/**
 * ElektroBRAINS - Optimierte Stylesheet
 * Version: 2.0
 * Optimiert für iOS/iPad Kompatibilität
 */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
    --color-primary: #00BCD4;
    --color-primary-dark: #0097A7;
    --color-dark: #061216;
    --color-bg: #f8f9fa;
    --color-white: #ffffff;
    --color-text: #333;
    --color-text-light: #666;
    --color-error: #e53e3e;
    --color-success: #00BCD4;
    
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 50px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

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

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

section {
    padding: 4rem 0;
}

/* ============================================
   Header
   ============================================ */
header {
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.1rem 0;
}

.logo-link {
    display: inline-block;
    text-decoration: none;
}

.logo {
    height: 100px;
    width: auto;
}

.contact-header {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-dark);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.contact-item:hover {
    color: var(--color-primary);
}

.faq-button {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-dark);
    padding: 0.55rem 1.1rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 900;
    font-size: 0.95rem;
    white-space: nowrap;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
}

.faq-button:hover {
    transform: translateY(-1px);
    filter: brightness(0.98);
    color: var(--color-dark);
}

/* ============================================
   Hero Section - iOS Optimiert (kein fixed!)
   ============================================ */
.hero {
    background: 
        linear-gradient(rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.55)),
        url("../ElektroBrainsBG.jpg") center 65% / cover no-repeat;
    color: white;
    padding: 4rem 0;
    text-align: center;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    font-weight: 900;
    text-shadow: 0 2px 6px rgba(0,0,0,0.45);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.98;
    text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}

/* ============================================
   CTA Buttons
   ============================================ */
.cta-button {
    display: inline-block;
    background: white;
    color: var(--color-primary);
    padding: 1rem 2.5rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 900;
    font-size: 1.1rem;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    color: var(--color-primary);
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-full);
    font-size: 1.1rem;
    font-weight: 900;
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

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

.btn-secondary {
    background: #e0e0e0;
    color: var(--color-dark);
}

.btn-secondary:hover {
    background: #d0d0d0;
}

/* ============================================
   Section Titles
   ============================================ */
.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 3rem;
    color: var(--color-dark);
    font-weight: 900;
}

/* ============================================
   Who We Are Section
   ============================================ */
.who-we-are {
    background: white;
}

.who-content {
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
}

.who-content h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin: 2rem 0 1rem 0;
    font-weight: 700;
}

.who-content p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--color-text);
    text-align: justify;
    hyphens: auto;
    -webkit-hyphens: auto;
}

.icon-heading {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icon-heading img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

/* ============================================
   Highlight Boxes
   ============================================ */
.highlight-box {
    background: #f0f9fa;
    border-left: 4px solid var(--color-primary);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: var(--radius-sm);
}

.highlight-box strong {
    color: var(--color-primary);
    font-size: 1.2rem;
}

/* ============================================
   Problem-Solution Section
   ============================================ */
.problem-solution {
    background: white;
}

.ps-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.ps-card {
    padding: 2rem;
    border-radius: var(--radius-md);
}

.problem-card {
    background: #fff5f5;
    border-left: 4px solid var(--color-error);
}

.solution-card {
    background: #f0f9fa;
    border-left: 4px solid var(--color-primary);
}

.ps-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.ps-card ul {
    list-style: none;
    padding-left: 0;
}

.ps-card li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.ps-card li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* ============================================
   Services Grid
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
    align-items: stretch;
}

.service-card {
    background: white;
    padding: 1.5rem 2rem 2rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.badge-beliebt {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-dark);
    padding: 5px 20px;
    border-radius: 20px;
    font-weight: 900;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 10px rgba(0, 188, 212, 0.3);
}

.service-card.premium {
    background: #1A2B3C;
    color: white;
}

.service-card.premium h3 {
    color: white;
}

.service-card.premium .price {
    color: var(--color-primary);
}

.service-card.premium .price-note {
    color: rgba(255,255,255,0.7);
}

.service-card.premium li {
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.service-icon-container {
    width: 100px;
    height: 100px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.05);
}

