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

:root {
  color-scheme: dark;
  --bg-main: #131216;
  --bg-sidebar: #18171c;
  --bg-panel: #1e1d22;
  --bg-input: #19181d;
  --bg-hover: #25242a;
  
  --ink: #f4f2f5;
  --muted: #aaa6ad;
  --line: rgba(255, 255, 255, 0.08);
  
  --accent: #7065bd;
  --accent-hover: #857acc;
  
  --error: #f87171;
  --primary-hover: #857acc;
  --primary-text: #f4f2f5;
  
  --font-serif: var(--font-sans);
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font: 14px/1.5 var(--font-sans);
  background:
    radial-gradient(circle at top left, rgba(112, 101, 189, 0.12), transparent 34rem),
    var(--bg-main);
  -webkit-font-smoothing: antialiased;
}

/* Focus States */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Base structural layout */
.shell {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 280px;
  width: 100%;
  min-height: 100vh;
}

.sidebar {
  background: var(--bg-sidebar);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 24px 16px;
}

.rightbar {
  padding: 24px 16px;
  border-left: 1px solid var(--line);
  overflow: auto;
  background: var(--bg-main);
}

.workspace {
  min-width: 0;
  padding: 32px 48px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* Typography & Brand */
.brand {
  font-family: var(--font-serif);
  font-size: 24px;
  color: var(--ink);
  margin-bottom: 32px;
  padding: 0 8px;
  font-weight: 700;
  letter-spacing: 0;
}

h1, h2, p { margin-top: 0; }
h1 { 
  font-family: var(--font-serif);
  font-size: 32px; 
  font-weight: 500;
  margin-bottom: 0; 
  letter-spacing: 0;
}
h2 { 
  font-size: 16px; 
  font-weight: 600;
  margin-bottom: 4px; 
  color: var(--ink);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0;
  font-weight: 500;
}

[data-tooltip] {
  position: relative;
  cursor: help;
  border-bottom: 1px dashed var(--muted);
}
[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 8px;
  padding: 8px 12px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  font-size: 12px;
  white-space: pre;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  pointer-events: none;
  line-height: 1.4;
  text-transform: none;
  font-weight: normal;
  letter-spacing: normal;
}
[data-tooltip]:hover::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--line);
  margin-bottom: -1px;
  z-index: 99;
}

/* Navigation */
nav { display: grid; gap: 4px; }

button, input, select {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.nav {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 0 12px;
  color: var(--muted);
  background: transparent;
  text-align: left;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.nav:hover {
  background: var(--bg-hover);
  color: var(--ink);
}

.nav.active {
  color: var(--ink);
  background: var(--bg-hover);
  font-weight: 500;
}

.ghost {
  margin-top: auto;
  min-height: 44px;
  color: var(--muted);
  background: transparent;
  border-radius: 8px;
  padding: 0 12px;
  text-align: left;
  transition: all 0.2s ease;
}
.ghost:hover {
  background: var(--bg-hover);
  color: var(--ink);
}

/* Topbar and Controls */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
}

.filters, .toolbar, form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.input-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.input-wrap .eyebrow {
  margin: 0;
}

.field {
  display: grid;
  gap: 6px;
  text-align: left;
}

.field label {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

input, select {
  min-height: 44px;
  border: 1px solid var(--line);
  padding: 0 14px;
  color: var(--ink);
  background: var(--bg-main);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.2s;
}

input:focus, select:focus {
  border-color: var(--accent);
}

.primary {
  min-height: 44px;
  padding: 0 16px;
  color: var(--primary-text);
  background: var(--accent);
  border-radius: 8px;
  font-weight: 500;
  transition: background-color 0.2s, transform 0.1s ease-out;
}
.primary:hover {
  background: var(--primary-hover);
}
.primary:active {
  transform: scale(0.98);
}

/* View switching */
.view { display: none; }
.view.active { display: block; }
.hidden { display: none !important; }

/* Dashboard Metrics & Panels */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px 24px;
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.metric {
  display: flex;
  flex-direction: column;
}

.metric b {
  display: block;
  font-size: 36px;
  line-height: 1.1;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--ink);
  font-family: var(--font-serif);
}

.metric span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}
.dashboard-grid .span-2 { grid-column: span 2; }

.grid {
  display: grid;
  gap: 24px;
  margin-bottom: 24px;
}

.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.panel {
  padding: 32px;
  background: var(--bg-panel);
  border-radius: 8px;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.panel-head span { color: var(--muted); font-size: 12px; }

/* Bars & Charts */
.bars { display: grid; gap: 12px; }
.bar-row {
  display: grid;
  grid-template-columns: 85px 1fr 32px;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}
.bar-track {
  height: 6px;
  background: var(--bg-input);
  border-radius: 3px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
}

.funnel { display: grid; gap: 8px; }
.funnel-step {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-input);
  border-radius: 8px;
}

.kv {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.kv div {
  padding: 16px;
  background: var(--bg-input);
  border-radius: 8px;
}
.kv span { color: var(--muted); font-size: 13px; }

/* Tables */
.table-wrap {
  width: 100%;
  overflow: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}
th, td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
  font-size: 13px;
}
th {
  color: var(--muted);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0;
}
tr.clickable { cursor: pointer; transition: background 0.15s; }
tr.clickable:hover { background: var(--bg-hover); }

