/* Künzel Glas & Gebäudeservice - Warm Craft Design System */

:root {
    /* Colors from Brand System */
    --color-primary: #1F4E45;       /* Tannengrün */
    --color-primary-hover: #12332D;
    --color-accent: #C98A3C;        /* Gold/Bernstein */
    --color-accent-hover: #A36F2E;
    
    /* Neutrals - Technical Slate & Cream Palette */
    --color-bg: #FAFAF8;            /* Off-white / Cream */
    --color-surface: #ffffff;
    --color-surface-alt: #F2F1ED;
    --color-text-main: #24221F;     /* Dunkles Anthrazit */
    --color-text-muted: #736F64;
    --color-border: #E2E0D9;
    
    /* Typography */
    --font-sans: 'Outfit', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    
    /* Spacing */
    --spacing-container: 1180px;
    --spacing-section: 5rem;
    
    /* Settings */
    --radius: 8px;
    --radius-small: 4px;
    --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-motion: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --shadow: 0 4px 20px rgba(36, 34, 31, 0.05);
    --shadow-hover: 0 10px 30px rgba(36, 34, 31, 0.08);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text-main);
    background-color: var(--color-bg);
    line-height: 1.6;
    font-size: 1.0625rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* Utility classes */
.shell {
    width: min(calc(100% - 2rem), var(--spacing-container));
    margin: 0 auto;
}

.skip-link {
    position: absolute;
    left: 1rem;
    top: -4rem;
    z-index: 100;
    background: var(--color-primary);
    color: #fff;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
}

.skip-link:focus {
    top: 1rem;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Typography */
h1, h2, h3, h4 {
    color: var(--color-text-main);
    font-weight: 700;
    line-height: 1.15;
}

h1 {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 0.50rem;
    color: var(--color-primary);
}

p {
    margin-bottom: 1rem;
}

p:last-child {
    margin-bottom: 0;
}

.eyebrow {
    color: var(--color-primary);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.text-muted {
    color: var(--color-text-muted);
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-surface-alt);
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: var(--radius-small);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--color-border);
}

/* Buttons */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.75rem;
    font-size: 1rem;
    font-weight: 700;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    gap: 0.5rem;
}

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

.button-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(31, 78, 69, 0.25);
}

.button-primary:active {
    transform: translateY(0);
}

.button-accent {
    background-color: var(--color-accent);
    color: var(--color-text-main);
}

.button-accent:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(201, 138, 60, 0.25);
}

.button-accent:active {
    transform: translateY(0);
}

.button-secondary {
    background-color: transparent;
    border-color: var(--color-border);
    color: var(--color-text-main);
}

.button-secondary:hover {
    background-color: var(--color-surface-alt);
    border-color: var(--color-text-muted);
}

/* Header */
.site-header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.topline {
    background-color: var(--color-primary);
    color: #fff;
    font-size: 0.85rem;
    padding: 0.5rem 0;
}

.topline-inner {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.nav-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-icon {
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 1.5rem;
    box-shadow: 0 4px 8px rgba(31, 78, 69, 0.15);
}

.brand span {
    display: flex;
    flex-direction: column;
}

.brand strong {
    font-size: 1.2rem;
    line-height: 1.1;
    color: var(--color-primary);
    font-weight: 800;
}

.brand small {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.site-nav a {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-text-main);
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

.site-nav a:hover, .site-nav a[aria-current="page"] {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.site-nav a.nav-cta {
    background-color: var(--color-accent);
    color: var(--color-text-main);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-small);
    border-bottom: none;
    font-weight: 700;
}

.site-nav a.nav-cta:hover {
    background-color: var(--color-accent-hover);
    color: var(--color-text-main);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-text-main);
    transition: var(--transition-fast);
}

/* Footer */
.site-footer {
    background-color: var(--color-primary);
    color: #fff;
    padding: 4rem 0 2rem;
    margin-top: 5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    color: #fff;
    font-size: 1.15rem;
    margin-bottom: 1.25rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.75rem;
}

.footer-col a {
    color: #e2f0ed;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.9rem;
    color: #cbd5e1;
}

