:root {
  --navy: #061e38;
  --navy-2: #0b3156;
  --ink: #10243a;
  --gold: #c9962e;
  --gold-soft: #e2bd6b;
  --paper: #f5f4ef;
  --white: #ffffff;
  --line: rgba(6, 30, 56, 0.14);
  --muted: #5b6b7a;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, Aptos, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

.brand-mark {
  color: var(--navy); font-size: 1.7rem; font-weight: 800; letter-spacing: -0.11em; line-height: 1;
}
.brand-mark.inverse { color: var(--white); }
.brand-mark > span { position: relative; }
.brand-mark > span::after {
  content: ""; position: absolute; width: .3em; height: .22em; bottom: .03em; left: .08em;
  background: var(--gold); clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

.auth-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
  background:
    linear-gradient(180deg, rgba(6,30,56,.88), rgba(6,30,56,.72)),
    url('../images/hero_skyline.jpg') center/cover;
}
.auth-card {
  width: min(440px, 100%);
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 36px 32px 32px;
}
.auth-card .eyebrow { margin: 18px 0 8px; text-transform: uppercase; letter-spacing: .12em; font-size: .7rem; font-weight: 800; color: var(--gold); }
.auth-card h1 { margin: 0 0 8px; font-size: 1.8rem; letter-spacing: -.04em; color: var(--navy); }
.auth-card p { margin: 0 0 24px; color: var(--muted); }
.auth-back { display: inline-block; margin-top: 18px; font-size: .86rem; color: var(--navy); border-bottom: 1px solid var(--gold); }

.app-shell { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--navy); color: #c9d4de; padding: 28px 20px;
  display: flex; flex-direction: column; gap: 28px;
}
.sidebar nav { display: flex; flex-direction: column; gap: 4px; }
.sidebar a {
  display: block; padding: 10px 12px; border-left: 2px solid transparent;
  font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 700;
}
.sidebar a:hover, .sidebar a.active { color: var(--white); background: rgba(255,255,255,.05); border-left-color: var(--gold); }
.sidebar .side-meta { margin-top: auto; font-size: .75rem; color: #8fa0af; }
.topbar {
  height: 72px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 28px; border-bottom: 1px solid var(--line); background: rgba(245,244,239,.94);
}
.menu-btn { display: none; border: 0; background: none; padding: 8px; }
.menu-btn span { display: block; width: 20px; height: 1px; background: var(--navy); margin: 5px 0; }
.page { padding: 28px; }
.page h1 { margin: 0 0 6px; color: var(--navy); font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -.04em; }
.page .lead { color: var(--muted); margin: 0 0 28px; }

.stats { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; margin-bottom: 28px; }
.stat, .card, .table-wrap, .form-card {
  background: var(--white); border: 1px solid var(--line);
}
.stat { padding: 20px; }
.stat span { display: block; color: var(--gold); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 800; }
.stat strong { display: block; margin-top: 10px; font-size: 1.35rem; color: var(--navy); letter-spacing: -.03em; }
.card { padding: 22px; margin-bottom: 20px; }
.card h2 { margin: 0 0 16px; font-size: 1.05rem; color: var(--navy); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
td { color: var(--ink); }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }
.actions form { margin: 0; }

.btn, .button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 42px;
  padding: 0 16px; border: 0; cursor: pointer; font-size: .78rem; font-weight: 750;
  letter-spacing: .06em; text-transform: uppercase;
}
.btn-primary { background: var(--gold); color: var(--navy); }
.btn-ghost { background: transparent; color: var(--navy); border: 1px solid var(--line); }
.btn-danger { background: transparent; color: #8a2b2b; border: 1px solid rgba(138,43,43,.25); }
.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 6px; font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 750; color: var(--navy); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid var(--line); background: var(--white); color: var(--ink);
}
.field textarea { min-height: 110px; resize: vertical; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.flash { padding: 12px 14px; margin-bottom: 18px; border: 1px solid var(--gold); color: var(--navy); background: #fff8e8; }
.flash.error { border-color: #b14a4a; background: #fff1f1; }
.badge { display: inline-block; padding: 3px 8px; font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; border: 1px solid var(--line); color: var(--navy); }
.dl { display: grid; grid-template-columns: 180px 1fr; gap: 10px 18px; }
.dl dt { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }
.dl dd { margin: 0; color: var(--navy); font-weight: 650; }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 18px; }
.empty { color: var(--muted); padding: 12px 0; }

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; inset: 0 auto 0 0; width: min(280px, 86vw); z-index: 40;
    transform: translateX(-105%); transition: transform .25s ease;
  }
  .sidebar.open { transform: none; }
  .menu-btn { display: block; }
  .stats, .grid-2, .dl { grid-template-columns: 1fr; }
  .page { padding: 20px 16px 40px; }
  .topbar { padding: 0 16px; }
}

@media (max-width: 580px) {
  .auth-card { padding: 28px 20px; }
  .stat strong { font-size: 1.15rem; }
  th, td { padding: 10px 12px; }
}