:root {
    /* RENKLER - KOYU TEMA */
    --bg-color: #000000;
    --card-bg: #111111;
    --card-bg-light: #1a1a1a;
    --accent-color: #0070f3;
    --accent-light: #3291ff;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-main: #ffffff;
    --text-dim: #888888;
    --text-light: #cccccc;
    --border-color: #222222;
    --border-light: #333333;
    --nav-bg: rgba(10, 10, 10, 0.95);
    --header-bg: rgba(0, 0, 0, 0.8);
    --overlay-bg: rgba(0, 0, 0, 0.7);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --gradient-primary: linear-gradient(135deg, #0070f3 0%, #3291ff 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 20px;
}

[data-theme="light"] {
    --bg-color: #f5f5f7;
    --card-bg: #ffffff;
    --card-bg-light: #f9f9f9;
    --accent-color: #0070f3;
    --accent-light: #3291ff;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-main: #000000;
    --text-dim: #666666;
    --text-light: #333333;
    --border-color: #e0e0e0;
    --border-light: #f0f0f0;
    --nav-bg: rgba(255, 255, 255, 0.95);
    --header-bg: rgba(245, 245, 247, 0.8);
    --overlay-bg: rgba(255, 255, 255, 0.7);
    --shadow-color: rgba(0, 0, 0, 0.1);
}

/* GENEL STİLLER */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    height: 100%;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    overflow: hidden;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* HEADER */
header {
    width: 100%;
    max-width: 480px;
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1100;
    background: linear-gradient(to bottom, var(--header-bg), transparent);
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    width: 28px;
    height: 28px;
    background: white;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: black;
    font-weight: 900;
    font-size: 0.7rem;
}

.header-brand h1 {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-main);
}

.icon-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.icon-btn:hover {
    background: var(--card-bg-light);
    transform: translateY(-2px);
}

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

.language-switcher select {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 5px 10px;
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
}

/* AYARLAR PANELİ */
.settings-panel {
    position: fixed;
    top: 0;
    left: -300px;
    width: 300px;
    height: 100%;
    background: var(--card-bg);
    border-right: 1px solid var(--border-color);
    z-index: 3000;
    transition: left 0.3s ease;
    padding: 20px;
    overflow-y: auto;
    box-shadow: 5px 0 30px var(--shadow-color);
}

.settings-panel.open {
    left: 0;
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.settings-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.settings-title h3 {
    font-size: 1.2rem;
    font-weight: 700;
}

.close-settings {
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    transition: var(--transition);
}

.close-settings:hover {
    background: var(--card-bg-light);
}

.settings-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.setting-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.setting-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-color);
}

.setting-select {
    width: 100%;
    padding: 10px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-main);
    font-size: 0.9rem;
    transition: var(--transition);
}

.setting-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(0, 112, 243, 0.1);
}

.setting-slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
}

.setting-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    border: 3px solid var(--card-bg);
    box-shadow: 0 2px 5px var(--shadow-color);
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.slider-container span {
    min-width: 45px;
    text-align: right;
    font-size: 0.9rem;
    color: var(--text-dim);
}

.sensitivity-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-top: 5px;
}

.setting-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.btn-primary, .btn-secondary, .btn-outline {
    padding: 12px 24px;
    border-radius: var(--border-radius-sm);
    border: none;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 112, 243, 0.3);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--card-bg-light);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background: var(--card-bg);
    transform: translateY(-2px);
}

/* KAMERA KONTEYNER */
#camera-container {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 480px;
    background: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

video, canvas {
    position: absolute;
    pointer-events: none;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

canvas {
    z-index: 2;
}

video {
    z-index: 1;
}

/* YÜKLEYİCİ */
#loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    text-align: center;
    z-index: 5;
    display: none;
}

.spinner {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite;
}

.spinner i {
    width: 60px;
    height: 60px;
    color: var(--accent-color);
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

/* HUD (ANTREMAN EKRANI) */
.hud-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    pointer-events: none;
    padding: calc(70px + 10px) 20px 100px 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.stats-bar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.stat-box {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    padding: 12px 20px;
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.06);
    text-align: center;
    min-width: 90px;
}

.stat-box .label {
    display: block;
    font-size: 0.65rem;
    text-transform: uppercase;
    color: #aaa;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.stat-box .value {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: white;
    font-variant-numeric: tabular-nums;
}

.stat-box.highlight .value {
    color: var(--accent-color);
}

.feedback-area {
    text-align: center;
    margin-bottom: 20px;
    pointer-events: auto;
}

.feedback-pill {
    display: inline-block;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 15px;
    max-width: 80%;
}

.feedback-pill.success {
    background: var(--success-color);
    border-color: transparent;
}

.feedback-pill.warning {
    background: var(--warning-color);
    color: black;
    border-color: transparent;
}

.feedback-pill.error {
    background: var(--danger-color);
    border-color: transparent;
}

.finish-btn {
    pointer-events: auto;
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: var(--border-radius);
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 auto;
    transition: var(--transition);
}

.finish-btn:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(239, 68, 68, 0.3);
}

/* KONTROL KATMANLARI */
.control-layer {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: var(--overlay-bg);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 30px;
    text-align: center;
    transition: opacity 0.3s ease;
}

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

.big-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    box-shadow: 0 10px 40px rgba(0, 112, 243, 0.4);
}

.big-icon i {
    width: 50px;
    height: 50px;
    color: white;
}

.title-text {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 15px;
}

.desc-text {
    color: var(--text-dim);
    font-size: 0.95rem;
    margin-bottom: 30px;
    max-width: 350px;
    line-height: 1.6;
}

