/**
 * RubenBeuker.DE - Amt für Digitale Werkstätten
 * Main Stylesheet
 * German Bureaucratic Theme with Modern Design
 */

/* ===== CSS VARIABLES ===== */
:root {
    /* German Official Colors */
    --primary-color: #000000;           /* German Black */
    --secondary-color: #dd0000;         /* German Red */
    --accent-color: #ffcc00;            /* German Gold */
    --blue-official: #0066cc;           /* Official Blue */
    --green-approved: #28a745;          /* Approved Green */
    --red-classified: #dc3545;          /* Classified Red */
    
    /* Grays and Neutrals */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-heavy: rgba(0, 0, 0, 0.25);
    
    /* Typography */
    --font-primary: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-secondary: 'Roboto Slab', 'Times New Roman', serif;
    --font-mono: 'Fira Code', 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== RESET & BASE STYLES ===== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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: var(--spacing-md);
}

a {
    color: var(--blue-official);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ===== LAYOUT COMPONENTS ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

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

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

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

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

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

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.75rem;
}

/* ===== OFFICIAL STAMPS ===== */
.stamp {
    display: inline-block;
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    padding: var(--spacing-sm);
    text-align: center;
    font-weight: bold;
    font-size: 0.75rem;
    color: var(--primary-color);
    transform: rotate(-15deg);
    background-color: white;
    box-shadow: 0 2px 8px var(--shadow-light);
}

.stamp.small {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stamp.large {
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stamp.approved {
    border-color: var(--green-approved);
    color: var(--green-approved);
}

.stamp.classified {
    border-color: var(--red-classified);
    color: var(--red-classified);
    border-style: dashed;
}

.official-stamp {
    position: relative;
    display: inline-block;
}

.stamp-circle {
    width: 100px;
    height: 100px;
    border: 4px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    transform: rotate(-12deg);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.stamp-inner {
    text-align: center;
    font-weight: bold;
    font-size: 0.7rem;
    line-height: 1.1;
}

.stamp-line {
    display: block;
}

/* ===== HEADER STYLES ===== */
.site-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #333333 100%);
    color: white;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 12px var(--shadow-medium);
}

.main-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #333333 100%);
    color: white;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 12px var(--shadow-medium);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-family: var(--font-secondary);
    font-size: 1.25rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

.logo:hover {
    color: var(--accent-color);
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
}

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

.main-nav a {
    color: white;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.main-nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--accent-color);
    text-decoration: none;
}

.nav-classified {
    position: relative;
}

.nav-classified::before {
    content: "🔒";
    margin-right: var(--spacing-xs);
}

.language-switcher {
    display: flex;
    gap: var(--spacing-xs);
}

.lang-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn:hover,
.lang-btn.active {
    background: var(--accent-color);
    color: var(--primary-color);
    border-color: var(--accent-color);
}

/* Logo Section */
.logo-section {
    display: flex;
    align-items: center;
}

.logo-link {
    text-decoration: none;
    color: white;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo i {
    font-size: 2rem;
    color: var(--accent-color);
}

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

.logo-main {
    font-family: var(--font-secondary);
    font-size: 1.2rem;
    font-weight: bold;
    line-height: 1.1;
}

.logo-sub {
    font-size: 0.9rem;
    opacity: 0.8;
    line-height: 1.1;
}

/* Navigation Controls */
.nav-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

/* Stamp Collection Navigation */
.stamp-collection-nav {
    position: relative;
}

.stamp-collection-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    font-size: 1.2rem;
}

.stamp-collection-btn:hover {
    background: var(--accent-color);
    color: var(--primary-color);
    border-color: var(--accent-color);
    transform: scale(1.05);
}

.stamp-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--secondary-color);
    color: white;
    border-radius: 50%;
    min-width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: bold;
    border: 2px solid white;
    opacity: 0;
    transform: scale(0);
    transition: all var(--transition-normal);
}

