/* GOOGLE FONT & FONT AWESOME (HTML <head> kısmına eklenmeli) */
/* 
<link href="https://fonts.googleapis.com/css2?family=Amiri&family=Cairo&display=swap" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css">
*/

/* --- Modern ve Sade Tasarım İyileştirmeleri --- */
:root {
  --ana-yesil: #2F7D3A;
  --acik-yesil: #E8F5E9;
  --gri: #F5F5F5;
  --beyaz: #fff;
  --golge: 0 4px 16px rgba(47, 125, 58, 0.08);
  --radius: 14px;
  --text: #2F3E46;
  --footer-gradient: linear-gradient(90deg, var(--ana-yesil) 80%, #145944 100%);
}

body {
  margin: 0;
  font-family: 'Cairo', sans-serif;
  background: var(--gri);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* GEÇİŞ ANİMASYONLARI */
a, .kart, .etkinlik-kart, .menu-toggle, button {
  transition: all 0.3s ease;
}

/* NAVBAR */
.navbar {
  background: linear-gradient(90deg, var(--ana-yesil) 80%, #145944 100%);
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  position: relative;
  z-index: 10;
  box-shadow: var(--golge);
  border-radius: 0 0 var(--radius) var(--radius);
}

.site-title {
  font-weight: bold;
  font-size: 1.1rem;
}

.menu-toggle {
  font-size: 1.6rem;
  cursor: pointer;
  color: #fff;
  background: rgba(47, 125, 58, 0.85);
  border: 2px solid #fff;
  border-radius: 8px;
  padding: 4px 12px;
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(47, 125, 58, 0.10);
}
.menu-toggle:hover {
  color: #fff;
  background: #145944;
  border-color: #fff;
}

.menu {
  list-style: none;
  position: absolute;
  top: 60px;
  right: 20px;
  background-color: #2F7D3A;
  padding: 10px;
  border-radius: 6px;
  display: none;
  flex-direction: column;
  box-shadow: var(--golge);
  border-radius: var(--radius);
}

.menu.active {
  display: flex;
}

.menu li {
  margin: 8px 0;
}

.menu a {
  color: #fff;
  background: rgba(47, 125, 58, 0.85);
  border: 1.5px solid #fff;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 8px;
  margin: 2px 0;
  display: block;
  box-shadow: 0 2px 8px rgba(47, 125, 58, 0.10);
  transition: background 0.2s, color 0.2s, border 0.2s;
}
.menu a:hover {
  background: #fff;
  color: var(--ana-yesil);
  border: 1.5px solid var(--ana-yesil);
}

/* HEADER BAŞLIK */
header h1.baslik {
  font-family: 'Amiri', serif;
  font-size: 2rem;
  letter-spacing: 1px;
  margin: 24px auto 18px auto;
  text-align: center;
  color: var(--ana-yesil);
  background: var(--beyaz);
  border-radius: var(--radius);
  box-shadow: var(--golge);
  padding: 18px 0;
  max-width: 95vw;
}

/* DUYURULAR BÖLÜMÜ */
.duyurular {
  background-color: #F1F8E9;
  padding: 25px 20px;
  max-width: 800px;
  margin: 30px auto;
  border-radius: 10px;
  text-align: left;
}

.duyurular h2 {
  color: #2F7D3A;
  margin-bottom: 15px;
  text-align: center;
  font-size: 1.3rem;
}

.duyurular ul {
  list-style: none;
  padding-left: 0;
}

.duyurular li {
  margin-bottom: 8px;
  font-size: 1rem;
}

.tum-duyurular {
  display: block;
  margin-top: 15px;
  text-align: center;
  color: #2F7D3A;
  font-weight: bold;
  text-decoration: none;
  background: var(--ana-yesil);
  color: var(--beyaz);
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--golge);
  transition: background 0.18s, color 0.18s, box-shadow 0.18s;
}
.tum-duyurular:hover {
  background: #145944;
  color: var(--beyaz);
  box-shadow: 0 8px 24px rgba(47, 125, 58, 0.13);
}

/* SINIF SEÇİMİ */
.sinif-secimi {
  padding: 30px 20px;
  text-align: center;
}

.sinif-secimi h2 {
  margin-bottom: 20px;
  color: #2F7D3A;
  font-size: 1.3rem;
}

.siniflar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  max-width: 800px;
  margin: auto;
}

.kart, .sinif-kart, .etkinlik-kart, .duyuru-kart {
  background: var(--beyaz);
  border: 1.5px solid var(--acik-yesil);
  border-radius: var(--radius);
  box-shadow: var(--golge);
  transition: transform 0.18s, box-shadow 0.18s, background 0.18s, color 0.18s;
}
.kart:hover, .sinif-kart:hover, .etkinlik-kart:hover, .duyuru-kart:hover {
  background: var(--acik-yesil);
  color: var(--ana-yesil);
  transform: scale(1.03) translateY(-2px);
  box-shadow: 0 8px 24px rgba(47, 125, 58, 0.13);
}

/* ETKİNLİK KARTLARI */
.etkinlik-galeri {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: 900px;
  margin: 40px auto;
  padding: 20px;
}

@media screen and (min-width: 768px) {
  .etkinlik-galeri {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

.etkinlik-kart {
  background-color: #E8F5E9;
  border: 2px solid #2F7D3A;
  padding: 25px;
  border-radius: 12px;
  text-align: center;
}

