/* =============================================
   🎯 SEO-DRIVEN MASTER THEME
   IT DIENST HAMBURG - 2026
   
   Business Ziel: Leads & Google Rankings
   Design Ziel: Vertrauen, Lesbarkeit, Conversion
   
   KEINE dunklen Blöcke | KEINE Design-Spielerei
   FOCUS: Content, SEO, Accessibility
============================================= */

/* ---------------------------------------------
   CSS VARIABLEN (ZENTRALE STEUERUNG)
--------------------------------------------- */
:root {
    /* Markenfarben (SEO-optimiert) */
    --color-primary: #042145;
    --color-secondary: #1F7AE0;
    --color-accent: #A8D7E8;
    
    /* Text (hoher Kontrast für SEO + Accessibility) */
    --text-dark: #042145;
    --text-body: #2D3748;
    --text-muted: #4A5568;
    --text-light: #FFFFFF;
    
    /* Background (Hell & Vertrauenswürdig) */
    --bg-white: #FFFFFF;
    --bg-light: #F5F7FA;
    --bg-subtle: #F9FAFB;
    
    /* Border & Shadows */
    --border-color: #E2E8F0;
    --border-light: #EDF2F7;
    --shadow-sm: 0 2px 8px rgba(4, 33, 69, 0.06);
    --shadow-md: 0 4px 16px rgba(4, 33, 69, 0.08);
    --shadow-lg: 0 8px 24px rgba(4, 33, 69, 0.12);
    
    /* Typography */
    --font-primary: 'Inter', 'Segoe UI', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-base: 1.0625rem;
    --line-height-base: 1.7;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
}

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

html {
    scroll-behavior: smooth;
}

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

/* =============================================
   TYPOGRAPHY (SEO-OPTIMIERT)
============================================= */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-primary);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    color: var(--text-dark);
}

h4 {
    font-size: 1.15rem;
    color: var(--color-primary);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-body);
}

a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

strong {
    font-weight: 600;
    color: var(--text-dark);
}

/* =============================================
   LAYOUT
============================================= */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.container--narrow {
    max-width: 900px;
}

.container--wide {
    max-width: 1400px;
}

/* =============================================
   HERO SECTION
============================================= */
.hero {
    background: var(--bg-white);
    padding: clamp(60px, 10vw, 120px) var(--spacing-md);
    text-align: center;
}

.hero h1 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.hero p {
    font-size: clamp(1.1rem, 3vw, 1.4rem);
    color: var(--text-body);
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

/* Hero Home Variant */
.hero-home {
    background: var(--bg-white);
    padding: clamp(60px, 10vw, 120px) var(--spacing-md);
    text-align: left;
}

.hero-home__content {
    max-width: 780px;
}

.hero-home h1 {
    margin-bottom: var(--spacing-sm);
}

.hero-home__lead {
    font-size: 1.15rem;
    color: var(--text-body);
    margin: var(--spacing-xs) 0 var(--spacing-md);
}

.hero-home__actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

/* =============================================
   SECTION PANELS
============================================= */
.section-panel {
    background: var(--bg-white);
    padding: var(--spacing-xl) 0;
}

.section-panel--light {
    background: var(--bg-light);
}

.section-panel--subtle {
    background: var(--bg-subtle);
}

.section-subtitle {
    max-width: 720px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
    color: var(--text-body);
    font-size: 1.05rem;
}

/* =============================================
   BUTTONS (CTA-OPTIMIERT)
============================================= */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
}

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

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

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

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

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* =============================================
   CARDS & GRIDS
============================================= */
/* Service Cards */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
}

.service {
    background: var(--bg-white);
    border-radius: 12px;
    padding: var(--spacing-lg);
    text-align: center;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.service:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.service i {
    font-size: 3rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
}

.service h3 {
    font-size: 1.35rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.service-tagline {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.service p {
    font-size: 0.95rem;
    line-height: 1.6;
    flex-grow: 1;
}

/* Entity List (für Leistungen) */
.entity-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-sm) 0;
    text-align: left;
}

.entity-list li {
    padding: 0.4rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-body);
}

