/* ==========================================================================
   AI Concierge landing page — page-specific styles
   Shared design system (colors, type, buttons, header, particle field)
   lives in css/styles.css. This file only adds what this page needs.
   ========================================================================== */

.header-inner--lp {
  justify-content: space-between;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero-lp {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 32px 80px;
}

.hero-lp-grid {
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}

.hero-lp-headline {
  font-size: clamp(32px, 4.4vw, 58px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin-bottom: 28px;
}

.hero-lp-subhead {
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--text-dim);
  line-height: 1.65;
  max-width: 52ch;
  margin-bottom: 40px;
}

.hero-lp-ctas {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
}

.btn-text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dim);
  transition: color 0.2s ease;
}

.btn-text-link::after {
  content: '↓';
  transition: transform 0.2s ease;
}

.btn-text-link:hover {
  color: var(--text);
}

.btn-text-link:hover::after {
  transform: translateY(3px);
}

/* ==========================================================================
   Hero visual — chat mockup
   ========================================================================== */

.hero-lp-visual {
  display: flex;
  flex-direction: column;
}

.chat-mockup {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--text-dim);
}

.chat-channel-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 0 0 rgba(91, 140, 255, 0.6);
  animation: pulse 2s ease-out infinite;
  flex-shrink: 0;
}

.chat-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px 22px;
  min-height: 480px;
}

.chat-bubble {
  max-width: 82%;
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.55;
  opacity: 0;
  transform: translateY(6px);
  animation: bubbleIn 0.4s ease forwards;
}

.chat-bubble--guest {
  align-self: flex-start;
  background: var(--bg-alt);
  color: var(--text);
  border-bottom-left-radius: 4px;
}

.chat-bubble--concierge {
  align-self: flex-end;
  background: linear-gradient(120deg, rgba(91, 140, 255, 0.18), rgba(155, 107, 255, 0.18));
  border: 1px solid rgba(91, 140, 255, 0.35);
  color: var(--text);
  border-bottom-right-radius: 4px;
}

@keyframes bubbleIn {
  to {
    opacity: 1;
    transform: none;
  }
}

.chat-typing {
  display: inline-flex;
  align-self: flex-end;
  gap: 4px;
  padding: 14px 16px;
}

.chat-typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-blue);
  animation: typingBounce 1.1s ease-in-out infinite;
}

.chat-typing span:nth-child(2) {
  animation-delay: 0.15s;
}

.chat-typing span:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes typingBounce {
  0%, 80%, 100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  40% {
    transform: translateY(-4px);
    opacity: 1;
  }
}

.chat-caption {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--text-faint);
  text-align: center;
}

/* ==========================================================================
   Prose — narrow body-copy block, reused by Problem and every Capability
   ========================================================================== */

.prose {
  max-width: 640px;
  margin-top: 8px;
}

.prose p {
  font-size: clamp(16px, 1.5vw, 18px);
  color: var(--text-dim);
  line-height: 1.75;
  margin-bottom: 22px;
}

.prose p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Capability sections
   ========================================================================== */

.point-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px 32px;
  max-width: 980px;
  margin-top: 36px;
}

.point {
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.point p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-dim);
}

.point p strong {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.proof-line {
  max-width: 640px;
  margin-top: 32px;
  padding-left: 20px;
  border-left: 2px solid var(--accent-blue);
  font-style: italic;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-dim);
}

.pull-quote {
  max-width: 640px;
  margin: 8px 0 0;
  padding: 6px 0 6px 28px;
  border-left: 2px solid var(--accent-blue);
}

.pull-quote p {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.42;
  color: var(--text);
}

.sub-blocks {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  max-width: 980px;
  margin-top: 36px;
}

.sub-block h3 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
  color: var(--text);
}

.sub-block p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-dim);
  margin-bottom: 14px;
}

.sub-block p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Recap table
   ========================================================================== */

.recap-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  margin-top: 8px;
}

.recap-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.recap-table th,
.recap-table td {
  text-align: left;
  vertical-align: top;
}

.recap-table thead th {
  padding: 16px 24px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 500;
}

.recap-table tbody th,
.recap-table tbody td {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
  line-height: 1.6;
  font-weight: 400;
}

.recap-table tbody th {
  color: var(--text);
  font-weight: 600;
}

.recap-table tbody td {
  color: var(--text-dim);
}

.recap-table tbody tr:last-child th,
.recap-table tbody tr:last-child td {
  border-bottom: none;
}

.recap-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq-list {
  margin-top: 8px;
  max-width: 780px;
}

.faq-item {
  border-top: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: 1px solid var(--border);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 4px;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  position: relative;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--text-dim);
  transition: transform 0.25s ease, background 0.25s ease;
}

.faq-icon::before {
  left: 0;
  top: 50%;
  width: 100%;
  height: 1.5px;
  transform: translateY(-50%);
}

.faq-icon::after {
  top: 0;
  left: 50%;
  width: 1.5px;
  height: 100%;
  transform: translateX(-50%);
}

.faq-item[open] .faq-icon::after {
  transform: translateX(-50%) rotate(90deg);
}

.faq-item[open] .faq-icon::before,
.faq-item[open] .faq-icon::after {
  background: var(--accent-blue);
}

.faq-answer {
  padding: 0 28px 28px 4px;
}

.faq-answer p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-dim);
  animation: faqOpen 0.3s ease;
}

@keyframes faqOpen {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ==========================================================================
   Closing CTA
   ========================================================================== */

.cta-card {
  position: relative;
  max-width: 760px;
  margin: 8px auto 0;
  padding: 72px 48px;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -60%;
  left: 50%;
  width: 640px;
  height: 420px;
  transform: translateX(-50%);
  background: var(--accent-gradient);
  opacity: 0.16;
  filter: blur(90px);
  pointer-events: none;
}

.cta-heading,
.cta-body,
.cta-actions {
  position: relative;
  z-index: 1;
}

.cta-heading {
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.cta-body {
  font-size: clamp(16px, 1.7vw, 19px);
  color: var(--text-dim);
  line-height: 1.65;
  max-width: 520px;
  margin: 0 auto 36px;
}

.cta-actions {
  display: flex;
  justify-content: center;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .hero-lp {
    padding: 120px 24px 64px;
  }

  .hero-lp-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-lp-ctas {
    row-gap: 16px;
  }

  .sub-blocks {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cta-card {
    padding: 48px 28px;
  }
}

@media (max-width: 760px) {
  .recap-table,
  .recap-table thead,
  .recap-table tbody,
  .recap-table tr,
  .recap-table th,
  .recap-table td {
    display: block;
  }

  .recap-table thead {
    display: none;
  }

  .recap-table tbody tr {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
  }

  .recap-table tbody tr:last-child {
    border-bottom: none;
  }

  .recap-table tbody th,
  .recap-table tbody td {
    padding: 0;
    border-bottom: none;
  }

  .recap-table tbody th {
    font-size: 17px;
    margin-bottom: 12px;
  }

  .recap-table tbody td {
    margin-top: 14px;
  }

  .recap-table tbody td::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-faint);
  }
}