/* ===== VARIABLES ===== */
:root {
    --primary-color: #006a26;
    --primary-dark: #004d1c;
    --primary-light: #008732;
    --primary-50: #e6f4ea;
    --primary-100: #cce8d5;
    --primary-200: #99d1ab;
    --primary-300: #66ba82;
    --primary-400: #33a358;
    --primary-500: #006a26;
    --primary-600: #005520;
    --primary-700: #00401a;
    --primary-800: #002a13;
    --primary-900: #00150d;
    
    --secondary-color: #6c757d;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --white: #ffffff;
    --gray-50: #f8f9fa;
    --gray-100: #e9ecef;
    --gray-200: #dee2e6;
    --gray-300: #ced4da;
    --gray-400: #adb5bd;
    --gray-500: #6c757d;
    --gray-600: #495057;
    --gray-700: #343a40;
    --gray-800: #212529;
    --gray-900: #121416;
    
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    --gradient-primary-light: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    --gradient-hero: linear-gradient(135deg, var(--primary-400), var(--primary-600));
    --gradient-success: linear-gradient(135deg, var(--success-color), #157347);
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 107, 38, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 107, 38, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 107, 38, 0.175);
    --border-radius: 0.75rem;
    --border-radius-lg: 1rem;
    --transition: all 0.3s ease;
}

/* ===== BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

.display-1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
.display-2 { font-size: clamp(2rem, 4vw, 3.5rem); }
.display-3 { font-size: clamp(1.75rem, 3.5vw, 3rem); }
.display-4 { font-size: clamp(1.5rem, 3vw, 2.5rem); }

.lead {
    font-size: 1.25rem;
    font-weight: 300;
    line-height: 1.6;
}

.text-primary { color: var(--primary-color) !important; }
.bg-primary { background-color: var(--primary-color) !important; }
.bg-primary-dark { background-color: var(--primary-dark) !important; }

/* ===== BUTTONS ===== */
.btn {
    border-radius: var(--border-radius);
    font-weight: 600;
    padding: 0.75rem 1rem;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    box-shadow: var(--shadow);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: var(--gradient-primary-light);
    color: white;
}

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

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

.btn-success {
    background: var(--gradient-success);
    border: none;
    box-shadow: var(--shadow);
}

/* ===== CARDS ===== */
.card {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-card {
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0.5rem 1.5rem rgba(0, 107, 38, 0.1);
}

.card-body {
    padding: 2rem;
}

/* ===== HERO SECTION ===== */
.hero {
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000" opacity="0.1"><polygon fill="white" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero .lead {
    font-size: 1.375rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* ===== SECTIONS ===== */
section {
    padding: 5rem 0;
}

.bg-light {
    background-color: var(--gray-50) !important;
}

/* ===== FEATURE ICONS ===== */
.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    background: var(--gradient-primary);
    color: white;
}

.feature-icon:hover {
    transform: scale(1.05) rotate(5deg);
    background: var(--gradient-primary-light);
}

/* ===== BADGES ===== */
.badge {
    border-radius: 50px;
    padding: 0.5rem 1rem;
    font-weight: 600;
}

.badge.bg-primary {
    background: var(--gradient-primary) !important;
}

.badge.bg-success {
    background: var(--gradient-success) !important;
}

/* ===== NAVIGATION ===== */
.navbar {
    box-shadow: var(--shadow-sm);
    background: var(--white) !important;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
}

.navbar-nav .nav-link {
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
    position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary-color);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 100%;
}

/* Dark navbar variant */
.navbar-dark.bg-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark)) !important;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9);
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: white;
}

.navbar-dark .navbar-nav .nav-link::after {
    background: white;
}

/* Dropdown styles */
.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius);
    padding: 0.5rem;
}

.dropdown-item {
    border-radius: var(--border-radius);
    padding: 0.5rem 1rem;
    transition: var(--transition);
}

.dropdown-item:hover {
    background-color: var(--primary-50);
    color: var(--primary-color);
}

/* ===== UTILITIES ===== */
.rounded-lg {
    border-radius: var(--border-radius-lg);
}

.shadow-hover {
    transition: var(--transition);
}

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

.bg-primary-50 { background-color: var(--primary-50) !important; }
.bg-primary-100 { background-color: var(--primary-100) !important; }
.text-primary-600 { color: var(--primary-600) !important; }

.min-vh-100 {
    min-height: 100vh;
}

.border-primary-200 {
    border-color: var(--primary-200) !important;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    section {
        padding: 3rem 0;
    }
    
    .hero {
        text-align: center;
        padding: 3rem 0;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .card-body {
        padding: 1.5rem !important;
    }
    
