/* ============================================
   AutoPro Workshop - Modern Design System
   ============================================ */

/* CSS Variables */
:root {
    /* Primary Colors */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;
    
    /* Neutral Colors */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.625rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.25rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-50);
}

img, svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gray-900);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-600);
    color: white;
    border-radius: var(--radius-lg);
}

.logo-icon svg {
    width: 24px;
    height: 24px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    list-style: none;
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-600);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--primary-600);
}

.nav-cta {
    background: var(--primary-600);
    color: white !important;
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast) !important;
}

.nav-cta:hover {
    background: var(--primary-700);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.nav-admin {
    color: var(--gray-400) !important;
    font-size: 0.875rem !important;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    border-radius: 2px;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(72px + var(--space-16)) 0 var(--space-16);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-50) 0%, white 50%, var(--gray-50) 100%);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.4;
    background-image: 
        radial-gradient(circle at 20% 80%, var(--primary-200) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, var(--primary-100) 0%, transparent 50%);
}

.hero .container {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: var(--space-6);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    color: var(--gray-900);
    margin-bottom: var(--space-6);
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-500);
    margin-bottom: var(--space-8);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.hero-stats {
    display: flex;
    gap: var(--space-10);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: var(--space-1);
}

.hero-visual {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    align-items: flex-end;
}

.hero-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-5);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

.hero-card.card-2 {
    align-self: flex-start;
    animation-delay: -3s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-50);
    border-radius: var(--radius-lg);
    font-size: 1.75rem;
}

.card-text {
    display: flex;
    flex-direction: column;
}

.card-text span {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.card-text strong {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: 0.9375rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: var(--primary-600);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-700);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 0 4px var(--primary-100);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-300);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: 1rem;
}

/* ============================================
   Section Styles
   ============================================ */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-12);
}

.section-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-4);
    background: var(--primary-50);
    color: var(--primary-700);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-500);
}

/* ============================================
   Services Section
   ============================================ */
.services {
    padding: var(--space-24) 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-6);
}

.service-card {
    padding: var(--space-8);
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
    cursor: pointer;
}

.service-card:hover {
    background: white;
    border-color: var(--primary-200);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
    color: var(--primary-600);
    box-shadow: var(--shadow-sm);
}

.service-icon svg {
    width: 32px;
    height: 32px;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}

.service-card p {
    color: var(--gray-500);
    margin-bottom: var(--space-4);
    line-height: 1.6;
}

.service-price {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: var(--primary-50);
    color: var(--primary-700);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

/* ============================================
   Why Us Section
   ============================================ */
.why-us {
    padding: var(--space-24) 0;
    background: var(--gray-900);
    color: white;
}

.why-us-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.why-us .section-tag {
    background: var(--primary-900);
    color: var(--primary-300);
}

.why-us .section-title {
    color: white;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.feature {
    display: flex;
    gap: var(--space-4);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-600);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.feature-text h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.feature-text p {
    color: var(--gray-400);
    font-size: 0.9375rem;
}

.why-us-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.trust-badge {
    text-align: center;
    padding: var(--space-10);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
}

.trust-stars {
    font-size: 2rem;
    color: var(--warning);
    margin-bottom: var(--space-4);
    letter-spacing: 4px;
}

.trust-text strong {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--space-2);
}

.trust-text span {
    color: var(--gray-400);
}

/* ============================================
   Booking Section
   ============================================ */
.booking {
    padding: var(--space-24) 0;
    background: linear-gradient(180deg, var(--gray-50) 0%, white 100%);
}

.booking-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.booking-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.booking-form {
    background: white;
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

/* Form Progress */
.form-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

.progress-step.active .step-number {
    background: var(--primary-600);
    color: white;
}

.progress-step.completed .step-number {
    background: var(--success);
    color: white;
}

.step-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    color: var(--gray-500);
    font-weight: 700;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.step-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-500);
}

.progress-step.active .step-label {
    color: var(--primary-600);
}

.progress-line {
    width: 60px;
    height: 2px;
    background: var(--gray-200);
}

.progress-line.completed {
    background: var(--success);
}

/* Form Steps */
.form-steps {
    position: relative;
}

.form-step {
    display: none;
    animation: fadeIn 0.3s ease;
}

.form-step.active {
    display: block;
}

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

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

.form-grid.three-col {
    grid-template-columns: 1fr 1fr 1fr;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--space-3) var(--space-4);
    font-size: 0.9375rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    background: white;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

.form-actions {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--gray-100);
}

.btn-submit {
    position: relative;
    min-width: 180px;
}

.btn-loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.btn-submit.loading .btn-text {
    opacity: 0;
}

