/* =========================
   Basis-Styling
========================= */
:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #1b2a3a;
  --muted: #5b6b7c;
  --brand: #0a5ca8;
  --brand-600: #084a86;
  --ok: #28a745;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

a {
  color: var(--brand);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* =========================
   Header / Hero
========================= */
header {
  background: linear-gradient(to bottom, rgba(8, 74, 134, 0.85), rgba(8, 74, 134, .3)),
              url('header-bg.png') no-repeat center center;
  background-size: cover;
  color: white;
  text-align: center;
  padding: 120px 20px;
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

header h1 {
  margin: 0 0 8px;
  font-weight: 800;
  letter-spacing: 0.5px;
  font-size: clamp(28px, 5vw, 52px);
}

header p {
  margin: 0 0 28px;
  color: #e6eef6;
  font-size: clamp(16px, 2.4vw, 20px);
}

/* =========================
   Buttons
========================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 12px 18px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(4px);
  font-weight: 600;
  text-decoration: none;
  transition: 0.15s ease-in-out;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.18);
}

.btn--solid {
  background: #fff;
  color: var(--brand);
  border-color: #fff;
}
.btn--solid:hover {
  background: #f2f6ff;
}

.big-button {
  display: inline-block;
  font-size: 18px;
  font-weight: bold;
  padding: 14px 28px;
  border-radius: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--ok);
  color: white;
  text-decoration: none;
  transition: background 0.3s ease;
}
.big-button:hover {
  background: #1b7d3f;
}

/* =========================
   Karten & Layout
========================= */
.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 48px 0;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}

.grid {
  display: grid;
  gap: 22px;
}
.grid.cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
@media (max-width: 720px) {
  .grid.cols-3, .grid.cols-2 {
    grid-template-columns: 1fr;
  }
  header {
    padding: 80px 20px;
  }
}

h2 {
  margin: 0 0 18px;
  font-size: 28px;
}
.muted {
  color: var(--muted);
}

/* =========================
   Team
========================= */
.team {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
@media (max-width: 720px) {
  .team {
    grid-template-columns: 1fr;
  }
}

.person {
  display: flex;
  gap: 14px;
  padding: 16px;
  border-radius: 14px;
  background: #f3f6fb;
}
.avatar {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, #dfe9f7, #bcd4f2);
  display: grid;
  place-items: center;
  color: #2c4d77;
  font-weight: 700;
}
.role {
  font-size: 13px;
  color: var(--muted);
  margin-top: 2px;
}

/* =========================
   Termine & Mitglied werden
========================= */
.two {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 22px;
}
@media (max-width: 900px) {
  .two {
    grid-template-columns: 1fr;
  }
}

.date {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  background: #e8effa;
  color: var(--brand);
  display: grid;
  place-items: center;
  font-weight: 800;
}

/* =========================
   Footer
========================= */
footer {
  padding: 26px 0 44px;
  color: var(--muted);
  text-align: center;
}
footer a {
  color: var(--muted);
}
footer a:hover {
  color: var(--brand);
}