/* SaleFlex Modern Design System */

:root {
    --primary-color: #007bff;
    --primary-dark: #0056b3;
    --primary-light: #66b3ff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
    --white: #ffffff;
    --text-dark: #212529;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    --transition: all 0.3s ease;
    --border-radius: 0.5rem;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-mono: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

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

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

code {
    font-family: var(--font-family-mono);
    font-size: 0.875em;
    color: #e83e8c;
    background-color: #f8f9fa;
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
}

pre {
    background-color: #f8f9fa;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    overflow-x: auto;
    margin-bottom: 1rem;
}

pre code {
    color: var(--text-dark);
    background-color: transparent;
    padding: 0;
}

/* Header */
.sf-header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.sf-navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.sf-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.sf-logo:hover {
    text-decoration: none;
    color: var(--primary-dark);
}

.sf-nav {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.sf-nav a {
    color: var(--text-dark);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.sf-nav a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.sf-nav a.active {
    color: var(--primary-color);
}

/* Mobile Menu Toggle */
.sf-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

/* Hero Section */
.sf-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 4rem 2rem;
    text-align: center;
}

.sf-hero h1 {
    color: var(--white);
    margin-bottom: 1rem;
}

.sf-hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Container */
.sf-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.sf-section {
    padding: 4rem 0;
}

.sf-section-alt {
    background-color: var(--light-color);
}

/* Cards */
.sf-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    margin-bottom: 2rem;
    transition: var(--transition);
}

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

.sf-card-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.sf-card-title {
    margin-bottom: 0;
}

/* Badges */
.sf-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 0.25rem;
    background-color: var(--primary-color);
    color: var(--white);
}

.sf-badge-success { background-color: var(--success-color); }
.sf-badge-warning { background-color: var(--warning-color); color: var(--text-dark); }
.sf-badge-danger { background-color: var(--danger-color); }
.sf-badge-info { background-color: var(--info-color); }

/* Buttons */
.sf-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

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

.sf-btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    text-decoration: none;
}

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

.sf-btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
}

/* Lists */
.sf-list {
    list-style: none;
    padding-left: 0;
}

.sf-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

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

.sf-list-icon {
    list-style: none;
    padding-left: 0;
}

.sf-list-icon li {
    padding: 0.5rem 0;
    padding-left: 2rem;
    position: relative;
}

.sf-list-icon li i {
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Grid */
.sf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.sf-grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.sf-grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Alerts */
.sf-alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border-left: 4px solid;
}

.sf-alert-info {
    background-color: #d1ecf1;
    border-color: var(--info-color);
    color: #0c5460;
}

.sf-alert-warning {
    background-color: #fff3cd;
    border-color: var(--warning-color);
    color: #856404;
}

.sf-alert-success {
    background-color: #d4edda;
    border-color: var(--success-color);
    color: #155724;
}

.sf-alert-danger {
    background-color: #f8d7da;
    border-color: var(--danger-color);
    color: #721c24;
}

/* Footer */
.sf-footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.sf-footer a {
    color: var(--white);
    opacity: 0.8;
}

.sf-footer a:hover {
    opacity: 1;
    text-decoration: none;
}

.sf-footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.sf-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    opacity: 0.8;
}

/* Table of Contents */
.sf-toc {
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.sf-toc h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.sf-toc ul {
    list-style: none;
    padding-left: 0;
}

.sf-toc li {
    padding: 0.5rem 0;
}

.sf-toc a {
    color: var(--text-dark);
    text-decoration: none;
}

.sf-toc a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Code Blocks */
.sf-code-block {
    background-color: #282c34;
    color: #abb2bf;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    overflow-x: auto;
    margin-bottom: 1rem;
}

.sf-code-block code {
    color: #abb2bf;
    background-color: transparent;
    padding: 0;
}

/* Breadcrumb */
.sf-breadcrumb {
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.sf-breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
}

.sf-breadcrumb a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.sf-breadcrumb span {
    color: var(--text-muted);
    margin: 0 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .sf-navbar {
        flex-wrap: wrap;
    }

    .sf-menu-toggle {
        display: block;
    }

    .sf-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 1rem;
        margin-top: 1rem;
    }

    .sf-nav.active {
        display: flex;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }

