:root {
  --primary: #0ea5e9;
  --primary-dark: #0284c7;
  --secondary: #6366f1;
  --accent: #f43f5e;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --dark-bg: #0f172a;
  --card-bg: rgba(30, 41, 59, 0.7);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --glass-border: rgba(255, 255, 255, 0.1);
  --radius-lg: 16px;
  --radius-md: 12px;
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at top right, #1e293b, #0f172a);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.6;
  padding: 20px;
}

.app-container {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

header {
  text-align: center;
  margin-bottom: 32px;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Cards */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  transition: transform 0.2s;
}

.card h2 {
  font-size: 1.25rem;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Form Elements */
.form-group {
  margin-bottom: 16px;
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

select {
  width: 100%;
  padding: 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: rgba(15, 23, 42, 0.6);
  color: white;
  font-size: 1rem;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
}

select:focus {
  outline: 2px solid var(--primary);
  border-color: transparent;
}

/* Status Indicators */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.1);
}

.status-open { color: var(--success); background: rgba(16, 185, 129, 0.15); border: 1px solid rgba(16, 185, 129, 0.3); }
.status-restricted { color: var(--warning); background: rgba(245, 158, 11, 0.15); border: 1px solid rgba(245, 158, 11, 0.3); }
.status-closed { color: var(--danger); background: rgba(239, 68, 68, 0.15); border: 1px solid rgba(239, 68, 68, 0.3); }

/* Buttons */
.btn {
  display: block;
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-md);
  border: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
  text-decoration: none;
  margin-bottom: 12px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 6px -1px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 10px -1px rgba(14, 165, 233, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* Utility */
.hidden { display: none !important; }
.info-row { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 0.95rem; }
.info-label { color: var(--text-muted); }
.info-value { font-weight: 500; text-align: right; }

.species-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.species-tag { background: rgba(255,255,255,0.1); padding: 4px 10px; border-radius: 6px; font-size: 0.85rem; }

/* Modal/Overlay */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(5px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-content {
  background: #1e293b;
  width: 100%;
  max-width: 400px;
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  text-align: center;
  animation: modalPop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes modalPop {
  0% { transform: scale(0.9); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.modal-icon { font-size: 48px; margin-bottom: 16px; display: block;}