}

.btn-icon-only {
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
    max-width: 36px;
    max-height: 36px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: var(--transition-smooth);
    overflow: hidden;
    flex-shrink: 0;
}

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

.btn-record-slot:hover {
    background: #ff6b8a;
    transform: scale(1.1);
}

.btn-play-slot {
    background: var(--accent-success);
    color: white;
}

.btn-play-slot:hover {
    background: #00f5b8;
    transform: scale(1.1);
}

.btn-play-slot:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
}

.btn-delete-slot {
    background: rgba(255, 100, 100, 0.3);
    color: #ff9999;
}

.btn-delete-slot:hover:not(:disabled) {
    background: var(--accent-primary);
    color: white;
    transform: scale(1.1);
}

.btn-delete-slot:disabled {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

/* ===== Export Section ===== */
.export-section {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 25px;
    border: 1px solid var(--border-color);
}

.export-section h3 {
    font-family: var(--font-display);
    margin-bottom: 10px;
    color: var(--text-primary);
}

/* Sync Status Indicator */
.sync-status {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 15px;
    padding: 10px 15px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    font-size: 0.9rem;
}

.sync-status.syncing .sync-icon {
    animation: spin 1s linear infinite;
}

.sync-status.synced {
    color: var(--accent-success);
}

.sync-status.error {
    color: var(--accent-primary);
}

.sync-status.offline {
    color: var(--text-muted);
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.btn-sync {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
}

.btn-sync:hover {
    background: linear-gradient(135deg, #2980b9, #1f6391);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
}

.btn-sync:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.export-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-icon {
    font-size: 1.1rem;
}

.btn-export {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.btn-export:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.btn-import {
    background: linear-gradient(135deg, #11998e, #38ef7d);
    color: white;
    cursor: pointer;
}

.btn-import:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(56, 239, 125, 0.4);
}

.btn-generate {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.btn-generate:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.btn-generate:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-trim {
    background: linear-gradient(135deg, #f093fb, #f5576c);
    color: white;
}

.btn-trim:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(245, 87, 108, 0.4);
}

.btn-trim:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-clear {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-clear:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.btn-restore {
    background: linear-gradient(135deg, #00b894, #00d9a5);
    color: white;
}

.btn-restore:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 217, 165, 0.4);
}

.backup-status {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 15px;
    padding: 10px 15px;
    background: rgba(0, 217, 165, 0.1);
    border-radius: 8px;
    border-left: 4px solid var(--accent-success);
}

.btn-record-all {
    background: linear-gradient(135deg, #FF6B6B, #ee5a24);
    color: white;
}

.btn-record-all:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(238, 90, 36, 0.4);
}

.wizard-progress {
    text-align: center;
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

.wizard-progress .progress-count {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-warning);
}

.wizard-progress .progress-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

.wizard-prompt {
    text-align: center;
    padding: 20px;
    background: rgba(233, 69, 96, 0.1);
    border-radius: 12px;
    margin-bottom: 20px;
    border: 2px dashed var(--accent-primary);
}

.wizard-prompt .say-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.wizard-prompt .say-text {
    font-size: 1.8rem;
    font-family: var(--font-display);
    color: var(--accent-warning);
    font-weight: 700;
}

.wizard-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    gap: 10px;
}

.btn-skip {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-skip:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ===== 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: 1000;
    backdrop-filter: blur(5px);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    width: 90%;
    max-width: 450px;
    border: 1px solid var(--border-color);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.modal-header h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
}

.modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.modal-close:hover {
    background: var(--accent-primary);
    color: white;
}

.recording-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px 0;
}

.recording-indicator {
    position: relative;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid var(--accent-primary);
    border-radius: 50%;
    opacity: 0;
}

.recording-indicator.active .pulse-ring {
    animation: pulse-ring 1.5s ease-out infinite;
}

@keyframes pulse-ring {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.mic-icon {
    font-size: 3rem;
    z-index: 1;
}

.recording-indicator.active .mic-icon {
    animation: mic-pulse 0.5s ease-in-out infinite alternate;
}

@keyframes mic-pulse {
    from { transform: scale(1); }
    to { transform: scale(1.1); }
}

.waveform {
    width: 100%;
    height: 60px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 0 20px;
    overflow: hidden;
}

.waveform-bar {
    width: 4px;
    height: 10px;
    background: var(--accent-primary);
    border-radius: 2px;
    transition: height 0.1s ease;
}

.recording-time {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 10px;
}

.modal-actions {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-record {
    background: var(--accent-primary);
    color: white;
    padding: 15px 30px;
    font-size: 1.1rem;
}

.btn-record:hover {
    box-shadow: var(--shadow-glow);
}

.btn-record.recording {
    background: #ff3333;
    animation: recording-pulse 1s ease-in-out infinite;
}

@keyframes recording-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 51, 51, 0.7); }
    50% { box-shadow: 0 0 0 15px rgba(255, 51, 51, 0); }
}

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

.btn-play:hover {
    box-shadow: 0 0 20px rgba(0, 217, 165, 0.4);
}

.btn-save {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.btn-save:hover {
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.4);
}

.hidden {
    display: none !important;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
    .admin-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .admin-header h1 {
        font-size: 1.8rem;
    }
    
    .letter-grid {
        grid-template-columns: 1fr;
    }
    
    .export-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .recording-slot {
        flex-wrap: wrap;
    }
    
    .slot-label {
        min-width: 100%;
        margin-bottom: 5px;
    }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-gradient-start);
}

::-webkit-scrollbar-thumb {
    background: var(--card-bg);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--card-hover);
}