:root {
  --bg-gradient: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.15);
  --text-primary: #ffffff;
  --text-secondary: #c4c9d6;
  --accent: #7b68ee;
  --danger: #ff6b6b;
  --success: #51cf66;
  --warning: #ffd43b;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-gradient);
  color: var(--text-primary);
  min-height: 100vh;
  padding-bottom: 4rem;
}

.app-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 1.5rem;
}

.app-header {
  text-align: center;
  margin-bottom: 2rem;
}

h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  background: linear-gradient(to right, #fff, #a8b5ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

#searchInput {
  width: 100%;
  padding: 1rem 1.2rem;
  border-radius: 16px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: white;
  font-size: 1rem;
  outline: none;
  transition: all 0.3s ease;
}

#searchInput:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(123, 104, 238, 0.25);
}

.drug-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 1.2rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  touch-action: manipulation;
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card-streets {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.8rem;
  line-height: 1.4;
}

.dose-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  padding: 0.3rem 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.dose-label { color: var(--text-secondary); }
.dose-value { font-weight: 500; }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: white;
  font-size: 1.8rem;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#modalTitle {
  margin-top: 0.5rem;
  font-size: 1.6rem;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 0.5rem;
  display: inline-block;
}

.effect-section {
  margin-top: 1.2rem;
}

.effect-title {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.positive .effect-title::before { content: "🟢"; }
.negative .effect-title::before { content: "🔴"; }

.effect-list {
  list-style: none;
  padding-left: 1.8rem;
}

.effect-list li {
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
}

@media (min-width: 600px) {
  .drug-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .drug-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Scrollbar styling */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 10px; }