.entity-list li::before {
    content: "•";
    color: var(--color-secondary);
    font-weight: 700;
    font-size: 1.3rem;
}

/* Trust Cards */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.trust-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: var(--spacing-lg);
    min-height: 180px;
}

.trust-card h3 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.trust-card p {
    color: var(--text-body);
    font-size: 0.95rem;
}

/* Problem Cards */
.problem-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
}

.problem-item {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: var(--spacing-lg);
}

.problem-item h3 {
    font-size: 1.15rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.problem-item p {
    color: var(--text-body);
    margin-bottom: var(--spacing-sm);
}

.problem-item a {
    color: var(--color-secondary);
    font-weight: 600;
}

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

/* Branch Cards */
.branch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

.branch-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: var(--spacing-md);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-dark);
    text-decoration: none;
    transition: all 0.2s ease;
}

.branch-card:hover {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.branch-card strong {
    font-size: 1.05rem;
    color: var(--color-primary);
}

.branch-card span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Approach Cards */
.approach-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.approach-card {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: var(--spacing-md);
    background: var(--bg-white);
}

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

.approach-card p {
    font-size: 0.95rem;
    color: var(--text-body);
}

/* Hub Grid (Interne Verlinkung) */
.hub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.hub-card {
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: var(--spacing-lg);
    background: var(--bg-white);
    transition: all 0.2s ease;
}

.hub-card:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--color-accent);
}

.hub-card h3 {
    margin-bottom: var(--spacing-sm);
}

.hub-card a {
    color: var(--color-secondary);
    font-weight: 600;
}

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

/* =============================================
   FAQ SECTION
============================================= */
.faq-mini {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: var(--spacing-lg);
    background: var(--bg-white);
    margin-bottom: var(--spacing-lg);
}

.faq-mini h3 {
    margin-top: 0;
    color: var(--color-primary);
}

.faq-mini dt {
    font-weight: 600;
    color: var(--text-dark);
    margin-top: var(--spacing-md);
    font-size: 1.05rem;
}

.faq-mini dd {
    margin-left: 0;
    margin-top: var(--spacing-xs);
    color: var(--text-body);
}

/* =============================================
   CTA PANEL (CONVERSION)
============================================= */
.cta-panel {
    background: var(--bg-light);
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    border-radius: 12px;
    margin: var(--spacing-xl) 0;
}

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

.cta-panel__phone {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin: var(--spacing-md) 0;
}

.cta-panel__phone a {
    color: var(--color-secondary);
    text-decoration: none;
}

.cta-panel__phone a:hover {
    color: var(--color-primary);
}

.cta-panel__actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.address-line {
    margin-top: var(--spacing-md);
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* =============================================
   TESTIMONIALS
============================================= */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.testimonial-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    font-size: 0.95rem;
    color: var(--text-body);
}

.testimonial-card strong {
    display: block;
    margin-top: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--color-primary);
    font-weight: 600;
}

/* Swiper Testimonials */
.testimonialSwiper {
    width: 100%;
    padding-bottom: 50px;
}

.testimonialSwiper .testimonial-card {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.05rem;
    line-height: 1.7;
    padding: var(--spacing-xl);
}

.swiper-pagination-bullet {
    background: var(--color-secondary) !important;
    width: 10px;
    height: 10px;
    opacity: 0.3;
}

.swiper-pagination-bullet-active {
    opacity: 1;
}

/* =============================================
   TECH GRID (LOGOS)
============================================= */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
}

.tech-item {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    min-height: 140px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
}

.tech-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.tech-item img {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

.tech-item span {
    font-size: 0.9rem;
    color: var(--color-primary);
    font-weight: 500;
}

/* =============================================
   FÖRDERUNG LINKS
============================================= */
.foerderung-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin: var(--spacing-lg) 0;
}

.foerderung-link {
    padding: 12px 24px;
    border-radius: 50px;
    border: 2px solid var(--color-secondary);
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.foerderung-link:hover {
    background: var(--color-secondary);
    color: var(--text-light);
}