.etkinlik-kart:hover {
  background-color: #2F7D3A;
  color: white;
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(47, 125, 58, 0.3);
}

.etkinlik-kart a {
  display: inline-block;
  margin-top: 10px;
  font-weight: bold;
  color: #2F7D3A;
  text-decoration: none;
}

.etkinlik-kart:hover a {
  color: white;
}

/* FOOTER */
footer {
  background: linear-gradient(90deg, var(--ana-yesil) 80%, #145944 100%);
  color: white;
  text-align: center;
  padding: 20px 15px;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-top: auto;
  border-radius: var(--radius) var(--radius) 0 0;
  box-shadow: var(--golge);
}

/* Duyuru kartına renkli şerit */
.duyuru-kart {
  position: relative;
  overflow: hidden;
}
.duyuru-kart::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 6px;
  background: linear-gradient(var(--ana-yesil), #145944);
  border-radius: 6px 0 0 6px;
}

/* Menü açılış animasyonu */
.menu {
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}
.menu.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* RESPONSIVE NAVBAR */
@media screen and (max-width: 480px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .menu-toggle {
    align-self: flex-end;
  }
}

/* --- Mobil Uyumlu Eklemeler --- */
@media screen and (max-width: 600px) {
  body {
    font-size: 15px;
    padding: 0;
  }
  .navbar {
    flex-direction: column;
    align-items: stretch;
    padding: 10px 8px;
  }
  .site-title {
    font-size: 1rem;
    text-align: center;
    margin-bottom: 8px;
  }
  .menu {
    right: 8px;
    top: 48px;
    width: 90vw;
    min-width: unset;
    padding: 8px;
  }
  header h1.baslik {
    font-size: 1.1rem;
    margin: 12px auto;
  }
  .siniflar, .sinif-kartlar {
    grid-template-columns: 1fr !important;
    gap: 12px;
    max-width: 98vw;
    padding: 0 2vw;
  }
  .kart, .sinif-kart, .etkinlik-kart, .duyuru-kart {
    padding: 12px;
    font-size: 1em;
  }
  .duyurular, .etkinlik-galeri {
    padding: 10px 2vw;
    margin: 16px auto;
    max-width: 99vw;
  }
  footer {
    padding: 12px 5px;
    font-size: 0.9rem;
  }
}

/* --- Tema Renkleri (Açık/Koyu) --- */
:root {
  --ana-yesil: #2F7D3A;
  --acik-yesil: #E8F5E9;
  --gri: #F5F5F5;
  --beyaz: #fff;
  --golge: 0 4px 16px rgba(47, 125, 58, 0.08);
  --radius: 14px;
  --text: #2F3E46;
  --footer-gradient: linear-gradient(90deg, var(--ana-yesil) 80%, #145944 100%);
}

body {
  background: var(--gri);
  color: var(--text);
}

.navbar, footer {
  background: var(--footer-gradient);
}

.menu, .kart, .sinif-kart, .etkinlik-kart, .duyuru-kart, header h1.baslik {
  background: var(--beyaz);
  color: var(--text);
}

.menu a:hover, .kart:hover, .sinif-kart:hover, .etkinlik-kart:hover, .duyuru-kart:hover {
  background: var(--acik-yesil);
  color: var(--ana-yesil);
}

button, .tum-duyurular, .menu-toggle {
  background: var(--ana-yesil);
  color: var(--beyaz);
}

button:hover, .tum-duyurular:hover, .menu-toggle:hover {
  background: #145944;
  color: var(--beyaz);
}

/* Tema geçişi için yumuşak animasyon */
body, .navbar, footer, .menu, .kart, .sinif-kart, .etkinlik-kart, .duyuru-kart, header h1.baslik {
  transition: background 0.3s, color 0.3s;
}

/* --- Admin Paneli Modern Kart Tasarımı --- */
.admin-panel {
  max-width: 1100px;
  margin: 40px auto;
  padding: 0 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
}
.admin-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(47, 125, 58, 0.10);
  padding: 32px 28px 24px 28px;
  flex: 1 1 320px;
  min-width: 320px;
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.admin-card h2 {
  margin-top: 0;
  margin-bottom: 18px;
  font-size: 1.35rem;
  color: var(--ana-yesil);
  letter-spacing: 0.5px;
  text-align: left;
}
.admin-card form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.admin-card label {
  font-weight: 600;
  margin-bottom: 2px;
}
.admin-card input,
.admin-card select,
.admin-card textarea {
  border-radius: 8px;
  border: 1.5px solid #e0e0e0;
  padding: 10px;
  font-size: 1em;
  margin-bottom: 6px;
}
.admin-card button {
  align-self: flex-end;
  background: var(--ana-yesil);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 22px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.18s;
}
.admin-card button:hover {
  background: #145944;
}
.admin-card .onizleme {
  background: #f9f9f9;
  border-radius: 8px;
  padding: 14px;
  min-height: 40px;
  font-size: 1em;
  color: #333;
  margin-top: 8px;
}
.admin-card .islemler {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}
@media (max-width: 900px) {
  .admin-panel {
    flex-direction: column;
    gap: 24px;
    align-items: center;
  }
  .admin-card {
    max-width: 98vw;
    min-width: unset;
  }
}