/* ============================================
   CSS Variables / Design Tokens
   ============================================ */
:root {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-secondary: #f97316;
    --color-secondary-dark: #ea580c;
    
    --color-background: #ffffff;
    --color-surface: #f9fafb;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-muted: #9ca3af;
    
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    /* Typography */
    --font-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', system-ui, sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', system-ui, sans-serif;
    --font-mono: 'Fira Code', 'Courier New', monospace;
    
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.875rem;   /* 14px */
    --text-base: 1rem;     /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.25rem;    /* 20px */
    --text-2xl: 1.5rem;    /* 24px */
    --text-3xl: 1.875rem;  /* 30px */
    --text-4xl: 2.25rem;   /* 36px */
    --text-5xl: 3rem;     /* 48px */
    
    /* Spacing */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 3rem;     /* 48px */
    --spacing-3xl: 4rem;     /* 64px */
    
    /* Layout */
    --container-max-width: 1200px;
    --container-padding: 1rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

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

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

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

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

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--container-padding);
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.nav-logo {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    z-index: 1001;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition-base);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-link:hover {
    background-color: var(--color-surface);
    color: var(--color-primary);
}

.nav-link.active {
    color: var(--color-primary);
    background-color: var(--color-surface);
}

.nav-link-external {
    gap: var(--spacing-xs);
}

.external-icon {
    width: 16px;
    height: 16px;
    display: inline-block;
}

/* Mobile Navigation */
@media (max-width: 767px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-background);
        flex-direction: column;
        padding: var(--spacing-3xl) var(--spacing-xl);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-slow);
        gap: var(--spacing-md);
        align-items: flex-start;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--spacing-md);
    }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: var(--text-5xl);
    color: white;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: var(--text-2xl);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 767px) {
    .hero {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--text-xl);
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--text-base);
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    line-height: 1;
}

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

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

.btn-secondary {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-border);
    color: var(--color-text);
}

.btn-link {
    background: none;
    color: var(--color-primary);
    padding: var(--spacing-sm) var(--spacing-md);
}

.btn-link:hover {
    background-color: var(--color-surface);
    color: var(--color-primary-dark);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--text-lg);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--text-sm);
}

/* ============================================
   Sections
   ============================================ */
.section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-description {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
    font-size: var(--text-lg);
}

/* ============================================
   Project Cards
   ============================================ */
.projects-section {
    background-color: var(--color-surface);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.project-card {
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    position: relative;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.project-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background-color: var(--color-secondary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 600;
    z-index: 1;
}

.install-counter-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: 500;
    margin-top: var(--spacing-sm);
    transition: all var(--transition-base);
}

.install-counter-badge svg {
    width: 14px;
    height: 14px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.install-counter-text {
    color: var(--color-text-light);
    white-space: nowrap;
}

.install-counter-badge:hover {
    background-color: var(--color-border-light);
    border-color: var(--color-primary-light);
}

.project-card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-image-placeholder {
    color: white;
    opacity: 0.8;
}

.project-card-content {
    padding: var(--spacing-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-card-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-md);
}

.project-card-description {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    flex: 1;
}

.project-card-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.project-card-features li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    color: var(--color-text-light);
}

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

.project-card-footer {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

@media (max-width: 767px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Features Section
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-xl);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-lg);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
}

.feature-title {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-md);
}

.feature-description {
    color: var(--color-text-light);
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    color: white;
    font-size: var(--text-3xl);
    margin-bottom: var(--spacing-md);
}

.cta-description {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-2xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 767px) {
    .cta-buttons {
        flex-direction: column;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--color-text);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-title {
    color: white;
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-md);
}

.footer-heading {
    color: white;
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-base);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--text-sm);
}

.footer-license {
    margin-top: var(--spacing-xs);
}

/* ============================================
   Cookie Banner
   ============================================ */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    padding: var(--spacing-lg);
    transform: translateY(100%);
    transition: transform var(--transition-slow);
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-banner[aria-hidden="true"] {
    display: none;
}

.cookie-banner-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.cookie-banner-content p {
    margin: 0;
    text-align: center;
    color: var(--color-text);
}

.cookie-banner-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

@media (max-width: 767px) {
    .cookie-banner-content {
        text-align: center;
    }
    
    .cookie-banner-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .cookie-banner-buttons .btn {
        width: 100%;
    }
}

/* Cookie Settings Modal */
.cookie-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.cookie-modal.show {
    opacity: 1;
    visibility: visible;
}

.cookie-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.cookie-modal-content {
    position: relative;
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform var(--transition-slow);
}

.cookie-modal.show .cookie-modal-content {
    transform: scale(1);
}

.cookie-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.cookie-modal-header h2 {
    margin: 0;
    font-size: var(--font-size-xl);
    color: var(--color-text);
}

.cookie-modal-close {
    background: none;
    border: none;
    padding: var(--spacing-xs);
    cursor: pointer;
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
}

.cookie-modal-close:hover {
    background-color: var(--color-border);
}

.cookie-modal-body {
    padding: var(--spacing-lg);
}

.cookie-modal-body > p {
    margin: 0 0 var(--spacing-lg) 0;
    color: var(--color-text-secondary);
}

.cookie-category {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-background-alt);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.cookie-category-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.cookie-category-info {
    flex: 1;
}

.cookie-category-info h3 {
    margin: 0 0 var(--spacing-xs) 0;
    font-size: var(--font-size-md);
    color: var(--color-text);
}

.cookie-category-info p {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* Cookie Toggle Switch */
.cookie-toggle {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
    flex-shrink: 0;
}

.cookie-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.cookie-toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-border);
    transition: var(--transition-fast);
    border-radius: 28px;
}

.cookie-toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: var(--transition-fast);
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.cookie-toggle input:checked + .cookie-toggle-slider {
    background-color: var(--color-primary);
}

.cookie-toggle input:checked + .cookie-toggle-slider:before {
    transform: translateX(22px);
}

.cookie-toggle input:disabled + .cookie-toggle-slider {
    opacity: 0.6;
    cursor: not-allowed;
}

.cookie-modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

@media (max-width: 767px) {
    .cookie-modal-content {
        width: 95%;
        max-height: 95vh;
    }

    .cookie-category-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .cookie-modal-footer {
        flex-direction: column;
    }

    .cookie-modal-footer .btn {
        width: 100%;
    }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
    text-align: center;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ============================================
   Detail Pages Styles
   ============================================ */
.main-content {
    min-height: 60vh;
    padding: var(--spacing-2xl) 0;
}

.main-content .section {
    background-color: var(--color-background);
}

.main-content .section:nth-child(even) {
    background-color: var(--color-surface);
}

.main-content .section > h2 {
    font-size: var(--text-3xl);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--color-text);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.main-content .section > h2::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-sm);
}

.tech-details,
.installation-guide,
.about-content,
.roadmap,
.coming-soon {
    max-width: 900px;
    margin: 0 auto;
}

/* Tech Details Styling */
.tech-details {
    display: grid;
    gap: var(--spacing-2xl);
    background-color: var(--color-background);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.tech-details > h3 {
    font-size: var(--text-2xl);
    color: var(--color-primary);
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.tech-details > h3::before {
    content: "";
    width: 4px;
    height: 24px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-sm);
}

.tech-details ul {
    list-style: none;
    margin-left: 0;
    margin-bottom: 0;
    display: grid;
    gap: var(--spacing-md);
}

.tech-details li {
    margin-bottom: 0;
    padding: var(--spacing-lg);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--color-primary);
    transition: all var(--transition-base);
    color: var(--color-text);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.tech-details li::before {
    content: "▸";
    color: var(--color-primary);
    font-weight: bold;
    font-size: var(--text-lg);
    flex-shrink: 0;
    margin-top: 2px;
}

.tech-details li:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--color-primary-light);
}

.tech-details li strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* Installation Guide Styling */
.installation-guide {
    display: grid;
    gap: var(--spacing-2xl);
    background-color: var(--color-background);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.installation-guide > h3 {
    font-size: var(--text-2xl);
    color: var(--color-primary);
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.installation-guide > h3::before {
    content: "";
    width: 4px;
    height: 24px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-sm);
}

.installation-guide ol {
    list-style: none;
    counter-reset: step-counter;
    margin-left: 0;
    margin-bottom: 0;
    display: grid;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.installation-guide ol li {
    counter-increment: step-counter;
    margin-bottom: 0;
    padding: var(--spacing-lg);
    padding-left: calc(32px + var(--spacing-lg) + var(--spacing-md));
    background-color: var(--color-background);
    border-radius: var(--radius-md);
    position: relative;
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.installation-guide ol li::before {
    content: counter(step-counter);
    position: absolute;
    left: var(--spacing-lg);
    top: var(--spacing-lg);
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-sm);
    flex-shrink: 0;
    z-index: 1;
}

.installation-guide ol li:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.installation-guide ol li ul {
    margin-top: var(--spacing-md);
    margin-left: var(--spacing-lg);
    margin-bottom: 0;
    list-style: disc;
    color: var(--color-text-light);
}

.installation-guide ol li ul li {
    padding: var(--spacing-sm) 0;
    padding-left: 0;
    background: none;
    border-radius: 0;
    box-shadow: none;
    counter-increment: none;
    position: static;
}

.installation-guide ol li ul li::before {
    display: none;
}

.installation-guide ol li ul li:hover {
    transform: none;
}

.installation-guide pre {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: #e2e8f0;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--spacing-md) 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-md);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.installation-guide code {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: #e2e8f0;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.installation-guide p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Mobile styles for installation-guide */
@media (max-width: 767px) {
    .installation-guide {
        padding: var(--spacing-lg);
        gap: var(--spacing-lg);
    }
    
    .installation-guide > h3 {
        font-size: var(--text-xl);
        flex-wrap: wrap;
    }
    
    .installation-guide ol {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .installation-guide ol li {
        padding: var(--spacing-md);
        padding-left: calc(28px + var(--spacing-md) + var(--spacing-sm));
        padding-top: calc(28px + var(--spacing-sm));
    }
    
    .installation-guide ol li::before {
        left: var(--spacing-md);
        top: var(--spacing-md);
        width: 28px;
        height: 28px;
        font-size: var(--text-xs);
    }
    
    .installation-guide ol li ul {
        margin-left: var(--spacing-md);
    }
    
    .installation-guide pre {
        padding: var(--spacing-md);
        font-size: var(--text-xs);
        word-wrap: break-word;
        white-space: pre-wrap;
        overflow-wrap: break-word;
    }
    
    .installation-guide code {
        font-size: var(--text-xs);
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
}

.about-content ul,
.roadmap ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.about-content li,
.roadmap li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

.project-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.project-links-flex {
    flex-wrap: wrap;
}

.wiki-topics {
    list-style: none;
    margin-top: var(--spacing-md);
    display: grid;
    gap: var(--spacing-sm);
}

.wiki-topics li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.wiki-topics li:last-child {
    border-bottom: none;
}

.wiki-topics a {
    color: var(--color-primary);
    text-decoration: none;
}

.wiki-topics a:hover {
    text-decoration: underline;
}

.getting-started-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.getting-started-card {
    background-color: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.getting-started-card h3 {
    margin-bottom: var(--spacing-md);
    font-size: var(--text-lg);
}

.getting-started-card ol,
.getting-started-card ul {
    padding-left: var(--spacing-lg);
}

.getting-started-card li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

.getting-started-card a {
    color: var(--color-primary);
    text-decoration: none;
}

.getting-started-card a:hover {
    text-decoration: underline;
}

.tip-box {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(249, 115, 22, 0.05) 100%);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding-left: var(--spacing-xl);
}

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

.tip-list li {
    margin-bottom: var(--spacing-md);
    padding-left: 1.75em;
    position: relative;
}

.tip-list li::before {
    content: "💡";
    position: absolute;
    left: 0;
}

.tip-list a {
    color: var(--color-primary);
    text-decoration: none;
}

.tip-list a:hover {
    text-decoration: underline;
}

.projects-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.project-overview-item {
    background-color: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.project-overview-item h3 {
    margin-bottom: var(--spacing-md);
}

.project-overview-item p {
    margin-bottom: var(--spacing-lg);
}

.project-overview-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.coming-soon {
    text-align: center;
    padding: var(--spacing-2xl);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
}

.coming-soon h2 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Contact Form Styles
   ============================================ */
.contact-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-form-wrapper {
    background-color: var(--color-surface);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.form-group label {
    font-weight: 500;
    color: var(--color-text);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-base);
    transition: all var(--transition-base);
    background-color: var(--color-background);
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input.error,
.form-group textarea.error {
    border-color: var(--color-error);
}

.error-message {
    color: var(--color-error);
    font-size: var(--text-sm);
    display: none;
}

.error-message:not(:empty) {
    display: block;
}

.checkbox-group {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-weight: normal;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 4px;
    cursor: pointer;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.checkbox-label span {
    line-height: 1.5;
}

.form-messages {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: none;
    margin-top: var(--spacing-md);
}

.form-messages.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.form-messages.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

.contact-info {
    background-color: var(--color-surface);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
}

.contact-info h2 {
    margin-bottom: var(--spacing-xl);
}

.contact-info-item {
    margin-bottom: var(--spacing-xl);
}

.contact-info-item:last-child {
    margin-bottom: 0;
}

.contact-info-item h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.contact-info-item p {
    margin-bottom: 0;
    color: var(--color-text-light);
}

.contact-info-item a {
    color: var(--color-primary);
    font-weight: 500;
}

.contact-info-item a:hover {
    text-decoration: underline;
}

@media (min-width: 768px) {
    .contact-container {
        grid-template-columns: 1.5fr 1fr;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .header,
    .footer,
    .cookie-banner,
    .btn {
        display: none;
    }
}