.premium .service-icon-container {
    background: rgba(255,255,255,0.1);
}

.service-icon-container img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}

.aviloo-logo-only {
    width: 100%;
    max-width: 200px;
    height: auto;
    margin: 0 auto 1.5rem auto;
    display: block;
}

.service-card h3 {
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
    color: var(--color-dark);
    font-weight: 900;
}

.service-card ul {
    list-style: none;
    padding: 1rem 0;
    flex-grow: 1;
    text-align: left;
}

.service-card li {
    padding: 0.7rem 0;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.service-card li::before {
    content: "✓";
    color: var(--color-primary);
    font-weight: bold;
}

.service-card li:last-child {
    border-bottom: none;
}

.price {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-primary);
    margin-top: 1rem;
}

.price-note {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: 0.5rem;
}

.certificate-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    margin-top: 1rem;
}

.certificate-img:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* ============================================
   Lightbox
   ============================================ */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: var(--radius-sm);
    box-shadow: 0 8px 30px rgba(0,0,0,0.5);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 40px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.lightbox-close:hover {
    color: var(--color-primary);
}

/* ============================================
   How It Works / Steps
   ============================================ */
.how-it-works {
    background: white;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    text-align: center;
    padding: 2rem;
}

.step-number {
    display: inline-block;
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    line-height: 60px;
    font-size: 1.8rem;
    font-weight: 900;
    margin-bottom: 1rem;
}

.step h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

/* ============================================
   Trust Section
   ============================================ */
.trust-section {
    background: #f0f9fa;
}

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

.trust-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-md);
    text-align: center;
}

.trust-icon {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 15px;
}

.trust-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

/* ============================================
   CTA Section - Kompakt
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    text-align: center;
    padding: 2.5rem 0;
}

.cta-section .container {
    max-width: 700px;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 0.6rem;
}

.cta-section p {
    font-size: 1rem;
    margin-bottom: 1.2rem;
}

.cta-section .cta-button {
    padding: 0.75rem 2rem;
    font-size: 1rem;
}

/* ============================================
   Newsletter Section - Kompakt
   ============================================ */
.newsletter-section {
    background: linear-gradient(135deg, #1a2b3c 0%, #0b1a1f 100%);
    color: white;
    padding: 1.5rem 0;
    text-align: center;
}

.newsletter-section .container {
    max-width: 550px;
}

.newsletter-section h2 {
    color: var(--color-primary);
    font-size: 1.3rem;
    margin-bottom: 0.3rem;
    font-weight: 900;
}

.newsletter-section .subtitle {
    font-size: 0.85rem;
    margin-bottom: 0.8rem;
    opacity: 0.95;
    line-height: 1.3;
}

#sib-form-container {
    max-width: 350px !important;
    margin: 0 auto !important;
}

#sib-container {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
}

.sib-form-block p {
    display: none;
}

.sib-input {
    margin-bottom: 0.4rem !important;
}

.sib-input .form__label-row label {
    display: block !important;
    text-align: left !important;
    color: rgba(255,255,255,0.9) !important;
    font-size: 0.75rem !important;
    margin-bottom: 0.2rem !important;
    font-weight: 600 !important;
    font-family: inherit !important;
}

.sib-input input {
    width: 100%;
    padding: 0.45rem 0.7rem !important;
    border-radius: 5px !important;
    border: 1px solid rgba(255,255,255,0.25) !important;
    background: rgba(0,0,0,0.3) !important;
    color: white !important;
    font-size: 0.85rem !important;
    outline: none !important;
    font-family: inherit !important;
    height: 38px !important;
}

.sib-input input:focus {
    border-color: var(--color-primary) !important;
    background: rgba(0,0,0,0.4) !important;
}

.sib-input input::placeholder {
    color: rgba(255,255,255,0.5) !important;
}

.sib-form-block__button {
    width: 100%;
    background: var(--color-primary) !important;
    color: var(--color-dark) !important;
    border: none !important;
    padding: 0.55rem 1.2rem !important;
    border-radius: 5px !important;
    font-weight: 900 !important;
    font-size: 0.85rem !important;
    cursor: pointer !important;
    transition: all var(--transition-normal) !important;
    margin-top: 0.3rem !important;
    font-family: inherit !important;
    height: 36px !important;
}

