:root {
  --teal-900: #0f3d3e;
  --teal-700: #146c66;
  --teal-500: #1f9188;
  --teal-100: #e6f4f2;
  --sand-50: #faf9f6;
  --ink: #1c2b2a;
  --ink-soft: #5b6b6a;
  --border: #dde5e3;
  --danger: #c1462f;
  --white: #ffffff;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--sand-50);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--teal-700); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.sidebar {
  width: 240px;
  background: var(--teal-900);
  color: var(--white);
  padding: 24px 16px;
  flex-shrink: 0;
}
.sidebar h1 {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 4px;
  letter-spacing: 0.2px;
}
.sidebar .subtitle {
  font-size: 12px;
  color: #a9c9c6;
  margin-bottom: 28px;
}
.sidebar nav a {
  display: block;
  color: #d7ece9;
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 2px;
  font-size: 14px;
}
.sidebar nav a:hover, .sidebar nav a.active {
  background: rgba(255,255,255,0.1);
  text-decoration: none;
  color: var(--white);
}
.sidebar .logout {
  margin-top: 32px;
  font-size: 13px;
  color: #a9c9c6;
}

.main { flex: 1; padding: 32px 40px; max-width: 980px; }

.page-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 24px; }
.page-header h2 { margin: 0; font-size: 22px; }
.page-header p { color: var(--ink-soft); margin: 4px 0 0; font-size: 13px; }

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 16px;
}

.item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.item-row:last-child { border-bottom: none; }
.item-row .meta { font-size: 13px; color: var(--ink-soft); }
.item-thumb {
  width: 44px; height: 44px; border-radius: 8px; object-fit: cover;
  background: var(--teal-100); margin-right: 12px; flex-shrink: 0;
}
.item-main { display: flex; align-items: center; flex: 1; min-width: 0; }
.item-title { font-weight: 600; }
.item-actions { display: flex; gap: 8px; flex-shrink: 0; }

.btn {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--teal-500);
  background: var(--teal-500);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { background: var(--teal-700); border-color: var(--teal-700); text-decoration: none; }
.btn.secondary { background: var(--white); color: var(--teal-700); }
.btn.secondary:hover { background: var(--teal-100); }
.btn.danger { background: var(--white); color: var(--danger); border-color: var(--danger); }
.btn.danger:hover { background: #fdeeea; }
.btn.small { padding: 5px 10px; font-size: 12px; }

form.inline { display: inline; }

label { display: block; font-size: 13px; font-weight: 600; margin: 14px 0 6px; color: var(--ink); }
label:first-child { margin-top: 0; }
input[type=text], input[type=number], input[type=password], textarea, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: var(--white);
}
textarea { min-height: 90px; resize: vertical; }
input[type=file] { padding: 6px 0; }
.hint { font-size: 12px; color: var(--ink-soft); margin-top: 4px; }

.form-actions { margin-top: 22px; display: flex; gap: 10px; }

.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--teal-900);
}
.login-card {
  background: var(--white); padding: 40px 36px; border-radius: 14px; width: 320px;
}
.login-card h1 { font-size: 19px; margin: 0 0 4px; }
.login-card p { color: var(--ink-soft); font-size: 13px; margin: 0 0 24px; }
.error-msg { background: #fdeeea; color: var(--danger); padding: 10px 12px; border-radius: 8px; font-size: 13px; margin-bottom: 16px; }
.flash { background: var(--teal-100); color: var(--teal-900); padding: 10px 14px; border-radius: 8px; font-size: 13px; margin-bottom: 18px; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 28px; }
.stat-box { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.stat-box .num { font-size: 26px; font-weight: 700; color: var(--teal-700); }
.stat-box .label { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }

.badge {
  display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 999px;
  background: var(--teal-100); color: var(--teal-700); font-weight: 600;
}
.empty-state { color: var(--ink-soft); font-size: 13px; padding: 20px 0; text-align: center; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--ink-soft); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--border); }
td { padding: 10px; border-bottom: 1px solid var(--border); vertical-align: top; }