/* ==========================================================================
   Berbicara Bahasa Inggris yang Interaktif - Teachable Machine AI Studio
   Styling: Warm Nature / Earth & Modern Emerald Aesthetic
   ========================================================================== */

:root {
    /* Color Palette */
    --bg-main: #f5f2eb;
    --bg-card: #ffffff;
    --bg-subtle: #faf8f5;
    
    --primary: #2d5a27;       /* Forest / Leaf Green */
    --primary-hover: #1e3f1b;
    --primary-light: #eaf3e8;
    
    --accent: #d97706;        /* Warm Amber / Spice Warmth */
    --accent-hover: #b45309;
    --accent-light: #fef3c7;
    
    --wood-dark: #3e2723;     /* Dark Wood / Coffee */
    --wood-medium: #5d4037;
    --wood-light: #efebe9;
    
    --text-primary: #1c1917;
    --text-secondary: #57534e;
    --text-muted: #78716c;
    
    --border-color: #e7e5e4;
    --shadow-sm: 0 2px 8px rgba(62, 39, 35, 0.05);
    --shadow-md: 0 10px 25px -5px rgba(62, 39, 35, 0.08);
    --shadow-lg: 0 20px 35px -10px rgba(62, 39, 35, 0.12);
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s ease;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    background: linear-gradient(135deg, var(--wood-dark) 0%, #2a1b18 100%);
    color: #ffffff;
    padding: 1.25rem 2rem;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, #3a7533 100%);
    color: #ffffff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 12px rgba(45, 90, 39, 0.4);
}

.brand h1 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 0.85rem;
    color: #d7ccc8;
}

/* Main Layout */
.main-content {
    max-width: 1200px;
    width: 100%;
    margin: 2rem auto;
    padding: 0 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Status Banner */
.status-banner {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    box-shadow: var(--shadow-sm);
    animation: fadeIn 0.3s ease;
}

.status-banner.info {
    background-color: var(--primary-light);
    color: var(--primary);
    border-left: 4px solid var(--primary);
}

.status-banner.warning {
    background-color: var(--accent-light);
    color: var(--accent-hover);
    border-left: 4px solid var(--accent);
}

.status-banner.error {
    background-color: #fef2f2;
    color: #991b1b;
    border-left: 4px solid #ef4444;
}

/* App Grid */
.app-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 900px) {
    .app-grid {
        grid-template-columns: 1fr;
    }
}

/* Card UI Base */
.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-header {
    padding: 1.25rem 1.5rem;
    background-color: var(--bg-subtle);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--wood-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Badges */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-off {
    background-color: #e7e5e4;
    color: var(--text-muted);
}

.badge-live {
    background-color: #dcfce7;
    color: var(--primary);
    border: 1px solid #bbf7d0;
}

.badge-accent {
    background-color: var(--accent-light);
    color: var(--accent-hover);
}

/* Webcam Container */
.webcam-viewport {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    background-color: #1c1917;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.webcam-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #a8a29e;
    text-align: center;
    padding: 2rem;
}

.webcam-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #78716c;
}

.webcam-placeholder p {
    font-weight: 600;
    font-size: 1.1rem;
    color: #e7e5e4;
}

.webcam-placeholder span {
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

.webcam-viewport canvas, 
.webcam-viewport video {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover;
    transform: scaleX(-1); /* Mirror view for front camera */
}

.card-controls {
    padding: 1.25rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
}

/* Button Component Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    outline: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #1e461b 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(45, 90, 39, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #24491f 0%, #143212 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(45, 90, 39, 0.35);
}

.btn-secondary {
    background-color: var(--wood-light);
    color: var(--wood-dark);
}

.btn-secondary:hover {
    background-color: #d7ccc8;
    transform: translateY(-1px);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent) 0%, #b45309 100%);
    color: #ffffff;
}

.btn-accent:hover {
    background: linear-gradient(135deg, #b45309 0%, #883e07 100%);
    transform: translateY(-1px);
}

