:root {
  --navy-bg: #0B132B;
  --navy-surface: #16213E;
  --navy-card: #1C2541;
  --cyan-accent: #00D2FF;
  --gold-accent: #FFB703;
  --text-main: #FFFFFF;
  --text-muted: #94A3B8;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: var(--navy-bg);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  background-color: var(--navy-surface);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-white {
  font-weight: 900;
  font-size: 1.25rem;
  color: #FFF;
}

.brand-gold {
  font-weight: 900;
  font-size: 1.25rem;
  color: var(--gold-accent);
}

.credit-badge {
  background-color: var(--navy-card);
  border: 1px solid var(--gold-accent);
  color: var(--gold-accent);
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  font-weight: bold;
  font-size: 0.9rem;
}

.icon-btn {
  background: transparent;
  border: none;
  color: #FFF;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
}

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

.btn {
  padding: 10px 18px;
  border-radius: 12px;
  font-weight: bold;
  cursor: pointer;
  border: none;
  font-size: 0.95rem;
}

.btn-primary {
  background-color: var(--cyan-accent);
  color: #000;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--cyan-accent);
  color: var(--cyan-accent);
}

.btn-cyan {
  background-color: var(--cyan-accent);
  color: #000;
  width: 100%;
}

.btn-gold {
  background-color: var(--gold-accent);
  color: #000;
  width: 100%;
}

.btn-flat {
  background: transparent;
  color: var(--text-muted);
}

.main-container {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.sidebar {
  width: 280px;
  background-color: var(--navy-surface);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  padding: 16px;
}

.chat-workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--navy-bg);
}

.chat-messages {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
}

.suggestions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
  max-width: 600px;
}

.suggestion-card {
  background-color: var(--navy-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #FFF;
  padding: 14px;
  border-radius: 12px;
  cursor: pointer;
  text-align: left;
}

.suggestion-card:hover {
  border-color: var(--cyan-accent);
}

.input-area {
  padding: 16px 24px;
  background-color: var(--navy-surface);
}

.input-bar {
  display: flex;
  align-items: center;
  background-color: var(--navy-card);
  border-radius: 24px;
  padding: 6px 12px;
}

.input-bar input {
  flex: 1;
  background: transparent;
  border: none;
  color: #FFF;
  padding: 12px;
  outline: none;
  font-size: 1rem;
}

.btn-send {
  background-color: var(--cyan-accent);
  color: #000;
  border-radius: 50%;
  width: 40px;
  height: 40px;
}

/* Modals */
.modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background-color: var(--navy-surface);
  border: 1px solid var(--navy-card);
  padding: 28px;
  border-radius: 20px;
  width: 90%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-input {
  background-color: var(--navy-card);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 12px;
  border-radius: 10px;
  color: #FFF;
  outline: none;
}