/* Snow Fox AI identity — tokens from the brand kit, page-specific rules below. */
:root {
  --sf-navy: #1D1D56;
  --sf-purple: #4C02E0;
  --sf-violet: #8E42FF;
  --sf-lavender: #EEE8FF;
  --sf-white: #FFFFFF;
  --sf-offwhite: #FAFAFC;
  --sf-border: #E4E2F0;
  --sf-muted: #6B6B8A;
  --sf-green: #0E9F6E;
  --sf-yellow: #C77700;
  --sf-red: #D62B4E;
  --sf-gradient: linear-gradient(135deg, #4C02E0 0%, #8E42FF 100%);
  --sf-font-head: 'Montserrat', system-ui, sans-serif;
  --sf-font-body: 'Inter', system-ui, sans-serif;
  --sf-radius: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sf-font-body);
  font-size: 15px;
  line-height: 1.55;
  color: var(--sf-navy);
  background: var(--sf-white);
}
a { color: var(--sf-purple); }
h2, h3 { font-family: var(--sf-font-head); font-weight: 600; margin: 0; }
h2 { font-size: 22px; margin: 48px 0 16px; }
h3 { font-size: 15px; margin: 24px 0 8px; }
p { margin: 0 0 12px; }

/* ---- brand primitives ---- */
.sf-title {
  font-family: var(--sf-font-head);
  font-weight: 600;
  font-size: 38px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--sf-navy);
  margin: 0;
}
.sf-title::after {
  content: '';
  display: block;
  width: 72px;
  height: 3px;
  background: var(--sf-gradient);
  border-radius: 2px;
  margin-top: 12px;
}
.sf-title--sm { font-size: 28px; }
.sf-footer {
  font-size: 12px;
  color: var(--sf-violet);
  border-top: 1px solid var(--sf-border);
  padding: 12px 32px;
  display: flex;
  justify-content: space-between;
  max-width: 1200px;
  margin: 64px auto 24px;
}
.sf-footer::before { content: 'IA que funciona. Impacto que permanece.'; }

/* ---- layout ---- */
.topbar {
  height: 56px;
  border-bottom: 1px solid var(--sf-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  background: var(--sf-white);
  z-index: 5;
}
.brand img { height: 26px; display: block; }
.topbar nav { display: flex; gap: 24px; }
.topbar nav a { color: var(--sf-navy); text-decoration: none; font-weight: 500; }
.topbar nav a:hover { color: var(--sf-purple); }

main { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.section { padding-top: 56px; }
.client { color: var(--sf-purple); font-weight: 600; margin-bottom: 12px; }
.lead { font-size: 17px; max-width: 760px; margin: 20px 0 32px; }

.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.feature { border: 1px solid var(--sf-border); border-radius: var(--sf-radius); padding: 20px; }
.feature svg { width: 22px; height: 22px; fill: none; stroke: var(--sf-purple); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.feature h3 { margin: 12px 0 6px; }
.feature p { color: var(--sf-muted); font-size: 14px; margin: 0; }

.steps { max-width: 760px; padding-left: 20px; margin: 0; }
.steps li { margin-bottom: 8px; }

/* ---- tabs ---- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--sf-border); margin: 24px 0 20px; }
.tab {
  font: inherit; font-weight: 500; color: var(--sf-muted);
  background: none; border: 0; border-bottom: 2px solid transparent;
  padding: 10px 14px; margin-bottom: -1px; cursor: pointer;
}
.tab:hover { color: var(--sf-navy); }
.tab.active { color: var(--sf-purple); border-bottom-color: var(--sf-purple); }
.panel { display: none; }
.panel.active { display: block; }
.hint { color: var(--sf-muted); max-width: 820px; }

/* ---- controls ---- */
.btn {
  font: inherit; font-weight: 500; color: #fff; background: var(--sf-purple);
  border: 1px solid var(--sf-purple); border-radius: var(--sf-radius); padding: 8px 16px; cursor: pointer;
}
.btn:hover { background: #3f00bd; }
.btn:disabled { opacity: .5; cursor: default; }
.btn--secondary { color: var(--sf-navy); background: #fff; border-color: var(--sf-border); }
.btn--secondary:hover { background: var(--sf-offwhite); }
select, input[type=file] {
  font: inherit; color: var(--sf-navy); border: 1px solid var(--sf-border); border-radius: var(--sf-radius);
  padding: 7px 10px; background: #fff;
}
select:focus, input:focus { outline: 2px solid var(--sf-violet); outline-offset: 1px; }
label { font-weight: 500; display: block; }
.row { display: flex; gap: 8px; align-items: center; margin-top: 6px; }

/* ---- bill panel ---- */
.samples { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 16px 0; }
.sample {
  text-align: left; font: inherit; color: var(--sf-navy); background: #fff; cursor: pointer;
  border: 1px solid var(--sf-border); border-radius: var(--sf-radius); padding: 14px 16px;
}
.sample:hover { border-color: var(--sf-violet); }
.sample strong { display: block; font-weight: 600; }
.sample span { color: var(--sf-muted); font-size: 14px; }
.upload { margin: 20px 0; }
.status { margin: 16px 0; color: var(--sf-muted); }
.status.error { color: var(--sf-red); }

