/* SauberVibe Design System */
/* DSGVO: Keine externen Google Fonts. System-Font-Stack + optionales lokales Hosting. */
/* Für lokale Fonts: Dateien nach css/fonts/ legen und die @font-face Blöcke unten aktivieren. */
/*
@font-face { font-family: 'Playfair Display'; font-style: normal; font-weight: 400 700; font-display: swap; src: url('fonts/playfair-display.woff2') format('woff2'); }
@font-face { font-family: 'Source Sans 3'; font-style: normal; font-weight: 300 700; font-display: swap; src: url('fonts/source-sans-3.woff2') format('woff2'); }
*/

:root {
  --color-primary: #2E7D32;
  --color-primary-light: #43A047;
  --color-primary-vivid: #66BB6A;
  --color-gradient-start: #1B5E20;
  --color-gradient-end: #A5D6A7;
  --color-dark: #1C2526;
  --color-text: #2D3436;
  --color-text-light: #636E72;
  --color-bg: #FFFFFF;
  --color-bg-soft: #F8FBF8;
  --color-bg-section: #F0F7F0;
  --color-accent: #FF8F00;
  --color-accent-hover: #E65100;
  --color-border: #E8F5E9;
  --color-white: #FFFFFF;
  --font-heading: 'Playfair Display', 'Iowan Old Style', 'Palatino Linotype', Palatino, Georgia, 'Times New Roman', serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --transition: 0.3s ease;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--color-bg); color: var(--color-text); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.3; color: var(--color-dark); }
h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 600; }
h3 { font-size: clamp(1.125rem, 2vw, 1.5rem); font-weight: 600; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }
.text-center { text-align: center; }
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.875rem 1.75rem; font-family: var(--font-body); font-size: 1rem; font-weight: 600; border-radius: var(--radius-sm); cursor: pointer; border: none; transition: all var(--transition); text-decoration: none; }
.btn-primary { background: var(--color-primary); color: #fff; box-shadow: 0 4px 14px rgba(46,125,50,0.3); }
.btn-primary:hover { background: var(--color-gradient-start); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(46,125,50,0.4); }
.btn-accent { background: var(--color-accent); color: #fff; box-shadow: 0 4px 14px rgba(255,143,0,0.3); }
.btn-accent:hover { background: var(--color-accent-hover); transform: translateY(-2px); }
.btn-secondary { background: transparent; color: var(--color-primary); border: 2px solid var(--color-primary); }
.btn-secondary:hover { background: var(--color-primary); color: #fff; }
.btn-whatsapp { background: #25D366; color: #fff; }
.btn-whatsapp:hover { background: #1ea952; }
.btn svg { width: 20px; height: 20px; }

/* Header */
.header { position: fixed; top: 0; left: 0; right: 0; background: rgba(255,255,255,0.97); backdrop-filter: blur(10px); box-shadow: var(--shadow-sm); z-index: 1000; transition: all var(--transition); }
.header.scrolled { box-shadow: var(--shadow-md); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 0; max-width: 1200px; margin: 0 auto; padding-left: 1.25rem; padding-right: 1.25rem; }
.logo { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; }
.logo-img { height: 44px; width: auto; object-fit: contain; }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-brand { display: flex; align-items: center; gap: 0; }
.logo-brand .sauber { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; color: var(--color-primary); }
.logo-brand .vibe { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; color: #485964; }
.logo-sub { font-family: var(--font-body); font-size: 0.6rem; color: var(--color-text-light); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; margin-top: -2px; white-space: nowrap; }
.nav-desktop { display: none; align-items: center; gap: 1.75rem; }
.nav-link { font-size: 0.9rem; font-weight: 500; color: var(--color-text); transition: color var(--transition); position: relative; }
.nav-link:hover { color: var(--color-primary); }
.nav-link::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--color-primary); transition: width var(--transition); }
.nav-link:hover::after { width: 100%; }
.nav-cta { background: var(--color-primary); color: #fff !important; padding: 0.6rem 1.25rem; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.9rem; transition: all var(--transition); }
.nav-cta:hover { background: var(--color-gradient-start); }
.nav-cta::after { display: none; }
.header-phone { display: none; align-items: center; gap: 0.5rem; color: var(--color-primary); font-weight: 600; font-size: 0.9rem; }
.header-phone svg { width: 18px; height: 18px; }
.mobile-phone-btn { display: flex; align-items: center; justify-content: center; width: 42px; height: 42px; background: var(--color-primary); border-radius: 50%; color: #fff; }
.mobile-phone-btn svg { width: 20px; height: 20px; color: #fff; }
.mobile-menu-btn { display: flex; flex-direction: column; gap: 5px; padding: 8px; background: none; border: none; cursor: pointer; }
.mobile-menu-btn span { display: block; width: 24px; height: 2px; background: var(--color-text); transition: all var(--transition); border-radius: 2px; }
.mobile-menu-btn.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.mobile-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--color-white); box-shadow: var(--shadow-lg); padding: 1rem; }
.mobile-menu.active { display: block; }
.mobile-menu a { display: block; padding: 0.75rem 1rem; font-weight: 500; border-radius: var(--radius-sm); transition: background var(--transition); }
.mobile-menu a:hover { background: var(--color-bg-soft); }
@media(min-width:1024px) { .nav-desktop { display: flex; } .mobile-menu-btn, .mobile-phone-btn { display: none; } .header-phone { display: flex; } }