/* ColdPlayer+ Website Stylesheet */

:root {
    --bg-deep: #050508;
    --bg-dark: #0a0a12;
    --bg-card: #12121e;
    --bg-card-hover: #1a1a2e;
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-cyan: #00d4aa;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-pink: #e11d48;
    --gradient-logo: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue), var(--accent-purple), var(--accent-pink));
    --gradient-glow: linear-gradient(135deg, rgba(0,212,170,0.15), rgba(139,92,246,0.15));
    --radius: 16px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Background gradient overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at 10% 20%, rgba(0,212,170,0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 80%, rgba(139,92,246,0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* Header & Navigation */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 18, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    position: relative;
    z-index: 110;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-logo);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.desktop-nav {
    display: flex;
    gap: 0.25rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);
}

.nav-link.active {
    color: var(--accent-cyan);
    background: rgba(0,212,170,0.08);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn svg {
    width: 28px;
    height: 28px;
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    height: calc(100vh - 72px);
    background: rgba(10, 10, 18, 0.98);
    backdrop-filter: blur(20px);
    z-index: 99;
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.5rem;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-lang-switcher {
    display: none;
}

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

.mobile-nav .nav-link {
    padding: 1rem;
    font-size: 1.1rem;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    border: 1px solid var(--border);
}

.mobile-nav .nav-link:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}

.mobile-nav .nav-link.active {
    border-color: rgba(0,212,170,0.3);
}

/* Main content */
main {
    position: relative;
    z-index: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

.section-sm {
    padding: 3rem 0;
}

/* Hero */
.hero {
    padding: 6rem 0 4rem;
    text-align: center;
}

.hero-logo {
    height: 80px;
    width: auto;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.25rem;
}

.hero .gradient-text {
    background: var(--gradient-logo);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-logo);
    color: white;
    box-shadow: 0 4px 20px rgba(0,212,170,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(0,212,170,0.4);
}

.btn-secondary {
    background: rgba(255,255,255,0.06);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--border-hover);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: var(--transition);
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.card-glow {
    position: relative;
    overflow: hidden;
}

.card-glow::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-glow);
    opacity: 0;
    transition: opacity 0.3s;
    border-radius: inherit;
    pointer-events: none;
}

.card-glow:hover::before {
    opacity: 1;
}

.card-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-logo);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.card-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Grid */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* Feature-Highlight-Kacheln (Startseite): 2 Reihen × 4 Spalten */
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.feature-tile {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.25rem 1.25rem 1.25rem;
    transition: var(--transition);
}

.feature-tile:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    box-shadow: var(--shadow);
}

.feature-tile-star {
    position: absolute;
    top: 0.85rem;
    left: 0.85rem;
    width: 28px;
    height: 28px;
    color: var(--accent-cyan);
    background: rgba(0, 212, 170, 0.10);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-tile-star svg {
    width: 18px;
    height: 18px;
}

.feature-tile h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.feature-tile p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.45;
    margin: 0;
}

.features-highlights-footer {
    text-align: center;
    margin-top: 2rem;
}

/* Screenshot Gallery */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
    aspect-ratio: 16 / 10;
    cursor: pointer;
    padding: 0;
    background: none;
    display: block;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.gallery-item:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* Lightbox */
.lightbox[hidden] {
    display: none;
}

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(5, 5, 8, 0.92);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.lightbox-figure {
    max-width: 95vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
}

.lightbox-image {
    max-width: 95vw;
    max-height: 82vh;
    object-fit: contain;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    touch-action: pan-y;
}

.lightbox-caption {
    margin-top: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    text-align: center;
    max-width: 600px;
}

.lightbox-counter {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-variant-numeric: tabular-nums;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.8rem;
    line-height: 1;
    min-width: 44px;
    min-height: 44px;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: var(--border-hover);
}

.lightbox-close {
    top: 1rem;
    left: 1.25rem;
    font-size: 2rem;
}

.lightbox-prev,
.lightbox-next {
    top: 50%;
    transform: translateY(-50%);
    font-size: 2.2rem;
    padding: 0 0.4rem;
}

.lightbox-prev { left: 1rem; }
.lightbox-next { right: 1rem; }

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-input, .form-textarea, .form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0,212,170,0.1);
}

.form-input::placeholder, .form-textarea::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    min-height: 140px;
    resize: vertical;
}

.form-select option {
    background: var(--bg-card);
    color: var(--text-primary);
}

/* Type switch (segmented control) */
.type-switch {
    display: flex;
    gap: 0.5rem;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.25rem;
}

.type-switch-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.6rem 0.75rem;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: calc(var(--radius-sm) - 2px);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.type-switch-btn:hover {
    color: var(--text-primary);
}

.type-switch-btn.active {
    background: var(--accent-cyan);
    color: #0a0e14;
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-size: 0.9375rem;
}

.alert-success {
    background: rgba(0,212,170,0.1);
    border: 1px solid rgba(0,212,170,0.2);
    color: var(--accent-cyan);
}

