@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #D40026;
    --primary-hover: #B0001E;
    --primary-light: #FFEBEE;
    --success: #10B981;
    --success-hover: #059669;
    --bg-main: #F1F5F9;
    --bg-card: #FFFFFF;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --border-color: #E2E8F0;
    --ring-color: rgba(212, 0, 38, 0.15);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    padding-bottom: 60px;
}

/* Header */
.app-header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-avis {
    height: 32px;
    width: auto;
}

.logo-divider {
    width: 1px;
    height: 24px;
    background-color: var(--border-color);
}

.logo-fb {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
    letter-spacing: -0.025em;
    display: flex;
    align-items: center;
    gap: 4px;
}

.logo-fb span {
    color: var(--primary);
}

.header-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    background-color: var(--bg-main);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

/* Main Layout */
.main-container {
    max-width: 1280px;
    margin: 32px auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 1024px) {
    .main-container {
        grid-template-columns: 1.1fr 0.9fr;
    }
}

/* Cards */
.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.card-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-title i {
    color: var(--primary);
}

.card-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: -16px;
}

/* Form Controls */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

@media (min-width: 640px) {
    .form-row-2 {
        grid-template-columns: 1fr 1fr;
    }
    .form-row-3 {
        grid-template-columns: 1fr 1fr 1fr;
    }
    .form-row-address {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

input[type="text"],
input[type="email"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-primary);
    background-color: #FAFAFA;
    transition: border-color 0.15s, box-shadow 0.15s, background-color 0.15s;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    background-color: #FFFFFF;
    box-shadow: 0 0 0 4px var(--ring-color);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: background-color 0.15s, transform 0.1s, box-shadow 0.15s;
    width: 100%;
    text-decoration: none;
}

.btn:active {
    transform: scale(0.98);
}

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

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

.btn-primary:focus {
    box-shadow: 0 0 0 4px var(--ring-color);
}

.btn-success {
    background-color: var(--success);
    color: #FFFFFF;
}

.btn-success:hover {
    background-color: var(--success-hover);
}

.btn-success:focus {
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
}

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

.btn-secondary:hover {
    background-color: var(--border-color);
}

/* Table styling */
.results-table-container {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

.results-table th,
.results-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.results-table th {
    background-color: #F8FAFC;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.results-table tbody tr:last-child td {
    border-bottom: none;
}

.results-table tbody tr:hover {
    background-color: #F8FAFC;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-in-stock {
    background-color: #D1FAE5;
    color: #065F46;
}

.badge-out-of-stock {
    background-color: #FEE2E2;
    color: #991B1B;
}

/* Alerts / Notifications */
.alert {
    padding: 16px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    border-width: 1px;
    border-style: solid;
}

.alert-success {
    background-color: #ECFDF5;
    border-color: #A7F3D0;
    color: #065F46;
}

.alert-error {
    background-color: #FEF2F2;
    border-color: #FCA5A5;
    color: #991B1B;
}

.alert-info {
    background-color: #EFF6FF;
    border-color: #BFDBFE;
    color: #1E3A8A;
}

/* Spinner / Loading */
.spinner {
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 3px solid #FFF;
    width: 20px;
    height: 20px;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility styles */
.hidden {
    display: none !important;
}

.mt-4 {
    margin-top: 16px;
}

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

.helper-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
}