@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@600;700;800&family=Inter:wght@400;500;600&display=swap');

/* ---------------- Design tokens (light = default) ---------------- */
:root {
  --green: #1F3A2A;
  --green-deep: #13261A;
  --green-secondary: #6B8F4E;
  --gold: #E8B547;
  --gold-dark: #C8973A;
  --ink: #1A1A1A;
  --gray: #6B7280;
  --border: #E7E5DE;
  --bg: #FAFAF7;
  --card: #FFFFFF;
  --card-alt: #F5F5F5;
  --ok: #6B8F4E;
  --bad: #C0503F;
  --radius: 0.875rem;
  --radius-sm: 0.5rem;
  --shadow-soft: 0 1px 2px rgba(26,26,26,.04), 0 4px 12px rgba(26,26,26,.06);
  --shadow-card: 0 2px 4px rgba(26,26,26,.06), 0 12px 32px rgba(26,26,26,.08);
  --shadow-lift: 0 8px 24px rgba(26,26,26,.12), 0 24px 64px rgba(26,26,26,.10);
}

/* Brand-true dark mode: dark-green ground, not near-black. Same token names, different values,
   so every component below is written once against the tokens and never needs a dark override. */
@media (prefers-color-scheme: dark) {
  :root {
    --green-deep: #0E1D14; --ink: #F5F3EC; --gray: #A9B0A2; --border: #2A3B2E;
    --bg: #13261A; --card: #1B3325; --card-alt: #1F3A2A;
    --shadow-soft: 0 1px 2px rgba(0,0,0,.25), 0 4px 12px rgba(0,0,0,.3);
    --shadow-card: 0 2px 4px rgba(0,0,0,.3), 0 12px 32px rgba(0,0,0,.35);
    --shadow-lift: 0 8px 24px rgba(0,0,0,.4), 0 24px 64px rgba(0,0,0,.45);
  }
}
:root[data-theme="dark"] {
  --green-deep: #0E1D14; --ink: #F5F3EC; --gray: #A9B0A2; --border: #2A3B2E;
  --bg: #13261A; --card: #1B3325; --card-alt: #1F3A2A;
  --shadow-soft: 0 1px 2px rgba(0,0,0,.25), 0 4px 12px rgba(0,0,0,.3);
  --shadow-card: 0 2px 4px rgba(0,0,0,.3), 0 12px 32px rgba(0,0,0,.35);
  --shadow-lift: 0 8px 24px rgba(0,0,0,.4), 0 24px 64px rgba(0,0,0,.45);
}
:root[data-theme="light"] {
  --green-deep: #13261A; --ink: #1A1A1A; --gray: #6B7280; --border: #E7E5DE;
  --bg: #FAFAF7; --card: #FFFFFF; --card-alt: #F5F5F5;
  --shadow-soft: 0 1px 2px rgba(26,26,26,.04), 0 4px 12px rgba(26,26,26,.06);
  --shadow-card: 0 2px 4px rgba(26,26,26,.06), 0 12px 32px rgba(26,26,26,.08);
  --shadow-lift: 0 8px 24px rgba(26,26,26,.12), 0 24px 64px rgba(26,26,26,.10);
}

/* Author-origin display rules (e.g. .card-form's display:flex) always beat the UA [hidden]
   stylesheet default regardless of specificity, since origin outranks specificity in the
   cascade — without this, toggling the `hidden` attribute on a flex/grid container does nothing. */
[hidden] { display: none !important; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; overflow-x: hidden; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  transition: background-color 200ms ease, color 200ms ease;
}
h1, h2, h3, .primary-btn, .brand-mark { font-family: 'Montserrat', sans-serif; }

button, input, a.secondary-btn { font-family: inherit; }
a { color: var(--green-secondary); }
:root[data-theme="light"] a, :root:not([data-theme="dark"]) a { color: var(--green); }

/* ---------------- Theme toggle (sun/moon) ---------------- */
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border);
  background: var(--card); color: var(--ink); cursor: pointer; flex: 0 0 auto;
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.theme-toggle:hover { transform: translateY(-1px); box-shadow: var(--shadow-soft); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* ---------------- Login ---------------- */
.login-body {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 24px; position: relative;
  background: linear-gradient(160deg, var(--green) 0%, var(--green-deep) 100%);
}
.login-body .theme-toggle { position: absolute; top: 20px; right: 20px; background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.25); color: #fff; }
.login-body .theme-toggle:hover { background: rgba(255,255,255,0.2); }
.login-card {
  background: var(--card); border-radius: 16px; padding: 40px 32px;
  width: 100%; max-width: 380px; box-shadow: var(--shadow-lift);
  text-align: center;
}
.login-card .brand-mark { justify-content: center; }
.login-card .brand-logo { height: 40px; width: auto; }
.login-form { display: flex; flex-direction: column; gap: 14px; margin-top: 28px; text-align: left; }
.login-form label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 600; color: var(--gray); }
.login-form input {
  font-size: 16px; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  min-height: 44px; background: var(--bg); color: var(--ink);
}
.login-form button {
  margin-top: 8px; min-height: 48px; border: none; border-radius: var(--radius-sm);
  background: var(--gold); color: var(--green-deep); font-weight: 700; font-size: 16px; cursor: pointer;
  transition: background-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}
.login-form button:hover { background: var(--gold-dark); transform: translateY(-1px); box-shadow: var(--shadow-soft); }

