/* Petron SA dashboard — Stripe-inspired finance UI.
   Tokens lifted from project DESIGN.md (Stripi-design-analysis). */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Brand & accent */
  --c-primary:        #533afd;
  --c-primary-deep:   #4434d4;
  --c-primary-press:  #2e2b8c;
  --c-primary-soft:   #665efd;
  --c-primary-sub:    #b9b9f9;
  --c-brand-dark-900: #1c1e54;
  --c-ruby:           #ea2261;
  --c-magenta:        #f96bee;
  --c-lemon:          #9b6829;

  /* Ink (text) */
  --c-ink:        #0d253d;
  --c-ink-2:      #273951;
  --c-ink-mute:   #64748d;
  --c-ink-mute-2: #61718a;

  /* Surfaces */
  --c-canvas:       #ffffff;
  --c-canvas-soft:  #f6f9fc;
  --c-canvas-cream: #f5e9d4;
  --c-hairline:     #e3e8ee;
  --c-hairline-in:  #a8c3de;

  /* Semantic (kept for KPI deltas) */
  --c-up:        #008f56;
  --c-up-bg:     #e6f7ee;
  --c-down:      var(--c-ruby);
  --c-down-bg:   #fdecf0;
  --c-warn:      #9b6829;
  --c-warn-bg:   #fff8ec;

  /* Radii */
  --r-xs:   4px;
  --r-sm:   6px;
  --r-md:   8px;
  --r-lg:   12px;
  --r-xl:   16px;
  --r-pill: 9999px;

  /* Spacing */
  --s-xxs:  2px;
  --s-xs:   4px;
  --s-sm:   8px;
  --s-md:   12px;
  --s-lg:   16px;
  --s-xl:   24px;
  --s-xxl:  32px;
  --s-huge: 64px;

  /* Elevation */
  --sh-1: 0 1px 3px rgba(0, 55, 112, 0.08);
  --sh-2: 0 8px 24px rgba(0, 55, 112, 0.08), 0 2px 6px rgba(0, 55, 112, 0.04);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: 'Inter', 'SF Pro Display', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  font-weight: 300;
  line-height: 1.4;
  color: var(--c-ink);
  background: var(--c-canvas-soft);
  font-feature-settings: "ss01", "ss02";
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-primary-deep); }

.muted { color: var(--c-ink-mute); }
.small { font-size: 13px; }

/* Numbers — tabular figures (Stripe's quiet financial signal) */
.value, .num, td.num, th.num, .delta, .pill,
.kpi-card .value, .kpi-hero .value, .insights-meta {
  font-feature-settings: "tnum", "ss01";
  font-variant-numeric: tabular-nums;
}

/* ---------- Auth screen ---------- */
.auth-bg {
  min-height: 100vh;
  background:
    radial-gradient(1100px 380px at 20% -10%, rgba(245, 233, 212, 0.55), transparent 60%),
    radial-gradient(900px 380px at 80% -20%, rgba(83, 58, 253, 0.10), transparent 60%),
    radial-gradient(900px 320px at 100% 0%, rgba(234, 34, 97, 0.10), transparent 60%),
    var(--c-canvas-soft);
  display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 24px;
}
.auth-card { background: var(--c-canvas); border: 1px solid var(--c-hairline); border-radius: var(--r-lg); padding: 40px 32px; width: 100%; max-width: 380px; box-shadow: var(--sh-1); }
.auth-card h1 { margin: 0 0 4px; font-size: 32px; font-weight: 300; letter-spacing: -0.64px; line-height: 1.1; color: var(--c-ink); }
.auth-card .muted { margin: 0 0 24px; font-size: 15px; }
.auth-card label { display: block; font-size: 11px; font-weight: 500; margin: 16px 0 6px; color: var(--c-ink-mute); text-transform: uppercase; letter-spacing: 0.06em; }
.auth-card input[type=email],
.auth-card input[type=password],
.auth-card input[type=text] { width: 100%; padding: 10px 12px; border: 1px solid var(--c-hairline-in); border-radius: var(--r-sm); font-size: 15px; font-family: inherit; color: var(--c-ink); }
.auth-card input:focus { outline: 3px solid rgba(83, 58, 253, .15); border-color: var(--c-primary); }
.auth-footer { color: var(--c-ink-mute); font-size: 13px; padding: 16px; }

