/* =====================================================
   PATTERN MATCHING CHALLENGE - COMPLETE STYLESHEET
   Design: Professional, Educational, Beautiful
   ===================================================== */

:root {
    /* Colors - Purple/Orange theme for spectrograms */
    --pattern-primary: #2C5530;
    --pattern-secondary: #9C27B0;
    --pattern-accent: #FF6F00;
    --pattern-success: #4CAF50;
    --pattern-warning: #FFC107;
    --pattern-error: #F44336;
    
    /* Spectrogram Colors */
    --spectrogram-low: #9C27B0;
    --spectrogram-mid: #E91E63;
    --spectrogram-high: #FF6F00;
    
    /* Spacing */
    --pattern-space-xs: 0.25rem;
    --pattern-space-sm: 0.5rem;
    --pattern-space-md: 1rem;
    --pattern-space-lg: 1.5rem;
    --pattern-space-xl: 2rem;
    
    /* Typography */
    --pattern-font-body: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    --pattern-font-heading: 'Fredoka', 'Poppins', sans-serif;
    --pattern-font-mono: 'Consolas', 'Monaco', monospace;
}

/* =====================================================
   MAIN CONTAINER
   ===================================================== */

.pattern-matching-challenge {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(135deg, #F3E5F5 0%, #FCE4EC 100%);
    font-family: var(--pattern-font-body);
    user-select: none;
    display: flex;
    flex-direction: column;
    z-index: 99999;
}

.pattern-matching-challenge input,
.pattern-matching-challenge textarea {
    user-select: text;
}

/* =====================================================
   PROGRESS & STATS (Uses detective modal styles + custom)
   ===================================================== */

.pattern-matching-challenge .detective-modal-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    gap: var(--pattern-space-lg);
}

.pattern-matching-challenge .detective-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 4px;
}

.pattern-matching-challenge .detective-stat-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--pattern-secondary);
    font-family: var(--pattern-font-heading);
}

.pattern-matching-challenge .detective-stat-value {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--pattern-secondary);
    font-family: var(--pattern-font-heading);
    text-shadow: 0 1px 2px rgba(156, 39, 176, 0.1);
}

/* Enhanced progress bar with purple/orange gradient */
.pattern-matching-challenge .detective-mini-progress {
    height: 4px !important;
    background: rgba(156, 39, 176, 0.1) !important;
}

.pattern-matching-challenge .detective-mini-progress-fill {
    background: linear-gradient(90deg, #9C27B0 0%, #E91E63 40%, #FF6F00 70%, #FFA726 100%) !important;
    box-shadow: 0 0 12px rgba(156, 39, 176, 0.4), 0 2px 4px rgba(156, 39, 176, 0.3) !important;
    position: relative;
    border-radius: 0 2px 2px 0;
}

.pattern-matching-challenge .detective-mini-progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: progressPulse 2s ease-in-out infinite;
}

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

/* =====================================================
   PHASE INDICATORS
   ===================================================== */

.pattern-phase-indicator {
    background: linear-gradient(135deg, var(--pattern-secondary) 0%, #E91E63 100%);
    border-radius: 16px;
    padding: var(--pattern-space-xl);
    margin-bottom: var(--pattern-space-xl);
    text-align: center;
    color: white;
    box-shadow: 0 8px 24px rgba(156, 39, 176, 0.3);
}

.pattern-phase-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: var(--pattern-space-sm) var(--pattern-space-lg);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: var(--pattern-space-sm);
    backdrop-filter: blur(10px);
}

.pattern-phase-title {
    font-family: var(--pattern-font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin: var(--pattern-space-sm) 0;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.pattern-phase-description {
    font-size: 1rem;
    opacity: 0.95;
    margin: 0;
    line-height: 1.6;
}

/* =====================================================
   BIRD LEARNING CARDS
   ===================================================== */

.pattern-learning-card {
    background: white;
    border-radius: 20px;
    padding: var(--pattern-space-xl);
    margin-bottom: var(--pattern-space-xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.5s ease-out;
}

.pattern-bird-header {
    display: flex;
    align-items: center;
    gap: var(--pattern-space-lg);
    margin-bottom: var(--pattern-space-lg);
    padding-bottom: var(--pattern-space-lg);
    border-bottom: 2px solid #F3E5F5;
}

.pattern-bird-image {
    width: 100px;
    height: 100px;
    object-fit: contain;
    border-radius: 16px;
    background: linear-gradient(135deg, #F3E5F5 0%, #FCE4EC 100%);
    padding: var(--pattern-space-md);
    box-shadow: 0 4px 16px rgba(156, 39, 176, 0.15);
}

.pattern-bird-info {
    flex: 1;
}

.pattern-bird-name {
    font-family: var(--pattern-font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--pattern-secondary);
    margin: 0 0 var(--pattern-space-sm) 0;
}

