/* HelpHero — Field Notes design system
   Used by all screens. Inlined in index.html. */

:root {
  /* Paper + ink */
  --bg:         oklch(96% 0.018 75);      /* warm cream paper */
  --surface:    oklch(99% 0.010 75);      /* lighter cream — cards, sheets */
  --surface-2:  oklch(94% 0.020 75);      /* warm tint — sidebars, headers */
  --border:     oklch(86% 0.018 70);      /* hairline */
  --border-strong: oklch(72% 0.022 65);   /* solid hairline for emphasis */
  --muted:      oklch(48% 0.020 60);      /* warm slate text */
  --muted-2:    oklch(62% 0.018 60);      /* fainter */
  --fg:         oklch(22% 0.020 60);      /* deep slate ink */
  --fg-soft:    oklch(30% 0.020 60);

  /* Single accent — forest green */
  --accent:     oklch(46% 0.110 145);
  --accent-2:   oklch(40% 0.110 145);
  --accent-soft: oklch(92% 0.045 145);
  --accent-ink: oklch(99% 0.010 75);

  /* Department palette — used on the scheduling grid */
  --dept-kitchen:        oklch(68% 0.130 75);   /* ochre */
  --dept-kitchen-soft:   oklch(94% 0.040 75);
  --dept-green:          oklch(50% 0.105 145);  /* forest green team */
  --dept-green-soft:     oklch(93% 0.035 145);
  --dept-hospitality:    oklch(58% 0.150 35);   /* rust */
  --dept-hospitality-soft: oklch(94% 0.040 40);
  --dept-stage:          oklch(45% 0.080 270);  /* slate-purple */
  --dept-stage-soft:     oklch(94% 0.022 270);
  --dept-site:           oklch(50% 0.075 50);   /* tan/brown */
  --dept-site-soft:      oklch(94% 0.028 50);
  --dept-medical:        oklch(48% 0.180 25);   /* deep red */
  --dept-medical-soft:   oklch(94% 0.045 25);
  --dept-welcome:        oklch(60% 0.130 85);   /* warm gold */
  --dept-welcome-soft:   oklch(94% 0.040 85);

  /* Semantic */
  --ok:         oklch(50% 0.110 145);
  --warn:       oklch(62% 0.160 75);
  --warn-soft:  oklch(95% 0.060 80);
  --danger:     oklch(48% 0.180 25);
  --danger-soft: oklch(95% 0.045 25);

  /* Typography */
  --font-display: 'Fraunces', 'Iowan Old Style', 'Charter', Georgia, serif;
  --font-body:    'Public Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'IBM Plex Mono', Menlo, monospace;

  /* Radii — soft warm, not SaaS-pill */
  --r-xs: 4px;
  --r-sm: 6px;
  --r:    10px;
  --r-lg: 14px;

  /* Spacing scale */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 48px;
  --s-8: 64px;
  --s-9: 96px;

  /* Type scale */
  --t-xs: 11px;
  --t-sm: 13px;
  --t-base: 15px;
  --t-md: 17px;
  --t-lg: 20px;
  --t-xl: 26px;
  --t-2xl: 34px;
  --t-3xl: 44px;
  --t-4xl: 58px;
  --t-5xl: 76px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--t-base);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
}

/* Subtle paper grain on the body */
body.paper {
  background-color: var(--bg);
  background-image:
    radial-gradient(oklch(20% 0.02 60 / 0.018) 1px, transparent 1px),
    radial-gradient(oklch(20% 0.02 60 / 0.012) 1px, transparent 1px);
  background-size: 22px 22px, 11px 11px;
  background-position: 0 0, 11px 11px;
}

/* Headings — Fraunces, slab-leaning */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-variation-settings: "opsz" 96, "SOFT" 50;
  color: var(--fg);
  letter-spacing: -0.012em;
  line-height: 1.05;
  margin: 0;
}

h1 { font-size: var(--t-4xl); font-variation-settings: "opsz" 144, "SOFT" 30; letter-spacing: -0.022em; }
h2 { font-size: var(--t-3xl); letter-spacing: -0.018em; }
h3 { font-size: var(--t-2xl); }
h4 { font-size: var(--t-xl); }

p { margin: 0; }

a { color: var(--accent); text-decoration: none; border-bottom: 1px solid currentColor; transition: opacity .15s ease; }
a:hover { opacity: .7; }

/* Kicker / eyebrow — mono uppercase, the field-notes signature */
.kicker {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

.serial {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.label {
  font-family: var(--font-body);
  font-size: var(--t-sm);
  font-weight: 500;
  color: var(--fg-soft);
  letter-spacing: -0.005em;
}