.alert.error { background: var(--c-down-bg); border: 1px solid rgba(234,34,97,0.25); color: var(--c-ruby); padding: 10px 14px; border-radius: var(--r-md); margin-bottom: 8px; font-size: 13px; }
.alert.warn  { background: var(--c-warn-bg); border: 1px solid #f1d8a4; color: var(--c-warn); padding: 10px 14px; border-radius: var(--r-md); margin: 12px 0; font-size: 13px; }
.alert.info  { background: #eff3ff; border: 1px solid #d2dbff; color: var(--c-primary-deep); padding: 10px 14px; border-radius: var(--r-md); margin: 12px 0; font-size: 13px; }

/* ---------- Buttons (pill geometry) ---------- */
.btn {
  display: inline-block; padding: 8px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--c-hairline);
  background: var(--c-canvas);
  color: var(--c-ink);
  font-family: inherit; font-weight: 500; font-size: 14px; line-height: 1;
  cursor: pointer;
  transition: background .14s ease, border-color .14s ease, color .14s ease, transform .04s ease;
}
.btn:hover { border-color: #c8d0db; background: #fbfcfe; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.btn.primary:hover { background: var(--c-primary-deep); border-color: var(--c-primary-deep); }
.btn.primary:active { background: var(--c-primary-press); }
.btn.danger { background: var(--c-canvas); color: var(--c-ruby); border-color: rgba(234,34,97,0.35); }
.btn.danger:hover { background: var(--c-down-bg); }
.btn.block { display: block; width: 100%; margin-top: 24px; padding: 11px 16px; font-size: 15px; }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn.small { padding: 6px 12px; font-size: 13px; }
.link { background: none; border: none; color: var(--c-primary); cursor: pointer; padding: 0; font: inherit; font-weight: 500; }
.link:hover { color: var(--c-primary-deep); }
.inline { display: inline; }

/* ---------- Top nav ---------- */
.topnav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; background: var(--c-canvas);
  border-bottom: 1px solid var(--c-hairline);
  position: sticky; top: 0; z-index: 10;
}
.topnav .brand a {
  color: var(--c-ink);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: -0.2px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.topnav .brand a:hover { text-decoration: none; }
.brand-logo { height: 28px; width: auto; display: block; }
.topnav-links { display: flex; gap: 2px; }
.topnav-links a { color: var(--c-ink-mute); padding: 7px 12px; border-radius: var(--r-sm); font-weight: 500; font-size: 14px; }
.topnav-links a:hover { background: var(--c-canvas-soft); color: var(--c-ink); }
.topnav-links a.active { background: var(--c-canvas-soft); color: var(--c-ink); }
.topnav-user { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--c-ink-mute); }

.content { padding: 28px 24px 48px; max-width: 1320px; margin: 0 auto; }
.page-footer { text-align: center; color: var(--c-ink-mute); font-size: 13px; padding: 24px; margin-top: 40px; }

/* ---------- Page header ---------- */
.dashboard-hd { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 24px; gap: 16px; flex-wrap: wrap; }
.dashboard-hd h1 { margin: 0; font-size: 32px; font-weight: 300; line-height: 1.1; letter-spacing: -0.64px; color: var(--c-ink); }
.dashboard-hd .sub { color: var(--c-ink-mute); font-size: 13px; margin-top: 6px; }

