:root {
  --bg: #0b0c10;
  --bg-soft: #11141b;
  --panel: #161b24;
  --panel-2: #1b212c;
  --border: #232b38;
  --text: #eef2f7;
  --muted: #97a3b6;
  --accent: #ff7e5f;
  --accent-2: #feb47b;
  --accent-3: #7c5cff;
  --teal: #2bd4c8;
  --radius: 14px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  scroll-behavior: smooth;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { color: var(--accent); }

/* ─── nav ─── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(11, 12, 16, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: "Fraunces", serif;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text);
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: white;
  font-size: 1rem;
}
.nav-links { display: flex; gap: 1.5rem; }
.nav-links a { color: var(--muted); font-size: 0.92rem; }
.nav-links a:hover { color: var(--text); }

@media (max-width: 720px) {
  .nav-links { display: none; }
}

/* ─── buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.7rem 1.2rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
  text-decoration: none;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: white;
}
.btn-primary:hover { color: white; filter: brightness(1.05); }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--text); }

/* ─── hero ─── */
.hero {
  position: relative;
  overflow: hidden;
  padding: 6rem 2rem 5rem;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 126, 95, 0.35), transparent 50%),
    radial-gradient(circle at 80% 30%, rgba(124, 92, 255, 0.35), transparent 55%),
    radial-gradient(circle at 60% 80%, rgba(43, 212, 200, 0.28), transparent 55%),
    linear-gradient(180deg, #0b0c10 0%, #0b0c10 100%);
  filter: saturate(115%);
  z-index: 0;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(180deg, black 30%, transparent);
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}
.hero h1 {
  font-family: "Fraunces", serif;
  font-weight: 800;
  font-size: clamp(2.4rem, 5.5vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 1.5rem 0 1.25rem;
}
.grad-text {
  background: linear-gradient(120deg, var(--accent), var(--accent-2), var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  max-width: 640px;
  margin: 0 auto 2rem;
  font-size: 1.1rem;
  color: var(--muted);
}
.hero-cta {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.hero-meta {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  color: var(--muted);
  font-size: 0.85rem;
  flex-wrap: wrap;
}

/* ─── features ─── */
.features {
  padding: 3rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}
.feature {
  padding: 1.75rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s;
}
.feature:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.feature-icon {
  font-size: 1.8rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.5rem;
}
.feature h3 {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 1.2rem;
  margin: 0 0 0.4rem;
}
.feature p { color: var(--muted); margin: 0; font-size: 0.95rem; }

/* ─── destinations ─── */
.destinations {
  padding: 3rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}
.destinations h2 {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 1.8rem;
  margin: 0 0 1.5rem;
  text-align: center;
}
.dest-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
}
.dest {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 1rem;
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 1.1rem;
  color: white;
  cursor: pointer;
  transition: transform 0.2s;
}
.dest:hover { transform: translateY(-3px); }
.dest::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.6));
}
.dest span { position: relative; z-index: 1; }
.dest-1 { background: linear-gradient(135deg, #ff9966, #ff5e62); }
.dest-2 { background: linear-gradient(135deg, #e85d75, #6a0572); }
.dest-3 { background: linear-gradient(135deg, #f7971e, #ffd200); }
.dest-4 { background: linear-gradient(135deg, #2193b0, #6dd5ed); }
.dest-5 { background: linear-gradient(135deg, #c94b4b, #4b134f); }
.dest-6 { background: linear-gradient(135deg, #11998e, #38ef7d); }

/* ─── chat section ─── */
.chat-section {
  padding: 4rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}
.chat-header {
  text-align: center;
  margin-bottom: 2rem;
}
.chat-header h2 {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 2rem;
  margin: 0 0 0.5rem;
}
.chat-header p { color: var(--muted); margin: 0; }

.chat-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  min-height: 600px;
}
@media (max-width: 800px) {
  .chat-shell { grid-template-columns: 1fr; }
  .chat-sidebar { border-right: none !important; border-bottom: 1px solid var(--border); }
}

