assets/css/styles.css

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

:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --secondary: #7209b7;
    --success: #4cc9f0;
    --warning: #f72585;
    --danger: #e63946;
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --border-radius: 12px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #fafbff;
    color: var(--dark);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.app-header {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.app-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    padding: 16px 0;
}

.built-by {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.85rem;
    color: var(--gray);
    text-decoration: none;
}

.built-by:hover {
    text-decoration: underline;
}

/* Main Layout */
.app-main {
    padding: 24px 0;
}

.section-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin: 28px 0 16px;
    color: var(--dark);
}

/* Scanner Section */
.scanner-section {
    text-align: center;
    margin-bottom: 32px;
}

.scanner-placeholder {
    background: white;
    border-radius: var(--border-radius);
    padding: 32px 24px;
    box-shadow: var(--shadow);
    position: relative;
}

.scanner-frame {
    width: 240px;
    height: 240px;
    margin: 0 auto 20px;
    border: 3px dashed var(--primary);
    border-radius: 16px;
    position: relative;
    overflow: hidden;
}

.scanner-frame::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(to bottom, rgba(67, 97, 238, 0.15), transparent);
    animation: scanLine 2s infinite;
}

@keyframes scanLine {
    0% { top: 0; }
    100% { top: 200px; }
}

.scanner-instruction {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

/* Profile Section */
.profile-section {
    background: white;
    border-radius: var(--border-radius);
    padding: 24px;
    margin-bottom: 28px;
    box-shadow: var(--shadow);
}

.profile-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 16px 0;
}

.tag {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.tag-allergy {
    background-color: rgba(230, 57, 70, 0.15);
    color: var(--danger);
}

.tag-diet {
    background-color: rgba(67, 97, 238, 0.15);
    color: var(--primary);
}

/* Recent Scans */
.scan-history {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.scan-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.scan-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.scan-icon.safe {
    background-color: rgba(76, 201, 240, 0.15);
    color: var(--success);
}

.scan-icon.warning {
    background-color: rgba(247, 37, 133, 0.15);
    color: var(--warning);
}

.scan-icon.unsafe {
    background-color: rgba(230, 57, 70, 0.15);
    color: var(--danger);
}

.scan-icon::before {
    font-size: 1.2rem;
    font-weight: bold;
}

.scan-info h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.scan-status {
    font-size: 0.9rem;
}

/* Quick Actions */
.quick-actions {
    margin-top: 20px;
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

/* Buttons */
.btn {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    padding: 14px 20px;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    width: 100%;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: #dfe3e6;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background-color: rgba(67, 97, 238, 0.08);
}

/* Footer */
.app-footer {
    background: white;
    padding: 20px 0;
    border-top: 1px solid var(--light-gray);
    margin-top: 40px;
}

.app-footer p {
    text-align: center;
    color: var(--gray);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 600px) {
    .container {
        padding: 0 16px;
    }

    .app-title {
        font-size: 1.5rem;
    }

    .built-by {
        position: static;
        transform: none;
        display: block;
        margin-top: 8px;
        text-align: center;
    }

    .scanner-frame {
        width: 200px;
        height: 200px;
    }

    .action-buttons {
        grid-template-columns: 1fr;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states for accessibility */
.btn:focus,
.btn:active {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}