.stamp-count:not(:empty),
.stamp-count[data-count]:not([data-count="0"]) {
    opacity: 1;
    transform: scale(1);
}

/* Always show stamp button, even with 0 stamps */
.stamp-collection-btn {
    display: flex !important;
}

.stamp-count.has-stamps {
    opacity: 1;
    transform: scale(1);
}

.stamp-collection-btn:hover .stamp-count {
    background: var(--primary-color);
    color: var(--accent-color);
}

/* Official Notice Banner */
.official-notice {
    background: var(--accent-color);
    color: var(--primary-color);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.notice-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 600;
}

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

.notice-text {
    flex: 1;
}

.notice-stamp .stamp {
    font-size: 0.7rem;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Main Navigation */
.main-navigation {
    background: rgba(0, 0, 0, 0.1);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0;
}

.nav-item {
    flex: 1;
}

.nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-sm);
    color: white;
    text-decoration: none;
    transition: all var(--transition-fast);
    border-bottom: 3px solid transparent;
    text-align: center;
    font-size: 0.875rem;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent-color);
    text-decoration: none;
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    border-bottom-color: var(--accent-color);
    color: var(--accent-color);
}

.nav-link i {
    font-size: 1.2rem;
}

.nav-text {
    font-weight: 500;
    line-height: 1.2;
}

/* Breadcrumb Navigation */
.breadcrumb {
    background: var(--bg-secondary);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
}

.breadcrumb-item:not(:last-child)::after {
    content: "›";
    margin: 0 var(--spacing-sm);
    color: var(--text-muted);
}

.breadcrumb-link {
    color: var(--blue-official);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.breadcrumb-link:hover {
    text-decoration: underline;
}

.breadcrumb-item.active {
    color: var(--text-muted);
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 9999;
    border-radius: var(--radius-sm);
}

.skip-link:focus {
    top: 6px;
}

/* Mobile Header */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 3px;
    width: 24px;
    height: 18px;
}

.hamburger-line {
    height: 2px;
    background: white;
    transition: all var(--transition-fast);
}

/* Mobile Navigation */
.nav-footer {
    display: none;
    padding: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: var(--spacing-md);
}

.nav-footer-links {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.nav-footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.875rem;
}

.nav-footer-link:hover {
    color: var(--accent-color);
}

.nav-footer-social {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Ads Section */
.ads-section {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 200px;
}

.ad-container {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    font-size: 0.875rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
}

/* ===== HERO SECTION ===== */
.hero-section {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, white 100%);
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

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

.hero-announcement {
    margin-bottom: var(--spacing-lg);
}

.announcement-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--accent-color);
    color: var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: 0 2px 8px var(--shadow-light);
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
    color: var(--text-secondary);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

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

.blueprint-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    background: var(--blue-official);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px var(--shadow-medium);
}

.blueprint-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.blueprint-section {
    aspect-ratio: 1;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.blueprint-room {
    width: 100%;
    height: 100%;
    border: 2px solid var(--blue-official);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: rgba(0, 102, 204, 0.05);
    font-size: 0.75rem;
    font-weight: bold;
    color: var(--blue-official);
    text-align: center;
    transition: all var(--transition-normal);
}

.blueprint-room i {
    font-size: 1.5rem;
}

.blueprint-room.classified {
    border-color: var(--red-classified);
    border-style: dashed;
    background: rgba(220, 53, 69, 0.05);
    color: var(--red-classified);
}

.blueprint-section:hover .blueprint-room {
    transform: scale(1.05);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.blueprint-annotations {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.annotation {
    position: absolute;
    font-size: 0.7rem;
    color: white;
    font-weight: 500;
}

.annotation-line {
    width: 20px;
    height: 1px;
    background: white;
    margin-bottom: var(--spacing-xs);
}

.top-left { top: var(--spacing-md); left: var(--spacing-md); }
.top-right { top: var(--spacing-md); right: var(--spacing-md); }
.bottom-left { bottom: var(--spacing-md); left: var(--spacing-md); }

