/**
 * AFS-Booking Custom Styles
 * Aanvullende styling naast Tailwind CSS
 */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    /* Primary kleuren (HSL) */
    --color-primary-h: 220;
    --color-primary-s: 100%;
    --color-primary-l: 58%;

    /* Accent kleuren (HSL) */
    --color-accent-h: 280;
    --color-accent-s: 100%;
    --color-accent-l: 58%;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

/* ============================================
   GLOBAL STYLES
   ============================================ */
html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Focus states voor accessibility */
:focus-visible {
    outline: 2px solid hsl(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l));
    outline-offset: 2px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    font-weight: 500;
    font-size: 0.875rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

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

.btn-primary {
    background: linear-gradient(135deg,
        hsl(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l)) 0%,
        hsl(var(--color-accent-h), var(--color-accent-s), var(--color-accent-l)) 100%
    );
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    box-shadow: var(--shadow-lg);
    filter: brightness(1.05);
}

.btn-secondary {
    background: white;
    color: hsl(var(--color-primary-h), var(--color-primary-s), 40%);
    border: 1px solid hsl(var(--color-primary-h), var(--color-primary-s), 90%);
}

.btn-secondary:hover {
    background: hsl(var(--color-primary-h), var(--color-primary-s), 97%);
    border-color: hsl(var(--color-primary-h), var(--color-primary-s), 80%);
}

.btn-danger {
    background: hsl(0, 80%, 55%);
    color: white;
}

.btn-danger:hover {
    background: hsl(0, 80%, 45%);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.card-hover {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   FORM INPUTS
   ============================================ */
.input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    border: 1px solid hsl(220, 20%, 88%);
    border-radius: var(--radius-lg);
    background: white;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input:focus {
    outline: none;
    border-color: hsl(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l));
    box-shadow: 0 0 0 3px hsla(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l), 0.15);
}

.input::placeholder {
    color: hsl(220, 10%, 60%);
}

.input-error {
    border-color: hsl(0, 80%, 55%);
}

.input-error:focus {
    box-shadow: 0 0 0 3px hsla(0, 80%, 55%, 0.15);
}

/* ============================================
   LABELS
   ============================================ */
.label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: hsl(220, 20%, 30%);
    margin-bottom: 0.5rem;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav-link {
    display: flex;
    align-items: center;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: hsl(220, 20%, 40%);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    background: hsl(var(--color-primary-h), var(--color-primary-s), 95%);
    color: hsl(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l));
}

.nav-link.active {
    background: linear-gradient(135deg,
        hsl(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l)) 0%,
        hsl(var(--color-accent-h), var(--color-accent-s), var(--color-accent-l)) 100%
    );
    color: white;
}

/* ============================================
   TABLES
   ============================================ */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
}

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

.table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: hsl(220, 20%, 50%);
    background: hsl(220, 20%, 97%);
    border-bottom: 1px solid hsl(220, 20%, 90%);
}

.table td {
    padding: 1rem;
    font-size: 0.875rem;
    border-bottom: 1px solid hsl(220, 20%, 93%);
}

.table tbody tr {
    transition: background var(--transition-fast);
}

.table tbody tr:hover {
    background: hsl(220, 20%, 98%);
}

/* ============================================
   BADGES
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-success {
    background: hsl(140, 70%, 92%);
    color: hsl(140, 70%, 30%);
}

.badge-warning {
    background: hsl(40, 90%, 90%);
    color: hsl(40, 90%, 30%);
}

.badge-danger {
    background: hsl(0, 80%, 92%);
    color: hsl(0, 80%, 35%);
}

.badge-info {
    background: hsl(200, 80%, 92%);
    color: hsl(200, 80%, 30%);
}

/* ============================================
   LOADING SPINNER
   ============================================ */
.spinner {
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid hsl(220, 20%, 90%);
    border-top-color: hsl(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l));
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 640px) {
    .btn {
        width: 100%;
    }

    .card {
        border-radius: var(--radius-lg);
    }
}