:root {
  --color-coral: #FF7A63;
  --color-sage: #8FBF9D;
  --color-blue-gray: #223645;
  --color-ivory: #F2EFE6;
  --color-white: #FFFFFF;
  --color-danger: #C0463A;
  --font-display: 'Barlow Condensed', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --radius: 6px;
  --nav-height: 64px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-ivory);
  color: var(--color-blue-gray);
  font-family: var(--font-body);
  line-height: 1.5;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-blue-gray);
  margin: 0 0 var(--spacing-sm);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.1rem; }

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

/* Top bar */
.topbar {
  height: var(--nav-height);
  background: var(--color-blue-gray);
  color: var(--color-ivory);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-md);
}

.topbar .brand {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ivory);
  text-decoration: none;
}

.topbar .brand span { color: var(--color-coral); }

.topbar nav {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.topbar button, .topbar .link-btn {
  background: none;
  border: 1px solid var(--color-ivory);
  color: var(--color-ivory);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  cursor: pointer;
  font-size: 0.85rem;
}

.topbar button:hover, .topbar .link-btn:hover { background: rgba(242,239,230,0.1); }

/* Layout */
main.container {
  max-width: 780px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
}

.card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  box-shadow: 0 1px 3px rgba(34,54,69,0.1);
}

.card + .card { margin-top: var(--spacing-md); }

.meta {
  font-size: 0.85rem;
  color: #5a6b76;
  margin-bottom: var(--spacing-xs);
}

/* Forms */
label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.3rem;
  color: var(--color-blue-gray);
}

input[type="text"], input[type="email"], input[type="password"], input[type="date"],
textarea, select {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid #cfd6da;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--color-white);
  color: var(--color-blue-gray);
  margin-bottom: var(--spacing-sm);
}

textarea { min-height: 90px; resize: vertical; }

.btn {
  display: inline-block;
  background: var(--color-coral);
  color: var(--color-white);
  border: none;
  padding: 0.65rem 1.3rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
}

.btn:hover { opacity: 0.9; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  background: none;
  border: 1px solid var(--color-blue-gray);
  color: var(--color-blue-gray);
}

.btn-danger { background: var(--color-danger); }

.btn-block { width: 100%; }

/* Lists */
.list-item {
  display: block;
  padding: var(--spacing-sm);
  border: 1px solid #e2ded2;
  border-radius: var(--radius);
  margin-bottom: var(--spacing-xs);
  text-decoration: none;
  color: var(--color-blue-gray);
  background: var(--color-white);
}

.list-item:hover { border-color: var(--color-coral); }

.list-item .title { font-weight: 700; }

.badge {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  background: var(--color-sage);
  color: var(--color-blue-gray);
}

.badge.closed, .badge.complete { background: #d8dde0; }

/* Observation entries */
.observation {
  border-left: 3px solid var(--color-coral);
  padding-left: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.observation .timestamp { font-size: 0.8rem; color: #5a6b76; }
.observation .gps { font-size: 0.75rem; color: #8a97a0; font-family: monospace; }
.observation .note { margin: 0.4rem 0; }

.photo-thumbs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.4rem;
}

.photo-thumbs img {
  width: 90px;
  height: 90px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid #e2ded2;
}

.empty-state {
  text-align: center;
  padding: var(--spacing-lg) var(--spacing-md);
  color: #5a6b76;
}

.error-msg {
  background: #fbeae7;
  color: var(--color-danger);
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

.status-msg {
  font-size: 0.85rem;
  color: #5a6b76;
  margin: 0.4rem 0;
}

.auth-shell {
  max-width: 380px;
  margin: 12vh auto 0;
  padding: 0 var(--spacing-md);
}

.auth-shell .card { padding: var(--spacing-lg); }

.toggle-mode {
  background: none;
  border: none;
  color: var(--color-coral);
  cursor: pointer;
  font-size: 0.85rem;
  text-decoration: underline;
  padding: 0;
}

/* Report print view */
.report-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 2px solid var(--color-blue-gray);
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.report-surveillance {
  margin-bottom: var(--spacing-lg);
  page-break-inside: avoid;
}

@media print {
  .topbar, .no-print { display: none !important; }
  body { background: var(--color-white); }
  main.container { max-width: 100%; padding: 0; }
  .card { box-shadow: none; border: none; padding: 0; }
}

@media (max-width: 600px) {
  main.container { padding: var(--spacing-md) var(--spacing-sm); }
  .topbar { padding: 0 var(--spacing-sm); }
  .topbar .brand { font-size: 1.1rem; }
}