@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

/* ── Design tokens ──────────────────────────────────────────── */
:root {
  --z-50:  #fafafa;
  --z-100: #f4f4f5;
  --z-200: #e4e4e7;
  --z-300: #d4d4d8;
  --z-400: #a1a1aa;
  --z-500: #71717a;
  --z-600: #52525b;
  --z-700: #3f3f46;
  --z-800: #27272a;
  --z-900: #18181b;
  --z-950: #09090b;

  --radius-sm: 5px;
  --radius:    7px;
  --radius-lg: 10px;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.07), 0 1px 3px rgba(0,0,0,0.04);
}

/* ── Base ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--z-100);
  color: var(--z-950);
  font-size: 0.875rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

a { color: var(--z-900); }
a:hover { color: var(--z-700); }

/* ── Top navigation ─────────────────────────────────────────── */
.app-nav {
  background: #fff;
  border-bottom: 1px solid var(--z-200);
  height: 54px;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-nav .nav-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 0;
  height: 100%;
}

.app-nav .nav-brand {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--z-950);
  text-decoration: none;
  letter-spacing: -0.02em;
  padding-right: 2rem;
  white-space: nowrap;
}
.app-nav .nav-brand:hover { color: var(--z-700); }

.app-nav .nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  height: 100%;
}

.app-nav .nav-links li { height: 100%; }

.app-nav .nav-links a {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 0.875rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--z-500);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.12s, border-color 0.12s;
}
.app-nav .nav-links a:hover {
  color: var(--z-900);
  border-bottom-color: var(--z-400);
}

.app-nav .nav-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.app-nav .nav-user {
  font-size: 0.78rem;
  color: var(--z-400);
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  font-size: 0.82rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 0.42rem 0.9rem;
  letter-spacing: 0.01em;
  transition: background 0.12s, border-color 0.12s, color 0.12s, box-shadow 0.12s;
  border-width: 1px;
}

.btn-sm {
  font-size: 0.75rem;
  padding: 0.26rem 0.65rem;
  border-radius: 4px;
}

.btn-lg {
  font-size: 0.9rem;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius);
}

.btn-dark {
  background: var(--z-900);
  border-color: var(--z-900);
  color: #fff;
}
.btn-dark:hover, .btn-dark:focus {
  background: var(--z-800);
  border-color: var(--z-800);
  color: #fff;
}

.btn-outline-dark {
  border-color: var(--z-300);
  color: var(--z-700);
  background: transparent;
}
.btn-outline-dark:hover, .btn-outline-dark:focus {
  background: var(--z-100);
  border-color: var(--z-400);
  color: var(--z-900);
}

.btn-outline-secondary {
  border-color: var(--z-200);
  color: var(--z-500);
  background: transparent;
}
.btn-outline-secondary:hover, .btn-outline-secondary:focus {
  background: var(--z-100);
  border-color: var(--z-300);
  color: var(--z-700);
}

.btn-success {
  background: #16a34a;
  border-color: #16a34a;
  color: #fff;
}
.btn-success:hover, .btn-success:focus {
  background: #15803d;
  border-color: #15803d;
  color: #fff;
}

.btn-outline-success {
  color: #16a34a;
  border-color: #16a34a;
  background: transparent;
}
.btn-outline-success:hover {
  background: #16a34a;
  border-color: #16a34a;
  color: #fff;
}

.btn-outline-warning {
  color: #b45309;
  border-color: #d97706;
  background: transparent;
}
.btn-outline-warning:hover {
  background: #d97706;
  border-color: #d97706;
  color: #fff;
}

.btn-danger {
  background: #dc2626;
  border-color: #dc2626;
  color: #fff;
}
.btn-danger:hover { background: #b91c1c; border-color: #b91c1c; }

.btn-outline-danger {
  color: #dc2626;
  border-color: #dc2626;
  background: transparent;
}
.btn-outline-danger:hover {
  background: #dc2626;
  border-color: #dc2626;
  color: #fff;
}

.btn-primary {
  background: var(--z-900);
  border-color: var(--z-900);
  color: #fff;
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--z-800);
  border-color: var(--z-800);
  color: #fff;
}

/* ── Forms ────────────────────────────────────────────────────── */
.form-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--z-700);
  margin-bottom: 0.3rem;
}

.form-control, .form-select {
  font-size: 0.875rem;
  border: 1px solid var(--z-200);
  border-radius: var(--radius-sm);
  color: var(--z-900);
  background-color: #fff;
  padding: 0.42rem 0.75rem;
  transition: border-color 0.12s, box-shadow 0.12s;
}

.form-control:focus, .form-select:focus {
  border-color: var(--z-500);
  box-shadow: 0 0 0 3px rgba(113,113,122,0.1);
  outline: none;
}

.form-control::placeholder { color: var(--z-400); }

.form-control-sm {
  font-size: 0.8rem;
  padding: 0.3rem 0.6rem;
}

.form-text {
  font-size: 0.75rem;
  color: var(--z-400);
  margin-top: 0.2rem;
}

.invalid-feedback {
  font-size: 0.75rem;
  color: #dc2626;
}

.form-check-input {
  border-color: var(--z-300);
  border-radius: 3px;
}
.form-check-input:checked {
  background-color: var(--z-900);
  border-color: var(--z-900);
}
.form-check-input:focus {
  box-shadow: 0 0 0 3px rgba(113,113,122,0.1);
  border-color: var(--z-500);
}

