/* ===================================
   Bytewatch Homepage - Style.css
   Modern, Clean, Performance-Optimized
   =================================== */

/* CSS Variables */
:root {
    --color-primary: #1e3a5f;
    --color-primary-light: #2a4f7f;
    --color-primary-dark: #152a45;
    --color-accent: #3498db;
    --color-accent-light: #5dade2;
    --color-success: #27ae60;
    --color-text: #2c3e50;
    --color-text-light: #5d6d7e;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-bg-dark: #1a1a2e;
    --color-border: #e1e8ed;

    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --transition: 0.3s ease;
    --transition-fast: 0.15s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

body.menu-open {
    overflow: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary-dark);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

p {
    margin-bottom: 1rem;
}

.lead {
    font-size: 1.25rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

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

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

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

address {
    font-style: normal;
}

ul {
    list-style: none;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.section-header p {
    color: var(--color-text-light);
    font-size: 1.125rem;
    margin-top: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

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

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

.btn-outline:hover {
    background: var(--color-primary);
    color: #fff;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-menu a {
    color: var(--color-text);
    font-weight: 500;
    padding: 0.5rem;
    transition: color var(--transition-fast);
}

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

/* Button im Header Navigation */
.nav-menu .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    margin-left: 0.5rem;
}

.nav-menu .btn-primary {
    color: #fff;
}

.nav-menu .btn-primary:hover {
    color: #fff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    clip-path: polygon(20% 0, 100% 0, 100% 100%, 0% 100%);
    opacity: 0.08;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero h1 {
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

/* Services Section */
.services {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.service-card {
    position: relative;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    border: 1px solid var(--color-border);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-card.featured {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.service-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--color-primary);
    color: #fff;
    padding: 0.375rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.service-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon svg {
    width: 28px;
    height: 28px;
    color: #fff;
}

.service-card h3 {
    margin-bottom: 1rem;
}

.service-card > p {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.service-features li {
    background: var(--color-bg-alt);
    padding: 0.375rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* Second Opinion Section */
.second-opinion {
    padding: 100px 0;
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f4f8 100%);
    position: relative;
}

.second-opinion::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
}

.second-opinion-content {
    max-width: 800px;
    margin: 0 auto;
}

.section-tag {
    display: inline-block;
    background: var(--color-primary);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.second-opinion h2 {
    margin-bottom: 1.5rem;
}

.opinion-benefits {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin: 2rem 0;
}

.opinion-benefits .benefit {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: var(--color-bg);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.opinion-benefits svg {
    width: 24px;
    height: 24px;
    color: var(--color-success);
    flex-shrink: 0;
    margin-top: 2px;
}

.opinion-benefits strong {
    display: block;
    color: var(--color-primary-dark);
    margin-bottom: 0.25rem;
}

.opinion-benefits span {
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

/* Whitelabel Section */
.whitelabel {
    padding: 100px 0;
    background: var(--color-bg);
}

.whitelabel-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.whitelabel-text h2 {
    margin-bottom: 1.5rem;
}

.whitelabel-text .lead {
    margin-bottom: 1rem;
}

.whitelabel-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 2rem 0;
}

.whitelabel-features .feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.whitelabel-features svg {
    width: 20px;
    height: 20px;
    color: var(--color-success);
    flex-shrink: 0;
}

/* Mockup */
.whitelabel-visual {
    display: flex;
    justify-content: center;
}

.mockup {
    width: 100%;
    max-width: 450px;
    background: var(--color-bg-dark);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.mockup-header {
    display: flex;
    gap: 6px;
    padding: 12px 16px;
    background: #252542;
}

.mockup-header .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ff5f57;
}

.mockup-header .dot:nth-child(2) {
    background: #febc2e;
}

.mockup-header .dot:nth-child(3) {
    background: #28c840;
}

.mockup-content {
    display: grid;
    grid-template-columns: 80px 1fr;
    min-height: 280px;
}

.mockup-sidebar {
    background: #2a2a45;
    padding: 16px 12px;
}

.mockup-main {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mockup-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    height: 60px;
}

