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

:root {
  --bg: #0f0f13;
  --surface: #1a1a23;
  --surface2: #22222e;
  --border: #2e2e3e;
  --accent: #7c6af7;
  --accent-hover: #6b59e8;
  --text: #e8e8f0;
  --muted: #888899;
  --error: #f47b7b;
  --success: #6bdb9e;
  --radius: 12px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

header {
  text-align: center;
  padding: 2.5rem 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, #a89af7, #7c6af7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

header p {
  color: var(--muted);
  margin-top: 0.4rem;
}

.subtitle-demo {
  font-size: 0.75rem;
  font-weight: 600;
  color: #7c6af7;
  margin-top: 0.2rem;
  letter-spacing: 0.02em;
}

/* Stacked inputs within a field */
input.mt-s { margin-top: 0.45rem; }

.app { max-width: 1280px; margin: 0 auto; }

main {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
}

@media (max-width: 860px) {
  main { grid-template-columns: 1fr; }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

/* Form */
.field { margin-bottom: 1.2rem; }

label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
}

input[type="text"],
input[type="password"],
textarea,
select {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.6rem 0.85rem;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.15s;
  outline: none;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
}

select { cursor: pointer; }
textarea { resize: vertical; }


/* Buttons */
.btn-primary, .btn-secondary {
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  font-family: inherit;
}

.btn-primary {
  width: 100%;
  padding: 0.75rem;
  background: var(--accent);
  color: #fff;
  margin-top: 0.5rem;
}

.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-primary:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-secondary {
  padding: 0.5rem 1rem;
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover { background: var(--border); }

.btn-sm {
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
}

.error { color: var(--error); font-size: 0.85rem; margin-top: 0.75rem; }
.hidden { display: none !important; }

/* Loading spinner on button */
.btn-primary.loading { position: relative; color: transparent; }
.btn-primary.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  margin: auto;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Preview panel */
.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

.preview-header h2 { font-size: 1rem; font-weight: 600; }

.preview-actions { display: flex; gap: 0.5rem; }

/* Info sections (visual desc + caption) */
.info-section {
  margin-top: 1.2rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.info-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.section-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.info-text {
  font-size: 0.88rem;
  color: rgba(232,232,240,0.65);
  line-height: 1.6;
}

.caption-box {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  font-family: inherit;
  font-size: 0.88rem;
  color: rgba(232,232,240,0.82);
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 260px;
  overflow-y: auto;
}

/* Placeholder */
.placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-height: 320px;
  color: var(--muted);
}

.placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.3;
}

/* ── Carousel Styles ── */
.carousel-container {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  background: #111;
  user-select: none;
}

.carousel-track {
  display: flex;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide {
  min-width: 100%;
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2.5rem 2.8rem;
  position: relative;
  overflow: hidden;
}

/* Slide themes */
.slide[data-theme="hook"] {
  background: linear-gradient(135deg, #1a0a2e, #2d1654);
}
.slide[data-theme="problem"] {
  background: linear-gradient(135deg, #1a0e0a, #2e1710);
}
.slide[data-theme="solution"] {
  background: linear-gradient(135deg, #0a1a14, #0e2e20);
}
.slide[data-theme="feature"] {
  background: linear-gradient(135deg, #0d0d2a, #141440);
}
.slide[data-theme="proof"] {
  background: linear-gradient(135deg, #0a1520, #102030);
}
.slide[data-theme="cta"] {
  background: linear-gradient(135deg, #1a0830, #3a0f6e);
}
.slide[data-theme="default"] {
  background: linear-gradient(135deg, #141420, #1c1c30);
}

/* Decorative circle */
.slide::before {
  content: '';
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
  top: -80px;
  right: -80px;
  pointer-events: none;
}

.slide-tag {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 0.9rem;
}

.slide-headline {
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 0.9rem;
}

.slide-headline em { color: #a89af7; font-style: normal; }

.slide-body {
  font-size: 0.97rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.65;
  max-width: 480px;
}

.slide-bullets {
  list-style: none;
  margin-top: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.slide-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.93rem;
  color: rgba(255,255,255,0.78);
}

.slide-bullets li::before {
  content: '✦';
  color: #a89af7;
  font-size: 0.65rem;
  margin-top: 0.35rem;
  flex-shrink: 0;
}

.slide-cta-btn {
  display: inline-block;
  margin-top: 1.4rem;
  padding: 0.7rem 1.8rem;
  background: linear-gradient(135deg, #7c6af7, #a89af7);
  color: #fff;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.slide-counter {
  position: absolute;
  bottom: 1.1rem;
  right: 1.4rem;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.3);
  font-weight: 600;
}

/* Nav arrows */
.carousel-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0.5rem 0;
}

.nav-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}

.nav-btn:hover { background: var(--accent); border-color: var(--accent); }
.nav-btn:disabled { opacity: 0.3; cursor: default; }

.dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.dot.active {
  background: var(--accent);
  transform: scale(1.3);
}