@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;1,6..72,400&family=IBM+Plex+Mono:wght@400;500;600;700&family=Noto+Sans+Thai:wght@400;500;600;700&display=swap');

/* ── TOKENS ── */
:root {
  --black:   #0e0e0e;
  --snow:    #fdfdf9;
  --red:     #eb5939;
  --red-dim: rgba(235,89,57,.12);

  --bg:      var(--snow);
  --fg:      var(--black);
  --border:  rgba(14,14,14,.15);
  --surface: #f5f5f0;
  --muted:   rgba(14,14,14,.7);
  --dim:     rgba(14,14,14,.35);

  --f-display:  'Inter', 'Noto Sans Thai', sans-serif;
  --f-thai:     'Noto Sans Thai', 'Inter', sans-serif;
  --f-editorial:'Newsreader', 'Noto Sans Thai', serif;
  --f-mono:     'IBM Plex Mono', 'Noto Sans Thai', monospace;

  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 20px;
  --ease:      cubic-bezier(.16,1,.3,1);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: auto; }

body {
  font-family: var(--f-thai);
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  padding: 0 24px 80px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  font-size: 16px;
  line-height: 1.5;
}

/* ── NAV ── */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 0 18px;
  max-width: 1100px; margin: 0 auto;
  border-bottom: 1px solid var(--border);
}
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-mark {
  width: 28px; height: 28px; border-radius: 6px;
  background: var(--black); color: var(--snow);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700;
}
.nav-name {
  font-family: var(--f-display);
  font-size: 14px; font-weight: 700;
  color: var(--black);
}
.nav-sub {
  font-family: var(--f-mono);
  font-size: 11px; color: var(--muted);
  margin-top: 1px;
}

.wrap { max-width: 1100px; margin: 0 auto; }

/* ── HERO ── */
.hero { padding: 56px 0 44px; text-align: left; }
.hero-eyebrow {
  font-family: var(--f-mono);
  font-size: 13px; font-weight: 600;
  color: var(--red);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.hero h1 {
  font-family: var(--f-editorial);
  font-size: clamp(40px, 5.5vw, 72px);
  font-weight: 400;
  line-height: 1.05;
  margin-bottom: 18px;
  color: var(--black);
  letter-spacing: -1px;
}
.hero h1 em {
  font-style: italic;
  color: var(--red);
}
.hero-desc {
  font-family: var(--f-thai);
  font-size: 18px;
  font-weight: 500;
  color: var(--muted);
  line-height: 1.6;
  max-width: 580px;
  margin-bottom: 12px;
}

/* ── CONTROLS / SWITCH ── */
.top-controls {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 40px;
}
.source-switcher {
  display: flex; background: var(--surface); padding: 4px;
  border-radius: 30px; border: 1px solid var(--border);
}
.source-btn {
  padding: 10px 24px; border: none; background: transparent;
  font-family: var(--f-mono); font-size: 13px; font-weight: 600; color: var(--muted);
  border-radius: 25px; cursor: pointer; transition: all .2s var(--ease);
}
.source-btn:hover { color: var(--black); }
.source-btn.active {
  background: var(--black); color: var(--snow);
}

.scenario-bar { display: flex; gap: 8px; align-items: center; }
.scenario-bar select {
  font-family: var(--f-thai); padding: 8px 12px;
  border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--snow);
}
.scenario-bar button {
  font-family: var(--f-thai); font-weight: 600; font-size: 13px;
  padding: 8px 16px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--border);
  cursor: pointer; transition: all .2s; color: var(--black);
}
.scenario-bar button:hover { background: var(--border); }
.scenario-bar button.save-btn { background: var(--black); color: var(--snow); border-color: var(--black); }

/* ── LAYOUT ── */
.sec-list { display: flex; flex-direction: column; gap: 20px; margin-bottom: 40px; }
.sec-row {
  background: var(--snow);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 32px 40px;
  position: relative;
  overflow: hidden;
}
.sec-header {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 24px;
}
.sec-name-wrap { display: flex; flex-direction: column; gap: 6px; }
.sec-name {
  font-family: var(--f-display);
  font-size: 28px; font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -1px;
  line-height: 1;
  color: var(--black);
}
.sec-desc {
  font-family: var(--f-mono);
  font-size: 11px; font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.sec-sep { height: 1px; background: var(--black); margin-bottom: 24px; opacity: 0.15; }

.grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 40px;
  align-items: start;
}
@media(max-width: 1024px) { .grid { grid-template-columns: 1fr; } }

