/* ==========================================================================
   Siebenäcker – Base styles
   ========================================================================== */

:root {
  --color-bg: #faf8f2;
  --color-ink: #1f2a1c;
  --color-ink-soft: #4a5642;
  --color-green-900: #1c2b1a;
  --color-green-700: #2f4a2a;
  --color-green-500: #4f7a3f;
  --color-green-300: #8fb87a;
  --color-cream: #f3ede0;
  --color-white: #ffffff;
  --color-line: rgba(31, 42, 28, 0.12);

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container-width: 1140px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;

  --transition: 0.25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--color-green-900);
  margin: 0 0 var(--space-2);
  line-height: 1.15;
  font-weight: 600;
}

p {
  margin: 0 0 var(--space-2);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--color-green-500);
  color: var(--color-white);
  box-shadow: 0 8px 24px rgba(79, 122, 63, 0.35);
}

.btn-primary:hover {
  background: var(--color-green-700);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(6px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.18);
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding-block: var(--space-2);
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.site-header.is-scrolled {
  background: rgba(250, 248, 242, 0.9);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--color-line);
  padding-block: 0.75rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-white);
  transition: color var(--transition);
}

.site-header.is-scrolled .logo {
  color: var(--color-green-900);
}

.nav {
  display: flex;
  gap: var(--space-4);
}

.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  transition: color var(--transition);
}

.site-header.is-scrolled .nav a {
  color: var(--color-ink);
}

.nav a:hover {
  color: var(--color-green-300);
}

.site-header.is-scrolled .nav a:hover {
  color: var(--color-green-500);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: background var(--transition), transform var(--transition), opacity var(--transition);
}

.site-header.is-scrolled .nav-toggle span {
  background: var(--color-ink);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  height: 100svh;
  min-height: 560px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: var(--color-white);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(20, 30, 18, 0.35) 0%, rgba(20, 30, 18, 0.25) 40%, rgba(15, 24, 13, 0.85) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-bottom: var(--space-6);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-green-300);
  margin-bottom: var(--space-2);
}

.hero h1 {
  color: var(--color-white);
  font-size: clamp(2.2rem, 6vw, 4rem);
  max-width: 16ch;
  margin-bottom: var(--space-3);
}

.hero-sub {
  max-width: 46ch;
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: var(--space-4);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.scroll-hint {
  position: absolute;
  bottom: var(--space-3);
  right: var(--space-3);
  z-index: 1;
  width: 30px;
  height: 48px;
  border: 2px solid rgba(255, 255, 255, 0.7);
  border-radius: 999px;
}

.scroll-hint span {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 4px;
  height: 8px;
  background: var(--color-white);
  border-radius: 999px;
  transform: translateX(-50%);
  animation: scroll-bounce 1.6s infinite;
}

@keyframes scroll-bounce {
  0% { opacity: 1; top: 8px; }
  70% { opacity: 0; top: 26px; }
  100% { opacity: 0; top: 26px; }
}

/* ==========================================================================
   Sections
   ========================================================================== */

.section {
  padding-block: var(--space-6);
}

.section-alt {
  background: var(--color-cream);
}

.section-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-green-500);
  margin-bottom: var(--space-1);
}

.section h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  max-width: 20ch;
  margin-bottom: var(--space-4);
}

.section-intro {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  max-width: 62ch;
  margin-top: calc(var(--space-4) * -1);
  margin-bottom: var(--space-4);
}

/* About / split */

.split {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-5);
  align-items: start;
}

.split-text p {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
}

.split-stats {
  display: grid;
  gap: var(--space-3);
}

.split-even {
  grid-template-columns: 1fr 1fr;
}

.vision-block h3 {
  font-size: 1.3rem;
  color: var(--color-green-500);
}

.vision-block p {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
}

.stat {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-green-500);
  font-weight: 700;
}

.stat-label {
  color: var(--color-ink-soft);
  font-size: 0.95rem;
}

/* Mission / cards */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  border: 1px solid var(--color-line);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(31, 42, 28, 0.08);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-2);
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--color-ink-soft);
  margin: 0;
}

/* Der Mensch im Mittelpunkt */

.mensch-inner {
  max-width: 720px;
  text-align: center;
}

.mensch-inner h2 {
  margin-inline: auto;
}

.mensch-intro {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--color-green-900);
  margin-bottom: var(--space-4);
}

.mensch-list {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.mensch-list li {
  font-size: 1.15rem;
  color: var(--color-ink-soft);
  padding-block: var(--space-1);
  border-bottom: 1px solid var(--color-line);
}

.mensch-list li:last-child {
  border-bottom: none;
}

.mensch-outro {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-green-700);
  font-weight: 600;
  margin: 0;
}

/* Zukunftsgeschichte */

.story {
  background: var(--color-green-900);
  color: rgba(255, 255, 255, 0.9);
}

.story-inner {
  max-width: 720px;
}

.story .section-eyebrow {
  color: var(--color-green-300);
}

.story h2 {
  color: var(--color-white);
}

.story p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.1rem;
}

.story-highlight {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--color-white) !important;
  font-weight: 600;
}

.story .btn {
  margin-top: var(--space-2);
}

/* Zielgruppen chips */

.chip-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.chip-list li {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: 999px;
  padding: 0.5rem 1.1rem;
  font-size: 0.92rem;
  color: var(--color-green-700);
  font-weight: 500;
}

/* Visit */

.visit-inner {
  text-align: center;
  max-width: 640px;
}

.visit-inner h2 {
  margin-inline: auto;
}

.visit-text {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  margin-bottom: var(--space-4);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--color-green-900);
  color: rgba(255, 255, 255, 0.85);
  padding-block: var(--space-4);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-logo {
  color: var(--color-white);
  margin-bottom: 0.25rem;
}

.footer-tagline {
  margin: 0;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

.footer-contact {
  text-align: right;
  font-size: 0.9rem;
}

.footer-contact a {
  color: var(--color-green-300);
}

.footer-contact p {
  margin: 0 0 0.25rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .split {
    grid-template-columns: 1fr;
  }

  .cards {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 64px;
    flex-direction: column;
    background: var(--color-bg);
    padding: var(--space-3);
    gap: var(--space-2);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
    box-shadow: 0 12px 24px rgba(31, 42, 28, 0.08);
  }

  .nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav a {
    color: var(--color-ink) !important;
    padding: 0.5rem 0;
  }

  .nav-toggle {
    display: flex;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-contact {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    max-width: none;
  }
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .scroll-hint span {
    animation: none;
  }
}