    .step-process::before {
        display: none;
    }
}

/* ===== CUSTOM COMPONENTS ===== */
.service-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
}

.step-process {
    position: relative;
}

.step-process::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 50%;
    width: 80%;
    height: 2px;
    background: var(--gray-300);
    transform: translateX(-50%);
    z-index: 1;
}

/* ===== LOADING STATES ===== */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* ===== FORM ELEMENTS ===== */
.form-control {
    border-radius: var(--border-radius);
    border: 2px solid var(--gray-300);
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 107, 38, 0.25);
}

.input-group:focus-within .input-group-text,
.input-group:focus-within .form-control {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 0.2rem rgba(0, 107, 38, 0.1);
}

.input-group-text {
    background-color: var(--primary-50);
    border-color: var(--primary-200);
    color: var(--primary-color);
}

/* Custom focus states */
.input-group.focused .input-group-text {
    background-color: var(--primary-100);
    border-color: var(--primary-color);
}

/* ===== ALERTS ===== */
.alert {
    border-radius: var(--border-radius);
    border: none;
    padding: 1rem 1.5rem;
}

.alert-success {
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    color: var(--primary-800);
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da, #f1b0b7);
    color: #721c24;
    border-left: 4px solid var(--danger-color);
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1, #b8e2e8);
    color: #0c5460;
    border-left: 4px solid var(--info-color);
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    color: #856404;
    border-left: 4px solid var(--warning-color);
}

/* ===== PROGRESS BARS ===== */
.progress {
    border-radius: 50px;
    background-color: var(--gray-200);
    overflow: hidden;
}

.progress-bar {
    background: var(--gradient-primary);
    transition: width 0.6s ease;
}

.progress-bar-step {
    height: 8px;
    background-color: var(--gray-200);
}

.step-active {
    background-color: var(--primary-color) !important;
}

/* ===== TABLE STYLES ===== */
.table {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table thead th {
    background: var(--gradient-primary);
    color: white;
    border: none;
    font-weight: 600;
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
}

/* ===== APPOINTMENT WIZARD STYLES ===== */
.service-card, .staff-card {
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.service-card:hover, .staff-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.service-card.selected, .staff-card.selected {
    border-color: var(--primary-color) !important;
    background-color: var(--primary-50);
}

.staff-avatar {
    width: 80px;
    height: 80px;
    object-fit: cover;
}

.time-slot {
    transition: var(--transition);
}

.time-slot:hover:not(:disabled) {
    transform: scale(1.05);
}

.time-slot.selected {
    background-color: var(--primary-color) !important;
    color: white !important;
    border-color: var(--primary-color) !important;
}

.time-slot.booked {
    background-color: var(--danger-color) !important;
    color: white !important;
    border-color: var(--danger-color) !important;
    cursor: not-allowed;
}

.time-slot.available {
    background-color: var(--success-color) !important;
    color: white !important;
    border-color: var(--success-color) !important;
}

/* ===== LOGIN & REGISTER STYLES ===== */
.password-strength .progress {
    background-color: var(--gray-200);
}

#passwordStrength {
    transition: var(--transition);
}

/* ===== ADMIN STYLES ===== */
.sidebar {
    min-height: 100vh;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
    background: var(--gray-900);
}

.sidebar .nav-link {
    color: var(--gray-400);
    padding: 0.75rem 1rem;
    border-left: 3px solid transparent;
    transition: var(--transition);
}

.sidebar .nav-link:hover {
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.1);
}

.sidebar .nav-link.active {
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--primary-color);
}

/* ===== THANK YOU PAGE STYLES ===== */
.thank-you-container {
    text-align: center;
    padding: 3rem 1rem;
}

.thank-you-icon {
    font-size: 4rem;
    color: var(--success-color);
    margin-bottom: 1.5rem;
}

.confirmation-details {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ===== ACCESSIBILITY ===== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    border-radius: var(--border-radius);
    text-decoration: none;
    z-index: 10000;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 6px;
}

.visually-hidden-focusable:not(:focus):not(:focus-within) {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* ===== PRINT STYLES ===== */
@media print {
    .navbar,
    .btn,
    .alert {
        display: none !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid var(--gray-300) !important;
    }
}

/* ===== DARK MODE SUPPORT ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --gray-50: #121416;
        --gray-100: #212529;
        --gray-200: #343a40;
        --gray-300: #495057;
        --gray-400: #6c757d;
        --gray-500: #adb5bd;
        --gray-600: #ced4da;
        --gray-700: #dee2e6;
        --gray-800: #e9ecef;
        --gray-900: #f8f9fa;
    }
}