:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --link: #0066cc;
  --border: #cccccc;
  --btn-bg: #0066cc;
  --btn-fg: #ffffff;
  --header-bg: #f5f5f5;
  --durum-acik: #28a745;
  --durum-yanitlandi: #ffc107;
  --durum-kapali: #6c757d;
  --mesaj-oyuncu: #e9ecef;
  --mesaj-destek: #d1ecf1;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a1a;
    --fg: #e0e0e0;
    --link: #4da6ff;
    --border: #444444;
    --btn-bg: #0066cc;
    --btn-fg: #ffffff;
    --header-bg: #2a2a2a;
    --durum-acik: #28a745;
    --durum-yanitlandi: #ffc107;
    --durum-kapali: #6c757d;
    --mesaj-oyuncu: #2a2a2a;
    --mesaj-destek: #1c3d47;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--fg);
  background: var(--bg);
}

header, main, footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}

header {
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  padding-top: 16px;
  padding-bottom: 16px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

nav a {
  color: var(--link);
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

main {
  padding-top: 24px;
  padding-bottom: 24px;
  min-height: 60vh;
}

footer {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  padding-bottom: 16px;
  text-align: center;
  font-size: 14px;
  color: #666;
}

h1, h2, h3 {
  margin-top: 0;
  margin-bottom: 16px;
  line-height: 1.2;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 20px;
}

p {
  margin-top: 0;
  margin-bottom: 16px;
}

a {
  color: var(--link);
}

ul {
  margin: 0 0 16px 0;
  padding-left: 24px;
}

li {
  margin-bottom: 8px;
}

form {
  margin-bottom: 24px;
}

label {
  display: block;
  margin-bottom: 16px;
  font-weight: 500;
}

input[type="text"],
select,
textarea {
  display: block;
  width: 100%;
  max-width: 100%;
  padding: 8px;
  margin-top: 4px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 16px;
  color: var(--fg);
  background: var(--bg);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

button {
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
}

button:hover {
  opacity: 0.9;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#hata {
  padding: 12px;
  margin-bottom: 16px;
  border-radius: 4px;
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

#hata:empty {
  display: none;
}

#hata.basari {
  background: #d4edda;
  color: #155724;
  border-color: #c3e6cb;
}

.kapali {
  padding: 16px;
  margin-bottom: 24px;
  color: #664d03;
  background: #fff3cd;
  border: 1px solid #ffc107;
  border-radius: 4px;
}

.bos {
  padding: 16px;
  text-align: center;
  color: #666;
}

.talep {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 16px;
  margin-bottom: 24px;
  background: var(--bg);
}

.talep h3 {
  margin-top: 0;
  margin-bottom: 8px;
}

.durum {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 12px;
}

.durum.acik {
  background: var(--durum-acik);
  color: white;
}

.durum.yanitlandi {
  background: var(--durum-yanitlandi);
  color: black;
}

.durum.kapali {
  background: var(--durum-kapali);
  color: white;
}

.mesaj {
  padding: 12px;
  margin-bottom: 12px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.mesaj.oyuncu {
  background: var(--mesaj-oyuncu);
}

.mesaj.destek {
  background: var(--mesaj-destek);
}

.mesaj p {
  margin: 0 0 8px 0;
}

.mesaj time {
  font-size: 12px;
  color: #666;
}

.yanit {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.yanit textarea {
  margin-bottom: 8px;
}

.g_id_signin {
  margin-bottom: 16px;
}

@media (max-width: 768px) {
  body {
    font-size: 14px;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 22px;
  }

  h3 {
    font-size: 18px;
  }

  header, main, footer {
    padding-left: 12px;
    padding-right: 12px;
  }

  nav {
    flex-direction: column;
    gap: 8px;
  }

  input[type="text"],
  select,
  textarea,
  button {
    font-size: 16px;
  }
}