/* Schulverein des Gymnasiums Alstertal e.V. – Stylesheet
   Keine externen Schriften oder Skripte (DSGVO-freundlich). */

:root {
  --green-900: #16302a;
  --green-800: #1f3a2e;
  --green-600: #2f6b53;
  --green-100: #e6efe9;
  --sand-50:  #faf7f2;
  --sand-100: #f3ede3;
  --amber:    #e0a33b;
  --amber-d:  #b97d1c;
  --ink:      #1d2521;
  --muted:    #5b6660;
  --line:     #dcd5c8;
  --radius:   14px;
  --shadow:   0 1px 2px rgba(22,48,42,.06), 0 8px 24px rgba(22,48,42,.08);
  --wrap:     1120px;
  font-size: 17px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-sans-serif, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--sand-50);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: var(--green-600); text-underline-offset: 3px; }
a:hover { color: var(--green-800); }
h1, h2, h3 { font-family: ui-serif, Georgia, "Times New Roman", serif; line-height: 1.2; color: var(--green-900); margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.3rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: 20px; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 700; color: var(--amber-d); margin-bottom: .6em; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 44em; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; background: #fff; padding: 8px 12px; z-index: 100; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250,247,242,.92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--green-900); }
.brand-mark {
  width: 40px; height: 40px; border-radius: 10px; flex: none;
  background: var(--green-800); color: var(--sand-50);
  display: grid; place-items: center; font-family: ui-serif, Georgia, serif; font-weight: 700; font-size: 1.05rem;
}
.brand-text { font-weight: 700; line-height: 1.15; font-size: .95rem; }
.brand-text small { display: block; font-weight: 400; color: var(--muted); font-size: .78rem; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a { text-decoration: none; color: var(--ink); padding: 8px 12px; border-radius: 8px; font-size: .92rem; }
.nav a:hover { background: var(--green-100); color: var(--green-900); }
.nav a.cta { background: var(--amber); color: var(--green-900); font-weight: 700; }
.nav a.cta:hover { background: var(--amber-d); color: #fff; }
.menu-toggle { display: none; }

@media (max-width: 860px) {
  .menu-toggle {
    display: inline-flex; align-items: center; gap: 6px;
    border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 8px 12px; font: inherit; font-size: .9rem; cursor: pointer;
  }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 68px; background: var(--sand-50); border-bottom: 1px solid var(--line); padding: 8px 20px 16px; flex-direction: column; }
  .nav.open { display: flex; }
}

/* Hero */
.hero { position: relative; color: #fff; background: var(--green-900); overflow: hidden; }
/* Ohne Foto: Zwei weiche Lichter und ein feines Punktraster geben dem
   dunklen Grün Tiefe, damit der Kopf gestaltet wirkt und nicht leer. */
.hero {
  background:
    radial-gradient(circle at 85% 20%, rgba(224,163,59,.28) 0, rgba(224,163,59,0) 38%),
    radial-gradient(circle at 70% 110%, rgba(47,107,83,.75) 0, rgba(47,107,83,0) 55%),
    linear-gradient(135deg, var(--green-900) 0%, var(--green-800) 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,.09) 1px, transparent 1.4px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(90deg, transparent 30%, #000 100%);
          mask-image: linear-gradient(90deg, transparent 30%, #000 100%);
}
.hero-mark {
  position: absolute; right: max(20px, calc((100% - var(--wrap)) / 2 + 20px)); top: 50%; transform: translateY(-50%);
  font-family: ui-serif, Georgia, serif; font-weight: 700; font-size: clamp(8rem, 22vw, 17rem); line-height: 1;
  color: rgba(250,247,242,.07); letter-spacing: -.04em; user-select: none; z-index: 0;
}
.hero .wrap { position: relative; z-index: 1; padding-block: clamp(72px, 12vw, 140px); }
.hero h1 { color: #fff; max-width: 14em; }
.hero .eyebrow { color: var(--amber); }
.hero p { font-size: 1.2rem; max-width: 34em; color: #eef3ef; }
.btns { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.btn { display: inline-block; text-decoration: none; font-weight: 700; padding: 13px 22px; border-radius: 999px; border: 2px solid transparent; }
.btn-primary { background: var(--amber); color: var(--green-900); }
.btn-primary:hover { background: #fff; color: var(--green-900); }
.btn-ghost { border-color: rgba(255,255,255,.7); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); color: #fff; }
.btn-dark { background: var(--green-800); color: #fff; }
.btn-dark:hover { background: var(--green-600); color: #fff; }

/* Sections */
section { padding-block: clamp(56px, 8vw, 96px); }
section.alt { background: var(--sand-100); }
section.dark { background: var(--green-800); color: #eef3ef; }
section.dark h2, section.dark h3 { color: #fff; }
section.dark .eyebrow { color: var(--amber); }

