/* MAT-SA Invoice — "ledger" visual language: a working business tool that
   reads like a receipt book, not a marketing page. */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --ink: #1c2321;
  --paper: #f7f5ef;
  --paper-line: #e2ded1;
  --navy: #1f3a3d;
  --navy-dark: #14282a;
  --gold: #b8863b;
  --gold-bright: #d6a24f;
  --ok: #3c7a4f;
  --warn: #b8863b;
  --danger: #a13b2e;
  --radius: 3px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 15px;
  line-height: 1.5;
  background-image:
    linear-gradient(var(--paper-line) 1px, transparent 1px);
  background-size: 100% 2.1em;
}

a { color: var(--navy); }

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

.mono { font-family: 'IBM Plex Mono', monospace; }

/* Shell */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  background: var(--navy-dark);
  color: #e8e6df;
  flex-shrink: 0;
  padding: 24px 0;
  display: flex;
  flex-direction: column;
}

.sidebar .brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: #fff;
  padding: 0 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 12px;
}
.sidebar .brand span { color: var(--gold-bright); }

.sidebar nav a {
  display: block;
  padding: 10px 20px;
  color: #cfd3ce;
  text-decoration: none;
  font-size: 0.92rem;
  border-left: 3px solid transparent;
}
.sidebar nav a:hover { background: rgba(255,255,255,0.05); color: #fff; }
.sidebar nav a.active { border-left-color: var(--gold-bright); color: #fff; background: rgba(255,255,255,0.06); }

.sidebar .spazapos-pill {
  margin: 16px 20px 0;
  padding: 8px 10px;
  font-size: 0.75rem;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.06);
  color: #cfd3ce;
}
.sidebar .spazapos-pill.linked { background: rgba(60,122,79,0.25); color: #a9dcb8; }

.sidebar form { margin-top: auto; padding: 0 20px; }
.sidebar button.logout {
  width: 100%;
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  color: #cfd3ce;
  padding: 8px;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
}
.sidebar button.logout:hover { border-color: var(--gold-bright); color: #fff; }

main.content { flex: 1; padding: 32px 40px; max-width: 1000px; }

.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.auth-card {
  background: #fff;
  border: 1px solid var(--paper-line);
  border-top: 4px solid var(--gold);
  border-radius: var(--radius);
  padding: 36px 40px;
  width: 380px;
  box-shadow: 0 2px 16px rgba(20,40,42,0.06);
}
.auth-card h1 { font-size: 1.4rem; }
.auth-card .eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 6px;
}

label { display: block; font-size: 0.85rem; font-weight: 600; margin: 14px 0 4px; color: var(--navy-dark); }
input, select, textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid #c9c4b3;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--gold-bright); outline-offset: 1px; border-color: var(--gold); }

.btn {
  display: inline-block;
  padding: 9px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--navy);
  background: var(--navy);
  color: #fff;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--navy-dark); }
.btn.gold { background: var(--gold); border-color: var(--gold); }
.btn.gold:hover { background: var(--gold-bright); }
.btn.ghost { background: transparent; color: var(--navy); }
.btn.ghost:hover { background: rgba(31,58,61,0.06); }
.btn.danger { background: var(--danger); border-color: var(--danger); }
.btn-row { margin-top: 20px; display: flex; gap: 10px; }

.page-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 24px; }
.page-head .eyebrow { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; color: var(--gold); text-transform: uppercase; letter-spacing: 0.08em; }

.flash { padding: 10px 14px; border-radius: var(--radius); margin-bottom: 16px; font-size: 0.9rem; }
.flash.success { background: #e5f1e8; color: var(--ok); border: 1px solid #b9dcc3; }
.flash.error { background: #f6e6e3; color: var(--danger); border: 1px solid #e3b7ac; }

table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--paper-line); border-radius: var(--radius); overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--paper-line); font-size: 0.9rem; }
th { background: var(--navy); color: #fff; font-family: 'IBM Plex Mono', monospace; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 500; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #fbfaf5; }

.status-pill { display: inline-block; padding: 2px 9px; border-radius: 10px; font-size: 0.75rem; font-weight: 600; text-transform: capitalize; }
.status-draft { background: #ece9df; color: #6b6555; }
.status-sent { background: #e2ecf5; color: #2c5c8a; }
.status-paid { background: #e5f1e8; color: var(--ok); }
.status-overdue { background: #f6e6e3; color: var(--danger); }
.status-cancelled { background: #ece9df; color: #999; }

.card { background: #fff; border: 1px solid var(--paper-line); border-radius: var(--radius); padding: 20px 24px; margin-bottom: 20px; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 28px; }
.stat-card { background: #fff; border: 1px solid var(--paper-line); border-left: 3px solid var(--gold); border-radius: var(--radius); padding: 16px 18px; }
.stat-card .label { font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; color: #8a8574; margin-bottom: 6px; }
.stat-card .value { font-family: 'Space Grotesk', sans-serif; font-size: 1.5rem; font-weight: 700; color: var(--navy-dark); }

.line-items-table input { padding: 6px 8px; font-size: 0.88rem; }
.line-items-table td { vertical-align: top; }
.remove-row { background: none; border: none; color: var(--danger); cursor: pointer; font-size: 1.1rem; }

.empty-state { text-align: center; padding: 60px 20px; color: #8a8574; }
.empty-state .eyebrow { font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.08em; }

.invoice-preview { background: #fff; border: 1px solid var(--paper-line); border-radius: var(--radius); padding: 32px; }
.invoice-preview .totals { text-align: right; margin-top: 16px; }
.invoice-preview .totals .total-line { font-size: 1.3rem; font-family: 'Space Grotesk', sans-serif; font-weight: 700; color: var(--navy-dark); }

.help-text { font-size: 0.8rem; color: #8a8574; margin-top: 4px; }

@media (max-width: 800px) {
  .app-shell { flex-direction: column; }
  .sidebar { width: 100%; flex-direction: row; overflow-x: auto; padding: 10px 0; }
  .sidebar .brand { display: none; }
  .sidebar nav { display: flex; }
  .sidebar form { margin-top: 0; }
  main.content { padding: 20px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
}