/* ===== SERVICES SECTION ===== */
.services-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-secondary);
}

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--blue-official);
    font-weight: 600;
    margin-left: auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 4px 20px var(--shadow-light);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px var(--shadow-medium);
}

.service-card.classified {
    border: 2px dashed var(--red-classified);
    background: linear-gradient(135deg, white 0%, rgba(220, 53, 69, 0.02) 100%);
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--blue-official);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.service-card.classified .service-icon {
    background: var(--red-classified);
}

.service-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-color);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: bold;
    text-transform: uppercase;
}

.service-badge.approved {
    background: var(--green-approved);
    color: white;
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.service-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

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

.service-features li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    color: var(--text-secondary);
}

.service-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--green-approved);
    font-weight: bold;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--blue-official);
    font-weight: 600;
    padding: var(--spacing-sm) 0;
    border-bottom: 2px solid transparent;
    transition: border-color var(--transition-fast);
}

.service-link:hover {
    border-bottom-color: var(--blue-official);
    text-decoration: none;
}

/* ===== PROJECTS SECTION ===== */
.projects-section {
    padding: var(--spacing-xxl) 0;
}

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

.project-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow-light);
    transition: all var(--transition-normal);
    position: relative;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px var(--shadow-medium);
}

.project-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-placeholder {
    width: 100%;
    height: 100%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 2rem;
}

.project-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.project-content {
    padding: var(--spacing-lg);
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.project-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.project-meta {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.project-date,
.project-client {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--blue-official);
    font-weight: 600;
    text-decoration: none;
}

.project-link:hover {
    text-decoration: none;
    color: var(--primary-color);
}

.project-stamp {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
}

/* ===== CTA SECTION ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #333333 100%);
    color: white;
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden;
}

.cta-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.cta-title {
    font-size: 2.5rem;
    color: white;
    margin-bottom: var(--spacing-lg);
}

.cta-description {
    font-size: 1.1rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
}

.cta-actions {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.cta-decoration {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* ===== BLUEPRINT SECTION ===== */
.blueprint-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-secondary);
}

.blueprint-wrapper {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.blueprint-canvas {
    background: var(--blue-official);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 8px 24px var(--shadow-medium);
}

.blueprint-svg {
    width: 100%;
    height: auto;
    background: white;
    border-radius: var(--radius-md);
}

.blueprint-label {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: bold;
    fill: var(--blue-official);
    text-transform: uppercase;
}

.blueprint-label.classified {
    fill: var(--red-classified);
}

.blueprint-legend {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px var(--shadow-light);
    height: fit-content;
}

.blueprint-legend h4 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.blueprint-legend ul {
    list-style: none;
}

.blueprint-legend li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: var(--radius-sm);
    border: 2px solid;
}

.legend-color.lego {
    background: rgba(255, 221, 0, 0.2);
    border-color: var(--accent-color);
}

.legend-color.forms {
    background: rgba(0, 102, 204, 0.2);
    border-color: var(--blue-official);
}

.legend-color.classified {
    background: rgba(220, 53, 69, 0.2);
    border-color: var(--red-classified);
    border-style: dashed;
}

.legend-color.portfolio {
    background: rgba(40, 167, 69, 0.2);
    border-color: var(--green-approved);
}

.legend-color.service {
    background: rgba(23, 162, 184, 0.2);
    border-color: #17a2b8;
}

/* ===== FOOTER ===== */
.site-footer {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.main-footer {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-column h3 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

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

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--accent-color);
    text-decoration: none;
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.contact-item i {
    color: var(--accent-color);
    margin-top: 2px;
}

.official-seals {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.seal {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.seal-circle {
    width: 80px;
    height: 80px;
    border: 3px solid var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    color: var(--primary-color);
    transform: rotate(-10deg);
}

