/* =========================================
   Fischer-Verein Arbon – Dark Lake Theme
   Hintergrundbild: assets/img/background-water.jpg
   ========================================= */

/* Farben & Grundwerte */
:root {
  --color-primary: #0f4c81;        /* tiefes Wasserblau */
  --color-primary-light: #3b7aba;  /* helleres Blau */
  --color-secondary: #1b8ea6;      /* Türkis / Wasser */
  --color-bg: #050b16;             /* sehr dunkles Blau */
  --color-surface: rgba(15, 23, 42, 0.9); /* dunkle Fläche für Boxen */
  --color-surface-soft: rgba(15, 23, 42, 0.7);
  --color-text: #e2e8f0;           /* hellgrauer Text */
  --color-muted: #94a3b8;          /* dezentes Hellgrau */
  --shadow-soft: 0 14px 35px rgba(0, 0, 0, 0.6);
  --radius-lg: 16px;
  --radius-xl: 24px;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

/* Globaler Hintergrund – Wasser + dunkler Overlay */
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(rgba(5, 11, 22, 0.85), rgba(5, 11, 22, 0.9)),
    url("../img/background-water.jpg") center/cover no-repeat fixed;
  color: var(--color-text);
  line-height: 1.6;
}

/* ============================
   Layout-Helfer
   ============================ */

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background: linear-gradient(
      135deg,
      rgba(15, 23, 42, 0.95),
      rgba(15, 23, 42, 0.9)
    );
  box-shadow: var(--shadow-soft);
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.section-intro {
  max-width: 40rem;
  color: var(--color-muted);
}

.section-actions {
  margin-top: 2rem;
}

/* ============================
   Header & Navigation
   ============================ */

/* ===============================
   HEADER – stabil & smooth scroll
   =============================== */

/* Grundlayout */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
  transition: background 0.3s ease, box-shadow 0.3s ease;

  /* 🧘 Chrome-Stabilisierer */
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: center; /* ← GEÄNDERT von space-between */
  flex-wrap: wrap;
  min-height: 100px;
  transition: min-height 0.3s ease;
  padding: 0 1.5rem;
}



/* Navigation unter dem Text - MITTIG */
.main-nav {
  width: 100%;
  order: 3;
  margin-top: 1rem;
  display: flex; /* ← HINZUGEFÜGT */
  justify-content: center; /* ← HINZUGEFÜGT */
}
.nav-toggle {
  order: 2; /* ← Burger rechts neben Logo/Text */
}

/* Logo und Burger positionieren */
.logo {
  position: absolute;
  left: 1.5rem;
}

.nav-toggle {
  position: absolute;
  right: 1.5rem;
  order: 2;
}

/* Beim Scrollen kompakter */
.site-header.shrink .nav-container {
  min-height: 70px;
}

/* Logo-Styling */
.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.logo img {
  height: 140px;
  width: auto;
  border-radius: 50%;
  padding: 8px;
  background: radial-gradient(
    circle at 50% 45%,
    rgba(255, 255, 255, 0.12),
    rgba(15, 23, 42, 0.5)
  );
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.6);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease,
    background 0.3s ease;
}

/* Logo beim Scrollen skalieren, nicht „springen“ */
.site-header.shrink .logo img {
  transform: scale(0.75);
  box-shadow: 0 3px 15px rgba(0, 0, 0, 0.7);
}

/* Schöner Glanz beim Hover – subtiler Lichteffekt */
.logo img:hover {
  background: radial-gradient(
    circle at 40% 30%,
    rgba(255, 255, 255, 0.25),
    rgba(15, 23, 42, 0.4)
  );
  box-shadow:
    0 10px 30px rgba(0, 0, 0, 0.75),
    0 0 25px rgba(173, 216, 230, 0.25);
}

/* Statt height ändern → sanft skalieren (Edge-sicher) */
.site-header .logo img {
  height: 140px;
  transition: transform 0.3s ease;
}

.site-header.shrink .logo img {
  transform: scale(0.75);
}

/* Kleine Titelzeile (optional, falls du sie nutzt) */
.site-title-small {
  margin-left: 1rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  white-space: nowrap;
}
.site-header.shrink .site-title-small {
  opacity: 1;
  transform: translateY(0);
}

/* Navigation */
.main-nav ul {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.main-nav a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s ease;
}
.main-nav a:hover {
  color: var(--color-accent);
}

