/* Institut für kohärente Lebensgestaltung – Design im Stil großflächiger Sektionen, warme Grüntöne */

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    color: #243029;
    line-height: 1.7;
    background: #ffffff;
    -webkit-font-smoothing: antialiased;
}

:root {
    --green-darkest: #1c2a22;
    --green-dark: #2f4a39;
    --green: #4a7c59;
    --green-mid: #5d9970;
    --green-light: #8fb89c;
    --cream: #f6f4ee;
    --sand: #ece6d8;
    --gold: #c9a96a;
    --text: #243029;
    --text-soft: #5d6b62;
    --line: #dde4dd;
}

h1, h2, h3 { font-weight: 700; letter-spacing: -0.4px; line-height: 1.15; }
h1 { font-size: 3.4rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.35rem; letter-spacing: -0.2px; }
em { font-style: italic; color: var(--green-mid); }
p { color: var(--text-soft); }
.accent-em { font-style: italic; color: var(--green-mid); font-weight: 700; }

.section-label {
    font-size: 0.78rem; text-transform: uppercase; letter-spacing: 2.5px;
    font-weight: 700; color: var(--green); margin-bottom: 1.5rem; display: block;
}
.section-label.on-dark { color: var(--gold); }

nav {
    position: fixed; top: 0; left: 0; right: 0;
    background: rgba(28, 42, 34, 0.95); backdrop-filter: blur(12px);
    z-index: 1000; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-container {
    max-width: 1300px; margin: 0 auto; padding: 1.1rem 2rem;
    display: flex; justify-content: space-between; align-items: center;
}
.logo { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.05rem; letter-spacing: 0.3px; }
.logo span { color: var(--gold); }
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a { color: rgba(255,255,255,0.8); text-decoration: none; font-size: 0.9rem; font-weight: 500; transition: color 0.25s; }
.nav-links a:hover, .nav-links a.active { color: var(--gold); }
.menu-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }

@media (max-width: 900px) {
    .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--green-darkest); padding: 1rem 2rem 1.5rem; }
    .nav-links.active { display: flex; }
    .nav-links a { padding: 0.7rem 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
    .menu-toggle { display: block; }
}

.hero {
    min-height: 100vh; display: flex; align-items: center;
    position: relative; overflow: hidden;
    background: linear-gradient(135deg, #1c2a22 0%, #2f4a39 55%, #4a7c59 100%);
    color: #fff;
}
.hero::before {
    content: ''; position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 78% 22%, rgba(201,169,106,0.16) 0%, transparent 42%),
        radial-gradient(circle at 12% 80%, rgba(255,255,255,0.06) 0%, transparent 45%);
    pointer-events: none;
}
.hero-inner { max-width: 1300px; margin: 0 auto; padding: 8rem 2rem 4rem; position: relative; z-index: 2; }
.hero-tagline { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 4px; color: var(--gold); margin-bottom: 2rem; font-weight: 600; }
.hero h1 { color: #fff; max-width: 16ch; margin-bottom: 1.8rem; }
.hero-lead { font-size: 1.3rem; color: rgba(255,255,255,0.88); max-width: 52ch; margin-bottom: 2.5rem; }
.hero-meta { font-size: 0.8rem; letter-spacing: 1px; text-transform: uppercase; color: rgba(255,255,255,0.55); margin-bottom: 1rem; }

@media (max-width: 768px) {
    .hero h1 { font-size: 2.3rem; }
    .hero-lead { font-size: 1.1rem; }
    .hero-inner { padding: 7rem 1.5rem 3rem; }
}

.btn { display: inline-block; padding: 1rem 2.1rem; border-radius: 2px; font-weight: 600; font-size: 0.95rem; text-decoration: none; transition: all 0.25s; cursor: pointer; border: none; letter-spacing: 0.3px; }
.btn-gold { background: var(--gold); color: var(--green-darkest); }
.btn-gold:hover { background: #d9bd84; transform: translateY(-2px); }
.btn-outline { border: 1.5px solid rgba(255,255,255,0.4); color: #fff; margin-left: 0.8rem; }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.btn-green { background: var(--green); color: #fff; }
.btn-green:hover { background: var(--green-dark); transform: translateY(-2px); }
.btn-green-outline { border: 1.5px solid var(--green); color: var(--green); }
.btn-green-outline:hover { background: var(--green); color: #fff; }

@media (max-width: 600px) { .btn-outline { margin-left: 0; margin-top: 0.8rem; } }

section { padding: 6.5rem 2rem; }
.wrap { max-width: 1200px; margin: 0 auto; }
.wrap-narrow { max-width: 820px; margin: 0 auto; }
.sec-cream { background: var(--cream); }
.sec-white { background: #fff; }
.sec-dark { background: var(--green-darkest); color: #fff; }
.sec-dark h2, .sec-dark h3 { color: #fff; }
.sec-dark p { color: rgba(255,255,255,0.75); }
.sec-green { background: linear-gradient(135deg, var(--green-dark), var(--green)); color: #fff; }
.sec-green h2, .sec-green h3 { color: #fff; }
.sec-green p { color: rgba(255,255,255,0.85); }
.sec-head { margin-bottom: 3.5rem; max-width: 760px; }
.sec-head h2 { margin-bottom: 1.2rem; }
.sec-head p { font-size: 1.15rem; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2.5rem; margin-top: 1rem; }
.stat-num { font-size: 3.2rem; font-weight: 700; color: var(--gold); line-height: 1; margin-bottom: 0.6rem; letter-spacing: -1px; }
.stat-label { font-weight: 700; color: inherit; margin-bottom: 0.4rem; font-size: 1.05rem; }
.stat-desc { font-size: 0.92rem; }

