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

/* ========================
   TOKENS
======================== */
:root {
  --bg: #f4f3f1;
  --surface: #ffffff;
  --surface-tint: #fbfaf8;
  --surface-raised: #f7f6f4;

  --text: #141516;
  --muted: #666b70;
  --muted-2: #9aa0a6;

  --accent: #67afd2;
  --accent-soft: rgba(103, 175, 210, 0.18);
  --accent-softer: rgba(103, 175, 210, 0.10);

  --green: #4caf7d;
  --green-soft: rgba(76, 175, 125, 0.15);
  --red: #e05c5c;
  --red-soft: rgba(224, 92, 92, 0.15);
  --amber: #f5a623;
  --amber-soft: rgba(245, 166, 35, 0.12);
  --amber-border: rgba(245, 166, 35, 0.28);

  --shadow-1: 0 1px 2px rgba(15,18,22,0.05), 0 10px 30px rgba(15,18,22,0.04);
  --shadow-0: 0 0 0 rgba(0,0,0,0);

  --r-lg: 24px;
  --r-md: 18px;
  --r-sm: 14px;
  --r-xs: 8px;

  --s-1: 8px;
  --s-2: 16px;
  --s-3: 24px;
  --s-4: 32px;
  --s-5: 40px;
  --s-6: 48px;
  --s-7: 64px;

  --container: 1180px;
  --focus: rgba(103, 175, 210, 0.45);

  --font-body: 'Figtree', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: 'DM Mono', ui-monospace, monospace;
}

/* ========================
   RESET
======================== */
*, *::before, *::after { box-sizing: border-box; }
html:focus-within { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: radial-gradient(1200px 600px at 50% -200px, rgba(103,175,210,0.08), transparent), var(--bg);
  line-height: 1.4;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

/* ========================
   SKIP LINK
======================== */
.skip-link {
  position: absolute;
  left: var(--s-2);
  top: var(--s-2);
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--surface);
  box-shadow: var(--shadow-1);
  transform: translateY(-140%);
  transition: transform 160ms ease;
  z-index: 20;
}
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

/* ========================
   LAYOUT
======================== */
.app {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.page-header {
  padding: var(--s-6) var(--s-6) var(--s-3);
}

.page {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--s-6) var(--s-7);
  display: grid;
  gap: var(--s-6);
}

/* ========================
   HEADER CARD
======================== */
.header-card {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(20px,3vw,32px);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, var(--surface), var(--surface-tint));
  box-shadow: var(--shadow-1);
  border: 1px solid rgba(20,21,22,0.04);
}

.header-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--s-2);
}

.header-title {
  margin: 0;
  letter-spacing: -0.02em;
  font-weight: 700;
  font-size: clamp(24px,3vw,34px);
  font-family: var(--font-body);
}

.header-subtitle {
  margin: var(--s-1) 0 0;
  color: var(--muted);
  font-size: clamp(13px,1.6vw,15px);
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  flex-shrink: 0;
}

.header-user {
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
}

.header-logout {
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid rgba(20,21,22,0.08);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: color 140ms, border-color 140ms, background 140ms;
}
.header-logout:hover {
  color: var(--text);
  border-color: rgba(20,21,22,0.2);
  background: rgba(20,21,22,0.03);
}

/* ========================
   SECTION HEADER
======================== */
.section-header {
  display: grid;
  gap: var(--s-1);
  margin-bottom: var(--s-3);
}

.section-title {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: clamp(18px,2.1vw,22px);
}

.section-meta {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  font-family: var(--font-mono);
}

/* ========================
   ALERT BANNER
======================== */
.alert-banner {
  border-radius: var(--r-md);
  padding: var(--s-3) var(--s-4);
  background: var(--amber-soft);
  border: 1px solid var(--amber-border);
  display: grid;
  gap: 6px;
  animation: fadeSlideIn 0.35s ease both;
}
.alert-banner[hidden] { display: none; }

.alert-label {
  margin: 0;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
  font-family: var(--font-mono);
}

.alert-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text);
}

/* ========================
   KPI GRID
======================== */
.kpi-grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4);
  justify-content: space-between;
}

.kpi-item {
  flex: 1 1 220px;
  min-width: 220px;
}

.kpi-card {
  display: grid;
  justify-items: center;
  gap: var(--s-2);
  padding: var(--s-3);
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--shadow-0);
  border: 1px solid rgba(20,21,22,0.04);
  transition: box-shadow 200ms ease, transform 200ms ease;
  animation: fadeSlideIn 0.4s ease both;
}