.pattern-bird-pattern-type {
    display: inline-block;
    background: linear-gradient(135deg, var(--pattern-secondary), #E91E63);
    color: white;
    padding: var(--pattern-space-xs) var(--pattern-space-md);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* =====================================================
   SPECTROGRAM VISUALIZATION
   ===================================================== */

.pattern-spectrogram-container {
    background: #1a1a2e;
    border-radius: 16px;
    padding: var(--pattern-space-lg);
    margin: var(--pattern-space-lg) 0;
    position: relative;
    overflow: hidden;
}

.pattern-spectrogram-label {
    color: white;
    font-family: var(--pattern-font-mono);
    font-size: 0.75rem;
    margin-bottom: var(--pattern-space-sm);
    display: flex;
    justify-content: space-between;
    opacity: 0.8;
}

.pattern-spectrogram {
    width: 100%;
    height: 200px;
    background: #0f0f1e;
    border-radius: 12px;
    position: relative;
    display: flex;
    align-items: flex-end;
    padding: var(--pattern-space-md);
    gap: 2px;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.5);
}

.pattern-spectrogram-bar {
    flex: 1;
    background: linear-gradient(to top, var(--spectrogram-low), var(--spectrogram-mid), var(--spectrogram-high));
    border-radius: 2px 2px 0 0;
    transition: all 0.2s ease;
    position: relative;
}

.pattern-spectrogram-bar.active {
    box-shadow: 0 0 12px rgba(255, 111, 0, 0.8);
    transform: scaleY(1.05);
}

/* Frequency axis labels */
.pattern-freq-axis {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.65rem;
    font-family: var(--pattern-font-mono);
    padding: var(--pattern-space-sm) 0;
}

/* Time axis labels */
.pattern-time-axis {
    display: flex;
    justify-content: space-between;
    margin-top: var(--pattern-space-sm);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.65rem;
    font-family: var(--pattern-font-mono);
}

/* =====================================================
   PATTERN DESCRIPTION
   ===================================================== */

.pattern-description-box {
    background: linear-gradient(135deg, #F3E5F5 0%, #FCE4EC 100%);
    border-left: 4px solid var(--pattern-secondary);
    border-radius: 12px;
    padding: var(--pattern-space-lg);
    margin: var(--pattern-space-lg) 0;
}

.pattern-description-title {
    font-family: var(--pattern-font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--pattern-secondary);
    margin: 0 0 var(--pattern-space-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--pattern-space-sm);
}

.pattern-description-text {
    color: #333;
    line-height: 1.6;
    margin: 0;
    font-size: 0.95rem;
}

/* =====================================================
   AUDIO PLAYER
   ===================================================== */

.pattern-audio-player {
    background: white;
    border-radius: 16px;
    padding: var(--pattern-space-lg);
    margin: var(--pattern-space-lg) 0;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    gap: var(--pattern-space-lg);
}

.pattern-play-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pattern-secondary), #E91E63);
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    box-shadow: 0 4px 16px rgba(156, 39, 176, 0.3);
    flex-shrink: 0;
}

.pattern-play-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(156, 39, 176, 0.5);
}

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

.pattern-play-btn.playing {
    background: linear-gradient(135deg, var(--pattern-accent), #FFA726);
}

.pattern-waveform {
    flex: 1;
    height: 56px;
    display: flex;
    align-items: center;
    gap: 2px;
}

.pattern-waveform-bar {
    flex: 1;
    background: linear-gradient(to top, var(--pattern-secondary), var(--pattern-accent));
    border-radius: 2px;
    transition: height 0.1s;
    opacity: 0.6;
}

.pattern-waveform-bar.playing {
    opacity: 1;
    animation: wavePulse 0.5s ease-in-out;
}

@keyframes wavePulse {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(1.2); }
}

.pattern-play-count {
    font-size: 0.85rem;
    color: #666;
    font-weight: 600;
    padding: var(--pattern-space-sm) var(--pattern-space-md);
    background: #F5F5F5;
    border-radius: 12px;
}

/* =====================================================
   QUESTION CARDS (Practice & Mastery)
   ===================================================== */

.pattern-question-card {
    background: white;
    border-radius: 20px;
    padding: var(--pattern-space-xl);
    margin-bottom: var(--pattern-space-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.pattern-question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--pattern-space-lg);
}

.pattern-question-number {
    font-family: var(--pattern-font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--pattern-secondary);
}

.pattern-timer {
    display: flex;
    align-items: center;
    gap: var(--pattern-space-sm);
    font-family: var(--pattern-font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--pattern-accent);
}

.pattern-timer.warning {
    color: var(--pattern-error);
    animation: timerPulse 1s ease-in-out infinite;
}

