/* MODERN PREMIUM CSS DESIGN SYSTEM */
:root {
    --primary-color: #4f46e5;
    --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-radius: 12px;
    --transition-speed: 0.3s;
    --glass-bg: rgba(255, 255, 255, 0.85);
}

html {
    height: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
}

/* Typography Overrides */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.025em;
}

/* Navbar */
.bg-gradient-primary {
    background: var(--primary-gradient) !important;
}

.navbar {
    padding-top: 1rem;
    padding-bottom: 1rem;
    backdrop-filter: blur(10px);
}

main {
    flex-grow: 1;
}

.footer {
    flex-shrink: 0;
    width: 100%;
}

/* Card Modernization */
.card {
    border: none;
    border-radius: var(--border-radius);
    background: var(--card-bg);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.025);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
}

.card-body {
    padding: 2rem;
}

/* Form Controls */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    padding: 0.6rem 1rem;
    transition: all 0.2s ease;
    background-color: #f8fafc;
}

.form-control:focus, .form-select:focus {
    background-color: #fff;
    border-color: #818cf8;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

/* Buttons */
.btn {
    border-radius: 8px;
    padding: 0.5rem 1.25rem;
    font-weight: 500;
    transition: all var(--transition-speed) ease;
}

.btn-primary {
    background: var(--primary-gradient);
    border: none;
}

.btn-primary:hover {
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border: none;
}

.btn-success:hover {
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    transform: translateY(-1px);
}

/* Dropdown Animation */
.dropdown-menu {
    border-radius: var(--border-radius);
    padding: 0.5rem;
    animation: fadeInDown 0.2s ease-out;
}

.dropdown-item {
    border-radius: 6px;
    padding: 0.5rem 1rem;
    transition: background-color 0.2s;
}

.dropdown-item:hover {
    background-color: #f1f5f9;
    color: var(--primary-color);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Buttons on Reservation Slots */
.btn-slot {
    border-radius: 10px;
    font-size: 0.85rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-slot:hover {
    background-color: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

.btn-slot.active {
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.4);
    transform: scale(1.05);
}

/* Table Styling Overrides */
.table {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    border-collapse: collapse;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.table thead th {
    background-color: #f8fafc;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    border-bottom: 2px solid #e2e8f0;
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid #f1f5f9;
}