/* ===========================================
   Förderverein Gleisbergschule - Stylesheet
   Farben inspiriert vom Newsletter 2024
   =========================================== */

/* CSS Reset und Grundlagen */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Hauptfarben aus Logo und Newsletter */
  --color-primary: #2C4A7C;       /* Dunkelblau */
  --color-secondary: #4A5621;     /* Olivgrün */
  --color-accent: #E6A42C;        /* Orange/Gelb */
  --color-accent-light: #F5C45A;  /* Helles Orange */
  
  /* Neutrale Farben */
  --color-white: #FFFFFF;
  --color-light: #F8F9FA;
  --color-gray: #6C757D;
  --color-dark: #333333;
  
  /* Abstände */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Schriften */
  --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-size-base: 16px;
  --line-height: 1.6;
  
  /* Breiten */
  --max-width: 1100px;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  line-height: var(--line-height);
  color: var(--color-dark);
  background-color: var(--color-white);
}

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

.site-header {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-white);
}

.logo img {
  height: 50px;
  width: auto;
  background-color: var(--color-white);
  padding: 4px;
  border-radius: 4px;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 600;
  margin-left: var(--spacing-sm);
  display: none;
}

/* Navigation */
.main-nav ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-xs);
}

.main-nav a {
  display: block;
  padding: var(--spacing-xs) var(--spacing-sm);
  color: var(--color-white);
  text-decoration: none;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  background-color: rgba(255, 255, 255, 0.15);
}

.main-nav a.active {
  border-bottom: 2px solid var(--color-accent);
}

/* ===========================================
   Haupt-Inhalt
   =========================================== */

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
}

/* Abschnitte */
.section {
  margin-bottom: var(--spacing-xl);
}

.section:last-child {
  margin-bottom: 0;
}

.section-title {
  color: var(--color-primary);
  font-size: 1.75rem;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-xs);
  border-bottom: 3px solid var(--color-accent);
  display: inline-block;
}

.section-subtitle {
  color: var(--color-secondary);
  font-size: 1.25rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

/* Hero-Bereich (Startseite) */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #3D5A8A 100%);
  color: var(--color-white);
  padding: var(--spacing-xl) var(--spacing-md);
  margin: calc(-1 * var(--spacing-lg)) calc(-1 * var(--spacing-md)) var(--spacing-xl);
  text-align: center;
}

.hero h1 {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

/* Intro-Box */
.intro-box {
  background-color: var(--color-light);
  padding: var(--spacing-lg);
  border-radius: 8px;
  border-left: 4px solid var(--color-accent);
  overflow: hidden; /* für float clearfix */
}

.intro-box p {
  margin-bottom: var(--spacing-sm);
}

.intro-box p:last-child {
  margin-bottom: 0;
}

.intro-image {
  float: right;
  width: 40%;
  max-width: 220px;
  height: auto;
  margin: 0 0 var(--spacing-xs) var(--spacing-md);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

@media (max-width: 500px) {
  .intro-image {
    width: 38%;
    max-width: 140px;
    margin: 0 0 var(--spacing-xs) var(--spacing-sm);
  }
}

/* News-Liste */
.news-list {
  list-style: none;
}

.news-list li {
  padding: var(--spacing-sm);
  border-bottom: 1px solid #eee;
  display: flex;
  gap: var(--spacing-sm);
}

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

.news-date {
  color: var(--color-gray);
  font-size: 0.9rem;
  min-width: 90px;
  flex-shrink: 0;
}

.news-text {
  flex-grow: 1;
}

/* Kontakt-Box */
.contact-box {
  background-color: var(--color-secondary);
  color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: 8px;
}

.contact-box a {
  color: var(--color-accent-light);
}

.contact-box .note {
  background-color: rgba(255, 255, 255, 0.1);
  padding: var(--spacing-sm);
  border-radius: 4px;
  margin-top: var(--spacing-md);
  font-size: 0.95rem;
}

/* Mitgliedschaft-Box */
.membership-box {
  background-color: var(--color-light);
  padding: var(--spacing-lg);
  border-radius: 8px;
}

.membership-box h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.bank-details {
  background-color: var(--color-white);
  padding: var(--spacing-md);
  border-radius: 4px;
  border: 1px solid #ddd;
  margin-top: var(--spacing-md);
}

.bank-details dt {
  font-weight: 600;
  color: var(--color-gray);
  font-size: 0.9rem;
}

.bank-details dd {
  margin-bottom: var(--spacing-xs);
  font-family: monospace;
  font-size: 1rem;
}

/* Download-Button */
.btn {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: var(--color-accent);
  color: var(--color-dark);
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
  transition: background-color 0.2s ease;
  margin-top: var(--spacing-sm);
}

.btn:hover {
  background-color: var(--color-accent-light);
}

/* ===========================================
   Projekte-Seite
   =========================================== */

.project-grid {
  display: grid;
  gap: var(--spacing-lg);
}

.project-card {
  background-color: var(--color-light);
  border-radius: 8px;
  overflow: hidden;
  border-left: 4px solid var(--color-secondary);
}

.project-card-content {
  padding: var(--spacing-md);
}

.project-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.project-card p {
  color: var(--color-gray);
}

.project-image {
  width: 100%;
  height: auto;
  display: block;
}

/* ===========================================
   Impressum-Seite
   =========================================== */

.legal-section {
  margin-bottom: var(--spacing-lg);
}

.legal-section h2 {
  color: var(--color-primary);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.legal-section h3 {
  color: var(--color-secondary);
  font-size: 1.1rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-xs);
}

.legal-section p,
.legal-section ul {
  margin-bottom: var(--spacing-sm);
}

.legal-section ul {
  padding-left: var(--spacing-md);
}

address {
  font-style: normal;
  line-height: 1.8;
}

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

.site-footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-lg) var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.footer-links {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--color-white);
  text-decoration: none;
  opacity: 0.8;
}

.footer-links a:hover {
  opacity: 1;
  text-decoration: underline;
}

.footer-copyright {
  font-size: 0.9rem;
  opacity: 0.7;
}

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

/* Tablet und größer */
@media (min-width: 600px) {
  .logo-text {
    display: block;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop */
@media (min-width: 900px) {
  .hero {
    padding: var(--spacing-xl) var(--spacing-lg);
  }
  
  .hero h1 {
    font-size: 2.75rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
}

/* Mobile Navigation Anpassungen */
@media (max-width: 500px) {
  .header-container {
    justify-content: center;
  }
  
  .main-nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .main-nav a {
    font-size: 0.9rem;
    padding: var(--spacing-xs);
  }
}