* { box-sizing: border-box; }
:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e8ecf5;
  --panel: #ffffff;
  --panel-soft: #fbfcff;
  --chip: #eef2ff;
  --chip-ink: #394166;
  --accent: #667eea;
  --accent-strong: #586adb;
  --danger: #dc3545;
  --success: #28a745;
  --warning: #d97706;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f172a;
  --ink: #e5e7eb;
  --muted: #9ca3af;
  --line: #334155;
  --panel: #111827;
  --panel-soft: #0b1220;
  --chip: #1f2a44;
  --chip-ink: #dbe3ff;
  --accent: #7c8fff;
  --accent-strong: #6b7ff0;
  --danger: #ef476f;
  --success: #2fbf71;
  --warning: #f59e0b;
}

body { margin: 0; background: var(--bg); color: var(--ink); font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif; }
button, input, select, textarea { font: inherit; }
button { border: 0; }

.hidden { display: none !important; }
.shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }

.auth-view { min-height: 100vh; display: grid; place-items: center; padding: 24px 0; }
.auth-card, .panel, .dialog-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 14px 34px rgba(31, 41, 55, 0.08);
}
.auth-card { width: min(420px, 100%); padding: 28px; display: grid; gap: 16px; }
.auth-card h2 { margin: 0; font-size: 32px; }
.auth-subtitle { margin: 0; color: var(--muted); }

.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.tab, .ghost {
  min-height: 38px;
  border-radius: 9px;
  border: 1px solid var(--line);
  cursor: pointer;
  color: var(--ink);
  background: var(--chip);
  font-weight: 700;
}
.tab.active { background: var(--accent); color: #fff; border-color: transparent; }
.form { display: grid; gap: 12px; }
label { display: grid; gap: 6px; color: #374151; font-size: 14px; font-weight: 700; }
/* Make labels readable on dark theme too */
:root[data-theme="dark"] label { color: var(--ink); }
input, select, textarea {
  width: 100%;
  min-height: 42px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid #d9deea;
  background: var(--panel);
  color: var(--ink);
}
textarea { min-height: 90px; padding: 10px 12px; resize: vertical; }
button {
  min-height: 40px;
  padding: 0 16px;
  border-radius: 10px;
  color: #fff;
  background: var(--accent);
  cursor: pointer;
  font-weight: 800;
}
button:hover { background: var(--accent-strong); }

.app-shell, .app-view { min-height: 100vh; background: var(--bg); }
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 64px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 28px rgba(31, 41, 55, 0.06);
}
.brand { font-size: 20px; font-weight: 800; color: var(--accent); }
.desktop-nav { color: var(--ink); font-weight: 700; }
.topbar-right { display: flex; align-items: center; gap: 12px; color: var(--muted); font-weight: 600; }
.role-pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--chip);
  color: var(--chip-ink);
  font-size: 12px;
  font-weight: 800;
}
.danger { background: var(--danger); color: #fff; }

.dashboard { padding: 24px 0 92px; display: grid; gap: 18px; }
.tabs {
  display: inline-flex;
  gap: 6px;
  padding: 6px;
  width: fit-content;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(31, 41, 55, 0.07);
}
.nav-button {
  min-height: 38px;
  padding: 0 16px;
  border-radius: 9px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-weight: 700;
}
.nav-button:hover { background: var(--chip); color: var(--accent); }
.nav-button.active { background: var(--accent); color: #fff; box-shadow: 0 8px 20px rgba(102, 126, 234, 0.28); }

.content-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}
.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 900;
}
.content-head h2 { margin: 0; font-size: 24px; }

.section-head { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; margin-bottom: 14px; }
h2, h3, p { margin-top: 0; }
h2 { margin-bottom: 6px; font-size: 26px; }
h3 { margin-bottom: 8px; font-size: 18px; }
.section-head p, .detail-header p, .empty-state p, .meta { margin-bottom: 0; color: var(--muted); }

.panel { padding: 22px; }
.detail-panel { display: grid; gap: 16px; }
.two-col { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }

.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.project-card {
  min-height: 150px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  text-align: left;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.project-card:hover { transform: translateY(-3px); border-color: #c7d2fe; box-shadow: 0 20px 44px rgba(31,41,55,.13); }
.project-card p { margin: 10px 0 0; color: var(--muted); }
.card-topline { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; margin-bottom: 16px; }
.card-topline h3 { margin: 0; color: var(--ink); }
.card-topline span { color: var(--accent); font-weight: 800; }

.progress-track { height: 10px; overflow: hidden; background: color-mix(in srgb, var(--line) 65%, var(--panel)); border-radius: 999px; }
.progress-mini { height: 8px; overflow: hidden; background: color-mix(in srgb, var(--line) 65%, var(--panel)); border-radius: 999px; }
.progress-track i, .progress-track span, .progress-mini i { display: block; height: 100%; background: var(--accent); }

.detail-header { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.progress-ring {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: var(--chip);
  font-weight: 900;
}

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.filters button {
  min-height: 38px;
  padding: 0 14px;
  border-radius: 9px;
  color: var(--ink);
  border: 0;
  background: color-mix(in srgb, var(--panel) 70%, var(--line));
  font-weight: 700;
}
.filters button.active { background: var(--accent); color: #fff; }

.task-toolbar { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-bottom: 14px; }
.task-list { display: grid; gap: 12px; }
.task-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px;
  border: 1px solid color-mix(in srgb, var(--line) 75%, var(--panel));
  border-radius: 10px;
  background: var(--panel-soft);
  transition: background .18s ease, border-color .18s ease;
}
.task-row:hover { background: var(--panel); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.task-main { display: grid; gap: 4px; min-width: 0; }
.task-main strong { color: var(--ink); overflow-wrap: anywhere; }
.task-main span { color: var(--muted); font-size: 14px; overflow-wrap: anywhere; }
.task-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.status { padding: 6px 10px; border-radius: 999px; font-size: 12px; font-weight: 800; }
.status.done { color: #166534; background: #dcfce7; }
.status.pending { color: #92400e; background: #fef3c7; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; }
.stat {
  padding: 16px;
  border-radius: 12px;
  background: var(--panel-soft);
  border: 1px solid color-mix(in srgb, var(--line) 75%, var(--panel));
}
.stat span { display: block; color: var(--muted); margin-bottom: 8px; font-weight: 700; }
.stat strong { font-size: 30px; color: var(--ink); }

.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }
.team-card, .empty-state, .project-row {
  border: 1px solid color-mix(in srgb, var(--line) 75%, var(--panel));
  border-radius: 10px;
  background: var(--panel-soft);
  padding: 12px;
}
.project-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 120px auto;
  align-items: center;
  gap: 12px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 26px;
  padding: 0 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  background: var(--chip);
  color: var(--accent);
}
.badge.warn { background: #fff3e2; color: var(--warning); }
.badge.done { background: #e7f8ef; color: var(--success); }

.small { min-height: 34px; padding: 0 12px; border-radius: 8px; font-size: 0.82rem; }
.status-select { min-width: 140px; min-height: 34px; }

.dialog {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(17, 24, 39, .45);
}
.dialog-card { width: min(500px, 100%); padding: 22px; display: grid; gap: 14px; max-height: calc(100vh - 40px); overflow: auto; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 4px; }
.icon-button { width: auto; min-height: 34px; padding: 0 12px; }

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  max-width: min(420px, calc(100vw - 36px));
  padding: 12px 14px;
  border-radius: 10px;
  color: #fff;
  background: #111827;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: .2s ease;
}
.toast.show { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .topbar { height: auto; min-height: 64px; padding: 12px 16px; align-items: flex-start; flex-direction: column; }
  .desktop-nav { display: none; }
  .topbar-right { width: 100%; justify-content: space-between; flex-wrap: wrap; }
  .tabs { width: 100%; display: grid; grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1fr; }
  .project-row { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .shell { width: min(100% - 18px, 1120px); }
  .content-head, .detail-header, .task-row, .panel-head { align-items: flex-start; flex-direction: column; }
  .task-actions { width: 100%; justify-content: space-between; flex-wrap: wrap; }
}