.btn-danger {
    background-color: #ef4444;
    color: #ffffff;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-large {
    padding: 0.85rem 1.75rem;
    font-size: 1.05rem;
    width: 100%;
}

.btn-icon {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

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

.btn-tts {
    background: var(--primary-light);
    color: var(--primary);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-tts:hover {
    background: var(--primary);
    color: #ffffff;
    transform: scale(1.1);
}

/* Prediction Output Card Styles */
.prediction-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    height: 100%;
}

.active-detection {
    background: linear-gradient(135deg, var(--wood-dark) 0%, var(--wood-medium) 100%);
    color: #ffffff;
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-md);
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

.label-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #d7ccc8;
}

.top-class-name {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    margin-top: 0.2rem;
    color: #ffffff;
}

.confidence-badge {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background-color: var(--accent);
    color: #ffffff;
    padding: 0.35rem 0.85rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
}

/* Prediction Bars List */
.prediction-list-wrapper h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.label-container {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    max-height: 240px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

.prediction-row {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.prediction-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 600;
}

.class-name-text {
    color: var(--wood-dark);
}

.class-percent-text {
    color: var(--primary);
    font-family: var(--font-heading);
}

.progress-bar-bg {
    width: 100%;
    height: 10px;
    background-color: #e7e5e4;
    border-radius: 50px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 50px;
    width: 0%;
    transition: width 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* English Analysis Section & Tabs */
.analysis-card .card-header {
    flex-wrap: wrap;
    gap: 1rem;
}

.analysis-tabs {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 2px;
}

.tab-btn {
    padding: 0.5rem 1rem;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.tab-btn:hover {
    background-color: var(--bg-main);
    color: var(--text-primary);
}

.tab-btn.active {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

.card-body {
    padding: 1.5rem;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

/* Grammar Box */
.grammar-box h3 {
    font-family: var(--font-heading);
    color: var(--primary);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.formula-card {
    background-color: var(--primary-light);
    border-left: 4px solid var(--primary);
    padding: 1rem;
    border-radius: var(--radius-sm);
    margin: 1rem 0;
}

.formula-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.formula-card code {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--wood-dark);
}

.example-box {
    background-color: var(--bg-subtle);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-sm);
    border: 1px dashed var(--border-color);
}

.example-box ul {
    margin-top: 0.5rem;
    padding-left: 1.25rem;
}

.example-box li {
    margin-bottom: 0.35rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Vocab Grid */
.vocab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.vocab-card {
    background-color: var(--bg-subtle);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.vocab-term {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--wood-dark);
}

.vocab-def {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.vocab-sample {
    font-size: 0.85rem;
    color: var(--primary);
}

/* Expressions List */
.expressions-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.expression-item {
    background-color: var(--bg-subtle);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.expr-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.expr-en {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--wood-dark);
}

.expr-id {
    font-size: 0.88rem;
    color: var(--text-muted);
}

/* Speaking Practice Box */
.practice-box {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.prompt-card {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 1px solid #fcd34d;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
}

.prompt-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--wood-dark);
    margin-bottom: 1.25rem;
}

.prompt-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.speech-feedback {
    background-color: var(--bg-subtle);
    padding: 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

/* Guide Card */
.guide-steps {
    padding-left: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.guide-steps li {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.guide-steps code {
    background-color: var(--wood-light);
    color: var(--wood-dark);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(30, 27, 24, 0.65);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--bg-card);
    width: 90%;
    max-width: 500px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 1.25rem 1.5rem;
    background-color: var(--bg-subtle);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-family: var(--font-heading);
    color: var(--wood-dark);
    font-size: 1.1rem;
}

.modal-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.input-group input {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition-fast);
}

.input-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.note-box {
    background-color: var(--accent-light);
    color: var(--accent-hover);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    background-color: var(--bg-subtle);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
}

/* Footer */
.app-footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    background-color: #eae5db;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}