/* ============================================
   EINFACH. Finanzberatung - Premium Dark Design
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Colors */
    --color-bg: #0a0a0a;
    --color-bg-secondary: #111111;
    --color-bg-card: #141414;
    --color-bg-elevated: #1a1a1a;
    
    --color-text: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-text-muted: #666666;
    
    --color-border: #252525;
    --color-border-light: #333333;
    
    --color-accent: #ffffff;
    --color-accent-glow: rgba(255, 255, 255, 0.15);
    --color-success: #22c55e;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(255, 255, 255, 0.1);
    
    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: var(--font-size-6xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
    color: var(--color-text-secondary);
}

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

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

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: var(--transition-base);
}

.header.scrolled {
    background: rgba(10, 10, 10, 0.95);
    box-shadow: var(--shadow-md);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    letter-spacing: -0.03em;
}

.logo:hover {
    opacity: 0.8;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav__list {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.nav__link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-sm) 0;
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-base);
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-text);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-md);
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    -webkit-tap-highlight-color: transparent;
}

.nav-toggle:active {
    background: rgba(255, 255, 255, 0.1);
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-base);
    border-radius: 1px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: inherit;
    font-size: var(--font-size-sm);
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
}

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

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.25);
}

.btn--secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border-light);
}

.btn--secondary:hover {
    border-color: var(--color-text);
    background: rgba(255, 255, 255, 0.05);
}

.btn--lg {
    padding: var(--space-lg) var(--space-2xl);
    font-size: var(--font-size-base);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(var(--header-height) + var(--space-4xl)) var(--space-xl) var(--space-4xl);
    position: relative;
    overflow: hidden;
}

/* Hero Background Effects */
.hero__bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero__bg::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero__bg::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(to top, var(--color-bg), transparent);
    pointer-events: none;
}

.hero__content {
    max-width: 900px;
    position: relative;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xl);
}

.hero__badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero__title {
    font-size: clamp(3rem, 8vw, var(--font-size-6xl));
    font-weight: 700;
    letter-spacing: -0.04em;
    margin-bottom: var(--space-lg);
    background: linear-gradient(180deg, #ffffff 0%, #a0a0a0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: clamp(1.125rem, 2.5vw, var(--font-size-xl));
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
}

.hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

/* ============================================
   SECTION STYLES
   ============================================ */
.section {
    padding: var(--space-5xl) var(--space-xl);
}

.section--alt {
    background: var(--color-bg-secondary);
}

.section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-4xl);
}

.section__eyebrow {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.section__title {
    margin-bottom: var(--space-md);
}

.section__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

/* ============================================
   FEATURES / SERVICES GRID
   ============================================ */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    padding: var(--space-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: var(--transition-slow);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-lg);
}

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

.feature-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-lg);
}

.feature-card__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-sm);
}

.feature-card__description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

.feature-card__list {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    list-style: none;
}

.feature-card__list li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    padding: var(--space-xs) 0;
}

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

/* ============================================
   STATS SECTION
   ============================================ */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
}

.stat {
    text-align: center;
    padding: var(--space-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
}

.stat:hover {
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-glow);
}

.stat__number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.stat__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ============================================
   TEAM SECTION
   ============================================ */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-2xl);
}

.team-card {
    text-align: center;
    padding: var(--space-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: var(--transition-slow);
}

.team-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-lg);
}

.team-card__image {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    margin: 0 auto var(--space-lg);
    overflow: hidden;
    border: 3px solid var(--color-border);
    transition: var(--transition-base);
}

.team-card:hover .team-card__image {
    border-color: var(--color-border-light);
}

.team-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-card__name {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-xs);
}

.team-card__role {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--space-md);
}

.team-card__bio {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ============================================
   TRUST / TESTIMONIAL SECTION
   ============================================ */
.trust-banner {
    padding: var(--space-3xl);
    background: linear-gradient(135deg, var(--color-bg-card), var(--color-bg-elevated));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.trust-banner__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-success);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-lg);
}

.trust-banner__title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-md);
}

.trust-banner__text {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.trust-promises {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.trust-promise {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
}

.trust-promise__dot {
    width: 10px;
    height: 10px;
    background: var(--color-text);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
}

.contact-info__title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-2xl);
}

.contact-item {
    margin-bottom: var(--space-xl);
}

.contact-item__label {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.contact-item__value {
    font-size: var(--font-size-lg);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-group label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-border-light);
    background: var(--color-bg-elevated);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    text-align: center;
    padding: var(--space-5xl) var(--space-xl);
    background: linear-gradient(180deg, var(--color-bg-secondary), var(--color-bg));
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.cta-section__title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-md);
}

