/* ===================================================================
   COBBS Certificate Console — clean, modern, light
   Warm off-white surfaces · near-black text · olive/khaki accent
   =================================================================== */
:root {
  color-scheme: light;
  --bg: #f4f3ee;
  --surface: #ffffff;
  --surface-2: #faf9f5;
  --border: #e6e3da;
  --border-strong: #d7d3c7;
  --text: #1c1b16;
  --muted: #6d6a5e;
  --faint: #9b9788;
  --accent: #6f6a44;          /* deep khaki — interactive, good contrast */
  --accent-soft: #a6a384;     /* brand khaki — highlights */
  --accent-wash: #f0eee3;
  --primary: #1c1b16;         /* near-black — primary buttons */
  --danger: #b23b2b;
  --danger-wash: #fbeeeb;
  --good: #4d7a34;
  --warn: #a9762a;
  --radius: 13px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(28,27,22,.04), 0 4px 16px -8px rgba(28,27,22,.12);
  --shadow-lift: 0 2px 4px rgba(28,27,22,.05), 0 12px 28px -12px rgba(28,27,22,.20);
  --mono: "Courier New", ui-monospace, "SFMono-Regular", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--text); }
::selection { background: rgba(166,163,132,.35); }
.muted { color: var(--muted); }
.mono, code { font-family: var(--mono); }
.label { text-transform: uppercase; letter-spacing: .09em; font-size: .68rem; color: var(--faint); font-weight: 600; }

/* ---------- Top bar ---------- */
.topbar {
  display: flex; align-items: center; gap: 2rem;
  padding: 0 1.75rem; height: 60px;
  background: rgba(255,255,255,.85); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: baseline; gap: .55rem; color: var(--text); }
.brand .mark { font-weight: 800; letter-spacing: .16em; font-size: 1.02rem; }
.brand .brand-sub { color: var(--faint); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.topbar nav { display: flex; gap: .1rem; margin-left: auto; }
.topbar nav a {
  color: var(--muted); font-weight: 500; font-size: .9rem;
  padding: .5rem .8rem; border-radius: var(--radius-sm);
}
.topbar nav a:hover { color: var(--text); background: var(--surface-2); }
.logout { color: var(--faint); font-weight: 500; font-size: .88rem; padding: .5rem .7rem; border-radius: var(--radius-sm); }
.logout:hover { color: var(--danger); background: var(--danger-wash); }

/* ---------- Layout & headings ---------- */
.container { max-width: 1000px; margin: 0 auto; padding: 2.4rem 1.75rem 5rem; }
h1 { font-weight: 700; font-size: 1.7rem; letter-spacing: -.02em; margin: 0 0 .35rem; }
h1 + .muted, .page-sub { margin-top: 0; color: var(--muted); }

/* ---------- Dashboard tiles ---------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(232px,1fr)); gap: 1.1rem; margin-top: 1.8rem; }
a.tile-link { color: inherit; }
.tile {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.35rem; min-height: 118px; box-shadow: var(--shadow);
  font-weight: 650; font-size: 1.03rem; transition: transform .14s, box-shadow .14s, border-color .14s;
}
a.tile-link .tile:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); border-color: var(--border-strong); }
.tile span { display: block; color: var(--muted); font-weight: 400; font-size: .84rem; margin-top: .45rem; }
.tile.disabled { opacity: .55; }

/* ---------- Panels ---------- */
.panel {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.6rem 1.75rem; margin-top: 1.6rem; box-shadow: var(--shadow);
}
.panel.info { background: var(--surface-2); box-shadow: none; }
.panel h2, .panel h3 { margin: 0 0 1.1rem; font-size: 1.08rem; font-weight: 680; letter-spacing: -.01em; }

/* ---------- Tables ---------- */
table.grid { width: 100%; border-collapse: collapse; font-size: .9rem; }
table.grid th {
  text-align: left; color: var(--faint); font-weight: 600; font-size: .68rem;
  letter-spacing: .08em; text-transform: uppercase; padding: .55rem .6rem;
  border-bottom: 1px solid var(--border);
}
table.grid td { padding: .6rem; vertical-align: middle; border-bottom: 1px solid var(--border); }
table.grid tbody tr:last-child td { border-bottom: none; }
table.grid tbody tr:hover td { background: var(--surface-2); }
table.grid form { display: contents; }
table.grid code, code { color: var(--accent); font-weight: 700; }
.stamp { font-family: var(--mono); color: var(--accent); font-weight: 700; letter-spacing: .02em; }

/* ---------- Inputs ---------- */
input[type=text], input[type=password], input[type=email], input[type=date],
input[type=number], input:not([type]), select, textarea {
  width: 100%; padding: .6rem .75rem; background: var(--surface); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  font-size: .92rem; font-family: inherit; transition: border-color .12s, box-shadow .12s;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(111,106,68,.16);
}
table.grid input:not([type]), table.grid input[type=text] { padding: .42rem .55rem; font-size: .85rem; }
textarea { resize: vertical; }
input[type=file] { font-size: .82rem; color: var(--muted); border: none; padding: 0; }

