:root {
  --bg: #faf6f0;
  --card: #ffffff;
  --ink: #2b241d;
  --muted: #8a7c6c;
  --accent: #b5652f;
  --accent-soft: #f1e2d1;
  --border: #e7dccb;
  --green: #4c7a4c;
  --red: #b5432f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.hidden { display: none !important; }

/* Login */
#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 32px;
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.login-box h1 {
  font-size: 22px;
  margin: 0 0 4px;
}

.login-box p.sub {
  color: var(--muted);
  margin: 0 0 24px;
  font-size: 14px;
}

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--ink);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.field { margin-bottom: 12px; text-align: left; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  font-weight: 600;
  padding: 10px 16px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
}
.btn-primary:hover { background: #9c5527; }

.btn-secondary {
  background: var(--accent-soft);
  color: var(--accent);
}

.btn-danger {
  background: transparent;
  color: var(--red);
  padding: 4px 8px;
  font-weight: 500;
}

#login-error {
  color: var(--red);
  font-size: 14px;
  font-weight: 600;
  margin-top: 10px;
  min-height: 16px;
}

/* App shell */
#app-screen {
  min-height: 100vh;
}

header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

header.topbar h1 {
  font-size: 18px;
  margin: 0;
}

nav.tabs {
  display: flex;
  gap: 4px;
  padding: 12px 24px 0;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

nav.tabs button {
  background: transparent;
  color: var(--muted);
  border-radius: 8px 8px 0 0;
  padding: 10px 16px;
}

nav.tabs button.active {
  background: var(--accent-soft);
  color: var(--accent);
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px;
}

.panel { display: none; }
.panel.active { display: block; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.summary-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}

.summary-card .label { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.summary-card .value { font-size: 22px; font-weight: 700; }
.summary-card.income .value { color: var(--green); }
.summary-card.expense .value { color: var(--red); }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; }

.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.status-aktif { background: #e3efe3; color: var(--green); }
.status-tamamlandi { background: var(--accent-soft); color: var(--accent); }
.status-beklemede { background: #f0e8d8; color: var(--muted); }

form.inline-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  align-items: end;
  margin-bottom: 16px;
}

form.inline-form .field { margin-bottom: 0; }

.section-title {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 14px;
}

.empty-state {
  color: var(--muted);
  font-size: 14px;
  padding: 20px 0;
  text-align: center;
}

.secret-cell { font-family: monospace; }