.kpi-card:nth-child(1) { animation-delay: 0.05s; }
.kpi-card:nth-child(2) { animation-delay: 0.10s; }
.kpi-card:nth-child(3) { animation-delay: 0.15s; }
.kpi-card:nth-child(4) { animation-delay: 0.20s; }

.kpi-card:hover {
  box-shadow: var(--shadow-1);
  transform: translateY(-2px);
}

/* KPI circle */
.kpi-circle {
  width: min(180px,42vw);
  aspect-ratio: 1/1;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 25%, rgba(255,255,255,0.9), rgba(255,255,255,0.6)), var(--surface);
  position: relative;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-1);
}

.kpi-ring {
  position: absolute;
  inset: 10px;
  border-radius: 999px;
  background: conic-gradient(from 225deg, var(--accent-soft), var(--accent), var(--accent-soft));
  filter: saturate(0.9);
  opacity: 0.75;
}
.kpi-ring::after {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 999px;
  background: var(--surface);
}

.kpi-score {
  position: relative;
  z-index: 1;
  font-weight: 500;
  letter-spacing: -0.04em;
  font-size: clamp(34px,4.6vw,56px);
  font-family: var(--font-mono);
  transition: opacity 200ms;
}

.kpi-label {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
  font-family: var(--font-mono);
}

/* Trend arrow */
.kpi-trend {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-mono);
  min-height: 22px;
  padding: 3px 10px;
  border-radius: 999px;
  transition: background 200ms;
}
.kpi-trend--up   { color: var(--green);  background: var(--green-soft); }
.kpi-trend--down { color: var(--red);    background: var(--red-soft); }
.kpi-trend--flat { color: var(--muted);  background: rgba(20,21,22,0.04); }

.kpi-trend-arrow { font-size: 15px; line-height: 1; }

/* ========================
   WEEKLY RECAP
======================== */
.recap-card {
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--shadow-1);
  border: 1px solid rgba(20,21,22,0.04);
  padding: var(--s-4);
  display: grid;
  gap: var(--s-2);
  border-left: 3px solid var(--accent);
  animation: fadeSlideIn 0.4s ease 0.1s both;
}

.recap-label {
  margin: 0;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: var(--font-mono);
}

.recap-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.recap-date {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
  font-family: var(--font-mono);
}

/* ========================
   DATE FILTER
======================== */
.date-filter-wrap {
  margin-top: var(--s-2);
}

.date-select {
  appearance: none;
  -webkit-appearance: none;
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 8px 36px 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(20,21,22,0.08);
  background-color: var(--surface);
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239aa0a6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 14px;
  color: var(--text);
  cursor: pointer;
  min-width: 180px;
  transition: border-color 140ms;
}

.date-select:hover { border-color: rgba(111,182,216,0.3); }
.date-select:focus { outline: 3px solid var(--focus); outline-offset: 2px; }

body.theme-dark .date-select {
  background-color: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.08);
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239aa0a6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
}

/* ========================
   RANGE FILTER + CHIPS
======================== */
.range-filters {
  display: flex;
  gap: var(--s-1);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--s-4);
}

.chip {
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid rgba(20,21,22,0.06);
  background: rgba(255,255,255,0.7);
  box-shadow: 0 1px 0 rgba(15,18,22,0.03);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: background 140ms ease, transform 140ms ease, border-color 140ms ease;
}
.chip:hover {
  background: rgba(255,255,255,0.95);
  border-color: rgba(103,175,210,0.22);
  transform: translateY(-1px);
}
.chip:active { transform: translateY(0); }
.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.chip:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

/* ========================
   CHARTS
======================== */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: var(--s-4);
}

.chart-card {
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--shadow-1);
  border: 1px solid rgba(20,21,22,0.04);
  padding: var(--s-4);
  display: grid;
  gap: var(--s-3);
  animation: fadeSlideIn 0.4s ease both;
}

.chart-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-2);
}

.chart-title {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 15px;
}

.chart-area {
  border-radius: var(--r-md);
  background: rgba(103,175,210,0.06);
  height: 240px;
  border: 1px solid rgba(20,21,22,0.05);
  position: relative;
}

.chart-area canvas {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
}

/* ========================
   FOOTER
======================== */
.page-footer {
  padding: var(--s-4) var(--s-6) var(--s-6);
  margin-top: auto;
}
.footer-text {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