/* ── Cards ────────────────────────────────────────────────────── */
.card {
  background: #fff;
  border: 1px solid var(--z-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
}

.card-header {
  background: var(--z-900) !important;
  color: #fff !important;
  border-bottom: none;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0.65rem 1.25rem;
}

.card-header.bg-secondary {
  background: var(--z-600) !important;
}

.card-body { padding: 1.25rem; }

.card-footer {
  background: var(--z-50);
  border-top: 1px solid var(--z-100);
  padding: 0.75rem 1.25rem;
  font-size: 0.8rem;
}

/* ── Alerts ───────────────────────────────────────────────────── */
.alert {
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  padding: 0.875rem 1.125rem;
  border-left: 3px solid transparent;
}

.alert-danger {
  background: #fef2f2;
  color: #991b1b;
  border-left-color: #dc2626;
}

.alert-warning {
  background: #fffbeb;
  color: #92400e;
  border-left-color: #d97706;
}

.alert-info {
  background: #eff6ff;
  color: #1e40af;
  border-left-color: #3b82f6;
}

.alert-success {
  background: #f0fdf4;
  color: #166534;
  border-left-color: #16a34a;
}

.alert-dismissible .btn-close {
  padding: 1rem;
}

/* ── Badges ───────────────────────────────────────────────────── */
.badge {
  font-size: 0.67rem;
  font-weight: 500;
  padding: 0.27em 0.6em;
  border-radius: 4px;
  letter-spacing: 0.03em;
}

.bg-danger   { background: #dc2626 !important; }
.bg-warning  { background: #d97706 !important; }
.bg-success  { background: #16a34a !important; }
.bg-info     { background: #3b82f6 !important; }
.bg-secondary { background: var(--z-500) !important; }
.bg-dark     { background: var(--z-900) !important; }

/* ── Tables ───────────────────────────────────────────────────── */
.table {
  font-size: 0.855rem;
}

.table > :not(caption) > * > * {
  padding: 0.7rem 0.875rem;
  border-bottom-color: var(--z-100);
  vertical-align: middle;
}

thead.table-dark th,
.table-dark th {
  background: var(--z-900) !important;
  color: #fff;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  border: none !important;
}

.table-hover > tbody > tr:hover > * {
  background-color: var(--z-50);
}

.table-secondary > * > * {
  background-color: var(--z-100) !important;
  color: var(--z-500) !important;
}

/* ── List groups ──────────────────────────────────────────────── */
.list-group-item {
  border-color: var(--z-100);
  font-size: 0.875rem;
  padding: 0.7rem 1rem;
}

.list-group-item-action:hover {
  background: var(--z-50);
  color: var(--z-900);
}

.list-group-flush .list-group-item:last-child {
  border-bottom: none;
}

/* ── Auth pages (login / register) ───────────────────────────── */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background: var(--z-100);
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: #fff;
  border: 1px solid var(--z-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2rem;
}

.auth-card h1 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.auth-card .auth-sub {
  font-size: 0.8rem;
  color: var(--z-400);
  margin-bottom: 1.5rem;
}

.auth-card hr {
  border-color: var(--z-200);
  margin: 1.25rem 0;
}

.auth-footer {
  text-align: center;
  font-size: 0.78rem;
  color: var(--z-500);
  margin-top: 1.25rem;
}

.auth-footer a {
  color: var(--z-700);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ── Misc utilities ───────────────────────────────────────────── */
.text-muted { color: var(--z-400) !important; }

.fs-5 { font-size: 1.1rem !important; }

hr { border-color: var(--z-200); }

.gap-2  { gap: 0.5rem !important; }
.gap-3  { gap: 0.75rem !important; }

/* Outcome page large alert override — more impactful */
.outcome-alert {
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border-left: 4px solid transparent;
}
.outcome-alert h1 { font-size: 1.1rem; margin-bottom: 0.35rem; }
.outcome-alert p  { font-size: 0.875rem; margin: 0; }

.outcome-alert.level-immediate {
  background: #fef2f2;
  border-left-color: #dc2626;
  color: #7f1d1d;
}
.outcome-alert.level-action {
  background: #fffbeb;
  border-left-color: #d97706;
  color: #78350f;
}
.outcome-alert.level-monitor {
  background: #eff6ff;
  border-left-color: #3b82f6;
  color: #1e3a5f;
}
.outcome-alert.level-low {
  background: #f0fdf4;
  border-left-color: #16a34a;
  color: #14532d;
}

/* ── Multi-page progress nav ──────────────────────────────────── */
.progress-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  padding: 0.875rem 1rem;
  background: var(--z-50);
  border: 1px solid var(--z-200);
  border-radius: var(--radius);
}

.progress-step {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--z-500);
  background: transparent;
  border: 1px solid var(--z-200);
  transition: background 0.1s, color 0.1s;
}

.progress-step:hover {
  background: var(--z-100);
  color: var(--z-800);
}

.progress-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  background: var(--z-200);
  color: var(--z-600);
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

.progress-step.active {
  background: var(--z-900);
  border-color: var(--z-900);
  color: #fff;
}

.progress-step.active .step-num {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

.progress-step.done {
  border-color: var(--z-300);
  color: var(--z-600);
}

.progress-step.done .step-num {
  background: var(--z-700);
  color: #fff;
}