/* =============================================
   HEADER (NAVIGATION)
============================================= */
.site-header {
    background: var(--bg-white);
    border-bottom: 3px solid var(--color-secondary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 80px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo-link {
    display: inline-flex;
    align-items: center;
}

.logo {
    width: 180px;
    height: auto;
    transition: opacity 0.2s ease;
}

.logo:hover {
    opacity: 0.85;
}

/* Desktop Navigation */
.desktop-nav {
    display: flex;
}

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

.desktop-nav .nav-list li a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.2s ease;
}

.desktop-nav .nav-list li a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 0;
    height: 3px;
    background: var(--color-secondary);
    transition: width 0.3s ease;
}

.desktop-nav .nav-list li a:hover::after,
.desktop-nav .nav-list li a.active::after {
    width: 100%;
}

.desktop-nav .nav-list li a:hover,
.desktop-nav .nav-list li a.active {
    color: var(--color-secondary);
}

/* Mobile Navigation */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--color-primary);
    cursor: pointer;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
}

.mobile-nav {
    display: none;
    flex-direction: column;
    background: var(--bg-white);
    border-top: 3px solid var(--color-secondary);
    padding: var(--spacing-md);
}

.mobile-nav.open {
    display: flex;
}

.mobile-nav a {
    color: var(--color-primary);
    padding: var(--spacing-sm) 0;
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px solid var(--border-light);
}

.mobile-nav a:hover {
    color: var(--color-secondary);
}

/* Mega Menu */
.mega-menu-full {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    width: 100%;
    background: var(--bg-white);
    border-bottom: 4px solid var(--color-secondary);
    padding: 40px 0;
    display: none;
    z-index: 9999;
    box-shadow: 0 10px 30px rgba(4,33,69,0.1);
}

.mega-inner {
    width: 90%;
    max-width: 1400px;
    margin: auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 45px;
}

.mega-col h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 14px;
}

.mega-col a {
    display: block;
    padding: 6px 0;
    font-size: 0.95rem;
    color: var(--text-dark);
    text-decoration: none;
    transition: 0.2s ease;
}

.mega-col a:hover {
    color: var(--color-secondary);
    transform: translateX(6px);
}

.mega-parent {
    position: relative;
}

.mega-parent:hover .mega-menu-full {
    display: block !important;
}

/* Menüde iken kapanmayı engelle */
.mega-menu-full:hover {
    display: block !important;
}

/* Hover köprüsü (menü ile parent arasında boşluk) */
.mega-parent::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 35px;
}

/* =============================================
   FOOTER
============================================= */
.site-footer {
    background: var(--bg-light);
    color: var(--text-dark);
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    border-top: 3px solid var(--color-secondary);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin-top: var(--spacing-md);
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

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

/* =============================================
   STICKY CTA (MOBILE)
============================================= */
.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: var(--bg-white);
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: 0 -4px 16px rgba(4, 33, 69, 0.15);
    border-top: 2px solid var(--color-secondary);
    display: none;
}

.sticky-cta-btn {
    display: block;
    background: var(--color-secondary);
    color: var(--text-light);
    text-align: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.05rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

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

/* =============================================
   RESPONSIVE
============================================= */
@media (max-width: 768px) {
    .desktop-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: inline-flex;
    }
    
    .sticky-cta {
        display: block;
    }
    
    .container {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .services-grid,
    .trust-grid,
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .mega-inner {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    h2 {
        font-size: 1.75rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .mega-inner {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

@media (prefers-contrast: high) {
    body {
        background: var(--bg-white);
        color: var(--text-dark);
    }
    
    .btn-primary {
        border: 3px solid var(--color-secondary);
    }
    
    a {
        text-decoration: underline;
    }
}

/* Focus Styles für Keyboard Navigation */
a:focus,
button:focus,
.btn:focus {
    outline: 3px solid var(--color-secondary);
    outline-offset: 2px;
}

/* =============================================
   PRINT STYLES
============================================= */
@media print {
    .site-header,
    .sticky-cta,
    .btn,
    .mobile-menu-btn {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    * {
        box-shadow: none !important;
    }
}

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

.text-left {
    text-align: left;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.hidden {
    display: none;
}

.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;
}