/* ---------- AI Insights ---------- */
.insights-card {
  background: var(--c-canvas);
  border: 1px solid var(--c-hairline);
  border-radius: var(--r-lg);
  padding: 18px 22px; margin-bottom: 24px;
  box-shadow: var(--sh-1);
  position: relative; overflow: hidden;
}
.insights-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--c-canvas-cream) 0%, var(--c-lemon) 20%, var(--c-primary-soft) 50%, var(--c-primary) 70%, var(--c-ruby) 100%);
  opacity: .9;
}
.insights-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; cursor: pointer; user-select: none; }
.insights-head h3 { margin: 0; font-size: 18px; font-weight: 400; color: var(--c-ink); display: flex; align-items: center; gap: 8px; letter-spacing: -0.18px; }
.insights-head h3::before { content: "✨"; font-size: 16px; }
.insights-meta { font-size: 13px; color: var(--c-ink-mute); }
.insights-body { margin-top: 14px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.insight-item { display: flex; gap: 12px; padding: 12px 14px; border: 1px solid var(--c-hairline); border-radius: var(--r-md); background: var(--c-canvas-soft); }
.insight-item .ico { font-size: 16px; line-height: 1.4; flex-shrink: 0; }
.insight-item .body { flex: 1; min-width: 0; }
.insight-item .headline { font-weight: 500; font-size: 14px; color: var(--c-ink); margin-bottom: 2px; letter-spacing: -0.1px; }
.insight-item .evidence { font-size: 13px; color: var(--c-ink-mute); }
.insight-item[data-kind="anomaly"]      { border-color: #f1d8a4; background: var(--c-warn-bg); }
.insight-item[data-kind="forecast"]     { border-color: #d2dbff; background: #f5f6ff; }
.insight-item[data-kind="recommendation"] { border-color: #c6ebd9; background: #f1faf5; }
.insights-collapsed .insights-body { display: none; }

/* ---------- KPI hero ---------- */
.kpi-hero {
  background:
    radial-gradient(600px 220px at 100% 0%, rgba(102, 94, 253, 0.35), transparent 60%),
    radial-gradient(500px 200px at 0% 100%, rgba(234, 34, 97, 0.25), transparent 60%),
    linear-gradient(135deg, var(--c-brand-dark-900) 0%, #14164a 100%);
  color: #fff; border-radius: var(--r-lg); padding: 28px 28px;
  margin-bottom: 12px;
  display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 24px;
  box-shadow: var(--sh-2);
}
.kpi-hero .label { font-size: 11px; color: rgba(255,255,255,0.65); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 500; }
.kpi-hero .value { font-size: 48px; font-weight: 300; letter-spacing: -0.96px; margin-top: 6px; line-height: 1.05; }
.kpi-hero .delta { font-size: 14px; font-weight: 400; margin-top: 10px; color: rgba(255,255,255,0.85); }
.kpi-hero .spark-wrap { width: 260px; height: 70px; position: relative; }
.kpi-hero .delta.up   { color: #6fe7a8; }
.kpi-hero .delta.down { color: #ff97b3; }
.kpi-hero .delta .pill { background: rgba(255,255,255,0.14); color: #fff; padding: 3px 8px; border-radius: var(--r-pill); font-size: 12px; margin-right: 6px; font-weight: 500; }
@media (max-width: 700px) {
  .kpi-hero { grid-template-columns: 1fr; }
  .kpi-hero .spark-wrap { width: 100%; }
  .kpi-hero .value { font-size: 36px; letter-spacing: -0.5px; }
}

/* ---------- Secondary KPIs ---------- */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 24px; }
.kpi-card { background: var(--c-canvas); border: 1px solid var(--c-hairline); border-radius: var(--r-lg); padding: 18px 20px; transition: border-color .14s ease, box-shadow .14s ease; }
.kpi-card:hover { border-color: #c8d0db; box-shadow: var(--sh-1); }
.kpi-card .label { font-size: 11px; color: var(--c-ink-mute); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 500; }
.kpi-card .value { font-size: 26px; font-weight: 300; margin-top: 6px; color: var(--c-ink); letter-spacing: -0.26px; line-height: 1.1; }
.kpi-card .delta { font-size: 13px; margin-top: 6px; color: var(--c-ink-mute); }

