/* ========================================
   CSS Variables & Reset
   ======================================== */

:root {
    /* Colors */
    --color-primary-orange: #FF4500;
    --color-primary-blue: #0066CC;
    --color-dark: #1a1a1a;
    --color-gray-dark: #333333;
    --color-gray-medium: #666666;
    --color-gray-light: #C0C0C0;
    --color-white: #FFFFFF;
    --color-accent-gold: #FFD700;
    --color-green: #28a745;

    /* Background colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-dark: #1a1a1a;
    --bg-overlay: rgba(26, 26, 26, 0.7);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.25);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Max widths */
    --container-max-width: 1400px;
}

/* ========================================
   Global Reset
   ======================================== */

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--color-gray-dark);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

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

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ========================================
   Utility Classes
   ======================================== */

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary-orange);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 10000;
}

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

/* ========================================
   Header & Navigation
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-md);
    transition: background var(--transition-normal);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.nav__brand {
    flex: 1;
}

.logo {
    display: flex;
    flex-direction: column;
    font-weight: 800;
    line-height: 1.2;
}

.logo__anton {
    color: var(--color-primary-orange);
    font-size: 1.5rem;
    letter-spacing: 1px;
}

.logo__sommeregger {
    color: var(--color-white);
    font-size: 1.5rem;
    letter-spacing: 1px;
}

.logo__subtitle {
    color: var(--color-gray-light);
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 2px;
    margin-top: -4px;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.hamburger {
    width: 25px;
    height: 3px;
    background: var(--color-white);
    transition: all var(--transition-fast);
    border-radius: 2px;
}

.nav__menu {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav__link {
    color: var(--color-white);
    font-weight: 500;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav__link:hover {
    color: var(--color-primary-orange);
    background: rgba(255, 69, 0, 0.1);
}

/* Language Switcher */
.nav__language {
    margin-left: var(--spacing-md);
}

.language-switcher {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-fast);
    text-decoration: none;
    line-height: 1;
}

.language-switcher:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--color-primary-orange);
    transform: translateY(-1px);
}

.language-switcher__text {
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    line-height: 1;
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-dark) 0%, #2d2d2d 100%);
    background-image: url('../images/hero/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--color-white);
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(192, 192, 192, 0.03) 0px,
        rgba(192, 192, 192, 0.03) 2px,
        transparent 2px,
        transparent 8px
    );
    pointer-events: none;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-overlay);
    z-index: 1;
}

.hero__content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: var(--spacing-2xl) var(--spacing-lg);
    animation: fadeInUp 1s ease;
}

.hero__title {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.hero__title-anton {
    color: var(--color-primary-orange);
    font-size: var(--font-size-4xl);
    font-weight: 800;
    letter-spacing: 2px;
}

.hero__title-sommeregger {
    color: var(--color-white);
    font-size: var(--font-size-4xl);
    font-weight: 800;
    letter-spacing: 2px;
}

.hero__title-subtitle {
    color: var(--color-gray-light);
    font-size: var(--font-size-lg);
    font-weight: 400;
    letter-spacing: 4px;
}

.hero__tagline {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.hero__tagline-de {
    font-size: var(--font-size-lg);
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-xl);
    font-style: italic;
}

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

.hero__scroll {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator {
    display: block;
    width: 30px;
    height: 50px;
    border: 2px solid var(--color-white);
    border-radius: var(--radius-xl);
    position: relative;
    animation: scrollBounce 2s infinite;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 10px;
    background: var(--color-primary-orange);
    border-radius: 3px;
    animation: scrollDot 2s infinite;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    font-weight: 600;
    font-size: var(--font-size-base);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.btn--primary {
    background: var(--color-primary-orange);
    color: var(--color-white);
    border-color: var(--color-primary-orange);
}

.btn--primary:hover {
    background: transparent;
    color: var(--color-primary-orange);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn--secondary {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn--secondary:hover {
    background: var(--color-white);
    color: var(--color-dark);
    transform: translateY(-2px);
}

.btn--full {
    width: 100%;
}

/* ========================================
   Section Styles
   ======================================== */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary-orange), var(--color-primary-blue));
    border-radius: 2px;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-medium);
}

