/* ==========================================================================
   DESIGN-SYSTEM & VARIABLEN (Zimmerei Wanderer)
   ========================================================================== */
:root {
    --color-bg-light: #FDFBF8;
    --color-bg-accent: #FAF4EB;      
    --color-bg-dark: #2B1E15;        
    --color-text-dark: #20150E;      
    --color-text-muted: #5C4A3E;     
    --color-text-light: #FDFBF8;     
    --color-text-light-muted: #D3C4B8; 
    --color-primary: #8E3E0B;        
    --color-primary-hover: #AA4D12;  
    --color-focus: #005FBC;          
    
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --max-width: 1200px;
    --border-radius: 6px;
    --transition-speed: 0.25s;
}

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

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 100%; }
body { font-family: var(--font-family); background-color: var(--color-bg-light); color: var(--color-text-dark); line-height: 1.6; -webkit-font-smoothing: antialiased; display: flex; flex-direction: column; min-height: 100vh; }
*:focus-visible { outline: 3px solid var(--color-focus) !important; outline-offset: 3px !important; }

h1, h2, h3 { color: var(--color-text-dark); font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.25rem); margin-bottom: 1.5rem; position: relative; padding-bottom: 0.5rem; }
h2::after { content: ''; position: absolute; left: 0; bottom: 0; width: 60px; height: 4px; background-color: var(--color-primary); border-radius: 2px; }
h3 { font-size: 1.35rem; margin-bottom: 0.75rem; }
p { margin-bottom: 1.25rem; }

a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; transition: color var(--transition-speed) ease; }
a:hover, a:focus { color: var(--color-primary-hover); }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

.skip-link { position: absolute; top: -100px; left: 1rem; background-color: var(--color-primary); color: var(--color-text-light); padding: 1rem 1.5rem; font-weight: bold; z-index: 9999; border-radius: 0 0 var(--border-radius) var(--border-radius); text-decoration: none; transition: top var(--transition-speed) ease; }
.skip-link:focus-visible { top: 0; }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.85rem 1.75rem; font-size: 1rem; font-weight: 600; text-decoration: none; border-radius: var(--border-radius); border: 2px solid transparent; cursor: pointer; transition: all var(--transition-speed) ease; }
.btn-primary { background-color: var(--color-primary); color: var(--color-text-light); }
.btn-primary:hover, .btn-primary:focus { background-color: var(--color-primary-hover); color: var(--color-text-light); }
.btn-secondary { background-color: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-secondary:hover, .btn-secondary:focus { background-color: var(--color-primary); color: var(--color-text-light); }

/* Header & Nav */
header { background-color: var(--color-bg-light); border-bottom: 1px solid rgba(92, 74, 62, 0.15); position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.03); }
.nav-container { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo-link { display: flex; align-items: center; text-decoration: none; color: var(--color-text-dark); outline-offset: 4px; }
.logo-fallback { display: flex; align-items: center; gap: 0.5rem; font-weight: 700; font-size: 1.35rem; color: var(--color-primary); }
.logo-svg { height: 50px; width: 50px; }
.nav-menu { display: flex; list-style: none; gap: 2rem; }
.nav-menu a { color: var(--color-text-dark); text-decoration: none; font-weight: 500; padding: 0.5rem 0; position: relative; }
.nav-menu a::after { content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background-color: var(--color-primary); transition: width var(--transition-speed) ease; }
.nav-menu a:hover::after, .nav-menu a:focus::after { width: 100%; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; z-index: 1001; }
.hamburger { display: block; width: 24px; height: 3px; background-color: var(--color-text-dark); position: relative; transition: background var(--transition-speed) ease; }
.hamburger::before, .hamburger::after { content: ''; display: block; width: 24px; height: 3px; background-color: var(--color-text-dark); position: absolute; transition: transform var(--transition-speed) ease, top var(--transition-speed) ease; }
.hamburger::before { top: -8px; } .hamburger::after { top: 8px; }

@media (max-width: 900px) { .nav-menu { gap: 1rem; } }
@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-menu { position: fixed; top: 80px; left: 0; right: 0; bottom: 0; background-color: var(--color-bg-light); flex-direction: column; align-items: center; padding-top: 3rem; gap: 2.5rem; transform: translateX(100%); transition: transform 0.3s ease-in-out; border-top: 1px solid rgba(92, 74, 62, 0.1); }
    .nav-menu.open { transform: translateX(0); }
    .nav-menu a { font-size: 1.25rem; }
    .nav-toggle[aria-expanded="true"] .hamburger { background-color: transparent; }
    .nav-toggle[aria-expanded="true"] .hamburger::before { transform: rotate(45deg); top: 0; }
    .nav-toggle[aria-expanded="true"] .hamburger::after { transform: rotate(-45deg); top: 0; }
}

/* Sections & Grids */
section { padding: clamp(3.5rem, 8vw, 6rem) 0; scroll-margin-top: 80px; }
.section-accent { background-color: var(--color-bg-accent); }
.welcome-grid, .reverse-grid { display: grid; gap: 3.5rem; align-items: center; }
.welcome-grid { grid-template-columns: 1.2fr 1fr; }
.reverse-grid { grid-template-columns: 1fr 1.2fr; }
@media (max-width: 900px) { .welcome-grid, .reverse-grid { grid-template-columns: 1fr; gap: 2.5rem; } .reverse-grid .welcome-img-container { order: -1; } }