.sib-form-block__button:hover {
    transform: translateY(-1px);
    filter: brightness(1.1);
}

.newsletter-checkbox {
    text-align: left;
    margin: 0.4rem 0 0.3rem 0;
}

.newsletter-checkbox label {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.65rem;
    color: rgba(255,255,255,0.85);
    line-height: 1.25;
    cursor: pointer;
}

.newsletter-checkbox input[type="checkbox"] {
    margin-top: 2px;
    width: 14px;
    height: 14px;
    cursor: pointer;
    flex-shrink: 0;
}

.newsletter-checkbox a {
    color: var(--color-primary);
    text-decoration: underline;
}

.newsletter-checkbox a:hover {
    color: #fff;
}

.entry__error, .entry__specification {
    display: none !important;
}

/* ============================================
   Footer
   ============================================ */
footer {
    background: var(--color-dark);
    color: white;
    padding: 3rem 0 1rem 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--color-primary);
    font-size: 1.2rem;
}

.footer-section p {
    line-height: 1.8;
    margin: 0;
}

.footer-section a {
    color: white;
    text-decoration: none;
    display: block;
    padding: 0.4rem 0;
    line-height: 1.6;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ============================================
   Cookie Banner
   ============================================ */
.cookie-banner {
    position: fixed;
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    background: rgba(17,17,17,0.95);
    color: #f1f1f1;
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 14px;
    padding: 1rem;
    z-index: 9999;
    display: none;
    box-shadow: 0 18px 50px rgba(0,0,0,0.35);
}

.cookie-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1rem;
    align-items: center;
}

.cookie-text {
    font-size: 0.95rem;
    color: #e6e6e6;
}

.cookie-text a {
    color: #ffff;
    text-decoration: underline;
}

.cookie-actions {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.cookie-btn {
    border-radius: 999px;
    padding: 0.7rem 1.1rem;
    font-weight: 900;
    border: 1px solid rgba(255,255,255,0.18);
    cursor: pointer;
    background: transparent;
    color: #fff;
    transition: all var(--transition-fast);
}

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

.cookie-btn.primary:hover {
    filter: brightness(0.98);
}

/* ============================================
   Scroll Animations (iOS-kompatibel)
   ============================================ */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    will-change: opacity, transform;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered Animations für Karten */
.animate-stagger .animate-on-scroll:nth-child(1) { transition-delay: 0s; }
.animate-stagger .animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-stagger .animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-stagger .animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }
.animate-stagger .animate-on-scroll:nth-child(5) { transition-delay: 0.4s; }
.animate-stagger .animate-on-scroll:nth-child(6) { transition-delay: 0.5s; }

/* Fade-In von links */
.animate-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-left.animated {
    opacity: 1;
    transform: translateX(0);
}

/* Fade-In von rechts */
.animate-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-right.animated {
    opacity: 1;
    transform: translateX(0);
}

/* Scale Animation */
.animate-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.animate-scale.animated {
    opacity: 1;
    transform: scale(1);
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .animate-on-scroll,
    .animate-left,
    .animate-right,
    .animate-scale {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

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

    .faq-button {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

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

    .contact-header {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-end;
    }

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

    .cookie-inner {
        grid-template-columns: 1fr;
    }

    .cookie-actions {
        justify-content: flex-start;
    }

    .lightbox-close {
        top: 10px;
        right: 20px;
        font-size: 30px;
    }

    .newsletter-section h2 {
        font-size: 1.2rem;
    }

    .newsletter-section .subtitle {
        font-size: 0.8rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .cta-section {
        padding: 2rem 0;
    }
    
    .cta-section h2 {
        font-size: 1.6rem;
    }
    
    .cta-section .cta-button {
        padding: 0.65rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .newsletter-section {
        padding: 1.2rem 0;
    }
    
    #sib-form-container {
        max-width: 300px !important;
    }
    
    .sib-input input {
        height: 36px !important;
    }
}