.result { border-top: 1px solid var(--sf-border); padding-top: 24px; margin-top: 24px; }
.result .meta { color: var(--sf-muted); font-size: 13px; margin-bottom: 8px; }
.result h2.title { margin: 0 0 4px; font-size: 24px; }
.result .ementa { color: var(--sf-muted); font-style: italic; margin-bottom: 20px; }
.cols { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; }
.result ul { padding-left: 20px; margin: 0 0 12px; }
.result li { margin-bottom: 6px; }

.stance { border: 1px solid var(--sf-border); border-radius: var(--sf-radius); padding: 20px; }
.stance-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.stance-head h3 { margin: 0; }
.badge {
  display: inline-block; font-size: 13px; font-weight: 600; padding: 2px 8px; border-radius: 4px;
  color: #fff; background: var(--sf-muted);
}
.badge.favorável { background: var(--sf-green); }
.badge.contrária { background: var(--sf-red); }
.badge.mista { background: var(--sf-yellow); }
.badge.neutra { background: var(--sf-muted); }
.conf { color: var(--sf-muted); font-size: 13px; }
.stance-items { margin-top: 16px; border-top: 1px solid var(--sf-border); }
.stance-item { padding: 12px 0; border-bottom: 1px solid var(--sf-border); }
.stance-item .top { display: flex; gap: 10px; align-items: baseline; }
.stance-item .top strong { font-weight: 600; }
.stance-item p { margin: 6px 0 0; font-size: 14px; }
.stance-item blockquote { margin: 6px 0 0; padding-left: 10px; border-left: 2px solid var(--sf-lavender); color: var(--sf-muted); font-size: 13px; }
.glossary dt { font-weight: 600; margin-top: 8px; }
.glossary dd { margin: 0; color: var(--sf-muted); font-size: 14px; }

/* ---- live panel ---- */
.live-controls { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; margin: 16px 0; }
.live-controls label { font-size: 14px; }
.live-controls select { display: block; margin-top: 4px; min-width: 360px; }
.state { color: var(--sf-muted); font-size: 14px; padding-bottom: 8px; }
.state.on { color: var(--sf-green); }
.state.err { color: var(--sf-red); }

.live { display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px; }
.player video { width: 100%; background: #000; border-radius: var(--sf-radius); display: block; }
.player[hidden] { display: none; }
.credit { color: var(--sf-muted); font-size: 12px; margin-top: 6px; }

.transcript {
  height: 360px; overflow-y: auto; border: 1px solid var(--sf-border); border-radius: var(--sf-radius);
  padding: 12px 14px; font-size: 14px; background: var(--sf-offwhite);
}
.transcript p { margin: 0 0 8px; }
.transcript time { color: var(--sf-purple); font-weight: 600; font-variant-numeric: tabular-nums; margin-right: 8px; font-size: 12px; }
.transcript .partial { color: var(--sf-muted); }
.transcript .seg.hl { background: var(--sf-lavender); border-radius: 4px; }
.empty { color: var(--sf-muted); font-size: 14px; }

.bullets { padding-left: 20px; margin: 0; max-height: 320px; overflow-y: auto; }
.bullets li { margin-bottom: 8px; }
.bullets li time { color: var(--sf-purple); font-weight: 600; font-size: 12px; margin-right: 6px; font-variant-numeric: tabular-nums; }
.bullets li.empty { list-style: none; margin-left: -20px; }

.alerts { display: flex; flex-direction: column; gap: 8px; max-height: 260px; overflow-y: auto; }
.alert { border: 1px solid var(--sf-border); border-left: 3px solid var(--sf-muted); border-radius: var(--sf-radius); padding: 10px 12px; font-size: 14px; }
.alert.favorável { border-left-color: var(--sf-green); }
.alert.contrária { border-left-color: var(--sf-red); }
.alert .top { display: flex; gap: 8px; align-items: baseline; margin-bottom: 4px; }
.alert p { margin: 0; }

.jargon { margin: 0; max-height: 260px; overflow-y: auto; }
.jargon dt { font-weight: 600; margin-top: 6px; }
.jargon dd { margin: 0; color: var(--sf-muted); font-size: 14px; }

/* ---- positions ---- */
.positions { width: 100%; border-collapse: collapse; font-size: 14px; }
.positions th { text-align: left; font-weight: 600; border-bottom: 1px solid var(--sf-border); padding: 8px; }
.positions td { padding: 10px 8px; border-bottom: 1px solid var(--sf-border); vertical-align: top; }
.positions td:first-child { color: var(--sf-purple); font-weight: 600; white-space: nowrap; }
.positions td:last-child { color: var(--sf-muted); }
.positions td strong { display: block; }

@media (max-width: 900px) {
  .topbar, main { padding-left: 16px; padding-right: 16px; }
  .topbar nav { gap: 14px; font-size: 14px; }
  .sf-title { font-size: 28px; }
  .features, .samples { grid-template-columns: 1fr 1fr; }
  .cols, .live { grid-template-columns: 1fr; }
  .live-controls select { min-width: 0; width: 100%; }
}
@media (max-width: 560px) {
  .features, .samples { grid-template-columns: 1fr; }
}