/* ======================
   CSS Variables & Reset
   ====================== */
:root {
    /* Blaue Farbpalette */
    --primary-color: #0066cc;
    --primary-dark: #004d99;
    --primary-light: #3385d6;
    --secondary-color: #2c3e50;
    --text-dark: #1a1a1a;
    --text-medium: #4a4a4a;
    --text-light: #6a6a6a;
    --background: #ffffff;
    --background-light: #f8f9fa;
    --background-gray: #e9ecef;
    --border-color: #dee2e6;
    --error-color: #dc3545;
    --success-color: #28a745;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
    --focus-color: #0066cc;
    --focus-shadow: 0 0 0 3px rgba(0, 102, 204, 0.25);
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

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

a:focus-visible,
button:focus-visible {
    box-shadow: var(--focus-shadow);
}

ul {
    list-style: none;
}

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

/* Skip to main content link */
.skip-to-main {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    z-index: 10000;
    font-weight: 600;
}

.skip-to-main:focus {
    top: 0;
}

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

/* ======================
   Navigation
   ====================== */
.navbar {
    background: var(--background);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-image {
    height: 50px;
    width: auto;
    transition: var(--transition);
}

.logo:hover .logo-image {
    opacity: 0.8;
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.logo-subtitle {
    font-size: 0.875rem;
    color: var(--text-medium);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background: rgba(0, 102, 204, 0.05);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: var(--transition);
}

/* ======================
   Hero Section
   ====================== */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ======================
   Buttons
   ====================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    text-align: center;
}

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

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

.btn-secondary {
    background: var(--primary-color);
    color: white;
    margin-top: 1rem;
}

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

.btn-outline {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-outline:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* ======================
   Sections
   ====================== */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-medium);
}

/* ======================
   Services Grid
   ====================== */
.services {
    background: var(--background-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: white;
}

.service-title {
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-description {
    color: var(--text-medium);
    line-height: 1.7;
}

/* ======================
   Remote Support
   ====================== */
.remote-support {
    background: white;
}

.remote-tools {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.remote-tool-card {
    background: var(--background-light);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 2px solid var(--border-color);
}

.remote-tool-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.remote-tool-logo {
    height: 80px;
    margin: 0 auto 1.5rem;
    object-fit: contain;
}

.remote-tool-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.remote-tool-card p {
    color: var(--text-medium);
}

/* ======================
   Contact CTA
   ====================== */
.contact-cta {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #34495e 100%);
    color: white;
}

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

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

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

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ======================
   Page Header
   ====================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* ======================
   Contact Section
   ====================== */
.contact-section {
    background: var(--background-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.contact-info h2 {
    font-size: 1.875rem;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.info-block {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.info-block h3 {
    font-size: 1.125rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.info-block p,
.info-block address {
    color: var(--text-medium);
    line-height: 1.7;
    font-style: normal;
}

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

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

/* ======================
   Contact Form
   ====================== */
.contact-form-wrapper {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    position: relative;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.875rem;
}

.required {
    color: var(--error-color);
}

.form-group input,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

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

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
    border-color: var(--error-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    display: none;
}

.error-message.visible {
    display: block;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 0.25rem;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-label span {
    flex: 1;
    font-size: 0.875rem;
    color: var(--text-medium);
}

.form-note {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

.form-success {
    display: none;
    padding: 1rem;
    background: var(--success-color);
    color: white;
    border-radius: var(--radius-sm);
    margin-top: 1rem;
}

.form-success.visible {
    display: block;
}

/* ======================
   Impressum Content
   ====================== */
.impressum-content {
    background: var(--background-light);
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.impressum-section {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.impressum-section h2 {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.impressum-section h3 {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin: 1.5rem 0 1rem;
    font-weight: 600;
}

.impressum-section p {
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.impressum-section a {
    color: var(--primary-color);
    font-weight: 500;
}

.impressum-section a:hover {
    text-decoration: underline;
}

.disclaimer-box {
    background: var(--background-light);
    border-left: 4px solid var(--primary-color);
}

/* ======================
   Footer
   ====================== */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2.5rem;
    margin-bottom: 2rem;
}

.footer-col h4 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-about,
.footer-col address {
    margin-bottom: 0.5rem;
    line-height: 1.6;
    font-style: normal;
}

.footer-tagline {
    opacity: 0.8;
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    opacity: 0.9;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-light);
    padding-left: 5px;
}

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

.footer-bottom p {
    opacity: 0.7;
    font-size: 0.875rem;
}

/* ======================
   Responsive Design
   ====================== */
@media (max-width: 768px) {
    /* Navigation */
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
        box-shadow: var(--shadow-md);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: var(--transition);
    }

    .nav-menu.active {
        max-height: 500px;
        opacity: 1;
    }

    .nav-menu a {
        padding: 1rem 20px;
        border-radius: 0;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    /* Hero */
    .hero {
        padding: 4rem 0;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    /* Sections */
    section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1.125rem;
    }

    /* Services Grid */
    .services-grid {
        grid-template-columns: 1fr;
    }

    /* Contact Grid */
    .contact-grid {
        grid-template-columns: 1fr;
    }

    /* Form */
    .form-row {
        grid-template-columns: 1fr;
    }

    /* Page Header */
    .page-header h1 {
        font-size: 2.25rem;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    /* CTA */
    .cta-content h2 {
        font-size: 1.875rem;
    }

    .cta-content p {
        font-size: 1.125rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .service-card {
        padding: 1.5rem;
    }

    .contact-form-wrapper {
        padding: 1.5rem;
    }

    .impressum-section {
        padding: 1.5rem;
    }
}

/* ======================
   Print Styles
   ====================== */
@media print {
    .navbar,
    .mobile-menu-toggle,
    .hero-cta,
    .contact-cta,
    .footer {
        display: none;
    }

    body {
        font-size: 12pt;
    }

    a {
        text-decoration: underline;
    }
}

/* ======================
   Animations
   ====================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.service-card,
.remote-tool-card,
.info-block {
    animation: fadeIn 0.6s ease-out;
}

/* ======================
   High Contrast Mode
   ====================== */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0052a3;
        --text-dark: #000000;
        --border-color: #000000;
    }
}

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

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* ======================
   Cookie Banner
   ====================== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--secondary-color);
    color: white;
    padding: 1.5rem;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.15);
    z-index: 9999;
    display: none;
    animation: slideUp 0.5s ease-out;
}

.cookie-banner.show {
    display: block;
}

.cookie-banner-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.cookie-banner-text {
    flex: 1;
    min-width: 300px;
}

.cookie-banner-text h3 {
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.cookie-banner-text p {
    font-size: 0.9rem;
    opacity: 0.9;
    line-height: 1.5;
}

.cookie-banner-text a {
    color: var(--primary-light);
    text-decoration: underline;
}

.cookie-banner-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.cookie-banner .btn {
    white-space: nowrap;
    padding: 0.75rem 1.5rem;
}

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

.btn-accept-all:hover {
    background: var(--primary-dark);
}

.btn-reject {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-reject:hover {
    background: rgba(255, 255, 255, 0.1);
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .cookie-banner-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .cookie-banner-actions {
        width: 100%;
        flex-direction: column;
    }

    .cookie-banner .btn {
        width: 100%;
        text-align: center;
    }

    .logo-image {
        height: 40px;
    }
}