/* ---------- Buttons ---------- */
button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  padding: .6rem 1.15rem; background: var(--primary); color: #fff;
  border: 1px solid var(--primary); border-radius: var(--radius-sm);
  font-weight: 600; font-size: .9rem; font-family: inherit; cursor: pointer;
  text-decoration: none; transition: opacity .12s, background .12s, border-color .12s, color .12s;
}
button:hover, .btn:hover { opacity: .88; color: #fff; }
button.sm { padding: .4rem .72rem; font-size: .8rem; }
.btn-ghost, .btn.btn-ghost, button.ghost {
  background: var(--surface); color: var(--text); border-color: var(--border-strong);
}
.btn-ghost:hover, button.ghost:hover { background: var(--surface-2); color: var(--text); opacity: 1; border-color: var(--accent); }
button.danger, .btn.danger {
  background: var(--surface); color: var(--danger); border-color: #e2b8b0;
}
button.danger:hover, .btn.danger:hover { background: var(--danger-wash); color: var(--danger); opacity: 1; }

/* ---------- Forms ---------- */
.form .field, .grid-form .field { margin-bottom: 1.1rem; }
.form label, .field label, label.field-label {
  display: block; font-size: .7rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--muted); margin-bottom: .4rem; font-weight: 600;
}
.form .row { display: flex; gap: 1rem; flex-wrap: wrap; }
.form .row .field { flex: 1 1 240px; }
.small { font-size: .8rem; margin-top: .4rem; color: var(--muted); }
.add-row { display: flex; flex-wrap: wrap; gap: .55rem; align-items: center; margin-top: 1.1rem; padding-top: 1.1rem; border-top: 1px dashed var(--border-strong); }
.add-row input { width: auto; flex: 1 1 140px; }
.inline { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }

/* ---------- Session view ---------- */
.meta { display: flex; flex-wrap: wrap; gap: 1.5rem; margin: .9rem 0 1.5rem; }
.meta > span { color: var(--muted); font-size: .9rem; }
.meta strong { color: var(--text); font-weight: 650; }
.actions, .actions-bar { display: flex; gap: .7rem; margin: 1.4rem 0; flex-wrap: wrap; align-items: center; }
.back { color: var(--muted); font-size: .85rem; }
.back:hover { color: var(--accent); }

/* ---------- Login ---------- */
.login-card {
  max-width: 370px; margin: 10vh auto 0; background: var(--surface);
  border: 1px solid var(--border); border-radius: 16px; padding: 2.5rem 2.1rem;
  text-align: center; box-shadow: var(--shadow-lift);
}
.brand-lg { font-size: 1.9rem; font-weight: 800; letter-spacing: .18em; }
.tagline { color: var(--muted); margin-top: .3rem; text-transform: uppercase; letter-spacing: .13em; font-size: .72rem; }
.login-card form { margin-top: 1.9rem; display: grid; gap: 1rem; text-align: left; }
.login-card button { width: 100%; }

/* ---------- Flash / alerts ---------- */
.notice, .alert {
  padding: .7rem .9rem; border-radius: var(--radius-sm); margin-bottom: 1.1rem; font-size: .9rem;
  border: 1px solid var(--accent-soft); background: var(--accent-wash); color: #524f36;
}
.alert { border-color: #e2b8b0; background: var(--danger-wash); color: #8f3325; }

/* ---------- Misc ---------- */
.ok { color: var(--good); font-weight: 600; }
.warn { color: var(--warn); font-weight: 600; }
.pill { display: inline-flex; align-items: center; gap: .3rem; padding: .12rem .55rem; border-radius: 999px; font-size: .72rem; font-weight: 600; }
.pill.ok { background: #eef4e7; color: #4d7a34; }
.pill.warn { background: #f7edda; color: #a9762a; }
ul.tokens { line-height: 1.95; }
ul.tokens code, .callout code, p code {
  background: var(--surface-2); padding: .1rem .4rem; border-radius: 5px;
  border: 1px solid var(--border); color: var(--accent);
}
.callout { border: 1px solid var(--border); border-left: 3px solid var(--accent-soft); background: var(--surface-2); border-radius: var(--radius-sm); padding: .85rem 1rem; font-size: .87rem; color: var(--muted); }

/* ---------- Build badge (deploy marker) ---------- */
.build-badge {
  position: fixed; bottom: .9rem; right: .9rem; z-index: 50;
  font-family: var(--mono); font-size: .72rem; letter-spacing: .02em;
  color: var(--muted); background: rgba(255,255,255,.9); backdrop-filter: blur(4px);
  border: 1px solid var(--border); border-radius: 999px; padding: .28rem .7rem;
  box-shadow: var(--shadow); pointer-events: none;
}

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; height: auto; gap: .5rem; padding: .6rem 1rem; }
  .topbar nav { margin-left: 0; flex-wrap: wrap; }
  .logout { margin-left: auto; }
  .container { padding: 1.4rem 1.1rem 5rem; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }