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

:root {
  --bg: #0d0d22;
  --surface: #14142b;
  --border: #2a2a4a;
  --accent: #7c6af7;
  --accent-glow: rgba(124, 106, 247, 0.15);
  --text: #e8e8f0;
  --muted: #8888aa;
  --radius: 12px;
  --font: 'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.6; min-height: 100vh; }

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

/* ── NAV ─────────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(13,13,34,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo { font-weight: 700; font-size: 1.1rem; color: var(--text); letter-spacing: -0.5px; }
.nav-logo span { color: var(--accent); }
.nav-cta {
  background: var(--accent); color: #fff; border: none; border-radius: 8px;
  padding: 0.5rem 1.2rem; font-size: 0.9rem; font-weight: 600; cursor: pointer;
  transition: opacity 0.15s;
}
.nav-cta:hover { opacity: 0.85; }

/* ── HERO ─────────────────────────────────────────────── */
.hero {
  max-width: 800px; margin: 0 auto; padding: 6rem 2rem 4rem;
  text-align: center;
}
.hero-badge {
  display: inline-block; background: var(--accent-glow); border: 1px solid var(--accent);
  color: var(--accent); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 0.35rem 0.9rem; border-radius: 999px; margin-bottom: 2rem;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800;
  line-height: 1.15; letter-spacing: -1.5px; margin-bottom: 1.25rem;
}
.hero h1 span { color: var(--accent); }
.hero p {
  font-size: 1.1rem; color: var(--muted); max-width: 560px;
  margin: 0 auto 2.5rem;
}
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  background: var(--accent); color: #fff; border: none; border-radius: 10px;
  padding: 0.85rem 2rem; font-size: 1rem; font-weight: 700; cursor: pointer;
  transition: opacity 0.15s, transform 0.15s;
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-secondary {
  background: transparent; color: var(--text); border: 1px solid var(--border);
  border-radius: 10px; padding: 0.85rem 2rem; font-size: 1rem; font-weight: 600;
  cursor: pointer; transition: border-color 0.15s;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

/* ── PERSONAS PREVIEW ─────────────────────────────────── */
.personas-preview {
  max-width: 900px; margin: 0 auto 5rem; padding: 0 2rem;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem;
}
.persona-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.4rem; transition: border-color 0.2s, transform 0.2s;
}
.persona-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.persona-emoji { font-size: 2rem; margin-bottom: 0.6rem; }
.persona-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.3rem; }
.persona-card p { font-size: 0.82rem; color: var(--muted); }

/* ── HOW IT WORKS ─────────────────────────────────────── */
.how { max-width: 800px; margin: 0 auto 5rem; padding: 0 2rem; text-align: center; }
.how h2 { font-size: 1.8rem; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 3rem; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 2rem; text-align: left; }
.step { display: flex; flex-direction: column; gap: 0.5rem; }
.step-num { font-size: 2rem; font-weight: 900; color: var(--accent); line-height: 1; }
.step h3 { font-size: 0.95rem; font-weight: 700; }
.step p { font-size: 0.85rem; color: var(--muted); }

/* ── CTA BAND ─────────────────────────────────────────── */
.cta-band {
  max-width: 700px; margin: 0 auto 6rem; padding: 3rem 2rem;
  text-align: center; background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px;
}
.cta-band h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 0.75rem; }
.cta-band p { color: var(--muted); margin-bottom: 2rem; }

/* ── REVIEWER PAGE ─────────────────────────────────────── */
.reviewer-wrap {
  max-width: 1100px; margin: 0 auto; padding: 2rem;
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem;
  min-height: calc(100vh - 80px);
}
@media (max-width: 768px) { .reviewer-wrap { grid-template-columns: 1fr; } }

.panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem;
}
.panel h2 { font-size: 1rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }

textarea {
  flex: 1; min-height: 300px; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px; padding: 1rem;
  font-family: var(--font); font-size: 0.92rem; line-height: 1.7;
  resize: vertical; outline: none; transition: border-color 0.15s;
}
textarea:focus { border-color: var(--accent); }
textarea::placeholder { color: var(--muted); }

