/* RESET */
* { box-sizing: border-box; margin: 0; padding: 0; }

/* BASE */
body {
  font-family: "Segoe UI", sans-serif;
  background-color: #f4f6f8;
  color: #333;
}

/* LAYOUT */
.layout { display: flex; min-height: 100vh; }

/* SIDEBAR (sabit) */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 220px;
  background-color: #2b2b2b;
  padding: 2rem 1rem;
  overflow-y: auto;
  z-index: 1000;
  box-shadow: 1px 0 0 rgba(0,0,0,.08);
}
.sidebar .logo img { width: 100%; margin-bottom: 2rem; display: block; }
.sidebar nav a {
  display: block;
  color: #ccc;
  text-decoration: none;
  margin: 1rem 0;
  padding: 0.5rem;
  border-radius: 4px;
  transition: background 0.2s, color .2s;
}
.sidebar nav a.active,
.sidebar nav a:hover { background-color: #2e2e4d; color: #fff; }

/* MAIN (sidebar genişliğince sağa kaydır) */
.main {
  flex: 1;
  padding: 3rem;
  margin-left: 220px;
  padding-bottom: 84px; /* footer çakışmasın */
}

/* FORMS / CARDS */
.form-container {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  max-width: 600px;
  margin: auto;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
}
.form-container h2 { margin-bottom: 1.5rem; color: #222; }
.input-group { margin-bottom: 1rem; }
.input-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
.input-group input, .input-group select {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}
.row { display: flex; gap: 1rem; }
.row .input-group { flex: 1; }

button {
  background-color: #007bff; color: white; border: none;
  padding: 0.7rem 1.5rem; border-radius: 4px; cursor: pointer;
  font-weight: 600; margin-top: 1rem;
}
button:hover { background-color: #0056b3; }

.inbox {
  margin-top: 2rem; background: #f0f0f0; padding: 1rem; border-radius: 6px;
}
.inbox h3 { margin-bottom: 0.5rem; }

#copy-btn {
  margin-top: 0.5rem; padding: 0.5rem 1rem;
  background: #28a745; color: white; border: none; border-radius: 4px; cursor: pointer;
}
#copy-btn:hover { background: #218838; }

.how-to-use {
  max-width: 700px; margin: 40px auto; padding: 25px;
  background-color: #ffffff; border: 1px solid #ddd; border-radius: 8px;
  color: #111111; font-size: 15px; line-height: 1.6;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.card {
  background: #f9f9ff; border: 1px solid #d0d0e0; border-radius: 12px;
  padding: 20px; margin-top: 20px; box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}
.card h3 { margin-top: 0; color: #333; }
.card p { margin: 8px 0; font-size: 15px; }

/* ALERTS */
.alert {
  padding: 12px 14px; border-radius: 6px; margin-bottom: 12px; font-size: 14px;
}
.alert.error {
  background:#ffe8e8; border:1px solid #f5c2c7; color:#842029;
}

/* SABİT FOOTER (sidebar’a hizalı) */
.fixed-footer {
  position: fixed;
  bottom: 0;
  left: 220px;  /* sidebar genişliği ile senkron */
  right: 0;
  height: 56px;
  background: #222;
  color: #ccc;
  display: flex; align-items: center; justify-content: center;
  padding: 0 16px; font-size: 14px; z-index: 900;
  box-shadow: 0 -1px 0 rgba(0,0,0,.08);
}

/* RESPONSIVE */
@media (max-width: 900px){
  .sidebar{ width:200px; }
  .main{ margin-left:200px; }
  .fixed-footer{ left:200px; }
}
@media (max-width: 720px){
  .sidebar{ width:180px; }
  .main{ margin-left:180px; padding: 2rem 1.25rem 84px; }
  .fixed-footer{ left:180px; }
}