.alert-error {
    background: rgba(225,29,72,0.1);
    border: 1px solid rgba(225,29,72,0.2);
    color: #fb7185;
}

.alert-info {
    background: rgba(59,130,246,0.1);
    border: 1px solid rgba(59,130,246,0.2);
    color: var(--accent-blue);
}

/* Pricing cards */
.pricing-card {
    text-align: center;
    padding: 2.5rem 2rem;
}

.pricing-card .price {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-logo);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 1rem 0;
}

.pricing-card .price-note {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.pricing-features {
    list-style: none;
    margin: 1.5rem 0;
    padding: 0;
}

.pricing-features li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.pricing-features li::before {
    content: '✓';
    color: var(--accent-cyan);
    margin-right: 0.5rem;
    font-weight: bold;
}

/* Section headers */
.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.section-title p {
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* Download page */
.app-showcase {
    text-align: center;
    padding: 3rem 0;
}

.app-showcase img {
    width: 160px;
    height: 160px;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-lg);
}

.store-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.store-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.store-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--border-hover);
}

.store-btn svg {
    width: 32px;
    height: 32px;
}

.store-btn div {
    text-align: left;
}

.store-btn .small {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
}

.store-btn .big {
    font-size: 1.125rem;
    font-weight: 600;
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact-info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-info-item svg {
    width: 24px;
    height: 24px;
    color: var(--accent-cyan);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.contact-info-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-info-item p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Footer */
.site-footer {
    background: rgba(5, 5, 8, 0.95);
    border-top: 1px solid var(--border);
    padding: 3rem 0 1.5rem;
    margin-top: auto;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand img {
    height: 32px;
    margin-bottom: 0.75rem;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.875rem;
    max-width: 280px;
}

.footer-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color 0.2s;
}

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

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Legal pages */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-content h2 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: var(--text-primary);
}

.legal-content h3 {
    font-size: 1.125rem;
    margin: 1.5rem 0 0.5rem;
    color: var(--text-secondary);
}

.legal-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.legal-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.legal-content li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

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

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* Divider */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
    margin: 2rem 0;
}

/* Language Switcher */
.lang-switcher {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.75rem;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.lang-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    z-index: 200;
    overflow: hidden;
}

.lang-dropdown.open {
    display: block;
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

.lang-option:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
}

.lang-option.active {
    color: var(--accent-cyan);
    background: rgba(0,212,170,0.08);
}

.lang-check {
    width: 16px;
    height: 16px;
    visibility: hidden;
}

.lang-option.active .lang-check {
    visibility: visible;
}

.lang-flag {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    object-fit: cover;
}

.lang-flag-current {
    width: 20px;
    height: 20px;
}

/* RTL support */
[dir="rtl"] .header-inner {
    direction: rtl;
}

[dir="rtl"] .desktop-nav {
    direction: rtl;
}

[dir="rtl"] .hero-buttons,
[dir="rtl"] .store-buttons,
[dir="rtl"] .footer-top,
[dir="rtl"] .footer-bottom {
    direction: rtl;
}

[dir="rtl"] .contact-info-item svg {
    margin-right: 0;
    margin-left: 0.25rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .desktop-nav {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .mobile-lang-switcher {
        display: block;
        margin-left: auto;
        margin-right: 0.5rem;
    }

    .hero {
        padding: 4rem 0 2rem;
    }

    .section {
        padding: 3rem 0;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .grid-3, .grid-2 {
        grid-template-columns: 1fr;
    }

    .grid-4 {
        grid-template-columns: 1fr;
    }

    .doc-quickstart-steps {
        grid-template-columns: 1fr;
        max-width: 360px;
        margin-left: auto;
        margin-right: auto;
    }

    /* Auf Mobile Drehung zurücknehmen: gestapelte Bilder sollen nicht überstehen */
    .qs-step:nth-child(1),
    .qs-step:nth-child(2),
    .qs-step:nth-child(3) { transform: rotate(0deg); }

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

    /* Lightbox: Pfeile unten, mehr Touch-Fläche */
    .lightbox-prev,
    .lightbox-next {
        top: auto;
        bottom: 1rem;
        transform: none;
        min-width: 56px;
        min-height: 56px;
        font-size: 2rem;
    }
    .lightbox-prev { left: 1rem; }
    .lightbox-next { right: 1rem; }
    .lightbox-close {
        top: 0.75rem;
        left: 0.75rem;
        min-width: 48px;
        min-height: 48px;
    }
    .lightbox-counter {
        top: 1.25rem;
        right: 1rem;
    }
    .lightbox-image {
        max-height: 75vh;
    }

    .footer-top {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-brand p {
        max-width: 100%;
    }

    .footer-links {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* ======================
   Dokumentations-Seiten
   ====================== */