.delta.up   { color: var(--c-up); }
.delta.down { color: var(--c-ruby); }
.delta.flat { color: var(--c-ink-mute); }
.delta .pill {
  background: var(--c-up-bg); color: var(--c-up);
  padding: 2px 8px; border-radius: var(--r-pill);
  font-size: 12px; margin-right: 6px; font-weight: 500;
  display: inline-block;
}
.delta.down .pill { background: var(--c-down-bg); color: var(--c-ruby); }
.delta.flat .pill { background: var(--c-canvas-soft); color: var(--c-ink-mute); }

/* ---------- Range pills + filter ---------- */
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 4px 0 14px; flex-wrap: wrap; }
.range-pills { display: inline-flex; background: var(--c-canvas); border: 1px solid var(--c-hairline); border-radius: var(--r-pill); padding: 3px; }
.range-pills button { background: none; border: none; padding: 6px 14px; font-size: 13px; color: var(--c-ink-mute); cursor: pointer; border-radius: var(--r-pill); font-family: inherit; font-weight: 500; transition: background .14s, color .14s; }
.range-pills button:hover { color: var(--c-ink); }
.range-pills button.on { background: var(--c-ink); color: #fff; }
.toolbar .right { display: flex; gap: 8px; align-items: center; color: var(--c-ink-mute); font-size: 13px; }

details.adv { background: var(--c-canvas); border: 1px solid var(--c-hairline); border-radius: var(--r-lg); margin-bottom: 18px; }
details.adv summary { padding: 12px 16px; cursor: pointer; font-size: 14px; color: var(--c-ink-2); font-weight: 500; user-select: none; }
details.adv[open] summary { border-bottom: 1px solid var(--c-hairline); }
details.adv .adv-body { padding: 16px; display: flex; gap: 16px; align-items: end; flex-wrap: wrap; }
details.adv .adv-body label { font-size: 11px; color: var(--c-ink-mute); text-transform: uppercase; letter-spacing: 0.06em; display: block; }
details.adv .adv-body input, details.adv .adv-body select { padding: 7px 11px; border: 1px solid var(--c-hairline-in); border-radius: var(--r-sm); font-size: 14px; font-family: inherit; margin-top: 6px; color: var(--c-ink); }
details.adv .adv-body input:focus, details.adv .adv-body select:focus { outline: 3px solid rgba(83, 58, 253, .15); border-color: var(--c-primary); }

/* ---------- View tabs ---------- */
.view-tabs { display: flex; gap: 4px; background: var(--c-canvas); border: 1px solid var(--c-hairline); border-radius: var(--r-pill); padding: 4px; margin: 20px 0 18px; width: fit-content; }
.view-tabs button { background: none; border: none; padding: 8px 18px; font-size: 14px; color: var(--c-ink-mute); cursor: pointer; border-radius: var(--r-pill); font-family: inherit; font-weight: 500; transition: background .14s, color .14s; }
.view-tabs button:hover { color: var(--c-ink); }
.view-tabs button.on { background: var(--c-ink); color: #fff; }
.view-pane { display: none; }
.view-pane.on { display: block; }

/* ---------- Charts ---------- */
.section-title { font-size: 11px; font-weight: 500; color: var(--c-ink-mute); text-transform: uppercase; letter-spacing: 0.08em; margin: 24px 0 12px; }
.chart-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 14px; }
.chart-grid .full { grid-column: 1 / -1; }
.chart-card { background: var(--c-canvas); border: 1px solid var(--c-hairline); border-radius: var(--r-lg); padding: 20px 22px; transition: border-color .14s ease; }
.chart-card:hover { border-color: #c8d0db; }
.chart-card h3 { margin: 0 0 14px; font-size: 15px; font-weight: 400; color: var(--c-ink); display: flex; justify-content: space-between; align-items: baseline; letter-spacing: -0.1px; }
.chart-card h3 small { font-weight: 300; color: var(--c-ink-mute); font-size: 12px; }
.chart-card .chart-wrap { position: relative; height: 280px; }
.chart-card .chart-wrap.tall { height: 340px; }