.project-block { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.project-block.reverse .project-visual { order: 2; }
.project-visual { border-radius: 4px; min-height: 360px; position: relative; overflow: hidden; display: flex; align-items: flex-end; padding: 2.5rem; }
.pv-1 { background: linear-gradient(150deg, #2f4a39, #5d9970); }
.pv-2 { background: linear-gradient(150deg, #3d6348, #8fb89c); }
.pv-3 { background: linear-gradient(150deg, #4a7c59, #c9a96a); }
.project-visual::before { content: ''; position: absolute; inset: 0; background-image: radial-gradient(circle at 75% 25%, rgba(255,255,255,0.12) 0%, transparent 55%); }
.project-visual .pv-num { position: relative; z-index: 2; font-size: 5rem; font-weight: 700; color: rgba(255,255,255,0.9); line-height: 1; }
.project-content h2 { margin-bottom: 1.3rem; }
.project-content .lead { font-size: 1.1rem; color: var(--text); margin-bottom: 1.5rem; font-weight: 500; }

@media (max-width: 850px) {
    .project-block { grid-template-columns: 1fr; gap: 2rem; }
    .project-block.reverse .project-visual { order: 0; }
    .project-visual { min-height: 200px; padding: 1.5rem; }
    .project-visual .pv-num { font-size: 3.5rem; }
}

.feature-list { list-style: none; margin: 1.5rem 0; }
.feature-list li { padding: 0.7rem 0 0.7rem 1.8rem; position: relative; color: var(--text-soft); border-bottom: 1px solid var(--line); }
.feature-list li::before { content: ''; position: absolute; left: 0; top: 1.25rem; width: 8px; height: 8px; background: var(--green); border-radius: 50%; }
.sec-dark .feature-list li, .sec-green .feature-list li { border-bottom-color: rgba(255,255,255,0.12); }
.sec-dark .feature-list li::before, .sec-green .feature-list li::before { background: var(--gold); }

.value-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 3rem; margin-top: 1rem; }
.value-col .vc-label { font-size: 0.8rem; letter-spacing: 2px; text-transform: uppercase; font-weight: 700; color: var(--gold); margin-bottom: 1rem; }
.value-col h3 { margin-bottom: 0.8rem; }

.purpose-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2.5rem; margin-top: 1rem; }
.purpose-num { font-size: 0.95rem; font-weight: 700; color: var(--gold); letter-spacing: 1px; margin-bottom: 0.6rem; }
.purpose-item h3 { font-size: 1.2rem; margin-bottom: 0.7rem; }

.quote-block { border-left: 3px solid var(--gold); padding: 0.5rem 0 0.5rem 2rem; margin: 2.5rem 0; max-width: 60ch; }
.quote-block p { font-size: 1.4rem; font-style: italic; color: inherit; line-height: 1.5; }
.quote-cite { font-size: 0.8rem; letter-spacing: 1px; text-transform: uppercase; color: var(--text-soft); margin-top: 1rem; font-style: normal; }
.sec-dark .quote-cite, .sec-green .quote-cite { color: rgba(255,255,255,0.55); }

.info-table { width: 100%; border-collapse: collapse; margin-top: 1rem; }
.info-table td { padding: 1rem 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.info-table td:first-child { font-weight: 600; color: var(--text); width: 38%; }
.info-table td:last-child { color: var(--text-soft); }

.contact-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2.5rem; margin-top: 2.5rem; }
.contact-col .cc-label { font-size: 0.78rem; letter-spacing: 2px; text-transform: uppercase; color: var(--gold); font-weight: 700; margin-bottom: 0.8rem; }
.contact-col a { color: rgba(255,255,255,0.9); text-decoration: none; }
.contact-col a:hover { color: var(--gold); }

footer { background: #15201a; color: rgba(255,255,255,0.55); padding: 3rem 2rem; text-align: center; font-size: 0.85rem; }
footer a { color: rgba(255,255,255,0.7); text-decoration: none; }
footer a:hover { color: var(--gold); }
.footer-sep { margin: 0 0.6rem; }

.mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; } .mt-4 { margin-top: 2rem; }
.center { text-align: center; }

@media (max-width: 768px) {
    h1 { font-size: 2.3rem; } h2 { font-size: 1.8rem; }
    section { padding: 4rem 1.5rem; }
    .stat-num { font-size: 2.5rem; }
    .quote-block p { font-size: 1.15rem; }
}