/* ===========================================
           CSS VARIABLES
           =========================================== */
:root {
    /* Colors */
    --color-primary: #4d6a7a;
    --color-primary-dark: #1a3745;
    --color-bg: #ffffff;
    --color-bg-secondary: #e8eaed;
    --color-text: #2d3748;
    --color-text-secondary: #4a5568;
    --color-border: #e5e7eb;
    --color-accent: #d4af37;
    --color-accent-dark: #b8941f;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.4s ease;
    --transition-smooth: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);

    /* Shadows */
    --shadow-xs: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.3);
    --shadow-contact-card: 0 1.25rem 3.75rem rgba(0, 0, 0, 0.12),
        0 0.625rem 1.875rem rgba(0, 0, 0, 0.08);
    --shadow-contact-card-hover: 0 2rem 5rem rgba(0, 0, 0, 0.15),
        0 1rem 2.5rem rgba(0, 0, 0, 0.1);
    --shadow-contact-item: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.1);
    --shadow-contact-icon: 0 0.375rem 1rem rgba(0, 0, 0, 0.15);

    /* Border Radius */
    --radius-xs: 0.125rem;
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 50%;
    --radius-round: 50px;

    /* Spacing - Contact Card */
    --contact-card-padding: 3rem;
    --contact-card-radius: 1.5rem;
    --contact-item-padding: 1.5rem;
    --contact-item-radius: 1rem;
    --contact-item-gap: 1.5rem;
    --contact-icon-size: 3rem;
}

/* Hidden Elements - Inputs & Controls */
.sr-only {
    position: fixed;
    top: -9999px;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
    width: 1px;
    height: 1px;
}

/* ===========================================
           BASE STYLES & RESET
           =========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    /* Fixed navbar offset for anchor scrolling */
    scroll-padding-top: 100px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    /* Nur dekorative Animationen deaktivieren */
    .scroll-arrow,
    .hero-image img:hover,
    .portfolio-item:hover {
        animation: none !important;
        transition: none !important;
    }

    /* Funktionale Transitions behalten (z.B. Menü öffnen) */
    .mobile-nav {
        transition: opacity 0.1s ease; /* Kurz, aber nicht instant */
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    transition: background var(--transition-smooth),
        color var(--transition-smooth);
    line-height: 1.6;
}

/* Skip to Content Link (Accessibility) */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-accent);
    color: white;
    text-decoration: none;
    z-index: 9999;
    font-weight: 600;
}

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

/* Improved Focus Styles */
*:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

/* ===========================================
           NAVIGATION
           =========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: var(--color-bg);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--color-border);
}

.navbar-logo {
    opacity: 0;
    transform: translateY(-5px);
    transition: all var(--transition-base);
}

.navbar.scrolled .navbar-logo {
    opacity: 1;
    transform: translateY(0);
}

.navbar-logo img {
    height: 60px;
    width: auto;
}

.burger-menu {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 0.5rem;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    /* Prevent scroll when label is clicked */
    position: relative;
}

.burger-menu:hover {
    border-color: var(--color-accent);
}

.burger-line {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-base);
}

#burger-toggle:checked ~ .navbar .burger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

#burger-toggle:checked ~ .navbar .burger-line:nth-child(2) {
    opacity: 0;
}

#burger-toggle:checked ~ .navbar .burger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Navigation Menu */
.mobile-nav {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    z-index: 99;
    opacity: 0;
    transform: translateY(-20px);
    transition: all var(--transition-base);
    pointer-events: none;
}

#burger-toggle:checked ~ .mobile-nav {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.mobile-nav-list {
    list-style: none;
    padding: 1rem;
}

.mobile-nav-item {
    margin: 0;
}

.mobile-nav-link {
    display: block;
    padding: 1rem;
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
    background: var(--color-bg-secondary);
    color: var(--color-accent);
    padding-left: 1.5rem;
}

/* Navigation Dots (Desktop only) */
.nav-dots {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 100;
}

.nav-dot {
    width: 14px;
    height: 14px;
    border-radius: var(--radius-full);
    background: var(--color-bg);
    border: 2px solid var(--color-text);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    box-shadow: var(--shadow-xs);
}

.nav-dot:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: scale(1.3);
}

.nav-dot.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: scale(1.2);
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.2);
}

.nav-dot::before {
    content: attr(data-label);
    position: absolute;
    right: 25px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-bg);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    opacity: 0;
    transition: opacity var(--transition-base);
    color: var(--color-text);
    white-space: nowrap;
    box-shadow: var(--shadow-md);
    pointer-events: none;
    border: 1px solid var(--color-border);
}

.nav-dot:hover::before {
    opacity: 1;
}


/* ===========================================
           SCROLL INDICATOR
           =========================================== */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.7;
    transition: opacity var(--transition-base);
    text-decoration: none;
    z-index: 10;
}