/* ========================
   UTILITY
======================== */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ========================
   ANIMATIONS
======================== */
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ========================
   DARK THEME
======================== */
body.theme-dark {
  --bg: #141516;
  --surface: #1b1d1f;
  --surface-tint: #1f2124;
  --surface-raised: #222426;

  --text: #f4f4f4;
  --muted: #9aa0a6;
  --muted-2: #666b70;

  --accent: #6fb6d8;
  --accent-soft: rgba(111,182,216,0.18);
  --accent-softer: rgba(111,182,216,0.10);

  --green: #5cbf8a;
  --green-soft: rgba(92,191,138,0.14);
  --red: #e57070;
  --red-soft: rgba(229,112,112,0.14);

  --amber-soft: rgba(245,166,35,0.10);
  --amber-border: rgba(245,166,35,0.22);

  --shadow-1: 0 4px 30px rgba(0,0,0,0.25);
}

body.theme-dark .header-card,
body.theme-dark .kpi-card,
body.theme-dark .chart-card,
body.theme-dark .recap-card { border-color: rgba(255,255,255,0.05); }

body.theme-dark .recap-card { border-left-color: var(--accent); }

body.theme-dark .chip {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.08);
}
body.theme-dark .chip:hover {
  background: rgba(255,255,255,0.10);
  border-color: rgba(111,182,216,0.22);
}
body.theme-dark .chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #141516;
}

body.theme-dark .kpi-circle {
  background: radial-gradient(circle at 30% 25%, rgba(255,255,255,0.08), rgba(255,255,255,0.02)), var(--surface);
}
body.theme-dark .kpi-ring::after { background: var(--surface); }

body.theme-dark .chart-area {
  background: rgba(111,182,216,0.06);
  border-color: rgba(255,255,255,0.05);
}

body.theme-dark .header-logout {
  border-color: rgba(255,255,255,0.08);
}
body.theme-dark .header-logout:hover {
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.05);
}

body.theme-dark .kpi-trend--flat { background: rgba(255,255,255,0.05); }

/* ========================
   LOGIN PAGE
======================== */
.login-page {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: var(--s-4);
}

.login-card {
  width: 100%;
  max-width: 420px;
  padding: clamp(28px,4vw,48px);
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--shadow-1);
  border: 1px solid rgba(255,255,255,0.05);
  display: grid;
  gap: var(--s-3);
  text-align: center;
  animation: fadeSlideIn 0.45s ease both;
}

.login-logo {
  width: 56px;
  height: 56px;
  border-radius: 999px;
  background: conic-gradient(from 180deg, var(--accent-soft), var(--accent), var(--accent-soft));
  margin: 0 auto;
  display: grid;
  place-items: center;
  font-size: 24px;
}

.login-title {
  margin: 0;
  font-size: clamp(22px,3vw,28px);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.login-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.login-widget-wrap {
  display: flex;
  justify-content: center;
  min-height: 52px;
}

.login-hint {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.login-hint a { color: var(--accent); }

.login-hint code {
  background: rgba(255,255,255,0.08);
  padding: 2px 7px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.login-divider {
  height: 1px;
  background: rgba(255,255,255,0.06);
}

/* ========================
   RESPONSIVE
======================== */
@media (max-width: 1024px) {
  .page-header { padding: var(--s-5) var(--s-5) var(--s-3); }
  .page { padding: 0 var(--s-5) var(--s-6); }
  .kpi-grid { justify-content: center; }
  .kpi-item { flex: 1 1 260px; min-width: 260px; }
}

@media (max-width: 768px) {
  .page-header { padding: var(--s-4) var(--s-4) var(--s-3); }
  .page { padding: 0 var(--s-4) var(--s-6); gap: var(--s-5); }
  .charts-grid { grid-template-columns: 1fr; gap: var(--s-3); }
  .kpi-item { flex: 1 1 200px; min-width: 200px; }
}

@media (max-width: 480px) {
  .page-header { padding: var(--s-3) var(--s-3) var(--s-2); }
  .page { padding: 0 var(--s-3) var(--s-5); gap: var(--s-4); }
  .kpi-item { flex: 1 1 100%; min-width: 100%; }
  .kpi-card { padding: var(--s-3); }
  .chart-card { padding: var(--s-3); }
  .chart-area { height: 200px; }
  .header-actions { display: none; }
}