.seal-circle.german-colors {
    background: linear-gradient(to bottom, #000000 33%, #dd0000 33%, #dd0000 66%, #ffcc00 66%);
    color: white;
}

.seal-text {
    text-align: center;
    font-weight: bold;
    font-size: 0.7rem;
    line-height: 1.1;
}

.seal-line {
    display: block;
}

.seal-label {
    font-size: 0.75rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

.footer-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.divider-line {
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 0.875rem;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.8);
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.legal-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.legal-link:hover {
    color: var(--accent-color);
}

.legal-separator {
    color: rgba(255, 255, 255, 0.5);
}

.footer-credit {
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Stamp Modal Styles */
.stamp-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.stamp-modal-content {
    background: white;
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

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

.stamp-modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

.stamp-modal-body {
    padding: var(--spacing-xl);
    text-align: center;
}

.collected-stamp {
    margin-bottom: var(--spacing-xl);
}

.stamp.animated {
    animation: stampDrop 0.8s ease-out;
}

@keyframes stampDrop {
    0% {
        transform: translateY(-100px) rotate(-15deg) scale(0.5);
        opacity: 0;
    }
    50% {
        transform: translateY(10px) rotate(-15deg) scale(1.1);
        opacity: 1;
    }
    100% {
        transform: translateY(0) rotate(-15deg) scale(1);
        opacity: 1;
    }
}

.stamp-info h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

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

/* Stamp Collection Sidebar */
.stamp-collection {
    position: fixed;
    top: 50%;
    right: -300px;
    transform: translateY(-50%);
    width: 280px;
    max-height: 80vh;
    background: white;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.3);
    transition: right var(--transition-normal);
    z-index: 9999;
    overflow: hidden;
}

.stamp-collection.active {
    right: 0;
}

.stamp-collection-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--primary-color);
    color: white;
}

.stamp-collection-toggle {
    background: var(--accent-color);
    color: var(--primary-color);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
}

.stamp-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--secondary-color);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: bold;
}

.stamp-collection-content {
    padding: var(--spacing-md);
    max-height: calc(80vh - 80px);
    overflow-y: auto;
}

.collected-stamps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.collected-stamps .stamp {
    width: 60px;
    height: 60px;
    font-size: 0.6rem;
}

.stamp-collection-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10001;
}

.loading-overlay[aria-hidden="false"] {
    display: flex;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    margin-bottom: var(--spacing-lg);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--blue-official);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    color: var(--text-secondary);
    font-weight: 600;
}

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

.footer-section h4 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

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

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--accent-color);
    text-decoration: none;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-seals {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.footer-seal {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    font-size: 1.2rem;
    transition: all var(--transition-fast);
}

.footer-seal:hover {
    background: var(--accent-color);
    color: var(--primary-color);
    transform: scale(1.1);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .blueprint-wrapper {
        grid-template-columns: 1fr;
    }
    
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-large {
        width: 100%;
        justify-content: center;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.align-end { align-items: flex-end; }

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

/* ===== PRINT STYLES ===== */
@media print {
    .main-header,
    .main-footer,
    .btn,
    .mobile-menu-toggle {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .stamp {
        border: 2px solid black !important;
        color: black !important;
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles for keyboard navigation */
button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--blue-official);
    outline-offset: 2px;
}

/* Ensure aria-hidden elements cannot be focused */
[aria-hidden="true"] {
    pointer-events: none;
}

[aria-hidden="true"]:focus {
    outline: none;
}

/* But allow pointer events on clickable children when appropriate */
[aria-hidden="true"] button,
[aria-hidden="true"] a,
[aria-hidden="true"] input,
[aria-hidden="true"] select,
[aria-hidden="true"] textarea {
    pointer-events: auto;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow-light: rgba(0, 0, 0, 0.3);
        --shadow-medium: rgba(0, 0, 0, 0.4);
        --shadow-heavy: rgba(0, 0, 0, 0.5);
    }
}