/* ---------------- Brand mark ---------------- */
.brand-mark { display: flex; align-items: center; margin: 0; }
.brand-logo { height: 32px; width: auto; display: block; }

/* ---------------- Top bar ---------------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  padding: 14px 20px; background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20; box-shadow: var(--shadow-soft);
}
.topbar-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* Health */
.health-btn {
  display: flex; align-items: center; gap: 8px; padding: 6px 12px 6px 10px;
  border: 1px solid var(--border); border-radius: 999px; background: var(--card);
  cursor: pointer; font-size: 13px; font-weight: 600; color: var(--ink); min-height: 40px;
}
.health-btn:hover { box-shadow: var(--shadow-soft); }
.health-dots { display: flex; gap: 5px; }
.health-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--gray); }
.health-dot.ok { background: var(--ok); }
.health-dot.bad { background: var(--bad); }

.health-popover {
  position: absolute; top: 64px; right: 20px; z-index: 30;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-lift); padding: 16px; width: 300px; max-width: calc(100vw - 40px);
}
.health-popover h3 { margin: 0 0 12px; font-size: 15px; }
.health-row { display: flex; align-items: flex-start; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.health-row:last-child { border-bottom: none; }
.health-row .health-dot { margin-top: 5px; }
.health-row-body { display: flex; flex-direction: column; gap: 2px; }
.health-row-name { font-weight: 700; font-size: 13px; }
.health-row-detail { font-size: 12px; color: var(--gray); }

.link-btn {
  background: none; border: none; color: var(--green-secondary); font-weight: 600; cursor: pointer;
  font-size: 14px; padding: 8px 10px; min-height: 40px; border-radius: var(--radius-sm);
}
.link-btn:hover { background: var(--card-alt); }

/* ---------------- Progress rail ---------------- */
.progress-rail { position: sticky; top: 69px; z-index: 19; background: var(--card); padding: 10px 20px 14px; border-bottom: 1px solid var(--border); }
.progress-track { height: 6px; border-radius: 3px; background: var(--border); overflow: hidden; }
.progress-fill { height: 100%; width: 0%; background: var(--gold); transition: width 0.4s ease; }
.progress-label { margin-top: 8px; font-size: 13px; color: var(--gray); font-weight: 500; }

/* ---------------- Main / windows ---------------- */
.app-main { max-width: 900px; margin: 0 auto; padding: 24px 16px 60px; width: 100%; }
.window h2 { font-size: 22px; margin: 0 0 6px; }
.section-intro { color: var(--gray); margin: 0 0 16px; }

.mode-toggle { display: flex; gap: 8px; margin-bottom: 20px; }
.mode-btn {
  flex: 1; min-height: 48px; border: 1px solid var(--border); background: var(--card);
  border-radius: var(--radius-sm); font-weight: 700; font-size: 15px; cursor: pointer; color: var(--gray);
  transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}
.mode-btn.active { background: var(--green); color: #fff; border-color: var(--green); }
.mode-btn:hover { transform: translateY(-1px); }

.card-form {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; display: flex; flex-direction: column; gap: 18px; box-shadow: var(--shadow-card);
}
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field-grid.four-up { grid-template-columns: repeat(2, 1fr); }
.field-grid label, .card-form > label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; font-weight: 600; color: var(--gray); }
.field-grid .span-2, .span-full { grid-column: 1 / -1; }
input[type="text"], input[type="url"], input[type="number"], input[type="password"] {
  font-size: 16px; padding: 11px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  min-height: 44px; width: 100%; background: var(--bg); color: var(--ink);
}

.keyword-source { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.keyword-source legend { font-weight: 700; padding: 0 6px; }
.radio-row { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px; min-height: 44px; }
.radio-row input { width: 18px; height: 18px; }
.manual-keywords { margin-left: 26px; }

.derive-panel { margin-left: 26px; display: flex; flex-direction: column; gap: 12px; }
.derive-thinking { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; color: var(--green-secondary); }
.spinner {
  width: 18px; height: 18px; border-radius: 50%; flex: 0 0 auto;
  border: 3px solid var(--border); border-top-color: var(--gold);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2.4s; } }