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

.pattern-options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--pattern-space-lg);
    margin: var(--pattern-space-lg) 0;
}

.pattern-option-card {
    background: #FAFAFA;
    border: 3px solid transparent;
    border-radius: 16px;
    padding: var(--pattern-space-lg);
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.pattern-option-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(156, 39, 176, 0.2);
    border-color: var(--pattern-secondary);
}

.pattern-option-card.selected {
    background: linear-gradient(135deg, #F3E5F5 0%, #FCE4EC 100%);
    border-color: var(--pattern-secondary);
    box-shadow: 0 8px 24px rgba(156, 39, 176, 0.3);
}

.pattern-option-label {
    position: absolute;
    top: var(--pattern-space-sm);
    right: var(--pattern-space-sm);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: white;
    border: 2px solid #DDD;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: #666;
}

.pattern-option-card.selected .pattern-option-label {
    background: var(--pattern-secondary);
    border-color: var(--pattern-secondary);
    color: white;
}

/* =====================================================
   BUTTONS
   ===================================================== */

.pattern-btn {
    padding: var(--pattern-space-md) var(--pattern-space-xl);
    border-radius: 12px;
    border: none;
    font-family: var(--pattern-font-heading);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: var(--pattern-space-sm);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.pattern-btn-primary {
    background: linear-gradient(135deg, var(--pattern-secondary), #E91E63);
    color: white;
}

.pattern-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(156, 39, 176, 0.4);
}

.pattern-btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.pattern-btn-secondary {
    background: white;
    color: var(--pattern-secondary);
    border: 2px solid var(--pattern-secondary);
}

.pattern-btn-secondary:hover {
    background: #F3E5F5;
    transform: translateY(-2px);
}

/* =====================================================
   FEEDBACK MODALS
   ===================================================== */

.pattern-feedback-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100000;
    animation: fadeIn 0.3s;
}

.pattern-feedback-content {
    background: white;
    border-radius: 24px;
    padding: var(--pattern-space-xl);
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
    animation: slideInUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.pattern-feedback-icon {
    font-size: 4rem;
    text-align: center;
    margin-bottom: var(--pattern-space-md);
}

.pattern-feedback-title {
    font-family: var(--pattern-font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
    margin: 0 0 var(--pattern-space-md) 0;
}

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

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

.pattern-feedback-message {
    text-align: center;
    font-size: 1rem;
    line-height: 1.6;
    margin: 0 0 var(--pattern-space-lg) 0;
    color: #555;
}

.pattern-comparison {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--pattern-space-lg);
    margin: var(--pattern-space-lg) 0;
}

.pattern-comparison-item {
    text-align: center;
}

.pattern-comparison-label {
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: var(--pattern-space-sm);
    color: #666;
}

/* =====================================================
   RESULTS SCREEN
   ===================================================== */

.pattern-results-container {
    max-width: 800px;
    margin: 0 auto;
}

.pattern-results-header {
    text-align: center;
    margin-bottom: var(--pattern-space-xl);
}

.pattern-results-icon {
    font-size: 5rem;
    margin-bottom: var(--pattern-space-md);
}

.pattern-results-title {
    font-family: var(--pattern-font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--pattern-secondary);
    margin: 0 0 var(--pattern-space-sm) 0;
}

.pattern-results-score {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--pattern-secondary), var(--pattern-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pattern-results-level {
    display: inline-block;
    background: linear-gradient(135deg, var(--pattern-secondary), #E91E63);
    color: white;
    padding: var(--pattern-space-sm) var(--pattern-space-xl);
    border-radius: 20px;
    font-weight: 700;
    margin-top: var(--pattern-space-md);
}

.pattern-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--pattern-space-lg);
    margin: var(--pattern-space-xl) 0;
}

.pattern-stat-card {
    background: white;
    border-radius: 16px;
    padding: var(--pattern-space-lg);
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.pattern-stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--pattern-secondary);
    font-family: var(--pattern-font-heading);
}

.pattern-stat-label {
    font-size: 0.85rem;
    color: #666;
    margin-top: var(--pattern-space-sm);
}

/* =====================================================
   ANIMATIONS
   ===================================================== */

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

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

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

@media (max-width: 768px) {
    .pattern-options-grid {
        grid-template-columns: 1fr;
    }
    
    .pattern-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .pattern-comparison {
        grid-template-columns: 1fr;
    }
    
    .pattern-phase-title {
        font-size: 1.5rem;
    }
    
    .pattern-results-score {
        font-size: 2rem;
    }
}

/* =====================================================
   ACCESSIBILITY
   ===================================================== */

.pattern-matching-challenge *:focus {
    outline: 3px solid var(--pattern-accent);
    outline-offset: 2px;
}

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