/* ========================================
   Services Section
   ======================================== */

.services {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.service-card__image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--bg-dark);
}

.service-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.service-card:hover .service-card__image {
    transform: scale(1.1);
}

.service-card__content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.service-card__title {
    margin-bottom: var(--spacing-md);
}

.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--color-white);
}

.badge--orange {
    background: var(--color-primary-orange);
}

.badge--blue {
    background: var(--color-primary-blue);
}

.badge--silver {
    background: var(--color-gray-medium);
}

.badge--green {
    background: var(--color-green);
}

.service-card__text {
    margin-bottom: var(--spacing-md);
}

.service-card__description {
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-gray-dark);
    margin-bottom: var(--spacing-md);
}

.service-card__description--en {
    font-size: var(--font-size-sm);
    color: var(--color-gray-medium);
}

.service-card__specs {
    background: var(--bg-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    margin: var(--spacing-sm) 0;
}

.service-card__features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-top: auto;
}

.service-card__features li {
    font-size: var(--font-size-sm);
    color: var(--color-gray-medium);
    padding-left: var(--spacing-md);
    position: relative;
}

.service-card__features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary-orange);
    font-weight: bold;
}

/* ========================================
   Specifications Section
   ======================================== */

.specs {
    padding: var(--spacing-3xl) 0;
    background: var(--color-dark);
    color: var(--color-white);
}

.specs .section-title {
    color: var(--color-white);
}

.specs .section-subtitle {
    color: var(--color-gray-light);
}

.specs__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.spec-card {
    text-align: center;
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-normal);
}

.spec-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-primary-orange);
    transform: translateY(-4px);
}

.spec-card__icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.spec-card__value {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-primary-orange);
    margin-bottom: var(--spacing-xs);
}

.spec-card__label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.specs__features {
    max-width: 900px;
    margin: 0 auto;
}

.specs__features-title {
    text-align: center;
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
    color: var(--color-white);
}

.specs__features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.1);
}

.feature-item__icon {
    color: var(--color-primary-orange);
    font-size: var(--font-size-xl);
    font-weight: bold;
}

/* ========================================
   Contact Section
   ======================================== */

.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

/* Contact Content */
.contact__content {
    max-width: 100%;
    text-align: center;
}

.contact__company {
    font-size: var(--font-size-2xl);
    color: var(--color-dark);
    margin-bottom: var(--spacing-xl);
    font-weight: 700;
}

.contact__details {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg) var(--spacing-2xl);
    max-width: 1200px;
    margin: 0 auto;
}

.contact__item {
    font-size: var(--font-size-base);
    color: var(--color-gray-dark);
}

.contact__item strong {
    color: var(--color-dark);
    margin-right: var(--spacing-xs);
}

.contact__item a {
    color: var(--color-primary-blue);
    transition: color var(--transition-fast);
    text-decoration: none;
}

.contact__item a:hover {
    color: var(--color-primary-orange);
    text-decoration: underline;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--color-dark);
    color: var(--color-gray-light);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    position: relative;
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-xl);
}

.footer__brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer__tagline {
    color: var(--color-gray-light);
    font-size: var(--font-size-sm);
}

.footer__links h4,
.footer__contact h4 {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.footer__links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__links a {
    color: var(--color-gray-light);
    transition: color var(--transition-fast);
}

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

.footer__contact p {
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.footer__contact a {
    color: var(--color-gray-light);
}

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

.footer__bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: var(--font-size-sm);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: var(--color-primary-orange);
    color: var(--color-white);
    border-radius: 50%;
    font-size: var(--font-size-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--color-primary-blue);
    transform: translateY(-4px);
}

/* ========================================
   Animations
   ======================================== */

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

@keyframes scrollBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(10px);
    }
}

@keyframes scrollDot {
    0%, 100% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    50% {
        opacity: 0.3;
        transform: translateX(-50%) translateY(15px);
    }
}

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Accessibility & Motion
   ======================================== */

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

/* Focus styles */
*:focus-visible {
    outline: 3px solid var(--color-primary-orange);
    outline-offset: 2px;
}