.footer-bottom a {
    color: #cbd5e1;
}

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

.medienbro-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #cbd5e1;
}

.medienbro-badge a {
    font-weight: 700;
    color: #fff;
    text-decoration: underline;
}

/* Section Common */
.section {
    padding: var(--spacing-section) 0;
}

.section-alt {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.section-header {
    max-width: 700px;
    margin-bottom: 3rem;
}

.section-header h2 {
    margin-top: 0.5rem;
}

/* Hero Section */
.hero {
    position: relative;
    background-color: var(--color-primary);
    color: #fff;
    padding: 6rem 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(135deg, rgba(31, 78, 69, 0.95) 0%, rgba(18, 51, 45, 0.98) 100%),
                     url("assets/cover_hero.png");
    background-size: cover;
    background-position: center;
}

.hero-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
}

.hero-copy h1 {
    color: #fff;
}

.hero-text {
    font-size: 1.2rem;
    color: #e2f0ed;
    margin-bottom: 2rem;
    max-width: 600px;
}

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

.trust-badge-hero {
    background-color: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius);
    padding: 1.5rem;
    backdrop-filter: blur(8px);
}

.trust-badge-hero h3, .trust-badge-hero .trust-title {
    color: var(--color-accent);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stars {
    color: #f59e0b;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.trust-badge-hero p {
    font-size: 0.95rem;
    color: #e2f0ed;
    margin: 0;
}

/* Grid & Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
}

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

.card-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-surface-alt);
    color: var(--color-primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.card h3 {
    margin-bottom: 0.75rem;
}

.card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.card-link {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.card-link:hover {
    color: var(--color-accent);
}

/* Features two column */
.feature-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.feature-image img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
}

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

.testimonial-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.testimonial-text {
    font-style: italic;
    color: var(--color-text-main);
    margin-bottom: 1.5rem;
}

.testimonial-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--color-border);
    padding-top: 1rem;
    font-size: 0.9rem;
}

.testimonial-author {
    font-weight: 700;
    color: var(--color-primary);
}

.testimonial-source {
    color: var(--color-text-muted);
}

/* Form Styles */
.inquiry-container {
    max-width: 650px;
    margin: 0 auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 3rem 2.5rem;
    box-shadow: var(--shadow-hover);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-main);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: inherit;
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background-color: var(--color-bg);
    color: var(--color-text-main);
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: #fff;
    box-shadow: 0 0 0 3px rgba(31, 78, 69, 0.1);
}

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

.checkbox-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    cursor: pointer;
}

.checkbox-label input {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.file-upload-box {
    border: 2px dashed var(--color-border);
    padding: 2rem;
    text-align: center;
    border-radius: var(--radius);
    cursor: pointer;
    background-color: var(--color-bg);
    transition: all var(--transition-fast);
}

.file-upload-box:hover {
    border-color: var(--color-primary);
    background-color: #fff;
}

.file-upload-box svg {
    margin-bottom: 0.5rem;
    color: var(--color-text-muted);
}

.file-upload-text {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.success-message {
    text-align: center;
    padding: 2rem 0;
}

.success-icon {
    width: 64px;
    height: 64px;
    background-color: var(--color-surface-alt);
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    border: 2px solid var(--color-primary);
}

/* Call to Action Bar */
.cta-bar {
    background-color: var(--color-primary);
    color: #fff;
    padding: 4rem 0;
    text-align: center;
}

.cta-bar h2 {
    color: #fff;
    margin-bottom: 1rem;
}

.cta-bar p {
    color: #e2f0ed;
    font-size: 1.15rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Responsive Grid Adjustments */
@media (max-width: 768px) {
    :root {
        --spacing-section: 3.5rem;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .site-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-surface);
        padding: 1.5rem;
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-hover);
    }
    
    body.menu-open .site-nav {
        display: flex;
    }
    
    body.menu-open .menu-toggle span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    body.menu-open .menu-toggle span:nth-child(2) {
        opacity: 0;
    }
    
    body.menu-open .menu-toggle span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .feature-split {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .form-row, .checkbox-group {
        grid-template-columns: 1fr;
    }
    
    .inquiry-container {
        padding: 2rem 1.5rem;
    }
}