.scroll-indicator:hover {
    opacity: 1;
}

.scroll-text {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: white; /* White by default for dark backgrounds */
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-left: 2px solid white; /* White by default for dark backgrounds */
    border-bottom: 2px solid white;
    transform: rotate(-45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0) rotate(-45deg);
    }
    40% {
        transform: translateY(-10px) rotate(-45deg);
    }
    60% {
        transform: translateY(-5px) rotate(-45deg);
    }
}

/* ===========================================
           SECTIONS
           =========================================== */
.section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    position: relative;
    overflow: hidden;
}

.section-hero {
    background: linear-gradient(
        135deg,
        var(--color-primary) 0%,
        var(--color-primary-dark) 100%
    );
    color: white;
}

/* Brightened background for all hero sections */
.section-hero .bg-image-inner {
    background: linear-gradient(
        135deg,
        #6b8494 0%,
        /* Original primary + 20% brightness */ #2d4a57 100%
            /* Original primary-dark + 20% brightness */
    );
}

/* Mobile: Slightly lighter */
@media (max-width: 768px) {
    .section-hero .bg-image-inner {
        background: linear-gradient(
            135deg,
            #789daf 0%,
            /* +30% brightness on mobile */ #3a5766 100%
        );
    }
}

.section-content {
    max-width: 1200px;
    width: 100%;
    position: relative;
    z-index: 2;
}

/* Background Image Layer */
.bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.bg-image::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.15) 0%,
        transparent 100%
    );
    z-index: 1;
}

/* Lighter overlay for hero sections */
.section-hero .bg-image::before {
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.08) 0%,
        transparent 100%
    );
}

.bg-image-inner {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform var(--transition-base);
}

.section:hover .bg-image-inner {
    transform: scale(1.03);
}

/* ===========================================
           HERO SECTION
           =========================================== */
.hero-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-logo {
    width: 100%;
    max-width: 650px; /* Maximum size on large screens */
}

.hero-logo img {
    width: 100%;
    height: auto;
    aspect-ratio: 2 / 1; /* Maintains 400x200 ratio */
    object-fit: contain; /* Prevents distortion */
    margin-bottom: 2rem;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    width: 100%;
    max-width: 400px;
    height: auto;
    aspect-ratio: 1 / 1; /* Square image */
    object-fit: cover; /* Fills space, may crop */
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

/* ===========================================
           IMAGE STYLES - NO INLINE STYLES NEEDED
           =========================================== */

/* Navbar Logo */
.navbar-logo img {
    width: 120px;
    height: auto;
    aspect-ratio: 2 / 1; /* Maintains 120x60 ratio */
    object-fit: contain;
}

/* Portfolio Images */
.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

/* ===========================================
           TYPOGRAPHY
           =========================================== */
h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
    color: var(--color-text);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

p {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

/* Typography helpers — place near body, p, h1..h6 rules */
.text-small {
    font-size: 0.875rem; /* ≈14px bei 16px Basis, Lesbarkeit beachten */
    line-height: 1.4; /* ausreichender Zeilenabstand */
    color: var(
        --color-text-secondary
    ); /* dezenter Text, nutzt bestehende Variable */
}

/* ===========================================
           BUTTONS
           =========================================== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(
        135deg,
        var(--color-accent),
        var(--color-accent-dark)
    );
    color: white;
    text-decoration: none;
    border-radius: var(--radius-round);
    font-weight: 600;
    transition: all var(--transition-base);
    margin-top: 1rem;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ===========================================
           SECTION TITLE
           =========================================== */
.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title p {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
}

/* ===========================================
           CARDS
           =========================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

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

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

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(
        135deg,
        var(--color-accent),
        var(--color-accent-dark)
    );
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    flex-shrink: 0; /* Prevents shrinking in flex containers */
}

/* SVG icon styling within card-icon */
.card-icon svg {
    width: 32px;
    height: 32px;
    color: white;
    fill: currentColor;
}

.card ul {
    margin-left: 1.25rem;
    margin-top: 1rem;
}

.card li {
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
}

/* Modifier: make a card span the full grid width (use on the 4th service card) */
.card-inner {
    max-width: 900px; /* Constrain wide content similar to contact-card */
    margin: 0 auto;
}

@media (min-width: 769px) {
    .card--full {
        grid-column: 1 / -1; /* Span all columns */
    }
}

/* ===========================================
           PORTFOLIO
           =========================================== */
.portfolio-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.portfolio-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

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

.portfolio-item:nth-child(even) {
    direction: rtl;
}
.portfolio-item:nth-child(even) > * {
    direction: ltr;
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10; /* Consistent aspect ratio for all portfolio images */
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Fills container, may crop edges */
    transition: transform var(--transition-base);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.portfolio-content h3 {
    color: var(--color-accent);
}

