/* Car Wash Booking System - Documentation Styles */

/* CSS Variables */
:root {
    --primary-color: #3B82F6;
    --primary-dark: #2563EB;
    --secondary-color: #10B981;
    --text-color: #1F2937;
    --text-light: #6B7280;
    --bg-color: #FFFFFF;
    --bg-light: #F9FAFB;
    --bg-gray: #F3F4F6;
    --border-color: #E5E7EB;
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --error-color: #EF4444;
    --info-color: #3B82F6;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --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;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-light);
    font-size: 16px;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 40px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    box-shadow: var(--shadow-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0;
}

.version {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 5px;
}

/* Navigation */
.nav {
    background: var(--bg-color);
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    position: sticky;
    top: 20px;
    z-index: 100;
}

.nav a {
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    transition: var(--transition);
    font-weight: 500;
    font-size: 0.95rem;
}

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

/* Introduction */
.intro {
    background: var(--bg-color);
    padding: 40px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
}

.intro h2 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 2rem;
}

.intro p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 20px;
}

/* Sections */
.section {
    background: var(--bg-color);
    padding: 40px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
    scroll-margin-top: 100px;
}

.section h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--primary-color);
}

.section h3 {
    color: var(--text-color);
    font-size: 1.5rem;
    margin-top: 30px;
    margin-bottom: 15px;
}

.section h4 {
    color: var(--text-color);
    font-size: 1.2rem;
    margin-top: 20px;
    margin-bottom: 10px;
}

.section p {
    margin-bottom: 15px;
    line-height: 1.8;
    color: var(--text-light);
}

.section ul,
.section ol {
    margin-bottom: 20px;
    padding-left: 25px;
}

.section li {
    margin-bottom: 10px;
    line-height: 1.8;
    color: var(--text-light);
}

.section li strong {
    color: var(--text-color);
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin: 20px 0;
    border-left: 4px solid;
}

.alert strong {
    display: block;
    margin-bottom: 5px;
}

.alert-info {
    background-color: #EFF6FF;
    border-color: var(--info-color);
    color: #1E40AF;
}

.alert-success {
    background-color: #F0FDF4;
    border-color: var(--success-color);
    color: #166534;
}

.alert-warning {
    background-color: #FFFBEB;
    border-color: var(--warning-color);
    color: #92400E;
}

.alert-error {
    background-color: #FEF2F2;
    border-color: var(--error-color);
    color: #991B1B;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.feature-card {
    background: var(--bg-light);
    padding: 25px;
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.feature-card h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-top: 0;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-light);
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* Code Blocks */
.code-block {
    background: #1F2937;
    color: #F9FAFB;
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin: 15px 0;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
}

.code-block code {
    font-size: 0.9rem;
    line-height: 1.6;
}

code {
    background: var(--bg-gray);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
    color: var(--error-color);
}

/* Tables */
.params-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: var(--bg-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.params-table thead {
    background: var(--primary-color);
    color: white;
}

.params-table th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
}

.params-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

.params-table tbody tr:hover {
    background-color: var(--bg-light);
}

.params-table code {
    background: var(--bg-gray);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
}

/* FAQ Items */
.faq-item {
    background: var(--bg-light);
    padding: 25px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
}

.faq-item h3 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.faq-item p {
    margin-bottom: 0;
}

/* Support Grid */
.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.support-card {
    background: var(--bg-light);
    padding: 25px;
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
    text-align: center;
}

.support-card h4 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.support-card p {
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* Changelog */
.changelog {
    background: var(--bg-light);
    padding: 25px;
    border-radius: var(--border-radius);
    margin-top: 20px;
}

.changelog h4 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 15px;
}

.changelog ul {
    margin-bottom: 0;
}

/* Footer */
.footer {
    background: var(--text-color);
    color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    margin-top: 30px;
}

.footer p {
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.8);
}

.footer p:last-child {
    margin-bottom: 0;
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .header {
        padding: 30px 20px;
    }

    .logo h1 {
        font-size: 1.8rem;
    }

    .section {
        padding: 25px 20px;
    }

    .section h2 {
        font-size: 1.6rem;
    }

    .section h3 {
        font-size: 1.3rem;
    }

    .nav {
        position: static;
        flex-direction: column;
    }

    .nav a {
        display: block;
        text-align: center;
    }

    .feature-grid,
    .support-grid {
        grid-template-columns: 1fr;
    }

    .params-table {
        font-size: 0.85rem;
    }

    .params-table th,
    .params-table td {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    .logo {
        flex-direction: column;
        text-align: center;
    }

    .logo h1 {
        font-size: 1.5rem;
    }

    .section h2 {
        font-size: 1.4rem;
    }

    .code-block {
        padding: 10px;
        font-size: 0.8rem;
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
    }

    .nav {
        display: none;
    }

    .section {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid var(--border-color);
    }

    .header {
        background: var(--primary-color);
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    a {
        text-decoration: underline;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background-color: var(--primary-color);
    color: white;
}

::-moz-selection {
    background-color: var(--primary-color);
    color: white;
}