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Rightbar Cards & Feed */
.mini-card {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px;
  margin-bottom: 16px;
  background: var(--bg-panel);
  border-radius: 8px;
  border: 1px solid var(--line);
}
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  color: var(--bg-main);
  background: var(--accent);
  font-weight: bold;
}
.mini-card p { margin: 4px 0 0; color: var(--muted); font-size: 12px; line-height: 1.4; }
.mini-card b { color: var(--ink); font-weight: 600; }

.feed { display: grid; gap: 8px; }
.feed-item {
  padding: 12px;
  background: var(--bg-panel);
  border-radius: 8px;
  font-size: 13px;
  border: 1px solid transparent;
  transition: border-color 0.2s;
}
.feed-item:hover {
  border-color: var(--line);
}
.feed-item b { display: block; font-size: 13px; font-weight: 500; margin-bottom: 2px; }
.feed-item span { color: var(--muted); font-size: 12px; }

/* Login */
.login-card {
  max-width: 400px;
  margin: 100px auto;
  padding: 32px;
  background: var(--bg-panel);
  border-radius: 8px;
  border: 1px solid var(--line);
}
.login-card form { display: grid; gap: 16px; margin-top: 24px; }
.error { color: var(--error); min-height: 20px; font-size: 13px; margin-top: 12px; }
.view-error {
  margin: 0 0 24px;
}

.detail { margin-top: 24px; }
.pill {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 8px;
  color: var(--primary-text);
  background: var(--ink);
  font-size: 11px;
  font-weight: 600;
  border-radius: 8px;
}

/* Button loading state */
@keyframes btnSpin {
  to { transform: rotate(360deg); }
}

.primary {
  position: relative;
}

.primary.loading {
  color: transparent;
  pointer-events: none;
}

.primary.loading::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(244, 242, 245, 0.28);
  border-top-color: var(--primary-text);
  border-radius: 50%;
  animation: btnSpin 0.6s linear infinite;
}

.primary:disabled {
  opacity: 0.8;
  cursor: not-allowed;
}

/* Responsiveness */
@media (max-width: 1100px) {
  .shell { grid-template-columns: 240px minmax(0, 1fr); }
  .rightbar { display: none; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dashboard-grid { grid-template-columns: 1fr; }
  .dashboard-grid .span-2 { grid-column: span 1; }
}

@media (max-width: 760px) {
  .shell {
    display: grid;
    width: 100%;
    min-height: 100vh;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  /* Compact sticky mobile header */
  .sidebar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0;
    padding: 0;
    border-right: none;
    border-bottom: 1px solid var(--line);
    background: var(--bg-sidebar);
  }
  .brand {
    margin-bottom: 0;
    font-size: 16px;
    padding: 0 16px;
    flex-shrink: 0;
    letter-spacing: 0;
  }
  nav {
    display: flex;
    flex-direction: row;
    gap: 0;
    flex: 1;
    overflow-x: auto;
    scrollbar-width: none;
  }
  nav::-webkit-scrollbar { display: none; }
  .nav {
    flex-shrink: 0;
    border-radius: 0;
    padding: 0 12px;
    min-height: 48px;
    gap: 6px;
    font-size: 13px;
    border-bottom: 2px solid transparent;
  }
  .nav span { display: none; }
  .nav.active {
    background: transparent;
    border-bottom-color: var(--accent);
    color: var(--ink);
  }
  .nav:hover {
    background: transparent;
  }
  .ghost {
    margin: 0;
    flex-shrink: 0;
    min-height: 48px;
    padding: 0 16px;
    font-size: 12px;
    display: flex;
    align-items: center;
  }

  /* Content area */
  .workspace { padding: 16px; }
  .topbar {
    align-items: stretch;
    flex-direction: column;
    margin-bottom: 20px;
    gap: 12px;
  }
  .eyebrow { font-size: 11px; }
  h1 { font-size: 24px; }

  /* Filters stack vertically */
  .filters, .toolbar {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .filters .input-wrap {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 8px;
    align-items: center;
  }
  .toolbar .input-wrap {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .toolbar .input-wrap .sr-only + input,
  .toolbar .input-wrap .sr-only + select {
    width: 100%;
  }
  .toolbar input,
  .toolbar select {
    width: 100%;
  }
  .toolbar .primary {
    width: 100%;
  }
  .input-wrap .eyebrow {
    font-size: 11px;
  }

  /* Metrics: 2-column compact grid */
  .metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 12px;
    margin-bottom: 20px;
    padding-bottom: 20px;
  }
  .metric b { font-size: 24px; margin-bottom: 4px; }
  .metric span { font-size: 11px; }

  /* Dashboard panels stack */
  .dashboard-grid { gap: 12px; margin-bottom: 20px; }
  .grid.two { grid-template-columns: 1fr; }

  /* Compact panels */
  .panel { padding: 16px; border-radius: 8px; }
  .panel-head { margin-bottom: 12px; }

  /* Bar chart fits mobile */
  .bars { gap: 8px; }
  .bar-row {
    font-size: 12px;
    grid-template-columns: 72px 1fr 28px;
    gap: 6px;
  }

  /* Funnel compact */
  .funnel-step { padding: 10px 12px; font-size: 13px; }

  /* KV grid stays 2-col but tighter */
  .kv { gap: 8px; }
  .kv div { padding: 12px; }

  /* Tables */
  table { min-width: 480px; }
  th, td { padding: 8px 10px; font-size: 12px; }

  /* Login */
  .login-card { margin: 40px auto; padding: 24px; }
}