.run-bar { display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: center; }
.run-btn {
  background: var(--accent); color: #fff; border: none; border-radius: 8px;
  padding: 0.65rem 1.4rem; font-size: 0.9rem; font-weight: 700; cursor: pointer;
  transition: opacity 0.15s;
}
.run-btn:hover { opacity: 0.85; }
.run-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.clear-btn {
  background: transparent; color: var(--muted); border: 1px solid var(--border);
  border-radius: 8px; padding: 0.65rem 1rem; font-size: 0.9rem; cursor: pointer;
}
.clear-btn:hover { color: var(--text); border-color: var(--text); }

/* Right panel — personas list */
.right-panel { overflow-y: auto; }
.personas-list { display: flex; flex-direction: column; gap: 1rem; }

.persona-review-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
}
.persona-header {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.9rem 1rem; cursor: pointer; user-select: none;
}
.persona-header:hover { background: var(--accent-glow); }
.persona-icon { font-size: 1.4rem; }
.persona-info { flex: 1; }
.persona-info h3 { font-size: 0.92rem; font-weight: 700; }
.persona-info p { font-size: 0.78rem; color: var(--muted); }
.persona-run-btn {
  background: transparent; border: 1px solid var(--border); color: var(--text);
  border-radius: 6px; padding: 0.3rem 0.7rem; font-size: 0.8rem; cursor: pointer;
  white-space: nowrap;
}
.persona-run-btn:hover { border-color: var(--accent); color: var(--accent); }
.persona-run-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.persona-response {
  padding: 0 1rem 1rem; font-size: 0.88rem; line-height: 1.75; color: var(--muted);
  white-space: pre-wrap; display: none;
}
.persona-response.visible { display: block; }
.persona-response.loading { color: var(--accent); font-style: italic; }

.add-persona-btn {
  background: transparent; border: 1px dashed var(--border); color: var(--muted);
  border-radius: 10px; padding: 0.85rem; font-size: 0.9rem; cursor: pointer;
  width: 100%; transition: border-color 0.15s, color 0.15s;
}
.add-persona-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
  z-index: 200; display: flex; align-items: center; justify-content: center; padding: 1rem;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 2rem; width: 100%; max-width: 480px; display: flex; flex-direction: column; gap: 1rem;
}
.modal h3 { font-size: 1.1rem; font-weight: 800; }
.modal label { font-size: 0.85rem; color: var(--muted); display: block; margin-bottom: 0.4rem; }
.modal input, .modal textarea {
  width: 100%; background: var(--bg); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 0.7rem 0.9rem; font-family: var(--font); font-size: 0.9rem;
  outline: none; min-height: auto; resize: vertical;
}
.modal input:focus, .modal textarea:focus { border-color: var(--accent); }
.modal-actions { display: flex; gap: 0.75rem; justify-content: flex-end; margin-top: 0.5rem; }
.modal-save {
  background: var(--accent); color: #fff; border: none; border-radius: 8px;
  padding: 0.6rem 1.4rem; font-weight: 700; cursor: pointer;
}
.modal-cancel {
  background: transparent; border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 0.6rem 1.2rem; cursor: pointer;
}

/* API key bar */
.api-bar {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 0.6rem 2rem; display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
}
.api-bar label { font-size: 0.82rem; color: var(--muted); white-space: nowrap; }
.api-bar input {
  flex: 1; min-width: 220px; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px; padding: 0.4rem 0.8rem;
  font-size: 0.85rem; font-family: var(--font); outline: none;
}
.api-bar input:focus { border-color: var(--accent); }
.api-status { font-size: 0.8rem; color: var(--muted); }
.api-status.ok { color: #4ade80; }

/* ── Smart trigger badges ─────────────────────────────────── */
.trigger-badge {
  display: inline-block; margin-top: 0.3rem;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.04em;
  padding: 0.2rem 0.55rem; border-radius: 999px;
  background: rgba(136,136,170,0.12); color: var(--muted);
  border: 1px solid var(--border); transition: all 0.2s;
}
.trigger-badge.active {
  background: rgba(74,222,128,0.12); color: #4ade80;
  border-color: rgba(74,222,128,0.4);
}
.smart-trigger { border-left: 2px solid var(--border); }
.smart-trigger:has(.trigger-badge.active) { border-left-color: #4ade80; }

footer { text-align: center; padding: 2rem; color: var(--muted); font-size: 0.82rem; }