/**
 * Main Stylesheet - Service Confirmation System
 * Professional SaaS-style design with clean, modern aesthetics
 */

/* === CSS Variables === */
:root {
    --primary-color: #0066cc;
    --primary-dark: #0052a3;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-bg: #f8f9fa;
    --dark-text: #212529;
    --border-color: #dee2e6;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.15);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* === Reset & Base Styles === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: #ffffff;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* === Navigation Bar === */
.navbar {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h2 {
    color: var(--primary-color);
    font-size: 20px;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-link {
    color: var(--dark-text);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
}

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

/* === Hero Section === */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero .subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 16px;
    text-align: center;
}

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

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

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

.btn-secondary:hover {
    background: #5a6268;
}

.btn-large {
    padding: 16px 48px;
    font-size: 18px;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-sm {
    padding: 6px 16px;
    font-size: 14px;
}

/* === Features Section === */
.features {
    padding: 80px 0;
    background: var(--light-bg);
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--dark-text);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.feature-card p {
    color: #666;
    line-height: 1.8;
}

/* === How It Works === */
.how-it-works {
    padding: 80px 0;
}

.steps {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 40px;
}

.step {
    flex: 1;
    min-width: 200px;
    max-width: 250px;
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step h3 {
    margin-bottom: 10px;
}

.step p {
    color: #666;
    font-size: 14px;
}

.step-arrow {
    font-size: 36px;
    color: var(--primary-color);
}

/* === CTA Section === */
.cta-section {
    background: linear-gradient(135deg, #0066cc 0%, #0052a3 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.95;
}

/* === Benefits Section === */
.benefits {
    padding: 80px 0;
    background: var(--light-bg);
}

.benefit-list {
    max-width: 800px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    gap: 20px;
    align-items: start;
    background: white;
    padding: 25px;
    margin-bottom: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.check-icon {
    font-size: 24px;
    color: var(--success-color);
    font-weight: bold;
    flex-shrink: 0;
}

.benefit-item h4 {
    margin-bottom: 8px;
    color: var(--primary-color);
}

.benefit-item p {
    color: #666;
    margin: 0;
}

/* === Footer === */
.footer {
    background: #2c3e50;
    color: white;
    padding: 40px 0;
    text-align: center;
}

.footer-links {
    margin-top: 15px;
}

.footer-links a {
    color: white;
    text-decoration: none;
    margin: 0 10px;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
}

/* === Verification Page === */
.verification-section {
    padding: 60px 0;
    background: var(--light-bg);
    min-height: calc(100vh - 200px);
}

.verification-container {
    max-width: 700px;
    margin: 0 auto;
}

.verification-container h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.verification-form-wrapper {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    margin: 30px 0;
}

.verification-form .form-group {
    margin-bottom: 20px;
}

.verification-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-text);
}

.verification-form input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: var(--transition);
}

.verification-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-help {
    display: block;
    margin-top: 5px;
    font-size: 14px;
    color: #666;
}

.loading-state {
    text-align: center;
    padding: 40px;
}

.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* === Result Cards === */
.result-card {
    background: white;
    border: 2px solid var(--success-color);
    border-radius: var(--border-radius);
    padding: 30px;
    margin-top: 20px;
}

.result-card.error {
    border-color: var(--danger-color);
}

.result-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.result-icon {
    font-size: 48px;
}

.result-title h3 {
    color: var(--success-color);
    margin-bottom: 5px;
}

.result-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.result-detail-item {
    padding: 15px;
    background: var(--light-bg);
    border-radius: var(--border-radius);
}

.result-detail-label {
    font-size: 12px;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.result-detail-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark-text);
}

/* === Info Box === */
.info-box {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-top: 30px;
}

.info-box h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.info-box ul {
    list-style: none;
    padding-left: 0;
}

.info-box li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
}

.info-box li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* === FAQ Section === */
.faq-section {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-top: 30px;
}

.faq-section h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    overflow: hidden;
}

.faq-item summary {
    padding: 15px 20px;
    cursor: pointer;
    font-weight: 600;
    background: var(--light-bg);
    transition: var(--transition);
}

.faq-item summary:hover {
    background: #e9ecef;
}

.faq-item p {
    padding: 15px 20px;
    color: #666;
    line-height: 1.8;
}

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

/* Login Screen */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.login-form input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: var(--transition);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Admin Dashboard */
.admin-nav {
    background: white;
    box-shadow: var(--shadow);
    padding: 15px 0;
    margin-bottom: 30px;
}

.admin-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-info {
    margin-right: 15px;
    color: #666;
    font-size: 14px;
}

.admin-content {
    padding: 20px 0;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat-icon {
    font-size: 48px;
}

.stat-label {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.stat-value {
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-color);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 24px;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

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

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Panel */
.panel {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.panel h2 {
    margin-bottom: 15px;
    color: var(--primary-color);
    font-size: 20px;
}

.panel-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

/* Forms */
.admin-form .form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 12px;
    margin-bottom: 12px;
}

.admin-form .form-group {
    display: flex;
    flex-direction: column;
}

.admin-form label {
    margin-bottom: 4px;
    font-weight: 600;
    color: var(--dark-text);
    font-size: 14px;
}

.admin-form input,
.admin-form select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
}

.admin-form input:focus,
.admin-form select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.flex-1 { flex: 1; }
.flex-2 { flex: 2; }

/* Messages */
.message {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin: 20px 0;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    margin: 15px 0;
    border: 1px solid #f5c6cb;
}

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background: white;
}

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

.data-table th {
    background: var(--light-bg);
    font-weight: 600;
    color: var(--dark-text);
}

.data-table tr:hover {
    background: var(--light-bg);
}

.table-actions {
    display: flex;
    gap: 10px;
}

.btn-icon {
    padding: 6px 12px;
    font-size: 14px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 30px;
    cursor: pointer;
    color: #999;
}

.close-modal:hover {
    color: #333;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 32px;
    }

    .section-title {
        font-size: 28px;
    }

    .steps {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

    .nav-links {
        flex-direction: column;
        gap: 10px;
    }

    .admin-form .form-row {
        grid-template-columns: 1fr;
    }

    .tabs {
        flex-direction: column;
    }

    .tab-btn {
        width: 100%;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .footer,
    .hero-buttons,
    .btn {
        display: none;
    }

    body {
        background: white;
    }
}