/* ===== CSS Variables ===== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #64748b;
    --accent: #0ea5e9;
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

ul {
    list-style: none;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

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

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    padding: 12px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-weight: 500;
    color: var(--gray-700);
}

.nav-links a:hover {
    color: var(--primary);
}

.btn-nav {
    background: var(--primary);
    color: var(--white) !important;
    padding: 10px 20px;
    border-radius: var(--radius);
}

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--gray-800);
    border-radius: 3px;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-bg-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.05);
    z-index: -1;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 700px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--gray-900);
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-700);
    margin-bottom: 36px;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

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

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

/* ===== Section Styling ===== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Services Section ===== */
.services {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--gray-50);
    padding: 36px;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 1px solid transparent;
}

.service-card:hover {
    background: var(--white);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.service-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===== About Section ===== */
.about {
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.about-lead {
    font-size: 1.25rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 24px;
}

.about-text p {
    margin-bottom: 16px;
    color: var(--gray-600);
}

.about-list {
    margin-top: 24px;
}

.about-list li {
    padding: 8px 0;
    font-weight: 500;
    color: var(--gray-700);
}

.about-stats {
    display: grid;
    gap: 20px;
}

.stat-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-label {
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 1px;
}

/* ===== Referenzen Section ===== */
.referenzen {
    background: var(--white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: var(--gray-50);
    padding: 32px;
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

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

.testimonial-stars {
    color: #fbbf24;
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.testimonial-text {
    font-style: italic;
    color: var(--gray-700);
    margin-bottom: 20px;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.author-name {
    font-weight: 600;
    color: var(--gray-800);
}

.author-company {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ===== Contact Section ===== */
.contact {
    background: linear-gradient(180deg, var(--gray-50) 0%, #e0f2fe 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info {
    display: grid;
    gap: 20px;
}

.contact-card {
    background: var(--white);
    padding: 28px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.contact-icon {
    font-size: 2rem;
    margin-bottom: 12px;
    display: block;
}

.contact-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.contact-card p {
    color: var(--gray-600);
}

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

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

.contact-hint {
    margin-top: 12px;
    font-size: 0.875rem;
}

.contact-cta {
    display: flex;
    align-items: center;
}

.cta-box {
    background: var(--primary);
    color: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
}

.cta-box h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.cta-box p {
    margin-bottom: 24px;
    opacity: 0.9;
}

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

.cta-box .btn-primary:hover {
    background: var(--gray-100);
}

.cta-hint {
    margin-top: 16px;
    font-size: 0.875rem;
    opacity: 0.8;
}

/* ===== Footer ===== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 40px 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
}

.footer-brand .logo-icon {
    color: var(--primary-light);
}

.footer-links {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    justify-content: center;
}

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

.footer-copy {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero-content {
        text-align: center;
        margin: 0 auto;
    }

    .hero-content h1 {
        font-size: 2.75rem;
    }

    .hero-subtitle {
        margin: 0 auto 36px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        gap: 24px;
        box-shadow: var(--shadow-xl);
        transition: var(--transition);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-content h1 {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    .about-stats {
        grid-template-columns: 1fr;
    }

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

    .section-header h2 {
        font-size: 2rem;
    }

    section {
        padding: 60px 0;
    }

    .footer-links {
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-content h1 {
        font-size: 1.875rem;
    }

    .btn {
        padding: 12px 24px;
        width: 100%;
    }

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

    .stat-card {
        padding: 24px;
    }

    .stat-number {
        font-size: 2rem;
    }
}

/* ===== Legal Pages ===== */
.legal-page {
    padding: 120px 0 80px;
    min-height: 100vh;
}

.legal-page h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 48px;
}

.legal-section {
    margin-bottom: 40px;
}

.legal-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary);
}

.legal-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
    margin: 24px 0 12px;
}

.legal-section p {
    margin-bottom: 12px;
    color: var(--gray-600);
}

.legal-section ul {
    list-style: disc;
    padding-left: 24px;
    margin-bottom: 16px;
}

.legal-section ul li {
    margin-bottom: 8px;
    color: var(--gray-600);
}

.legal-section a {
    color: var(--primary);
}

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

.legal-section em {
    color: var(--gray-500);
}