/* Responsives Verhalten */
@media (max-width: 768px) {
  .nav-container {
    flex-wrap: wrap;
  }
  .main-nav {
    width: 100%;
    text-align: right;
  }
  .site-title-small {
    display: none;
  }
}

/* Navigation - Desktop horizontal, Mobile Overlay */

.main-nav {
  position: relative; /* ← GEÄNDERT */
  background: transparent; /* ← GEÄNDERT */
  box-shadow: none; /* ← GEÄNDERT */
  border-radius: 0; /* ← GEÄNDERT */
  margin-top: 0; /* ← GEÄNDERT */
  transform: none; /* ← GEÄNDERT */
  opacity: 1; /* ← GEÄNDERT */
  visibility: visible; /* ← GEÄNDERT */
  transition: none; /* ← GEÄNDERT */
  min-width: auto; /* ← GEÄNDERT */
  z-index: 60;
}



.main-nav ul {
  list-style: none;
  display: flex;
  flex-direction: row; /* ← GEÄNDERT von column zu row */
  gap: 1.5rem; /* ← GEÄNDERT von 0.3rem zu 1.5rem */
  margin: 0;
  padding: 0; /* ← GEÄNDERT von 0.9rem 1.7rem 1.2rem zu 0 */
}

.main-nav li {
  padding: 0.25rem 0;
}

.main-nav a {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding-bottom: 0.1rem;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary-light));
  transition: width 0.2s ease;
}

.main-nav a:hover::after,
.main-nav a:focus::after {
  width: 100%;
}

/* Burger-Button - NUR auf Mobile sichtbar */

.nav-toggle {
  display: none; /* ← GEÄNDERT von block zu none */
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #e5e7eb;
  border-radius: 999px;
}

.nav-toggle span + span {
  margin-top: 4px;
}

/* Menü sichtbar, wenn .nav-open auf dem Header gesetzt wird (per JS) */

.site-header.nav-open .main-nav {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

/* Header – Grundzustand */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  transition: all 0.3s ease;
  padding: 1.2rem 0;
  backdrop-filter: blur(10px);
}

/* Header – geschrumpfte Version beim Scrollen */
.site-header.shrink {
  padding: 0.35rem 0;
  background: rgba(0, 0, 0, 0.65);
}


/* ============================
   Hero-Bereich
   ============================ */

.hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  color: #f9fafb;
  background:
    linear-gradient(
      rgba(5, 11, 22, 0.6),
      rgba(5, 11, 22, 0.75)
    ),
    url("../img/hero-lake.jpg") center/cover no-repeat fixed;
  box-shadow: var(--shadow-soft);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.06), transparent);
}

.hero-content {
  position: relative;
  padding: 4rem 0;
  max-width: 40rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 4vw, 3.2rem);
  margin-bottom: 0.6rem;
  color: #f1f5f9;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 1.6rem;
  color: #e2e8f0;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    transform 0.1s ease,
    box-shadow 0.1s ease,
    background 0.1s ease,
    color 0.1s ease,
    border-color 0.1s ease;
}

.btn-primary {
  background: #f9fafb;
  color: var(--color-primary);
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.75);
}

.btn-secondary {
  background: rgba(15, 23, 42, 0.2);
  color: #e5e7eb;
  border-color: rgba(248, 250, 252, 0.4);
}

.btn-secondary:hover {
  background: rgba(15, 23, 42, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary-light);
  border-color: var(--color-primary-light);
}

.btn-outline:hover {
  background: var(--color-primary-light);
  color: #0b1120;
}

/* ============================
   Cards & Grids
   ============================ */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(6px);
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    background 0.15s ease,
    border-color 0.15s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.8);
  background: rgba(15, 23, 42, 0.98);
}

.board-card {
  text-align: center;
}

.board-card img {
  width: 110px;
  height: 110px;
  border-radius: 999px;
  object-fit: cover;
  margin-bottom: 0.75rem;
  border: 2px solid rgba(148, 163, 184, 0.7);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
}

/* ============================
   Timeline (Termine)
   ============================ */

.timeline {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: minmax(80px, 120px) 1fr;
  gap: 1rem;
  align-items: flex-start;
}

.timeline-date {
  font-weight: 700;
  color: var(--color-primary-light);
}

.timeline-content h3 {
  margin: 0 0 0.25rem 0;
}

/* ============================
   Zwei-Spalten-Layouts
   ============================ */

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.5fr);
  gap: 2rem;
  align-items: flex-start;
  margin-top: 1.5rem;
}