.muted { color: var(--muted); }
.tabular { font-variant-numeric: tabular-nums; }
.mono { font-family: var(--font-mono); }

/* ───── Buttons ───── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 10px 16px;
  font-family: var(--font-body);
  font-size: var(--t-sm);
  font-weight: 500;
  letter-spacing: -0.005em;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--fg);
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}
.btn:hover { background: var(--surface-2); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.btn.primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent-2);
}
.btn.primary:hover { background: var(--accent-2); }
.btn.danger { color: var(--danger); border-color: var(--danger); background: var(--surface); }
.btn.danger:hover { background: var(--danger-soft); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--surface-2); }
.btn.lg { padding: 14px 22px; font-size: var(--t-base); }
.btn.sm { padding: 6px 10px; font-size: var(--t-xs); }

/* ───── Forms ───── */
.field { display: flex; flex-direction: column; gap: 6px; }
.field > label { font-size: var(--t-sm); font-weight: 500; color: var(--fg-soft); }
.field > .hint { font-size: var(--t-xs); color: var(--muted); }
.field > input[type=text], .field > input[type=email], .field > input[type=tel],
.field > input[type=number], .field > input[type=date], .field > input[type=time],
.field > select, .field > textarea {
  font-family: var(--font-body);
  font-size: var(--t-base);
  color: var(--fg);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  padding: 11px 13px;
  width: 100%;
  outline: none;
  transition: border-color .15s ease, background .15s ease;
}
.field > input:focus, .field > select:focus, .field > textarea:focus {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field > textarea { resize: vertical; min-height: 80px; line-height: 1.45; }

/* Checkboxes — custom, paper-feel */
.check {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: var(--t-sm);
}
.check input { position: absolute; opacity: 0; pointer-events: none; }
.check .box {
  width: 18px; height: 18px;
  border: 1.5px solid var(--border-strong);
  border-radius: 4px;
  background: var(--surface);
  display: inline-flex;
  align-items: center; justify-content: center;
  transition: all .15s ease;
}
.check input:checked + .box {
  background: var(--accent);
  border-color: var(--accent-2);
}
.check input:checked + .box::after {
  content: '';
  width: 10px; height: 6px;
  border-left: 2px solid var(--accent-ink);
  border-bottom: 2px solid var(--accent-ink);
  transform: rotate(-45deg) translate(1px, -1px);
}

/* Card / sheet */
.sheet {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
}

/* Hairline divider */
.hr { border: 0; border-top: 1px solid var(--border); margin: var(--s-5) 0; }

/* Pills / tags */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  font-size: var(--t-xs);
  font-weight: 500;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--fg-soft);
  border: 1px solid var(--border);
  letter-spacing: -0.005em;
}
.pill.ok { background: var(--accent-soft); color: var(--accent-2); border-color: oklch(80% 0.07 145); }
.pill.warn { background: var(--warn-soft); color: oklch(40% 0.15 70); border-color: oklch(80% 0.10 75); }
.pill.danger { background: var(--danger-soft); color: var(--danger); border-color: oklch(80% 0.12 25); }

/* Dept dot — used in chips and legends */
.dept-dot {
  width: 8px; height: 8px;
  border-radius: 999px;
  display: inline-block;
  background: var(--muted);
  flex-shrink: 0;
}

/* Stamp — for kicker bars */
.stamp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  padding: 4px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--surface);
}

/* Site-wide top frame — used by all screens for consistency */
.app-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky; top: 0; z-index: 50;
}
.app-top .brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-variation-settings: "opsz" 24, "SOFT" 30;
  font-size: var(--t-md);
  letter-spacing: -0.02em;
  color: var(--fg);
  text-decoration: none;
  border: none;
}
.app-top .brand svg { width: 22px; height: 22px; }
.app-top .brand .h-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.04em;
}
.app-top nav { display: flex; align-items: center; gap: 20px; }
.app-top nav a {
  font-size: var(--t-sm);
  color: var(--fg-soft);
  border: none;
}
.app-top nav a.active { color: var(--accent); border-bottom: 1px solid var(--accent); padding-bottom: 2px; }

/* Frame wrapper for individual screens */
.screen-frame {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Footer note used on screens */
.foot-note {
  padding: 18px 28px;
  border-top: 1px solid var(--border);
  font-size: var(--t-xs);
  color: var(--muted);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: flex; justify-content: space-between; align-items: center;
  background: var(--surface);
}

@media (max-width: 720px) {
  :root {
    --t-3xl: 36px;
    --t-4xl: 44px;
  }
  .app-top { padding: 12px 16px; }
  .app-top nav { gap: 12px; }
}