/* ============================================
   BATTERIESPEICHER SOLAR - TECH REVIEW STYLE
   Font: Space Grotesk + Inter
   Colors: Purple #7c3aed, Cyan #06b6d4, Green #22c55e
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* ---------- CSS Variables ---------- */
:root {
    --primary: #7c3aed;
    --primary-dark: #6d28d9;
    --primary-light: #a78bfa;
    --accent: #06b6d4;
    --accent-dark: #0891b2;
    --accent-light: #67e8f9;
    --energy: #22c55e;
    --energy-dark: #16a34a;
    --energy-light: #86efac;
    --dark: #18181b;
    --dark-800: #27272a;
    --dark-700: #3f3f46;
    --dark-600: #52525b;
    --light: #fafafa;
    --light-200: #e4e4e7;
    --light-300: #d4d4d8;
    --light-400: #a1a1aa;
    --white: #ffffff;
    --warning: #f59e0b;
    --danger: #ef4444;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.1);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.1);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,.1), 0 8px 10px -6px rgba(0,0,0,.1);
    --shadow-xl: 0 25px 50px -12px rgba(0,0,0,.25);
    --shadow-purple: 0 10px 30px -5px rgba(124,58,237,.3);
    --shadow-cyan: 0 10px 30px -5px rgba(6,182,212,.3);
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --transition: all .3s cubic-bezier(.4,0,.2,1);
    --max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    color: var(--dark);
    background: var(--light);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

section { padding: 5rem 0; }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.text-energy { color: var(--energy); }
.text-light { color: var(--light-400); }
.text-white { color: var(--white); }

.bg-dark { background: var(--dark); color: var(--white); }
.bg-dark h2, .bg-dark h3, .bg-dark h4 { color: var(--white); }
.bg-dark-800 { background: var(--dark-800); }
.bg-light { background: var(--light); }
.bg-white { background: var(--white); }
.bg-gradient-hero {
    background: linear-gradient(135deg, rgba(24,24,27,0.85) 0%, rgba(30,27,75,0.85) 50%, rgba(39,39,42,0.85) 100%), url('../images/hero.png') center/cover no-repeat;
}
.bg-gradient-purple {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.badge {
    display: inline-block;
    padding: .25rem .75rem;
    border-radius: 9999px;
    font-size: .75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.badge-purple { background: rgba(124,58,237,.15); color: var(--primary); }
.badge-cyan { background: rgba(6,182,212,.15); color: var(--accent); }
.badge-green { background: rgba(34,197,94,.15); color: var(--energy); }
.badge-dark { background: var(--dark); color: var(--white); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .875rem 2rem;
    border-radius: var(--radius);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    line-height: 1.2;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow-purple);
}
.btn-primary:hover {
    background: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 15px 35px -5px rgba(124,58,237,.4);
}

.btn-accent {
    background: var(--accent);
    color: var(--white);
    box-shadow: var(--shadow-cyan);
}
.btn-accent:hover {
    background: var(--accent-dark);
    color: var(--white);
    transform: translateY(-2px);
}

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

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,.3);
}
.btn-outline-light:hover {
    background: rgba(255,255,255,.1);
    color: var(--white);
    border-color: var(--white);
}

.btn-lg { padding: 1.1rem 2.5rem; font-size: 1.1rem; }
.btn-sm { padding: .5rem 1.25rem; font-size: .875rem; }
.btn-icon { width: 40px; height: 40px; padding: 0; display: flex; align-items: center; justify-content: center; border-radius: 50%; }

/* ---------- Navigation ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(24,24,27,.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: .75rem 0;
    box-shadow: 0 4px 30px rgba(0,0,0,.3);
}

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

.nav-logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.35rem;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: .5rem;
}
.nav-logo:hover { color: var(--white); }
.nav-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: .25rem;
    list-style: none;
}

.nav-menu a {
    color: rgba(255,255,255,.75);
    padding: .5rem 1rem;
    border-radius: var(--radius);
    font-size: .9rem;
    font-weight: 500;
    transition: var(--transition);
}
.nav-menu a:hover,
.nav-menu a.active {
    color: var(--white);
    background: rgba(255,255,255,.08);
}

