:root {
  --accent-pink: #e35c9a;
  --accent-yellow: #f5c242;
  --text-color: #f0f3f7;
  --bg-start: #010e23;
  --bg-end: #071e3f;
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.1);
  --nav-bg: rgba(0, 0, 0, 0.6);
  --nav-blur: blur(10px);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-color);
  background: radial-gradient(circle at 50% 0%, var(--bg-start), var(--bg-end));
  min-height: 100vh;
}

#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding-bottom: 70px; /* space for bottom nav */
}

nav {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-around;
  background: var(--nav-bg);
  backdrop-filter: var(--nav-blur);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 999;
}

.nav-item {
  flex: 1;
  padding: 0.5rem 0;
  border: none;
  background: transparent;
  color: var(--text-color);
  font-size: 0.7rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.nav-icon {
  font-size: 1.3rem;
  line-height: 1;
  margin-bottom: 0.15rem;
}

.nav-item.active {
  border-radius: 12px;
  border: 1.5px solid var(--accent-yellow);
}

.tab {
  display: none;
  padding: 1rem;
  overflow-y: auto;
}

.tab.active {
  display: block;
}

.intro {
  margin-bottom: 1rem;
}

.intro h1 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.cards {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.card {
  flex: 1 1 calc(50% - 0.75rem);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.card-icon {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.card-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
  font-size: 1rem;
}

.card-text {
  font-size: 0.8rem;
  color: #bdc7d5;
}

.card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.mode-selector {
  text-align: center;
  margin-bottom: 1rem;
}

.mode-buttons {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.mode-btn {
  flex: 1 1 calc(33% - 1rem);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-color);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background 0.2s;
}

.mode-btn:hover {
  background: rgba(255,255,255,0.1);
}

.form-section {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.hidden {
  display: none;
}

.primary-btn {
  margin-top: 1rem;
  width: 100%;
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 8px;
  background: var(--accent-pink);
  color: white;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background 0.2s;
}

.primary-btn:hover {
  background: #c64580;
}

label {
  display: block;
  margin-top: 0.8rem;
  font-size: 0.85rem;
}

input[type="text"],
input[type="number"],
textarea {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  border: 1px solid var(--card-border);
  border-radius: 6px;
  background: rgba(255,255,255,0.08);
  color: var(--text-color);
  font-size: 0.85rem;
}

.field-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.8rem;
}

.mic-btn {
  padding: 0.4rem;
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: 50%;
  font-size: 1rem;
  color: var(--accent-yellow);
  cursor: pointer;
  transition: background 0.2s;
}

.mic-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* Patterns */
.patterns-section {
  margin-bottom: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1rem;
}

.patterns-section h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

#autoStats, #hypotheses, #confirmed {
  font-size: 0.85rem;
  line-height: 1.4;
  color: #ccd6e4;
}

/* Audit */
.audit-options {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.audit-options .mode-btn {
  flex: 1 1 50%;
}

.audit-form {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.audit-history {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1rem;
}

.audit-history h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

/* History List */
#historyList {
  font-size: 0.8rem;
}

#historyList .history-item {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--card-border);
}

#historyList .history-item:last-child {
  border-bottom: none;
}