/* ===========================================
           IMAGE MODAL
           =========================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    cursor: pointer;
}

.modal-content {
    margin: auto;
    display: block;
    width: 90%;
    max-width: 1200px;
    max-height: 90%;
    margin-top: 5vh;
    animation: zoomIn 0.3s;
}

@keyframes zoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* ===========================================
           CONTACT
           =========================================== */
.contact-card {
    max-width: 600px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(1rem);
    padding: var(--contact-card-padding);
    border-radius: var(--contact-card-radius);
    box-shadow: var(--shadow-contact-card);
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0.25rem;
    background: linear-gradient(
        90deg,
        var(--color-accent),
        var(--color-accent-dark)
    );
}

.contact-card:hover {
    transform: translateY(-0.5rem);
    box-shadow: var(--shadow-contact-card-hover);
}

.contact-card h2 {
    text-align: center;
    color: var(--color-text);
    margin-bottom: 2.5rem;
    font-size: 2rem;
    font-weight: 700;
    position: relative;
}

.contact-card h2::after {
    content: "";
    position: absolute;
    bottom: -0.75rem;
    left: 50%;
    transform: translateX(-50%);
    width: 4rem;
    height: 0.25rem;
    background: linear-gradient(
        90deg,
        var(--color-accent),
        var(--color-accent-dark)
    );
    border-radius: var(--radius-xs);
}

.contact-card > p {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Contact Items as full clickable links */
.contact-item {
    display: grid;
    grid-template-columns: var(--contact-icon-size) 1fr;
    gap: var(--contact-item-gap);
    align-items: center;
    padding: var(--contact-item-padding);
    background: rgba(255, 255, 255, 0.6);
    border-radius: var(--contact-item-radius);
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: all var(--transition-base);
    text-decoration: none;
    color: inherit;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.85);
    transform: translateX(0.5rem);
    box-shadow: var(--shadow-contact-item);
}

.contact-icon {
    width: var(--contact-icon-size);
    height: var(--contact-icon-size);
    background: linear-gradient(
        135deg,
        var(--color-accent),
        var(--color-accent-dark)
    );
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-contact-icon);
    flex-shrink: 0;
}

/* SVG icon styling within contact-icon */
.contact-icon svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.contact-label {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.95rem;
}

.contact-value {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

/* ===========================================
           FOOTER
           =========================================== */
footer {
    padding: 2rem;
    background: var(--color-bg);
    text-align: center;
    border-top: 1px solid var(--color-border);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
}

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

/* ===========================================
           LEGAL PAGES
           =========================================== */
.legal-page {
    min-height: 100vh;
    padding: 8rem 2rem 4rem;
    background: var(--color-bg);
    display: none;
}

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

.legal-content h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.legal-content h2 {
    font-size: 1.75rem;
    margin: 2rem 0 1rem;
}

.legal-content h3 {
    font-size: 1.25rem;
    margin: 1.5rem 0 0.75rem;
}

.legal-content p,
.legal-content li {
    line-height: 1.8;
    margin-bottom: 1rem;
}

.legal-content ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-accent);
    text-decoration: none;
    margin-bottom: 2rem;
    font-weight: 600;
}

.back-link:hover {
    text-decoration: underline;
}

/* ===========================================
           RESPONSIVE DESIGN - MOBILE
           =========================================== */
@media (max-width: 768px) {
    /* Navigation */
    .navbar {
        padding: 1rem 1.5rem;
    }

    .burger-menu {
        display: flex;
    }

    .mobile-nav {
        display: block;
    }

    .nav-dots {
        display: none;
        /* If visible, move closer to edge */
        right: 0.5rem;
    }

    /* Sections - Reduced Padding */
    .section {
        padding: 2rem 1rem;
    }

    /* Hero Layout */
    .hero-layout {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        order: -1;
        margin-bottom: 2rem;
    }

    /* Services & Portfolio */
    .services-grid,
    .portfolio-item {
        grid-template-columns: 1fr;
    }

    .portfolio-item:nth-child(even) {
        direction: ltr;
    }

    /* Cards - Reduced Padding */
    .card {
        padding: 1.5rem;
    }

    /* Theme Selector */
    .theme-selector {
        right: 1rem;
        left: 1rem;
        width: auto;
    }

    /* Contact Card - Reduced Padding */
    .contact-card {
        padding: 2rem 1.5rem;
    }

    .contact-item {
        padding: 1rem;
        gap: 1rem;
        grid-template-columns: 2.5rem 1fr;
    }

    .contact-icon {
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1.25rem;
    }

    /* Hide Elements */
    .scroll-indicator {
        display: none;
    }
}