.cta-section__text {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--space-4xl) var(--space-xl) var(--space-2xl);
    border-top: 1px solid var(--color-border);
}

.footer__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
}

.footer__logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.footer__links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
    justify-content: center;
}

.footer__link {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

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

.footer__copyright {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-align: center;
}

/* ============================================
   COOKIE BANNER
   ============================================ */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--color-border);
    padding: var(--space-xl);
    z-index: 2000;
    transform: translateY(100%);
    transition: var(--transition-slow);
}

.cookie-banner.active {
    transform: translateY(0);
}

.cookie-banner__inner {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.cookie-banner__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-sm);
}

.cookie-banner__text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.cookie-banner__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

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

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

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }

/* Scroll animations */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .trust-banner {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    /* Mobile Navigation */
    .nav {
        display: flex;
        align-items: center;
        gap: var(--space-sm);
    }
    
    .nav__list {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-bg);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: var(--space-xl);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
        z-index: 999;
    }
    
    .nav__list.active {
        opacity: 1;
        visibility: visible;
    }
    
    .nav__link {
        font-size: var(--font-size-xl);
        padding: var(--space-md);
    }
    
    .nav-toggle {
        display: flex;
        order: 2;
    }
    
    .theme-toggle {
        order: 1;
    }
    
    .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);
    }
    
    /* Typography */
    h1 { font-size: var(--font-size-4xl); }
    h2 { font-size: var(--font-size-3xl); }
    
    .hero__subtitle {
        font-size: var(--font-size-base);
    }
    
    .hero__cta {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }
    
    .hero__cta .btn {
        width: 100%;
        max-width: 300px;
    }
    
    /* Sections */
    .section {
        padding: var(--space-4xl) var(--space-md);
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    /* Buttons - Better touch targets */
    .btn {
        min-height: 48px;
        padding: var(--space-md) var(--space-xl);
    }
    
    .btn--lg {
        padding: var(--space-lg) var(--space-2xl);
        font-size: var(--font-size-base);
    }
    
    /* Form inputs - Better touch targets */
    .form-group input,
    .form-group textarea,
    .form-group select {
        min-height: 48px;
        font-size: 16px; /* Prevents iOS zoom on focus */
    }
    
    /* Contact grid */
    .contact-grid {
        gap: var(--space-2xl);
    }
}

/* iPhone SE and small phones */
@media (max-width: 375px) {
    :root {
        --font-size-6xl: 2.5rem;
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
    }
    
    .container {
        padding: 0 var(--space-md);
    }
    
    .section__header {
        margin-bottom: var(--space-2xl);
    }
    
    .feature-card,
    .stat,
    .team-card {
        padding: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .feature-card {
        padding: var(--space-xl);
    }
    
    .trust-banner {
        padding: var(--space-xl);
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ============================================
   THEME TOGGLE
   ============================================ */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    color: var(--color-text-secondary);
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.theme-toggle:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.05);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

/* ============================================
   LIGHT MODE
   ============================================ */
[data-theme="light"] {
    --color-bg: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-card: #ffffff;
    --color-bg-elevated: #f1f3f5;
    
    --color-text: #111111;
    --color-text-secondary: #555555;
    --color-text-muted: #888888;
    
    --color-border: #e0e0e0;
    --color-border-light: #cccccc;
    
    --color-accent: #111111;
    --color-accent-glow: rgba(0, 0, 0, 0.1);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 40px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

[data-theme="light"] .theme-toggle:hover {
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .header {
    background: rgba(255, 255, 255, 0.85);
}

[data-theme="light"] .header.scrolled {
    background: rgba(255, 255, 255, 0.95);
}

[data-theme="light"] .hero__title {
    background: linear-gradient(180deg, #111111 0%, #555555 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .hero__bg::before {
    background: radial-gradient(circle, rgba(0, 0, 0, 0.03) 0%, transparent 70%);
}

[data-theme="light"] .btn--primary {
    background: var(--color-text);
    color: #ffffff;
}

[data-theme="light"] .btn--primary:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .cookie-banner {
    background: rgba(255, 255, 255, 0.95);
}

[data-theme="light"] .nav__list {
    background: var(--color-bg);
}

[data-theme="light"] .nav-toggle span {
    background: var(--color-text);
}

[data-theme="light"] .nav-toggle:active {
    background: rgba(0, 0, 0, 0.05);
}

/* Light mode mobile fixes */
@media (max-width: 768px) {
    [data-theme="light"] .nav__list {
        border-top: 1px solid var(--color-border);
    }
}