.nav-cta {
    background: var(--primary) !important;
    color: var(--white) !important;
    padding: .5rem 1.25rem !important;
    border-radius: var(--radius) !important;
    font-weight: 600 !important;
}
.nav-cta:hover {
    background: var(--primary-dark) !important;
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: .5rem;
    background: none;
    border: none;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 8rem 0 5rem;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(124,58,237,.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124,58,237,.07) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: .15;
    pointer-events: none;
}
.hero-glow-1 {
    background: var(--primary);
    top: -200px;
    right: -100px;
}
.hero-glow-2 {
    background: var(--accent);
    bottom: -200px;
    left: -100px;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 750px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem 1rem;
    background: rgba(124,58,237,.15);
    border: 1px solid rgba(124,58,237,.3);
    border-radius: 9999px;
    color: var(--primary-light);
    font-size: .85rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.hero h1 {
    color: var(--white);
    margin-bottom: 1.5rem;
    letter-spacing: -.02em;
}
.hero h1 .gradient-text {
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    color: var(--light-400);
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
}

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

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,.1);
}

.hero-stat-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    display: block;
}
.hero-stat-label {
    font-size: .85rem;
    color: var(--light-400);
}

/* ---------- Section Headers ---------- */
.section-header {
    margin-bottom: 3rem;
}
.section-header .badge { margin-bottom: 1rem; }
.section-header h2 { margin-bottom: 1rem; }
.section-header p {
    font-size: 1.1rem;
    color: var(--dark-600);
    max-width: 650px;
}
.section-header.text-center p { margin: 0 auto; }

.bg-dark .section-header p { color: var(--light-400); }

/* ---------- Product Cards ---------- */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 1.5rem;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--light-200);
    transition: var(--transition);
    position: relative;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.product-card-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    z-index: 2;
}

.product-card-header {
    padding: 2rem 1.5rem 1rem;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-800) 100%);
    position: relative;
    overflow: hidden;
}
.product-card-header::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(124,58,237,.08) 0%, transparent 70%);
}

.product-card-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.product-card-header h3 {
    color: var(--white);
    font-size: 1.3rem;
    margin-bottom: .25rem;
    position: relative;
    z-index: 1;
}
.product-card-header .product-brand {
    color: var(--light-400);
    font-size: .85rem;
    position: relative;
    z-index: 1;
}

.product-card-body {
    padding: 1.5rem;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-bottom: 1rem;
}
.product-rating-stars {
    color: var(--warning);
    font-size: 1rem;
    letter-spacing: 2px;
}
.product-rating-score {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--dark);
}
.product-rating-count {
    font-size: .8rem;
    color: var(--light-400);
}

.product-specs {
    list-style: none;
    margin-bottom: 1.25rem;
}
.product-specs li {
    display: flex;
    justify-content: space-between;
    padding: .5rem 0;
    border-bottom: 1px solid var(--light-200);
    font-size: .9rem;
}
.product-specs li:last-child { border-bottom: none; }
.product-specs .spec-label { color: var(--dark-600); }
.product-specs .spec-value { font-weight: 600; color: var(--dark); }

.product-price {
    display: flex;
    align-items: baseline;
    gap: .5rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--light);
    border-radius: var(--radius);
}
.product-price-amount {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}
.product-price-unit {
    font-size: .85rem;
    color: var(--dark-600);
}

.product-pros-cons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .75rem;
    margin-bottom: 1.25rem;
}
.pro-item, .con-item {
    font-size: .82rem;
    display: flex;
    align-items: flex-start;
    gap: .35rem;
    line-height: 1.4;
}
.pro-item::before { content: '+'; color: var(--energy); font-weight: 700; }
.con-item::before { content: '-'; color: var(--danger); font-weight: 700; }

.product-card-footer {
    padding: 0 1.5rem 1.5rem;
    display: flex;
    gap: .75rem;
}
.product-card-footer .btn { flex: 1; justify-content: center; font-size: .9rem; padding: .75rem 1rem; }

/* ---------- Comparison Table ---------- */
.comparison-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--light-200);
    box-shadow: var(--shadow);
}

.comparison-table {
    width: 100%;
    min-width: 900px;
    border-collapse: collapse;
    font-size: .9rem;
}

.comparison-table thead {
    background: var(--dark);
    color: var(--white);
}

.comparison-table th {
    padding: 1rem 1.25rem;
    text-align: left;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    white-space: nowrap;
}