/* ---------- Tables ---------- */
.tbl-wrap { background: var(--c-canvas); border: 1px solid var(--c-hairline); border-radius: var(--r-lg); overflow: hidden; margin-top: 24px; }
.tbl-wrap header { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--c-hairline); }
.tbl-wrap header h3 { margin: 0; font-size: 15px; font-weight: 400; color: var(--c-ink); letter-spacing: -0.1px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 11px 16px; text-align: left; border-bottom: 1px solid var(--c-hairline); white-space: nowrap; font-weight: 300; color: var(--c-ink); }
th { background: var(--c-canvas-soft); font-weight: 500; color: var(--c-ink-mute); font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; }
td.num, th.num { text-align: right; }
tbody tr:hover { background: var(--c-canvas-soft); }
table .empty { text-align: center; padding: 32px; color: var(--c-ink-mute); }
.pagination { display: flex; justify-content: flex-end; gap: 12px; padding: 12px 20px; border-top: 1px solid var(--c-hairline); align-items: center; color: var(--c-ink-mute); font-size: 13px; }

/* ---------- Forms ---------- */
form.stacked label { display: block; font-size: 11px; font-weight: 500; margin: 12px 0 6px; color: var(--c-ink-mute); text-transform: uppercase; letter-spacing: 0.06em; }
form.stacked input, form.stacked select, form.stacked textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--c-hairline-in); border-radius: var(--r-sm); font: inherit; color: var(--c-ink); background: var(--c-canvas);
}
form.stacked input:focus, form.stacked select:focus, form.stacked textarea:focus {
  outline: 3px solid rgba(83, 58, 253, .15); border-color: var(--c-primary);
}
form.inline-row { display: flex; gap: 8px; align-items: end; }

/* Users-table actions cell: keep buttons + disclosure on one line, wrap if needed */
table td:last-child .inline,
table td:last-child details { display: inline-block; vertical-align: middle; margin-right: 6px; }
table td:last-child details summary { display: inline-block; padding: 4px 0; }
table td:last-child details[open] summary { margin-bottom: 4px; }

/* Grid-style admin form (margins page) */
form.form-grid {
  display: grid !important;
  grid-template-columns: repeat(5, 1fr) auto !important;
  gap: 14px !important;
  align-items: end !important;
}
form.form-grid label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--c-ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
form.form-grid input,
form.form-grid select,
form.form-grid textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 8px 12px;
  border: 1px solid var(--c-hairline-in);
  border-radius: var(--r-sm);
  font: inherit;
  color: var(--c-ink);
  background: var(--c-canvas);
}
form.form-grid input:focus,
form.form-grid select:focus,
form.form-grid textarea:focus {
  outline: 3px solid rgba(83, 58, 253, .15);
  border-color: var(--c-primary);
}
form.form-grid button { align-self: end; }
@media (max-width: 900px) {
  form.form-grid { grid-template-columns: 1fr 1fr !important; }
  form.form-grid button { grid-column: 1 / -1; }
}

/* ---------- Skeleton ---------- */
.skeleton { background: linear-gradient(90deg, #eef2f6 25%, #e3e8ee 50%, #eef2f6 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: var(--r-sm); color: transparent; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ---------- Mobile ---------- */
@media (max-width: 900px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .chart-grid { grid-template-columns: 1fr; }
  .insights-body { grid-template-columns: 1fr; }
  .topnav { flex-direction: column; align-items: stretch; gap: 8px; padding: 12px; }
  .topnav-links { flex-wrap: wrap; }
  .content { padding: 14px; }
  .dashboard-hd h1 { font-size: 26px; letter-spacing: -0.26px; }
}