:root {
    --primary-color: #4CAF50;
    --primary-dark: #388E3C;
    --accent-color: #FF9800;
    --text-dark: #1F2937;
    --text-light: #6B7280;
    --bg-gradient: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.4);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    --radius: 24px;
    --font-main: 'Outfit', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-main);
    background: #e0f2f1;
    background-image:
        radial-gradient(at 0% 0%, hsla(152, 40%, 90%, 1) 0, transparent 50%),
        radial-gradient(at 100% 0%, hsla(38, 65%, 94%, 1) 0, transparent 50%);
    color: var(--text-dark);
    min-height: 100vh;
}

.app-container {
    max-width: 700px;
    margin: 0 auto;
    padding: 15px;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    margin-bottom: 10px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.9rem;
}

/* Toggle Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--primary-color);
}

input:checked+.slider:before {
    transform: translateX(26px);
}

/* Main Content */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

h2 {
    font-weight: 600;
    margin-bottom: 8px;
}

p {
    color: var(--text-light);
    margin-bottom: 20px;
}

/* Camera */
.camera-wrapper {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto 20px;
    aspect-ratio: 1/1;
    /* Square for Instagram-like feel */
    background: black;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#overlay-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

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

.btn {
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.primary-btn {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 14px rgba(76, 175, 80, 0.4);
}

.primary-btn:hover {
    transform: translateY(-2px);
    background: var(--primary-dark);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.6);
}

.secondary-btn {
    background: white;
    color: var(--text-dark);
    border: 2px solid #e0e0e0;
}

.secondary-btn:hover {
    background: #f5f5f5;
}

/* Results */
.hidden {
    display: none;
}

.results-card {
    text-align: left;
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.back-btn {
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
}

.fruit-identity {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.fruit-img-container {
    width: 100px;
    height: 100px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.fruit-img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.fruit-names h1 {
    font-size: 2rem;
    color: var(--text-dark);
    line-height: 1.2;
}

.fruit-names h3 {
    font-size: 1.2rem;
    color: var(--text-light);
    font-weight: 400;
    margin-bottom: 5px;
}

.confidence-badge {
    display: inline-block;
    background: #e6f4ea;
    color: var(--primary-dark);
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 600px) {
    .info-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.info-card {
    background: rgba(255, 255, 255, 0.6);
    padding: 20px;
    border-radius: 16px;
}

.highlight-card {
    grid-column: 1 / -1;
    background: #fff8e1;
    /* Light yellow for guide */
    border: 1px solid #ffe0b2;
}

.card-title {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--primary-dark);
    border-bottom: 2px solid rgba(0, 0, 0, 0.05);
    padding-bottom: 8px;
}

.nutrition-table {
    width: 100%;
    border-collapse: collapse;
}

.nutrition-table td {
    padding: 6px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nutrition-table td:first-child {
    color: var(--text-light);
}

.nutrition-table td:last-child {
    font-weight: 600;
    text-align: right;
}

.benefit-list {
    list-style: none;
    padding-left: 5px;
}

.benefit-list li {
    position: relative;
    padding-left: 20px;
    /* Space for bullet */
    margin-bottom: 8px;
    line-height: 1.4;
}

.benefit-list li::before {
    content: "•";
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
    position: absolute;
    left: 0;
    top: -2px;
}

/* Loading Overlay */
#loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

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