/* ── FORMS & FIELDS ── */
.field-group { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { margin-bottom: 20px; }
.field label {
  display: block; font-family: var(--f-mono); font-size: 11px;
  font-weight: 700; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.5px; margin-bottom: 8px;
}
.field input, .field select {
  width: 100%; padding: 12px 14px;
  font-family: var(--f-mono); font-size: 14px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); outline: none; transition: border .2s;
  color: var(--black);
}
.field input:focus, .field select:focus { border-color: var(--black); }

/* TEAM ROW */
.team-row-header {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr auto; gap: 12px;
  font-family: var(--f-mono); font-size: 10px; font-weight: 700; color: var(--muted);
  text-transform: uppercase; margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
.team-row {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr auto; gap: 12px;
  margin-bottom: 12px; align-items: center;
}
.team-row input, .team-row select { padding: 8px 10px; font-size: 13px; }
.trash-btn { background: none; border: none; font-size: 16px; cursor: pointer; color: var(--red); padding: 5px; }

.add-btn {
  background: transparent; border: 1px dashed var(--border);
  color: var(--muted); width: 100%; padding: 12px; font-family: var(--f-mono);
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  border-radius: var(--radius-sm); cursor: pointer; transition: all .2s;
  margin-bottom: 20px;
}
.add-btn:hover { border-color: var(--black); color: var(--black); background: var(--surface); }

/* PKG CARDS */
.packages-selector { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; }
.pkg-card {
  border: 1px solid var(--border); background: var(--surface);
  padding: 16px; border-radius: var(--radius-sm); text-align: center;
}
.pkg-card h4 { font-family: var(--f-display); font-size: 15px; font-weight: 700; text-transform: uppercase; margin-bottom: 4px; }
.pkg-card .price { font-family: var(--f-mono); font-size: 12px; color: var(--red); margin-bottom: 12px; }
.pkg-card input { text-align: center; font-size: 16px; font-weight: 700; background: var(--snow); }

/* ── RESULTS SIDE ── */
.results-side { position: sticky; top: 20px; }
.res-clean { background: transparent; border: none; }
.res-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 12px 0; border-bottom: 1px dotted rgba(14,14,14,.25);
}
.res-row.hi { background: transparent; border-bottom: none; border-top: 1px solid var(--border); padding-top: 16px; margin-top: 16px; }
.res-row.hi .res-val { font-size: 28px; font-weight: 700; color: var(--black); font-family: var(--f-mono); }
.res-label { font-family: var(--f-thai); font-weight: 600; font-size: 14px; color: var(--muted); }
.res-val { font-family: var(--f-mono); font-size: 15px; font-weight: 600; color: var(--black); }
.val-red { color: var(--red); }

/* WORKLOAD */
.bar-container { margin-bottom: 16px; }
.bar-header { display: flex; justify-content: space-between; font-family: var(--f-mono); font-size: 12px; font-weight: 600; margin-bottom: 6px; }
.bar-bg { background: var(--surface); height: 8px; width: 100%; border-radius: 4px; position: relative; overflow: hidden; }
.bar-fill { height: 100%; background: var(--black); transition: width .5s var(--ease); }
.status-badge { font-size: 10px; padding: 2px 6px; font-weight: 700; text-transform: uppercase; border-radius: 4px; margin-left: 8px; }
.status-badge.normal { background: var(--surface); color: var(--black); }
.status-badge.warning { background: rgba(245, 158, 11, 0.2); color: #b45309; }
.status-badge.overload { background: var(--red-dim); color: var(--red); }

/* Charts */
.charts-container { display: flex; flex-direction: column; gap: 20px; margin-top: 30px; }
.chart-wrapper { background: var(--snow); border: 1px solid var(--border); padding: 20px; border-radius: var(--radius-sm); }

/* Toggles */
.toggle-switch { position: relative; display: inline-block; width: 40px; height: 20px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--surface); transition: .4s; border-radius: 20px; border: 1px solid var(--border); }
.toggle-slider:before { position: absolute; content: ""; height: 14px; width: 14px; left: 2px; bottom: 2px; background-color: var(--muted); transition: .4s; border-radius: 50%; }
input:checked + .toggle-slider { background-color: var(--black); border-color: var(--black); }
input:checked + .toggle-slider:before { transform: translateX(20px); background-color: var(--snow); }

/* Print */
@media print {
  body { background: white; color: black; padding: 0; }
  .nav, .hero, .top-controls, .add-btn, .trash-btn, .export-btn { display: none !important; }
  .grid { grid-template-columns: 1fr; display: block; }
  .sec-row { border: none; padding: 0; }
}