.comparison-table td {
    padding: .875rem 1.25rem;
    border-bottom: 1px solid var(--light-200);
    vertical-align: middle;
}

.comparison-table tbody tr {
    transition: var(--transition);
}
.comparison-table tbody tr:hover {
    background: rgba(124,58,237,.03);
}
.comparison-table tbody tr:last-child td { border-bottom: none; }

.comparison-table .product-name {
    font-weight: 600;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: .5rem;
}

.comparison-table .highlight-cell {
    background: rgba(124,58,237,.05);
    font-weight: 600;
    color: var(--primary);
}

.table-rating {
    display: flex;
    align-items: center;
    gap: .25rem;
}
.table-rating .stars { color: var(--warning); font-size: .85rem; }
.table-rating .score { font-weight: 600; font-size: .9rem; }

/* ---------- ROI Calculator Preview ---------- */
.roi-section {
    position: relative;
    overflow: hidden;
}

.roi-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--light-200);
}

.roi-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.roi-inputs { display: flex; flex-direction: column; gap: 1.5rem; }

.roi-input-group label {
    display: block;
    font-weight: 600;
    font-size: .9rem;
    margin-bottom: .5rem;
    color: var(--dark);
}

.roi-input-group input[type="range"] {
    width: 100%;
    accent-color: var(--primary);
    height: 6px;
}

.roi-input-group .range-values {
    display: flex;
    justify-content: space-between;
    font-size: .8rem;
    color: var(--light-400);
    margin-top: .25rem;
}

.roi-input-group .range-current {
    text-align: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary);
    margin-top: .5rem;
}

.roi-results {
    background: linear-gradient(135deg, var(--dark) 0%, #1e1b4b 100%);
    border-radius: var(--radius-xl);
    padding: 2rem;
    color: var(--white);
}

.roi-result-item {
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255,255,255,.1);
}
.roi-result-item:last-child { border-bottom: none; }
.roi-result-label {
    font-size: .85rem;
    color: var(--light-400);
    margin-bottom: .25rem;
}
.roi-result-value {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
}
.roi-result-value.positive { color: var(--energy); }
.roi-result-value.accent { color: var(--accent); }

/* ---------- Facts Section ---------- */
.facts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.25rem;
}

.fact-card {
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition);
}
.fact-card:hover {
    background: rgba(255,255,255,.08);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.fact-number {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: .5rem;
    display: block;
}

.fact-card h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: .5rem;
}

.fact-card p {
    color: var(--light-400);
    font-size: .88rem;
    margin-bottom: 0;
    line-height: 1.6;
}

/* ---------- Blog Cards ---------- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
}

.blog-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--light-200);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.blog-card-image {
    height: 200px;
    background: linear-gradient(135deg, var(--dark), var(--dark-800));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}
.blog-card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(124,58,237,.1), rgba(6,182,212,.1));
}

.blog-card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: .75rem;
    font-size: .8rem;
    color: var(--light-400);
}

.blog-card-body h3 {
    font-size: 1.15rem;
    margin-bottom: .75rem;
    line-height: 1.35;
}
.blog-card-body h3 a {
    color: var(--dark);
    transition: var(--transition);
}
.blog-card-body h3 a:hover { color: var(--primary); }

.blog-card-body p {
    font-size: .9rem;
    color: var(--dark-600);
    flex: 1;
}

.blog-card-footer {
    padding: 0 1.5rem 1.5rem;
}

.blog-card-footer .read-more {
    font-weight: 600;
    font-size: .9rem;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: .35rem;
}
.blog-card-footer .read-more:hover { gap: .6rem; }

/* ---------- FAQ ---------- */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--light-200);
    border-radius: var(--radius-lg);
    margin-bottom: .75rem;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); }
.faq-item.active { border-color: var(--primary); box-shadow: var(--shadow-purple); }

.faq-question {
    width: 100%;
    padding: 1.25rem 1.5rem;
    background: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--dark);
    text-align: left;
    transition: var(--transition);
    gap: 1rem;
}
.faq-question:hover { background: var(--light); }
.faq-item.active .faq-question { background: rgba(124,58,237,.03); }

