:root {
    --primary-color: #22c55e;          /* Modernes Grün für Buttons */
    --secondary-color: #16a34a;        /* Dunkleres Grün für Hover */
    --background-color: #0f172a;       /* Dunkelblau (Dark Theme) */
    --card-bg: #1e293b;                 /* Dunkle Karten für Kontrast */
    --text-color: #f8fafc;              /* Hellgrau für bessere Lesbarkeit */
    --text-light: rgba(255, 255, 255, 0.7);
    --border-radius: 16px;             /* Modernere abgerundete Ecken */
    --card-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--background-color);
    color: var(--text-color);
    min-height: 100vh;
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    max-width: 400px;
    width: 100%;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-light);
}

.header-logo {
    max-width: 200px;
    height: auto;
    margin: 0 auto 15px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
}

.header-logo:hover {
    transform: scale(1.05);
}

.header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.header p {
    font-size: 1rem;
    opacity: 0.9;
}

.header-logo-fallback {
    font-size: 2.5rem;
    margin: 0 auto 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

/* Karten-Stil (modernisiert) */
.card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.scanner-container {
    text-align: center;
}

/* Moderner Scan-Button */
.scan-button {
    background: var(--primary-color);
    color: var(--background-color);
    border: none;
    padding: 14px 30px;
    font-size: 1.1rem;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    margin: 10px 0;
    width: 100%;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3);
}

.scan-button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.4);
}

.scan-button:active {
    transform: scale(0.98);
}

.scan-button:disabled {
    background: #6b7280;
    cursor: not-allowed;
}

.manual-hint {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 10px 0 15px;
}

.manual-input {
    display: flex;
    gap: 10px;
}

.manual-input input {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid #374151;
    border-radius: 10px;
    font-size: 1rem;
    background: #374151;
    color: var(--text-color);
    transition: var(--transition);
}

.manual-input input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.2);
}

.manual-input button {
    background: var(--primary-color);
    color: var(--background-color);
    border: none;
    padding: 12px 20px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}

.manual-input button:hover {
    background: var(--secondary-color);
}

/* Scanner-Overlay (modernisiert) */
#scanner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: none;
    z-index: 1000;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.scanner-frame {
    width: 90%;
    max-width: 350px;
    height: 250px;
    position: relative;
    border: 2px dashed rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 20px;
}

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

.scanner-frame::after {
    content: "📱 Barcode hier scannen";
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    background: rgba(0, 0, 0, 0.5);
    padding: 4px 8px;
    border-radius: 8px;
}

.close-scanner {
    position: absolute;
    top: 20px;
    right: 20px;
    background: white;
    border: none;
    padding: 10px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Ladeanimation */
.loading {
    text-align: center;
    color: var(--text-light);
    padding: 30px 20px;
}

.spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto 15px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

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

/* Ergebnis-Karte (modernisiert) */
.result-card {
    text-align: center;
    animation: slideIn 0.5s ease-out;
}

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

.result-icon {
    width: 100px;
    height: 100px;
    margin: 20px auto;
    transition: var(--transition);
}

.result-icon img {
    width: 100%;
    height: 100%;
}

.thumbs-up img {
    filter: brightness(0.4) sepia(1) hue-rotate(80deg) saturate(5);
}

.thumbs-down img {
    filter: brightness(0.4) sepia(1) hue-rotate(-50deg) saturate(5);
}

.product-name {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-color);
}

.sugar-info {
    font-size: 1.1rem;
    margin: 15px 0;
    padding: 12px;
    border-radius: 12px;
    font-weight: 600;
}

.sugar-good {
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
}

.sugar-bad {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

/* Nährwerttabelle (modernisiert) */
.nutrition-details {
    margin: 20px 0;
    padding: 0;
    background: transparent;
    text-align: left;
}

.nutrition-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.nutrition-item .label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.nutrition-item .value {
    font-weight: 600;
}

.high-salt {
    color: #ef4444 !important;
}

.medium-salt {
    color: #fbbc05 !important;
}

.low-salt {
    color: var(--primary-color) !important;
}

.vegan-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 15px 0;
    padding: 10px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
}

.vegan-status img {
    height: 25px;
    width: 25px;
}

.error {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
    padding: 15px;
    border-radius: 12px;
    margin: 10px 0;
    text-align: center;
}

.scan-again-btn {
    background: var(--primary-color);
    color: var(--background-color);
    border: none;
    padding: 12px 25px;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    margin: 20px auto 0;
    display: block;
    transition: var(--transition);
}

.scan-again-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.install-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--primary-color);
    color: var(--background-color);
    border: none;
    padding: 12px 20px;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3);
    z-index: 100;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.install-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.4);
}

/* Sprachwechsel-Button */
.language-toggle {
    display: flex;
    justify-content: flex-end;
    gap: 5px;
    margin-bottom: 15px;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    font-size: 0.9rem;
}

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

/* Responsive Anpassungen */
@media (max-width: 375px) {
    .container {
        padding: 10px;
    }

    .card {
        padding: 15px;
    }

    .header h1 {
        font-size: 1.75rem;
    }

    #camera {
        height: 220px;
    }
}