.start-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
    max-width: 300px;
    width: 100%;
}

.option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: var(--card-bg);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-size: 0.9rem;
    text-align: left;
}

.option i {
    width: 20px;
    height: 20px;
    color: var(--accent-color);
}

.start-btn {
    background: white;
    color: black;
    border: none;
    padding: 18px 50px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.start-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

/* DETAYLI SONUÇ EKRANI */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 30px;
    max-width: 300px;
    width: 100%;
}

.summary-stat {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.summary-value {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 5px;
}

.summary-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
}

.performance-metrics {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    border: 1px solid var(--border-color);
    margin-bottom: 25px;
    width: 100%;
    max-width: 400px;
}

.performance-metrics h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-main);
    text-align: left;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.metric {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--card-bg-light);
    border-radius: var(--border-radius-sm);
}

.metric i {
    width: 24px;
    height: 24px;
    color: var(--accent-color);
}

.metric div {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-dim);
    font-weight: 600;
}

.metric-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
}

.chart-container {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    border: 1px solid var(--border-color);
    margin-bottom: 25px;
    width: 100%;
    max-width: 400px;
}

.chart-container h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-main);
    text-align: left;
}

.chart-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

.recommendations {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    border: 1px solid var(--border-color);
    margin-bottom: 25px;
    width: 100%;
    max-width: 400px;
}

.recommendations h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-main);
    text-align: left;
}

.recommendation-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.recommendation-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    background: var(--card-bg-light);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    color: var(--text-main);
    text-align: left;
}

.recommendation-item i {
    width: 20px;
    height: 20px;
    color: var(--success-color);
    flex-shrink: 0;
    margin-top: 2px;
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 300px;
}

/* ALT NAVİGASYON */
.bottom-nav {
    position: fixed;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 40px);
    max-width: 400px;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    z-index: 2000;
    box-shadow: 0 5px 20px var(--shadow-color);
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.65rem;
    font-weight: 700;
    transition: var(--transition);
    padding: 8px;
    border-radius: var(--border-radius-sm);
}

.nav-item i {
    width: 20px;
    height: 20px;
}

.nav-item:hover {
    color: var(--text-main);
    background: var(--card-bg-light);
}

.nav-item.active {
    color: var(--accent-color);
    background: var(--card-bg);
}

/* HATA KUTUSU */
.error-box {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 40px);
    max-width: 400px;
    background: var(--danger-color);
    color: white;
    padding: 15px 20px;
    border-radius: var(--border-radius);
    z-index: 4000;
    box-shadow: 0 5px 20px rgba(239, 68, 68, 0.3);
}

.error-box.hidden {
    display: none;
}

.error-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

.error-content i {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.error-content div {
    flex: 1;
}

.error-content h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.error-content p {
    font-size: 0.8rem;
    opacity: 0.9;
}

.error-content button {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    transition: var(--transition);
}

.error-content button:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* RESPONSIVE */
@media (max-width: 480px) {
    .settings-panel {
        width: 280px;
    }
    
    .header-brand h1 {
        font-size: 1rem;
    }
    
    .big-icon {
        width: 80px;
        height: 80px;
    }
    
    .big-icon i {
        width: 40px;
        height: 40px;
    }
    
    .title-text {
        font-size: 1.5rem;
    }
    
    .summary-grid {
        grid-template-columns: 1fr;
        max-width: 250px;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .performance-metrics,
    .chart-container,
    .recommendations {
        max-width: 350px;
    }
}

@media (max-height: 700px) {
    .control-layer {
        padding: 20px;
        justify-content: flex-start;
        padding-top: 80px;
        overflow-y: auto;
    }
    
    .summary-grid,
    .performance-metrics,
    .chart-container,
    .recommendations {
        margin-bottom: 15px;
    }
}



/* SADE SONUÇ EKRANI STİLLERİ */
.simple-stats {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 25px 0;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    min-width: 120px;
}

.stat-item i {
    width: 24px;
    height: 24px;
    color: var(--accent-color);
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

.simple-analysis {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    border: 1px solid var(--border-color);
    margin: 20px 0;
    max-width: 300px;
    width: 100%;
}

.simple-analysis h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-main);
    text-align: center;
}

.analysis-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.analysis-item:last-child {
    border-bottom: none;
}

.analysis-item span:first-child {
    color: var(--text-dim);
    font-size: 0.9rem;
}

.analysis-item span:last-child {
    font-weight: 600;
    color: var(--text-main);
    font-size: 0.9rem;
}

.simple-tip {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 15px 20px;
    border: 1px solid var(--border-color);
    margin: 20px 0;
    max-width: 300px;
    width: 100%;
}

.simple-tip i {
    width: 20px;
    height: 20px;
    color: var(--warning-color);
    flex-shrink: 0;
}

.simple-tip p {
    font-size: 0.9rem;
    color: var(--text-main);
    margin: 0;
    text-align: left;
}

.simple-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 300px;
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 15px 30px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-outline:hover {
    background: var(--card-bg);
    transform: translateY(-2px);
}

@media (max-width: 480px) {
    .simple-stats {
        gap: 15px;
    }
    
    .stat-item {
        min-width: 100px;
        padding: 12px;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
}

.skeleton {
  background: linear-gradient(
    90deg,
    #1e293b 25%,
    #334155 37%,
    #1e293b 63%
  );
  background-size: 400% 100%;
  animation: shimmer 1.4s ease infinite;
}

@keyframes shimmer {
  0% { background-position: 100% 0 }
  100% { background-position: -100% 0 }
}