.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
    transition: var(--transition);
    color: var(--primary);
}
.faq-item.active .faq-icon {
    background: var(--primary);
    color: var(--white);
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease, padding .3s ease;
}
.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-inner {
    padding: 0 1.5rem 1.5rem;
    color: var(--dark-600);
    line-height: 1.7;
    font-size: .95rem;
}

/* ---------- CTA Section ---------- */
.cta-section {
    position: relative;
    overflow: hidden;
}

.cta-card {
    background: linear-gradient(135deg, var(--primary) 0%, #4c1d95 100%);
    border-radius: var(--radius-2xl);
    padding: 4rem;
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle, rgba(6,182,212,.15) 0%, transparent 70%);
    pointer-events: none;
}

.cta-card h2 {
    color: var(--white);
    margin-bottom: 1rem;
    position: relative;
}
.cta-card p {
    font-size: 1.15rem;
    color: rgba(255,255,255,.8);
    max-width: 600px;
    margin: 0 auto 2rem;
    position: relative;
}

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

.cta-features {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
    position: relative;
}
.cta-feature {
    display: flex;
    align-items: center;
    gap: .5rem;
    color: rgba(255,255,255,.8);
    font-size: .9rem;
}
.cta-feature-icon { color: var(--energy-light); }

/* ---------- Footer ---------- */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,.6);
    padding: 4rem 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer-brand p {
    font-size: .9rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}





.footer-col h4 {
    color: var(--white);
    font-size: .95rem;
    margin-bottom: 1.25rem;
    font-family: var(--font-heading);
}

.footer-links {
    list-style: none;
}
.footer-links li { margin-bottom: .6rem; }
.footer-links a {
    color: rgba(255,255,255,.6);
    font-size: .9rem;
    transition: var(--transition);
}
.footer-links a:hover { color: var(--white); padding-left: .25rem; }

.footer-bottom {
    padding: 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: .8rem;
}
.footer-bottom-links {
    display: flex;
    gap: 1.5rem;
}
.footer-bottom-links a { color: rgba(255,255,255,.5); font-size: .8rem; }
.footer-bottom-links a:hover { color: var(--white); }

/* ---------- Blog Article Layout ---------- */
.article-hero {
    padding: 8rem 0 3rem;
    position: relative;
}

.article-hero .container { position: relative; z-index: 2; }

.breadcrumb {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .85rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.breadcrumb a { color: var(--primary-light); }
.breadcrumb span { color: var(--light-400); }

.article-hero h1 {
    color: var(--white);
    max-width: 800px;
    margin-bottom: 1rem;
    font-size: clamp(1.75rem, 4vw, 2.75rem);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    color: var(--light-400);
    font-size: .9rem;
}
.article-meta-item {
    display: flex;
    align-items: center;
    gap: .35rem;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 1.5rem 5rem;
}

.article-content h2 {
    margin: 2.5rem 0 1rem;
    padding-top: 1rem;
}
.article-content h3 {
    margin: 2rem 0 .75rem;
}

.article-content p {
    color: var(--dark-600);
    line-height: 1.8;
}

.article-content ul, .article-content ol {
    margin: 1rem 0 1.5rem 1.5rem;
    color: var(--dark-600);
}
.article-content li {
    margin-bottom: .5rem;
    line-height: 1.7;
}

.article-content blockquote {
    border-left: 4px solid var(--primary);
    padding: 1.25rem 1.5rem;
    margin: 1.5rem 0;
    background: rgba(124,58,237,.04);
    border-radius: 0 var(--radius) var(--radius) 0;
    font-style: italic;
    color: var(--dark-600);
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: .9rem;
}
.article-content table th,
.article-content table td {
    padding: .75rem 1rem;
    border: 1px solid var(--light-200);
    text-align: left;
}
.article-content table th {
    background: var(--dark);
    color: var(--white);
    font-family: var(--font-heading);
    font-weight: 600;
}
.article-content table tr:nth-child(even) { background: var(--light); }

.info-box {
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin: 1.5rem 0;
    border: 1px solid;
}
.info-box-purple {
    background: rgba(124,58,237,.05);
    border-color: rgba(124,58,237,.2);
}
.info-box-cyan {
    background: rgba(6,182,212,.05);
    border-color: rgba(6,182,212,.2);
}
.info-box-green {
    background: rgba(34,197,94,.05);
    border-color: rgba(34,197,94,.2);
}