.info-box,
.highlight-box {
  background: var(--color-surface-soft);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(8px);
}

/* ============================
   Sponsoren
   ============================ */

.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.sponsor-placeholder {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-soft);
  color: var(--color-muted);
  font-size: 0.9rem;
}

/* Sponsoren-Karten */

.sponsor-card {
  text-align: center;
  padding: 1.25rem 1rem;
}

.sponsor-card h3 {
  margin: 0;
  font-size: 1rem;
}

.sponsor-card img {
  display: block;
  margin: 0 auto 0.75rem auto;
  max-width: 160px;
  max-height: 70px;
  object-fit: contain;
  filter: brightness(1.05);
}


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

.site-footer {
  background: #020617;
  color: rgba(226, 232, 240, 0.9);
  margin-top: 3rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  padding: 2.5rem 0 1.5rem;
}

.site-footer h3,
.site-footer h4 {
  margin-top: 0;
}

.site-footer a {
  color: rgba(226, 232, 240, 0.9);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer li + li {
  margin-top: 0.3rem;
}

.footer-bottom {
  border-top: 1px solid rgba(148, 163, 184, 0.35);
  text-align: center;
  padding: 0.75rem 1rem 1rem;
  font-size: 0.85rem;
}

/* ============================================
   Kalender – Glassmorphism / Dark Lake Style
   ============================================ */

.calendar-embed-wrapper {
  background: rgba(15, 23, 42, 0.55);           /* dunkler, transparenter Hintergrund */
  border: 1px solid rgba(255, 255, 255, 0.12);  /* feine Linie */
  border-radius: 20px;
  padding: 1.5rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  margin-top: 2rem;
  position: relative;
}

.calendar-embed-wrapper::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 20px;
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.06),
    transparent
  );
  pointer-events: none;
}

.calendar-embed {
  width: 100%;
  height: 500px;     /* kannst du anpassen */
  border: none;
  border-radius: 14px;
  overflow: hidden;
}

/* === Edge-Fix: Logo-Zittern verhindern === */
.logo img {
  backface-visibility: hidden;
  transform: translateZ(0);
  will-change: transform;
  transition: none !important;
}

/* --- Logo-Zitter-Fix (stabilisieren in Edge/Chrome) --- */
.logo img {
  display: block;
  width: 120px;              /* feste Breite */
  height: auto;
  backface-visibility: hidden;
  transform: translateZ(0);
  will-change: transform;
  transition: none !important;
}

/* Stelle sicher, dass der umgebende Container nicht wackelt */
.nav-container {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

/* Verhindere Padding-Shift durch Scrollbar */
body {
  overflow-y: scroll;
}

/* Dropdown für Verein */
.main-nav .has-dropdown {
  position: relative;
}

.main-nav .has-dropdown > a::before {
  content: "▼";
  font-size: 0.65rem;
  margin-left: 0.3rem;
  opacity: 0.7;
}

.main-nav .dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: rgba(15, 23, 42, 0.97);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
  border-radius: 8px;
  padding: 0.5rem 0;
  min-width: 160px;
  list-style: none;
  margin: 0.5rem 0 0 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 100;
}

.main-nav .has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav .dropdown-menu li {
  padding: 0;
}

.main-nav .dropdown-menu a {
  padding: 0.6rem 1.2rem;
  display: block;
}

.main-nav .dropdown-menu a::after {
  display: none;
}

.main-nav .dropdown-menu a:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Mobile Navigation ab 900px */
@media (max-width: 900px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    right: 0;
    background: rgba(15, 23, 42, 0.97);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.75);
    border-radius: 24px;
    margin-top: 0.4rem;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
    min-width: 210px;
  }

  .site-header.nav-open .main-nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0.3rem;
    padding: 0.9rem 1.7rem 1.2rem;
  }

  .main-nav .has-dropdown > a::before {
    content: "›";
    float: right;
    font-size: 1.2rem;
  }

  .main-nav .dropdown-menu {
    position: static;
    background: rgba(255, 255, 255, 0.05);
    box-shadow: none;
    margin-top: 0.5rem;
    transform: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
  }

  .main-nav .has-dropdown:hover .dropdown-menu {
    max-height: 300px;
  }
}


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

@media (max-width: 900px) {
  .logo img {
    height: 84px;
  }
}

@media (max-width: 768px) {
  .two-column {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 55vh;
  }
}

@media (max-width: 480px) {
  .logo img {
    height: 72px;
  }

  .hero-content {
    padding: 3rem 0;
  }

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