.grid-override summary, .advanced-override summary { cursor: pointer; font-weight: 600; font-size: 14px; padding: 8px 0; min-height: 44px; display: flex; align-items: center; }
.grid-override { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 14px; }
.advanced-override { margin-top: 10px; }
.readout { font-size: 13px; color: var(--green-secondary); font-weight: 700; margin: 4px 0 0; }
.grid-override-actions { display: flex; justify-content: flex-end; margin-top: 10px; }
.reset-btn {
  background: none; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--gray);
  font-weight: 600; font-size: 13px; cursor: pointer; padding: 6px 12px; min-height: 36px;
}
.reset-btn:hover { color: var(--bad); border-color: var(--bad); }

.card-form label.toggle-row { display: flex; flex-direction: row; align-items: center; gap: 10px; font-size: 14px; font-weight: 500; min-height: 44px; }
.toggle-row input { width: 20px; height: 20px; flex: 0 0 auto; }

.primary-btn {
  min-height: 48px; border: none; border-radius: var(--radius-sm); background: var(--gold); color: var(--green-deep);
  font-weight: 700; font-size: 15px; cursor: pointer; padding: 0 20px;
  transition: background-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}
.primary-btn:hover { background: var(--gold-dark); transform: translateY(-1px); box-shadow: var(--shadow-soft); }
.primary-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.secondary-btn {
  min-height: 48px; border: 1px solid var(--green); border-radius: var(--radius-sm); background: transparent; color: var(--green);
  font-weight: 700; font-size: 15px; cursor: pointer; padding: 0 20px; text-decoration: none; display: inline-flex; align-items: center; justify-content: center;
  transition: background-color 180ms ease, transform 180ms ease;
}
:root[data-theme="dark"] .secondary-btn { border-color: var(--gold); color: var(--gold); }
.secondary-btn:hover { background: var(--card-alt); transform: translateY(-1px); }

/* Keyword rows (shared: derive list) */
.checkpoint-keywords { display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.keyword-row { display: flex; align-items: center; gap: 10px; background: var(--card-alt); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; }
.keyword-row input { flex: 1; border: none; font-size: 15px; font-weight: 600; min-height: 32px; background: transparent; }
.keyword-row button { background: none; border: none; color: var(--bad); font-weight: 700; cursor: pointer; min-width: 44px; min-height: 44px; }
.checkpoint-actions { display: flex; gap: 12px; margin-top: 18px; flex-wrap: wrap; }

/* Complete */
.result-embed { width: 100%; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 20px; background: #fff; box-shadow: var(--shadow-card); }
.result-embed iframe { width: 100%; height: 60vh; min-height: 400px; border: none; display: block; }
.result-meta-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 16px; }
.meta-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px; text-align: center; box-shadow: var(--shadow-soft); }
.meta-label { font-size: 12px; color: var(--gray); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.meta-value { font-size: 20px; font-weight: 800; color: var(--green-secondary); margin-top: 4px; font-variant-numeric: tabular-nums; }
:root:not([data-theme="dark"]) .meta-value { color: var(--green); }
.cost-breakdown { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; margin-bottom: 20px; box-shadow: var(--shadow-soft); }
.cost-row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 14px; border-bottom: 1px solid var(--border); font-variant-numeric: tabular-nums; }
.cost-row:last-child { border-bottom: none; font-weight: 700; }
.cost-row .est-tag { font-size: 11px; color: var(--gray); margin-left: 6px; }
.result-actions { display: flex; gap: 12px; margin-bottom: 32px; flex-wrap: wrap; }

.history-section { margin-top: 28px; }
.history-section h3 { font-size: 16px; margin-bottom: 10px; }
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); -webkit-overflow-scrolling: touch; }
.log-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 480px; }
.log-table th { background: var(--green); color: #fff; text-align: left; padding: 8px 10px; position: sticky; top: 0; }
.log-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.log-table td.wrap { white-space: normal; }
.status-success { color: var(--ok); font-weight: 700; }
.status-failed { color: var(--bad); font-weight: 700; }

.form-error { color: var(--bad); font-size: 13px; margin: 0; }

dialog { border: none; border-radius: var(--radius); padding: 24px; max-width: 380px; width: 90vw; background: var(--card); color: var(--ink); box-shadow: var(--shadow-lift); }
dialog::backdrop { background: rgba(0,0,0,0.5); }

/* ---------------- Mobile (iPhone primary target) ---------------- */
@media (max-width: 600px) {
  .topbar { padding: 12px 14px; }
  .brand-logo { height: 26px; }
  .app-main { padding: 16px 12px 48px; }
  .field-grid, .field-grid.four-up { grid-template-columns: 1fr; }
  .result-meta-grid { grid-template-columns: 1fr; }
  .checkpoint-actions, .result-actions { flex-direction: column; }
  .checkpoint-actions > *, .result-actions > * { width: 100%; }
  .mode-toggle { flex-direction: row; }
  .health-popover { right: 12px; left: 12px; width: auto; }
}