.info-box h4 {
    margin-bottom: .5rem;
    font-size: 1rem;
}

.article-cta {
    background: linear-gradient(135deg, var(--primary), #4c1d95);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    text-align: center;
    color: var(--white);
    margin: 3rem 0;
}
.article-cta h3 { color: var(--white); margin-bottom: .75rem; }
.article-cta p { color: rgba(255,255,255,.8); margin-bottom: 1.5rem; }

/* ---------- Wissen / Info Pages ---------- */
.page-hero {
    padding: 8rem 0 3rem;
}

.page-content {
    padding: 3rem 0 5rem;
}

.page-content .container { max-width: 900px; }

.page-content h2 { margin: 2rem 0 1rem; }
.page-content h3 { margin: 1.5rem 0 .75rem; }
.page-content p { color: var(--dark-600); line-height: 1.8; }
.page-content ul, .page-content ol {
    margin: 1rem 0 1.5rem 1.5rem;
    color: var(--dark-600);
}
.page-content li { margin-bottom: .5rem; }

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.knowledge-card {
    background: var(--white);
    border: 1px solid var(--light-200);
    border-radius: var(--radius-xl);
    padding: 2rem;
    transition: var(--transition);
}
.knowledge-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.knowledge-card .card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: rgba(124,58,237,.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.knowledge-card h3 { font-size: 1.15rem; margin-bottom: .5rem; }
.knowledge-card p { font-size: .9rem; color: var(--dark-600); margin-bottom: 0; }

/* ---------- Scroll to top ---------- */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-purple);
}
.scroll-top.visible { opacity: 1; visibility: visible; }
.scroll-top:hover { transform: translateY(-3px); background: var(--primary-dark); }

/* ---------- Cookie Banner ---------- */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--dark);
    color: rgba(255,255,255,.8);
    padding: 1.25rem;
    z-index: 9999;
    transform: translateY(100%);
    transition: transform .5s ease;
    box-shadow: 0 -4px 20px rgba(0,0,0,.3);
}
.cookie-banner.visible { transform: translateY(0); }

.cookie-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.cookie-inner p { font-size: .85rem; margin: 0; flex: 1; min-width: 200px; }
.cookie-inner p a { color: var(--accent); }

.cookie-buttons { display: flex; gap: .75rem; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .roi-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    section { padding: 3.5rem 0; }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 360px;
        height: 100vh;
        background: var(--dark);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        transition: right .3s ease;
        box-shadow: -10px 0 30px rgba(0,0,0,.3);
        align-items: flex-start;
        gap: .5rem;
    }
    .nav-menu.active { right: 0; }
    .nav-menu a { width: 100%; font-size: 1rem; }

    .nav-toggle { display: flex; }
    .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(5px, -5px); }

    .hero { min-height: auto; padding: 7rem 0 3rem; }
    .hero-stats { flex-direction: column; gap: 1.5rem; }

    .products-grid { grid-template-columns: 1fr; }
    .blog-grid { grid-template-columns: 1fr; }
    .facts-grid { grid-template-columns: 1fr 1fr; }

    .product-pros-cons { grid-template-columns: 1fr; }

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

    .cta-card { padding: 2.5rem 1.5rem; }

    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; justify-content: center; }

    .cookie-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .facts-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 1.75rem; }
    .comparison-table { font-size: .8rem; }
}

/* ---------- Animations ---------- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .6s ease, transform .6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity .6s ease, transform .6s ease;
}
.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity .6s ease, transform .6s ease;
}
.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Staggered animations */
.stagger-1 { transition-delay: .1s; }
.stagger-2 { transition-delay: .2s; }
.stagger-3 { transition-delay: .3s; }
.stagger-4 { transition-delay: .4s; }
.stagger-5 { transition-delay: .5s; }
.stagger-6 { transition-delay: .6s; }

/* ---------- Print ---------- */
@media print {
    .navbar, .cookie-banner, .scroll-top, .cta-section, .nav-toggle { display: none !important; }
    body { color: #000; background: #fff; }
    .hero { min-height: auto; background: #f0f0f0 !important; }
    section { padding: 2rem 0; }
}


/* === Mobile Logo Size === */
@media (max-width: 768px) {
  .logo img, .nav-logo img, .navbar-brand img, .nav-brand img, .navbar__logo img {
    height: 36px !important;
  }
}