.btn-submit.loading .btn-loader {
    display: block;
    position: absolute;
}

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

/* Success Message */
.success-message {
    text-align: center;
    padding: var(--space-12);
    animation: scaleIn 0.4s ease;
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.success-icon {
    width: 96px;
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    background: var(--success);
    color: white;
    border-radius: 50%;
}

.success-icon svg {
    width: 48px;
    height: 48px;
}

.success-message h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}

.success-message p {
    color: var(--gray-500);
    margin-bottom: var(--space-8);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.success-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    padding: var(--space-16) 0;
    background: white;
    border-top: 1px solid var(--gray-100);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.contact-card {
    text-align: center;
    padding: var(--space-8);
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    transition: all var(--transition-fast);
}

.contact-card:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.contact-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
    background: var(--primary-50);
    color: var(--primary-600);
    border-radius: var(--radius-lg);
}

.contact-icon svg {
    width: 28px;
    height: 28px;
}

.contact-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
}

.contact-card p {
    color: var(--gray-500);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--gray-900);
    color: white;
    padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-16);
    margin-bottom: var(--space-12);
}

.footer-brand {
    max-width: 320px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--space-4);
}

.footer-logo svg {
    color: var(--primary-400);
}

.footer-brand p {
    color: var(--gray-400);
    line-height: 1.7;
}

.footer-links {
    display: flex;
    gap: var(--space-16);
}

.footer-col h5 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-400);
    margin-bottom: var(--space-4);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: var(--space-3);
}

.footer-col a {
    color: var(--gray-300);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: white;
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--gray-800);
    text-align: center;
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* ============================================
   Admin Styles
   ============================================ */
.admin-body {
    background: var(--gray-50);
}

.admin-header {
    background: white;
    border-bottom: 1px solid var(--gray-200);
}

.admin-header .nav-links a {
    color: var(--gray-600);
}

.admin-main {
    padding: calc(72px + var(--space-8)) var(--space-6) var(--space-8);
}

.admin-container {
    max-width: 1200px;
    margin: 0 auto;
}

.admin-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-8);
    flex-wrap: wrap;
    gap: var(--space-4);
}

.admin-header-bar h1 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--gray-900);
}

.admin-stats {
    display: flex;
    gap: var(--space-4);
}

.stat-card {
    padding: var(--space-4) var(--space-6);
    background: white;
    border-radius: var(--radius-xl);
    text-align: center;
    min-width: 100px;
    border: 1px solid var(--gray-100);
}

.stat-card.pending { border-top: 3px solid var(--warning); }
.stat-card.confirmed { border-top: 3px solid var(--primary-500); }
.stat-card.completed { border-top: 3px solid var(--success); }

.admin-filters {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
    align-items: end;
    padding: var(--space-6);
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
}

.filter-group select,
.filter-group input {
    padding: var(--space-2) var(--space-4);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    min-width: 160px;
}

/* Appointments List */
.appointments-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.appointment-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-6);
    padding: var(--space-6);
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-fast);
}

.appointment-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--gray-200);
}

.appointment-info h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-1);
}

.appointment-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-top: var(--space-3);
    font-size: 0.875rem;
    color: var(--gray-500);
}

.appointment-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.appointment-actions {
    display: flex;
    gap: var(--space-2);
    align-items: flex-start;
}

.status-badge {
    display: inline-flex;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.status-pending { background: #fef3c7; color: #92400e; }
.status-confirmed { background: #dbeafe; color: #1e40af; }
.status-completed { background: #d1fae5; color: #065f46; }
.status-cancelled { background: #fee2e2; color: #991b1b; }

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--space-6);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: white;
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-100);
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border: none;
    border-radius: var(--radius);
    font-size: 1.25rem;
    color: var(--gray-500);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-700);
}

.modal-body {
    padding: var(--space-6);
}

.appointment-detail {
    margin-bottom: var(--space-4);
}

.appointment-detail label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-500);
    margin-bottom: var(--space-1);
}

.appointment-detail p {
    font-weight: 600;
    color: var(--gray-900);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--gray-100);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-16);
    background: white;
    border-radius: var(--radius-2xl);
    border: 1px solid var(--gray-100);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--space-4);
}

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
}

.empty-state p {
    color: var(--gray-500);
}

.loading {
    text-align: center;
    padding: var(--space-12);
    color: var(--gray-500);
}

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .why-us-grid {
        grid-template-columns: 1fr;
    }
    
    .why-us-visual {
        order: -1;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-6);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid,
    .form-grid.three-col {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column-reverse;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-stats {
        width: 100%;
        justify-content: space-between;
    }
    
    .stat-card {
        min-width: auto;
        flex: 1;
    }
    
    .appointment-card {
        grid-template-columns: 1fr;
    }
    
    .appointment-actions {
        width: 100%;
        justify-content: flex-end;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--space-8);
    }
}