.mockup-card.small {
    height: 40px;
    width: 60%;
}

/* About Section */
.about {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: #fff;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about h2 {
    color: #fff;
    margin-bottom: 1.5rem;
}

.about .lead {
    color: rgba(255, 255, 255, 0.9);
}

.about p {
    color: rgba(255, 255, 255, 0.8);
}

.about-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
}

.stat-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-item svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 4px;
}

.contact-item h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-item a,
.contact-item address {
    color: var(--color-text-light);
}

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

/* Ansprechpartner Highlight */
.contact-person {
    background: var(--color-bg);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
}

.contact-person strong {
    display: block;
    font-size: 1.125rem;
    color: var(--color-primary-dark);
}

.contact-person span {
    font-size: 0.9375rem;
    color: var(--color-text-light);
}

.contact-cta {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.contact-cta p:first-child {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: 1.5rem;
}

.contact-note {
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background: var(--color-bg);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-light);
    opacity: 0.6;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-privacy {
    margin-top: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    flex-shrink: 0;
    cursor: pointer;
    accent-color: var(--color-primary);
}

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

.btn-block {
    width: 100%;
}

.form-message {
    padding: 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(39, 174, 96, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.form-message.error {
    display: block;
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
    border: 1px solid #e74c3c;
}

/* Contact Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal.active {
    display: flex;
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-container {
    position: relative;
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
}

.modal.active .modal-container {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--color-bg-alt);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.2s;
    z-index: 1;
}

.modal-close:hover {
    background: var(--color-border);
    transform: rotate(90deg);
}

.modal-close svg {
    width: 20px;
    height: 20px;
    color: var(--color-text);
}

.modal-content {
    padding: 2.5rem;
}

.modal-header {
    text-align: center;
    margin-bottom: 2rem;
}

.modal-header h2 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.modal-header p {
    color: var(--color-text-light);
    margin: 0;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Success State */
.modal-success {
    text-align: center;
    padding: 3rem 2.5rem;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-success) 0%, #2ecc71 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    animation: successPop 0.5s ease;
}

.success-icon svg {
    width: 40px;
    height: 40px;
    color: #fff;
}

@keyframes successPop {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.modal-success h2 {
    color: var(--color-success);
    margin-bottom: 1rem;
}

.modal-success p {
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

/* Loading Spinner */
.btn-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

/* Mobile adjustments */
@media (max-width: 540px) {
    .modal-content {
        padding: 2rem 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .modal-header h2 {
        font-size: 1.5rem;
    }
}

/* Footer */
.footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-brand img {
    /* Logo bleibt original, weißer Hintergrund-Rahmen für bessere Sichtbarkeit */
    background: rgba(255, 255, 255, 0.95);
    padding: 12px 16px;
    border-radius: var(--radius-md);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
}

.footer-col h4 {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

/* Mobile Responsive */
@media (max-width: 992px) {
    .whitelabel-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .whitelabel-visual {
        order: -1;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-bg);
        flex-direction: column;
        justify-content: flex-start;
        padding: 2rem;
        gap: 1rem;
        transform: translateX(100%);
        transition: transform var(--transition);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-menu a {
        font-size: 1.25rem;
        padding: 1rem;
        display: block;
        text-align: center;
    }

    .hero {
        min-height: auto;
        padding: 120px 0 60px;
    }

    .hero-bg {
        display: none;
    }

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

    .whitelabel-features {
        grid-template-columns: 1fr;
    }

    .about-stats {
        gap: 2rem;
    }

    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

    .btn-lg {
        width: 100%;
    }

    .contact-cta {
        padding: 2rem;
    }
}

/* Print Styles */
@media print {
    .header,
    .hero-bg,
    .nav-toggle,
    .btn {
        display: none;
    }

    body {
        font-size: 12pt;
        color: #000;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    .hero,
    .services,
    .whitelabel,
    .about,
    .contact {
        padding: 20px 0;
    }
}

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

    html {
        scroll-behavior: auto;
    }
}

/* Focus States for Accessibility */
a:focus,
button:focus,
.btn:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: #fff;
    padding: 8px 16px;
    z-index: 10000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}