.doc-hero {
    padding: 4rem 0 2rem;
    text-align: center;
}

.doc-hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    background: var(--gradient-logo);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.doc-intro {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Schnellstart: 3 Einzelschritte (Bilder) mit CSS-Nummerierung.
   Schritt-Nummern werden per CSS-Counter gesetzt, nicht ins Bild gebacken. */
.doc-quickstart-steps {
    counter-reset: qs-step;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.qs-step {
    position: relative;
    counter-increment: qs-step;
    transition: transform 0.3s ease;
}

/* Collage-Feel: leichte Drehung pro Kachel (Step 1 links, Step 3 rechts),
   mittlere Kachel fast gerade. Zahlen nur dezent, damit Grid & Overlay stabil bleiben. */
.qs-step:nth-child(1) { transform: rotate(-4deg); }
.qs-step:nth-child(2) { transform: rotate(1deg); }
.qs-step:nth-child(3) { transform: rotate(4deg); }

/* Kachel beim Hover aufrichten */
.qs-step:hover { transform: rotate(0deg); }

.qs-step img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

/* Schrittnummer als runde Badge oben links, per CSS-Counter */
.qs-step::before {
    content: counter(qs-step);
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: var(--accent-cyan);
    color: #050508;
    font-weight: 800;
    font-size: 1rem;
    box-shadow: var(--shadow);
}

/* Diagonales Demo-Wasserzeichen auf Schritt 3 (sprachabhängig via i18n).
   Das Bild app-livetv.webp ist nicht sprachabhängig; nur der Text wird übersetzt. */
.qs-demo-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    transform: rotate(-22deg);
    pointer-events: none;
    z-index: 1;
}

.qs-demo-overlay span {
    display: block;
    color: #fff;
    font-weight: 800;
    text-transform: uppercase;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.95);
    letter-spacing: 0.08em;
    font-size: clamp(0.7rem, 2vw, 1rem);
    text-align: center;
}

.qs-demo-overlay span:nth-child(3) {
    font-size: clamp(0.6rem, 1.6vw, 0.85rem);
    letter-spacing: 0.04em;
}

.doc-screenshot img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.doc-cards {
    margin-top: 1rem;
}

.doc-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.doc-card h3 {
    margin-bottom: 0.5rem;
}

.doc-card p {
    color: var(--text-secondary);
    flex-grow: 1;
    margin-bottom: 1rem;
}

.doc-card-link {
    color: var(--accent-cyan);
    font-weight: 600;
    margin-top: auto;
}

.doc-card:hover .doc-card-link {
    color: var(--accent-blue);
}

/* Inhaltsseiten (help-install / help-playlist / features) */
.doc-content {
    max-width: 820px;
    margin: 0 auto;
}

.doc-content h2 {
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    margin-top: 3rem;
    margin-bottom: 1rem;
}

.doc-content h3 {
    font-size: 1.25rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.doc-content p,
.doc-content li {
    color: var(--text-secondary);
    line-height: 1.7;
}

.doc-content ul,
.doc-content ol {
    padding-left: 1.5rem;
    margin-bottom: 1.25rem;
}

.doc-step {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 2.5rem;
    align-items: flex-start;
}

.doc-step-number {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gradient-logo);
    color: #fff;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.doc-step-body {
    flex-grow: 1;
}

.doc-step-body h3 {
    margin-top: 0;
}

.doc-screenshot {
    margin: 1.5rem 0;
}

.doc-caption {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: center;
    margin-top: 0.5rem;
    font-style: italic;
}

.doc-back {
    display: inline-block;
    margin: 2rem 0;
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 600;
}

.doc-back:hover {
    color: var(--accent-blue);
}

.doc-link {
    display: inline-block;
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 600;
    margin-top: 0.75rem;
}

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

/* Tabs (Installationsseite: Smartphone/Tablet vs FireTV) */
.doc-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.doc-tab {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 0.85rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -1px;
    transition: var(--transition);
    font-family: inherit;
}

.doc-tab:hover {
    color: var(--text-primary);
}

.doc-tab.active {
    color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
}

.doc-tab-panel {
    display: none;
}

.doc-tab-panel.active {
    display: block;
}

.doc-tip {
    border-left: 4px solid var(--accent-cyan);
    margin: 2rem 0;
}

.doc-tip h3 {
    margin-top: 0;
    color: var(--accent-cyan);
}

.doc-note {
    border-left: 4px solid var(--accent-blue);
    margin: 2rem 0;
}

.doc-note h3 {
    margin-top: 0;
    color: var(--accent-blue);
}

/* RTL: Step-Layout spiegeln */
html[dir="rtl"] .doc-step {
    flex-direction: row-reverse;
}

html[dir="rtl"] .doc-content ul,
html[dir="rtl"] .doc-content ol {
    padding-left: 0;
    padding-right: 1.5rem;
}

@media (max-width: 768px) {
    .doc-step {
        gap: 1rem;
    }

    .doc-hero {
        padding: 2.5rem 0 1.5rem;
    }
}