    .sf-hero {
        padding: 2rem 1rem;
    }

    .sf-section {
        padding: 2rem 0;
    }

    .sf-container {
        padding: 0 1rem;
    }

    .sf-grid {
        grid-template-columns: 1fr;
    }
}

/* Hero Badges */
.sf-badge-hero {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 0.9rem;
    margin-right: 0.5rem;
}

.sf-badge-hero:last-child {
    margin-right: 0;
}

/* Hero Buttons */
.sf-btn-hero-primary {
    background: white;
    color: #007bff;
}

.sf-btn-hero-secondary {
    background: transparent;
    border-color: white;
    color: white;
}

.sf-btn-hero-cloud {
    background: rgba(255, 255, 255, 0.2);
    border-color: white;
    color: white;
}

.sf-btn-hero-primary:hover,
.sf-btn-hero-secondary:hover,
.sf-btn-hero-cloud:hover {
    background: rgba(255, 255, 255, 0.3);
    color: white;
    text-decoration: none;
}

/* Hero Text */
.sf-hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.sf-hero-description {
    margin-top: 1rem;
    font-size: 1.1rem;
    opacity: 0.95;
}

.sf-hero-buttons {
    margin-top: 2rem;
}

.sf-hero-buttons .sf-btn {
    margin-left: 1rem;
}

.sf-hero-buttons .sf-btn:first-child {
    margin-left: 0;
}

/* Card Variants */
.sf-card-cloud {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border: 2px solid var(--info-color);
}

.sf-card-cloud h2 {
    color: var(--info-color);
}

.sf-card-cloud-light {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: var(--border-radius);
}

.sf-card-centered {
    text-align: center;
    padding: 2rem;
}

/* Icon Sizes */
.sf-icon-large {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.sf-icon-primary {
    color: var(--primary-color);
}

.sf-icon-success {
    color: var(--success-color);
}

.sf-icon-info {
    color: var(--info-color);
}

/* Grid Constraints */
.sf-grid-constrained-800 {
    max-width: 800px;
    margin: 0 auto;
}

.sf-grid-constrained-900 {
    max-width: 900px;
    margin: 0 auto;
}

.sf-grid-constrained-1000 {
    max-width: 1000px;
    margin: 0 auto;
}

/* Text Sizes */
.sf-text-lg {
    font-size: 1.25rem;
}

.sf-text-xl {
    font-size: 1.125rem;
}

/* Footer Text */
.sf-footer-text-small {
    margin-top: 1rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

.sf-footer-text-small-alt {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

.sf-footer-link {
    color: var(--white);
    font-weight: 600;
}

.sf-footer-bottom-text {
    margin-top: 0.5rem;
}

/* Alert Spacing */
.sf-alert-spacing {
    margin-bottom: 2rem;
}

.sf-alert-spacing-top {
    margin-top: 2rem;
}

/* List Alignment */
.sf-list-left {
    text-align: left;
    margin-top: 1.5rem;
}

/* Section Spacing */
.sf-section-spacing {
    margin-top: 2rem;
}

.sf-section-spacing-lg {
    margin-top: 1.5rem;
}

/* Developer Section */
.sf-developer-text {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.sf-developer-text-alt {
    margin-bottom: 1.5rem;
}

.sf-developer-buttons {
    margin-top: 2rem;
}

.sf-developer-buttons .sf-btn {
    margin-left: 1rem;
}

.sf-developer-buttons .sf-btn:first-child {
    margin-left: 0;
}

/* Border Top */
.sf-border-top {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* Utilities */
.sf-text-center { text-align: center; }
.sf-text-muted { color: var(--text-muted); }
.sf-mb-0 { margin-bottom: 0; }
.sf-mb-1 { margin-bottom: 0.5rem; }
.sf-mb-2 { margin-bottom: 1rem; }
.sf-mb-3 { margin-bottom: 1.5rem; }
.sf-mb-4 { margin-bottom: 2rem; }
.sf-mt-0 { margin-top: 0; }
.sf-mt-1 { margin-top: 0.5rem; }
.sf-mt-2 { margin-top: 1rem; }
.sf-mt-3 { margin-top: 1.5rem; }
.sf-mt-4 { margin-top: 2rem; }