.chat-sidebar {
  padding: 1.5rem;
  border-right: 1px solid var(--border);
  background: var(--panel-2);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.agent {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.agent-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Fraunces", serif;
  font-weight: 700;
  font-size: 1.2rem;
}
.agent-name { font-weight: 600; }
.agent-role {
  font-size: 0.78rem;
  color: var(--teal);
}
.agent-role::before {
  content: "● ";
}
.sug-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 0.25rem;
}
.suggestions { display: flex; flex-direction: column; gap: 0.5rem; }
.sug {
  text-align: left;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.6rem 0.75rem;
  border-radius: 10px;
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.sug:hover {
  border-color: var(--accent);
  background: rgba(255, 126, 95, 0.06);
}
.reset { margin-top: auto; font-size: 0.85rem; padding: 0.55rem 0.9rem; }

.chat-main {
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-height: 600px;
}
.msg {
  max-width: 78%;
  padding: 0.75rem 1rem;
  border-radius: 14px;
  font-size: 0.95rem;
  white-space: pre-wrap;
  line-height: 1.5;
  animation: fadein 0.25s ease;
}
.msg-user {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: white;
  border-bottom-right-radius: 4px;
}
.msg-assistant {
  align-self: flex-start;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}
.msg-assistant h2 {
  font-family: "Fraunces", serif;
  font-size: 1rem;
  margin: 0.7rem 0 0.3rem;
  color: var(--accent-2);
}
.msg-assistant ul { padding-left: 1.2rem; margin: 0.3rem 0; }
.msg-assistant li { margin: 0.15rem 0; }
.msg-assistant p { margin: 0.4rem 0; }
.msg-assistant a { color: var(--accent-2); }

.typing {
  align-self: flex-start;
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 0.7rem 1rem;
  border-radius: 14px;
  display: inline-flex;
  gap: 4px;
}
.typing span {
  width: 7px; height: 7px;
  background: var(--muted);
  border-radius: 50%;
  animation: bounce 1.2s infinite;
}
.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}
@keyframes fadein {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.gate-select {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1rem 0;
  background: var(--panel);
  flex-wrap: wrap;
}
.gate-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-right: 0.15rem;
}
.gate-opt {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.32rem 0.8rem;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.gate-opt:hover { color: var(--text); border-color: var(--accent); }
.gate-opt.is-active {
  color: white;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
}

.attach-btn {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 10px;
  padding: 0 0.7rem;
  font-size: 1.1rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.attach-btn:hover { color: var(--text); border-color: var(--accent); }

.attach-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.7rem 1rem 0;
  padding: 0.35rem 0.6rem 0.35rem 0.7rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.8rem;
  color: var(--text);
  width: fit-content;
  max-width: calc(100% - 2rem);
}
.attach-chip span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.attach-chip button {
  background: none;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
  padding: 0;
}
.attach-chip button:hover { color: var(--accent); }

.chat-input {
  display: flex;
  gap: 0.5rem;
  padding: 1rem;
  border-top: 1px solid var(--border);
  background: var(--panel);
}
.chat-input textarea {
  flex: 1;
  resize: none;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  font-family: inherit;
  font-size: 0.95rem;
  max-height: 160px;
  line-height: 1.4;
}
.chat-input textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: transparent;
}
.chat-input button {
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: white;
  border: 0;
  border-radius: 10px;
  padding: 0 1.25rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.15s;
}
.chat-input button:hover { filter: brightness(1.05); }
.chat-input button:disabled { opacity: 0.5; cursor: not-allowed; }

.trace-note {
  font-size: 0.75rem;
  color: var(--muted);
  padding: 0 1rem 0.75rem;
  min-height: 1.2em;
}
.trace-note code {
  background: var(--bg-soft);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ─── footer ─── */
.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem;
  max-width: 1100px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 0.5rem;
}
.footer .brand-mark { margin-right: 0.4rem; vertical-align: middle; }