.welcome-text p { font-size: 1.1rem; margin-bottom: 1.5rem; }
.welcome-img-container { position: relative; border-radius: var(--border-radius); overflow: hidden; box-shadow: 0 10px 30px rgba(43, 30, 21, 0.1); }
.welcome-img { width: 100%; height: auto; display: block; object-fit: cover; aspect-ratio: 4 / 3; }
.service-list { margin-top: 2rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.25rem; list-style: none; }
.service-item { display: flex; align-items: flex-start; gap: 0.75rem; background-color: var(--color-bg-accent); padding: 1rem; border-radius: var(--border-radius); font-weight: 500; }

/* Hero */
.hero { position: relative; background-color: var(--color-bg-dark); background-image: linear-gradient(rgba(43, 30, 21, 0.85), rgba(43, 30, 21, 0.95)), url('img/hero-bg.jpg'); background-size: cover; background-position: center; color: var(--color-text-light); padding: clamp(4rem, 10vw, 8rem) 0; text-align: center; }
.hero-content { max-width: 800px; margin: 0 auto; }
.hero h1 { color: var(--color-text-light); margin-bottom: 1.5rem; }
.hero p { font-size: clamp(1.1rem, 2.5vw, 1.4rem); color: var(--color-text-light-muted); margin-bottom: 2.5rem; }
.hero-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero .btn-secondary { color: var(--color-text-light); border-color: var(--color-text-light); }
.hero .btn-secondary:hover, .hero .btn-secondary:focus { background-color: var(--color-text-light); color: var(--color-bg-dark); }

/* Leistungen */
.intro-text { max-width: 750px; font-size: 1.15rem; margin-bottom: 3rem; }
.leistungen-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; }
.leistung-card { background-color: var(--color-bg-light); padding: 2.5rem 2rem; border-radius: var(--border-radius); box-shadow: 0 4px 20px rgba(43, 30, 21, 0.04); border-top: 4px solid var(--color-primary); transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease; }
.leistung-card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(43, 30, 21, 0.08); }
.leistung-icon-wrapper { color: var(--color-primary); margin-bottom: 1.25rem; display: flex; align-items: center; }
.leistung-icon { width: 42px; height: 42px; }

/* Kontakt */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
@media (max-width: 850px) { .contact-grid { grid-template-columns: 1fr; gap: 3rem; } }
.contact-info address { font-style: normal; margin-top: 1.5rem; }
.contact-row { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 1.5rem; }
.contact-icon { color: var(--color-primary); flex-shrink: 0; margin-top: 0.25rem; width: 24px; height: 24px; }
.contact-details h3 { font-size: 1rem; color: var(--color-text-muted); margin-bottom: 0.25rem; text-transform: uppercase; letter-spacing: 0.05em; }
.contact-details p { font-size: 1.15rem; font-weight: 600; margin-bottom: 0; }
.contact-cta-box { background-color: var(--color-bg-light); padding: 3rem; border-radius: var(--border-radius); box-shadow: 0 8px 30px rgba(43, 30, 21, 0.05); text-align: center; border: 1px solid rgba(92, 74, 62, 0.1); }
.contact-cta-box h3 { font-size: 1.5rem; margin-bottom: 1rem; }
.contact-cta-box p { margin-bottom: 2rem; color: var(--color-text-muted); }
.cta-buttons { display: flex; flex-direction: column; gap: 1rem; }

/* Rechtstexte & Impressum */
.legal-section { padding: clamp(3rem, 6vw, 5rem) 0; background-color: var(--color-bg-light); flex-grow: 1; }
.legal-container { max-width: 800px; }
.legal-header { margin-bottom: 3rem; padding-bottom: 1.5rem; border-bottom: 2px solid var(--color-bg-accent); }
.legal-header h1 { font-size: clamp(2rem, 4vw, 3rem); color: var(--color-primary); }
.legal-content h2 { font-size: 1.5rem; margin-top: 2.5rem; margin-bottom: 1rem; color: var(--color-text-dark); }
.legal-content h3 { font-size: 1.25rem; margin-top: 1.5rem; margin-bottom: 0.75rem; }
.legal-content p, .legal-content ul { margin-bottom: 1rem; color: var(--color-text-muted); }
.legal-content ul { padding-left: 1.5rem; }
.legal-content li { margin-bottom: 0.5rem; }

/* Footer */
footer { background-color: var(--color-bg-dark); color: var(--color-text-light); padding: 4rem 0 2rem 0; border-top: 3px solid var(--color-primary); margin-top: auto; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 3rem; margin-bottom: 3rem; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; } }
.footer-logo-desc h3 { color: var(--color-text-light); margin-bottom: 1rem; font-size: 1.5rem; }
.footer-logo-desc p { color: var(--color-text-light-muted); max-width: 450px; }
.footer-links h3 { color: var(--color-text-light); font-size: 1.2rem; margin-bottom: 1.25rem; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 0.75rem; }
.footer-links a { color: var(--color-text-light-muted); text-decoration: none; }
.footer-links a:hover, .footer-links a:focus { color: var(--color-text-light); text-decoration: underline; }
.footer-bottom { padding-top: 2rem; border-top: 1px solid rgba(253, 251, 248, 0.1); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; color: var(--color-text-light-muted); font-size: 0.9rem; }

/* Back to Top */
.back-to-top { position: fixed; bottom: 2rem; right: 2rem; background-color: var(--color-primary); color: var(--color-text-light); border: none; width: 50px; height: 50px; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 15px rgba(0,0,0,0.2); opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s ease, background-color var(--transition-speed) ease; z-index: 999; }
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover, .back-to-top:focus { background-color: var(--color-primary-hover); }
.back-to-top-icon { width: 24px; height: 24px; }