.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 32px; }
.fact { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.fact strong { display: block; font-family: ui-serif, Georgia, serif; font-size: 2rem; color: var(--green-800); line-height: 1.1; }
.fact span { color: var(--muted); font-size: .95rem; }

.two-col { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }

/* Projects */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 36px; }
.card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column; }
.card { border-top: 4px solid var(--green-600); }
.card:nth-child(2n) { border-top-color: var(--amber); }
.card-icon { width: 56px; height: 56px; border-radius: 50%; background: var(--green-100); color: var(--green-800); display: grid; place-items: center; margin: 26px 24px 0; }
.card:nth-child(2n) .card-icon { background: #f8ecd6; color: var(--amber-d); }
.card-body { padding: 16px 24px 26px; }
.card-body p { color: var(--muted); margin: 0; }

.report { margin-top: 40px; background: #fff; border-left: 5px solid var(--amber); border-radius: 0 var(--radius) var(--radius) 0; padding: 28px 32px; box-shadow: var(--shadow); }
.report h3 { margin-bottom: .3em; }
.report .meta { color: var(--muted); font-size: .9rem; margin-bottom: 1em; }
.report blockquote { margin: 0; }
.report footer { margin-top: 1em; font-weight: 700; color: var(--green-800); }

/* Membership / donate */
.panel { background: #fff; color: var(--ink); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.panel h3 { color: var(--green-900); }
.price { font-family: ui-serif, Georgia, serif; font-size: 2.6rem; color: var(--green-800); line-height: 1; }
.price small { font-size: 1rem; color: var(--muted); font-family: inherit; }
.check { list-style: none; padding: 0; margin: 16px 0 0; }
.check li { padding-left: 28px; position: relative; margin-bottom: 8px; }
.check li::before { content: ""; position: absolute; left: 4px; top: .55em; width: 12px; height: 7px; border-left: 2.5px solid var(--green-600); border-bottom: 2.5px solid var(--green-600); transform: rotate(-45deg); }

.donate-grid { display: grid; grid-template-columns: 1fr 1fr 280px; gap: 20px; margin-top: 32px; }
.bank dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0; }
.bank dt { color: var(--muted); }
.bank dd { margin: 0; font-weight: 700; }
.iban { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; letter-spacing: .02em; }
.qr { text-align: center; }
.qr img { margin: 0 auto 10px; width: 190px; height: 190px; }
.qr small { color: var(--muted); display: block; line-height: 1.4; }
.note { font-size: .95rem; color: #d6e2da; margin-top: 24px; }
.note strong { color: #fff; }

/* Supporters */
.supporter { display: flex; gap: 24px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; margin-top: 28px; }
.supporter .icon { flex: none; width: 64px; height: 64px; border-radius: 50%; background: var(--green-100); display: grid; place-items: center; color: var(--green-800); }
.supporter p { margin: 0; color: var(--muted); }

/* Team */
.team { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 36px; }
.person { text-align: center; }
.avatar { width: 100%; max-width: 132px; margin-inline: auto; aspect-ratio: 1; border-radius: 50%; object-fit: cover; background: var(--green-100); margin-bottom: 14px; border: 4px solid #fff; box-shadow: var(--shadow); }
.avatar-initials { display: grid; place-items: center; font-family: ui-serif, Georgia, serif; font-size: 2.2rem; color: var(--green-800); }
.person:nth-child(2n) .avatar-initials { background: #f8ecd6; color: var(--amber-d); }
.person h3 { margin: 0; font-size: 1.1rem; }
.person p { margin: 0; color: var(--muted); font-size: .95rem; }

/* Contact */
.contact-box { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between; background: var(--green-100); border-radius: var(--radius); padding: 32px; }
.contact-box a.mail { font-size: 1.35rem; font-weight: 700; color: var(--green-900); }

/* Footer */
.site-footer { background: var(--green-900); color: #c9d6cf; padding-block: 40px; font-size: .92rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; }
.site-footer a { color: #fff; }
.site-footer nav a { margin-left: 18px; }

/* Legal pages */
.legal { max-width: 760px; }
.legal h2 { font-size: 1.35rem; margin-top: 1.6em; }
.todo { background: #fff5dc; border: 1px dashed var(--amber-d); padding: 2px 6px; border-radius: 4px; }

@media (max-width: 960px) {
  .donate-grid { grid-template-columns: 1fr 1fr; }
  .donate-grid .qr { grid-column: 1 / -1; }
  .team { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .two-col, .cards, .donate-grid, .facts { grid-template-columns: 1fr; }
  .supporter { flex-direction: column; text-align: center; }
  .site-footer nav a { margin: 0 18px 0 0; }
}