/* Landingpage Styles */

/* ========================================
   CSS Variables
   ======================================== */
:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-secondary: #64748b;
    --color-accent: #f59e0b;

    --color-blue: #3b82f6;
    --color-yellow: #eab308;
    --color-green: #22c55e;

    --color-bg-dark: #0f172a;
    --color-bg-card: #1e293b;
    --color-text: #f8fafc;
    --color-text-muted: #94a3b8;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ========================================
   Base Styles
   ======================================== */
.landingpage-body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    background: var(--color-bg-dark);
    color: var(--color-text);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* ========================================
   Navigation
   ======================================== */
#navbar {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

#navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--color-accent);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-left: 0.5rem;
}

.nav-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--color-text);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-normal);
}

.nav-link:hover::after {
    width: 100%;
}

/* ========================================
   Buttons
   ======================================== */
.btn-login {
    padding: 0.625rem 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-login:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--color-accent) 0%, #d97706 100%);
    color: #000;
    text-decoration: none;
    font-weight: 600;
    border-radius: 12px;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
}

.btn-arrow {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: transparent;
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.125rem;
}

/* ========================================
   Hero Section
   ======================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem 0 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(245, 158, 11, 0.1) 0%, transparent 40%),
        radial-gradient(ellipse at 60% 80%, rgba(34, 197, 94, 0.1) 0%, transparent 40%),
        var(--color-bg-dark);
    z-index: 0;
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 7xl;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    animation: fadeInUp 1s ease forwards;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-accent) 0%, #fbbf24 50%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: gradientMove 3s linear infinite;
}

@keyframes gradientMove {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 2.5rem;
    max-width: 540px;
}

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

.hero-3d {
    position: relative;
    height: 500px;
    animation: fadeInUp 1s ease 0.3s forwards;
    opacity: 0;
}

#hero-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    animation: fadeInUp 1s ease 0.6s forwards;
    opacity: 0;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--color-text-muted);
    border-radius: 13px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 1.5s ease-in-out infinite;
}

@keyframes scrollWheel {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
    50% { transform: translateX(-50%) translateY(10px); opacity: 0.3; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Section Styles
   ======================================== */
.section-container {
    max-width: 7xl;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Features Section
   ======================================== */
.features-section {
    padding: 8rem 0;
    background: linear-gradient(180deg, var(--color-bg-dark) 0%, rgba(30, 41, 59, 0.5) 100%);
}

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

.feature-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-blue), var(--color-accent), var(--color-green));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1.5rem;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-icon-blue { color: var(--color-blue); }
.feature-icon-yellow { color: var(--color-yellow); }
.feature-icon-green { color: var(--color-green); }

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.feature-list li::before {
    content: '✓';
    color: var(--color-accent);
    font-weight: 600;
}

/* ========================================
   Workflow Section
   ======================================== */
.workflow-section {
    padding: 8rem 0;
    background: var(--color-bg-dark);
}

.workflow-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    position: relative;
}

.workflow-connector {
    position: absolute;
    top: 60px;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-blue), var(--color-accent), var(--color-green));
    opacity: 0.3;
}

.workflow-step {
    text-align: center;
    position: relative;
}

.step-number {
    font-size: 4rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.05);
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 0;
}

.step-content {
    position: relative;
    z-index: 1;
}

.step-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.step-content p {
    color: var(--color-text-muted);
    line-height: 1.6;
    padding: 0 1rem;
}

.step-visual {
    margin-top: 2rem;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Visual: Roof */
.visual-roof {
    width: 80px;
    height: 60px;
    position: relative;
}

.visual-roof::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 0;
    border-left: 40px solid transparent;
    border-right: 40px solid transparent;
    border-bottom: 30px solid var(--color-blue);
    animation: roofGrow 1s ease forwards;
}

.visual-roof::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 10px;
    right: 10px;
    height: 30px;
    background: #1e3a5f;
    border-radius: 2px;
}

@keyframes roofGrow {
    from { transform: scaleY(0); transform-origin: bottom; }
    to { transform: scaleY(1); transform-origin: bottom; }
}

/* Visual: Components */
.visual-components {
    display: flex;
    gap: 0.5rem;
    align-items: end;
}

.component {
    width: 24px;
    background: var(--color-blue);
    border-radius: 2px;
    animation: componentGrow 0.5s ease forwards;
    opacity: 0;
}

.component.module {
    height: 40px;
    animation-delay: 0s;
}

.component.inverter {
    height: 50px;
    width: 30px;
    background: var(--color-accent);
    animation-delay: 0.2s;
}

.component.battery {
    height: 60px;
    background: var(--color-green);
    animation-delay: 0.4s;
}

@keyframes componentGrow {
    from { transform: scaleY(0); transform-origin: bottom; }
    to { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
}

/* Visual: Chart */
.visual-chart {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    height: 80px;
}

.chart-bar {
    width: 20px;
    background: var(--color-blue);
    border-radius: 4px 4px 0 0;
    animation: barGrow 0.8s ease forwards;
    opacity: 0;
}

.bar-1 { height: 40px; animation-delay: 0s; }
.bar-2 { height: 60px; background: var(--color-accent); animation-delay: 0.2s; }
.bar-3 { height: 80px; background: var(--color-green); animation-delay: 0.4s; }

@keyframes barGrow {
    from { transform: scaleY(0); transform-origin: bottom; }
    to { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
}

/* ========================================
   Zielgruppen Section
   ======================================== */
.zielgruppen-section {
    padding: 8rem 0;
    background: linear-gradient(180deg, var(--color-bg-dark) 0%, rgba(30, 41, 59, 0.3) 100%);
}

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

.zielgruppe-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all var(--transition-normal);
}

.zielgruppe-card:hover {
    transform: translateY(-4px);
    border-color: rgba(245, 158, 11, 0.3);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.zielgruppe-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    color: var(--color-accent);
}

.zielgruppe-icon svg {
    width: 100%;
    height: 100%;
}

.zielgruppe-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.zielgruppe-card ul {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
    text-align: left;
}

.zielgruppe-card li {
    padding: 0.75rem 0;
    color: var(--color-text-muted);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.zielgruppe-card li::before {
    content: '→';
    color: var(--color-accent);
}

.zielgruppe-link {
    display: inline-block;
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    transition: gap var(--transition-fast);
}

.zielgruppe-link:hover {
    gap: 0.75rem;
}

/* ========================================
   Stats Section
   ======================================== */
.stats-section {
    padding: 4rem 0;
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.1) 0%, rgba(245, 158, 11, 0.1) 50%, rgba(34, 197, 94, 0.1) 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 1rem;
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
    padding: 10rem 0;
    background: var(--color-bg-dark);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.cta-content p {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 3rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   Footer
   ======================================== */
.landingpage-footer {
    padding: 4rem 0 2rem;
    background: var(--color-bg-card);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
}

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

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        order: 2;
    }

    .hero-3d {
        order: 1;
        height: 350px;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

    .features-grid,
    .workflow-steps,
    .zielgruppen-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

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

    .hero-title {
        font-size: 3rem;
    }

    .section-title {
        font-size: 2.25rem;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .cta-content h2 {
        font-size: 2.5rem;
    }

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