:root {
  --bg: #f4f6fa;
  --bg-2: #eef2f8;
  --panel: #ffffff;
  --line: #e4e9f2;
  --ink: #0b1220;
  --muted: #5b6475;
  --blue: #235ff6;
  --blue-deep: #1546c7;
  --blue-soft: #e8effe;
  --amber: #d97706;
  --danger: #e11d48;
  --ok: #059669;
  --shadow: 0 8px 28px rgba(15, 23, 42, 0.06);
  --font-display: "Plus Jakarta Sans", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Plus Jakarta Sans", sans-serif;
  --sidebar: 232px;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

a { color: var(--blue); }

.hidden { display: none !important; }

/* Login */
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(ellipse 70% 45% at 80% 0%, rgba(35, 95, 246, 0.14), transparent 55%),
    linear-gradient(180deg, #ffffff 0%, #f4f6fa 100%);
}

.login-card {
  width: min(420px, 100%);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 26px 24px;
  box-shadow: var(--shadow);
}

.login-brand {
  font-family: var(--font-display);
  font-weight: 750;
  font-size: 1.45rem;
  color: var(--blue);
  margin-bottom: 0.35rem;
  letter-spacing: -0.02em;
}

.login-card h1 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.login-card .sub {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 1.3rem;
}

.field { margin-bottom: 0.9rem; }

.field label {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
  font-weight: 500;
}

.field input {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
}

.field input:focus {
  outline: none;
  border-color: rgba(35, 95, 246, 0.55);
  box-shadow: 0 0 0 3px rgba(35, 95, 246, 0.12);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: none;
  border-radius: 12px;
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-weight: 650;
  transition: opacity 0.15s ease, transform 0.15s ease, background 0.15s ease;
}

.btn:hover { opacity: 0.94; transform: translateY(-1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }
.btn-block { width: 100%; }
.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 8px 20px rgba(35, 95, 246, 0.22);
}
.btn-primary:hover { background: var(--blue-deep); }
.btn-ghost {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
}
.btn-sm { padding: 0.4rem 0.75rem; font-size: 0.82rem; border-radius: 9px; }
.btn-danger {
  background: #fff1f2;
  color: var(--danger);
  border: 1px solid #fecdd3;
}

.error {
  color: var(--danger);
  font-size: 0.88rem;
  min-height: 1.2rem;
  margin-bottom: 0.6rem;
}

.dev-code {
  margin-top: 0.8rem;
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  color: #92400e;
  font-size: 0.88rem;
}

.dev-code strong {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.2em;
  display: block;
  margin-top: 0.25rem;
  color: var(--amber);
}

/* App shell */
.shell {
  display: grid;
  grid-template-columns: var(--sidebar) 1fr;
  min-height: 100vh;
}

.sidebar {
  border-right: 1px solid var(--line);
  background: #fff;
  padding: 1.1rem 0.85rem;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.side-brand {
  font-family: var(--font-display);
  font-weight: 750;
  color: var(--blue);
  padding: 0.4rem 0.7rem 1rem;
  font-size: 1.08rem;
  letter-spacing: -0.02em;
}

.nav-btn {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  cursor: pointer;
  margin-bottom: 0.2rem;
  font-weight: 500;
}

.nav-btn:hover { background: var(--bg); color: var(--ink); }
.nav-btn.active {
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 700;
}

.side-foot {
  margin-top: auto;
  padding: 0.8rem 0.7rem 0.3rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--muted);
}

.side-foot .email {
  color: var(--ink);
  margin: 0.2rem 0 0.6rem;
  word-break: break-all;
  font-weight: 500;
}

.main { padding: 1.25rem 1.5rem 2.5rem; min-width: 0; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.topbar h1 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 0.25rem;
  letter-spacing: -0.025em;
}

.topbar p { color: var(--muted); font-size: 0.9rem; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.1rem;
}

.stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.95rem 1rem;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
}

.stat .label { color: var(--muted); font-size: 0.8rem; margin-bottom: 0.35rem; font-weight: 500; }
.stat .value {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 750;
  letter-spacing: -0.03em;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem 1.05rem;
  margin-bottom: 0.9rem;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
}

.panel h2 {
  font-family: var(--font-display);
  font-size: 1rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 0.9rem;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.table th, .table td {
  text-align: left;
  padding: 0.7rem 0.45rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.table th { color: var(--muted); font-weight: 600; font-size: 0.78rem; }
.table tr:hover td { background: #f8faff; }
.table button.linkish {
  background: none;
  border: none;
  color: var(--blue);
  cursor: pointer;
  padding: 0;
  font-weight: 650;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.badge-high { background: #fff1f2; color: #be123c; }
.badge-medium { background: #fffbeb; color: #b45309; }
.badge-low { background: #ecfdf5; color: #047857; }
.badge-stage { background: var(--blue-soft); color: var(--blue); }

.chips { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.chip {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 500;
}

.alert-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.7rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
}

.alert-item:last-child { border-bottom: none; }
.alert-item h3 { font-size: 0.95rem; margin-bottom: 0.25rem; }
.alert-item p { color: var(--muted); font-size: 0.85rem; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 0.85rem;
}

.toolbar input, .toolbar select {
  padding: 0.55rem 0.7rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  min-width: 160px;
}

.timeline { display: flex; flex-direction: column; gap: 0.75rem; }
.tl-item {
  padding: 0.85rem 0.95rem;
  border-left: 3px solid var(--blue);
  background: #f8faff;
  border-radius: 0 12px 12px 0;
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-left-color: var(--blue);
}
.tl-item.inbound { border-left-color: var(--amber); background: #fffbeb; }
.tl-meta { color: var(--muted); font-size: 0.78rem; margin-bottom: 0.3rem; font-weight: 500; }
.tl-body { white-space: pre-wrap; word-break: break-word; font-size: 0.9rem; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin-bottom: 0.65rem;
}

.form-row.full { grid-template-columns: 1fr; }

.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: rgba(35, 95, 246, 0.55);
  box-shadow: 0 0 0 3px rgba(35, 95, 246, 0.1);
}

.empty {
  color: var(--muted);
  text-align: center;
  padding: 1.5rem 0.5rem;
  font-size: 0.9rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 0.9rem;
}

.kv { display: grid; gap: 0.45rem; }
.kv div {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 0.5rem;
  font-size: 0.9rem;
}
.kv .k { color: var(--muted); }
.fact {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.88rem;
}
.fact .ev { color: var(--muted); font-size: 0.8rem; margin-top: 0.2rem; }

@media (max-width: 960px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar {
    position: sticky;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem;
  }
  .side-brand { width: 100%; padding-bottom: 0.4rem; }
  .nav-btn { width: auto; }
  .side-foot { width: 100%; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid-2, .detail-grid, .form-row { grid-template-columns: 1fr; }
}