/* Anchor Panel — clean light theme (anchor.team branding).
   Space Grotesk + Inter · Blue/White/Gray palette */

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

:root {
  --bg: #f8fafc;
  --bg-white: #ffffff;
  --text: #0f172a;
  --text-body: #4b5563;
  --text-muted: #94a3b8;
  --blue: #2563eb;
  --blue-light: #3b82f6;
  --blue-lighter: #60a5fa;
  --grad: linear-gradient(135deg, #2563eb, #3b82f6, #60a5fa);
  --ok: #16a34a;
  --bad: #dc2626;
  --border: #e2e8f0;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 8px 32px rgba(37, 99, 235, 0.10);
  --r: 16px;
  --r-sm: 10px;
  --font-h: 'Space Grotesk', sans-serif;
  --font-b: 'Inter', system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: var(--font-b);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: #1d4ed8; }

/* ─── Layout shells ─── */
.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
  background: var(--bg);
}

/* ─── Card / form panel ─── */
.card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 40px 36px;
  max-width: 440px;
  width: 100%;
  box-shadow: var(--shadow);
}
.card h1 {
  font-family: var(--font-h);
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 4px;
}
.card h1 .accent { color: var(--blue); }
.card .sub {
  color: var(--text-body);
  font-size: 14px;
  margin-bottom: 24px;
}

/* ─── Form ─── */
label {
  display: block;
  font-family: var(--font-h);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text);
  margin-bottom: 6px;
  margin-top: 16px;
}
input[type="text"], input[type="email"], input[type="password"] {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  transition: border-color .2s, box-shadow .2s;
}
input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
button.btn, a.btn {
  display: inline-block;
  width: 100%;
  margin-top: 22px;
  padding: 13px 20px;
  background: var(--blue);
  color: #ffffff;
  border: none;
  border-radius: 12px;
  font-family: var(--font-h);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: background .15s, transform .15s, box-shadow .2s;
  text-align: center;
}
button.btn:hover, a.btn:hover {
  background: #1d4ed8;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
}
button.btn.ghost, a.btn.ghost {
  background: transparent;
  color: var(--text-body);
  border: 1px solid var(--border);
}
button.btn.ghost:hover, a.btn.ghost:hover {
  background: #f1f5f9;
  box-shadow: none;
}
button.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.row { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; font-size: 13px; }
.row label { margin: 0; display: flex; align-items: center; gap: 8px; font-weight: 400; color: var(--text-body); }
.row input[type="checkbox"] { accent-color: var(--blue); }
.row a { color: var(--text-muted); font-size: 13px; }
.row a:hover { color: var(--blue); }

.msg { margin-top: 16px; padding: 10px 14px; border-radius: 8px; font-size: 13px; display: none; }
.msg.err { display: block; background: rgba(220, 38, 38, 0.06); color: var(--bad); border: 1px solid rgba(220, 38, 38, 0.2); }
.msg.ok  { display: block; background: rgba(22, 163, 74, 0.06); color: var(--ok); border: 1px solid rgba(22, 163, 74, 0.2); }

.brandmark {
  text-align: center;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.brandmark .logo-text {
  font-family: var(--font-h);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.foot {
  text-align: center;
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-muted);
}
.foot a { color: var(--text-body); }
.foot a:hover { color: var(--blue); }

/* ─── Dashboard top nav ─── */
nav.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-white);
  position: sticky; top: 0; z-index: 20;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
nav.top .brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
nav.top .brand .logo-text {
  font-family: var(--font-h);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
nav.top .u { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--text-body); }
nav.top .u button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-body);
  padding: 7px 16px;
  border-radius: 999px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: .2s;
}
nav.top .u button:hover { color: var(--blue); border-color: var(--blue-light); background: rgba(37, 99, 235, 0.04); }

/* ─── Dashboard body ─── */
main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px 80px;
  width: 100%;
}
main h2 {
  font-family: var(--font-h);
  font-weight: 700;
  font-size: 26px;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 8px 0 18px;
}
main h2 .accent { color: var(--blue); }
main h3 {
  font-family: var(--font-h);
  font-size: 18px;
  font-weight: 600;
  margin: 32px 0 14px;
  color: var(--text);
}

.site-picker {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.site-picker button {
  background: var(--bg-white);
  border: 1px solid var(--border);
  color: var(--text-body);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: .2s;
}
.site-picker button:hover { border-color: var(--blue-light); color: var(--text); }
.site-picker button.active { border-color: var(--blue); color: var(--blue); background: rgba(37, 99, 235, 0.06); font-weight: 500; }

/* KPI grid */
.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 36px;
}
.kpi {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 24px;
  transition: transform .2s, box-shadow .2s;
}
.kpi:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.kpi .label { font-family: var(--font-h); font-size: 12px; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 10px; }
.kpi .value { font-family: var(--font-h); font-size: 42px; font-weight: 700; line-height: 1; color: var(--text); }
.kpi .delta { font-size: 12px; margin-top: 8px; color: var(--text-body); }
.kpi .delta.up { color: var(--ok); }
.kpi .delta.down { color: var(--bad); }

/* Chart panels */
.panels {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
  margin-bottom: 36px;
}
.panel {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 24px;
}
.panel h3 { margin: 0 0 14px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); font-family: var(--font-h); font-weight: 600; }
.panel svg { width: 100%; height: auto; }

/* ROI calculator */
.roi {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 28px;
  margin-bottom: 36px;
  box-shadow: var(--shadow);
}
.roi .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center; }
.roi label { margin-top: 14px; }
.roi input[type="range"] { width: 100%; accent-color: var(--blue); }
.roi .val { color: var(--blue); font-family: var(--font-h); font-size: 20px; font-weight: 600; }
.roi .result p { margin: 8px 0; font-size: 14px; color: var(--text-body); }
.roi .result .big {
  font-family: var(--font-h);
  font-size: 34px;
  font-weight: 700;
  color: var(--blue);
  margin: 12px 0 4px;
}
.roi .result .big .unit { font-size: 18px; color: var(--text-muted); font-weight: 400; }

.compet {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin-bottom: 36px;
}
.compet .c {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 20px;
  transition: transform .2s, box-shadow .2s;
}
.compet .c:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.compet .c h4 { font-family: var(--font-h); font-size: 17px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.compet .c .meta { font-size: 12px; color: var(--text-body); }

footer.site {
  text-align: center;
  padding: 30px;
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  margin-top: 40px;
}
footer.site a { color: var(--text-body); margin: 0 10px; transition: color .2s; }
footer.site a:hover { color: var(--blue); }

/* Mobile */
@media (max-width: 820px) {
  .panels { grid-template-columns: 1fr; }
  .roi .grid { grid-template-columns: 1fr; }
  nav.top { padding: 14px 20px; }
  nav.top .u .email { display: none; }
  main { padding: 20px 16px 60px; }
  .kpi .value { font-size: 34px; }
  .card { padding: 32px 24px; }
}