/* Chat Mon landing — dark theme, mobile-first */

:root {
  --font-display: "Plus Jakarta Sans", system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", system-ui, sans-serif;

  --bg: #0e141b;
  --bg-elevated: #151d27;
  --bg-muted: #1b2531;
  --text: #e8eef4;
  --text-soft: #9aabbc;
  --border: rgba(232, 238, 244, 0.12);
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-soft: rgba(59, 130, 246, 0.16);
  --mark: #2dd4bf;
  --atmosphere-1: #132033;
  --atmosphere-2: #0f2a28;
  --atmosphere-3: #121820;
  --placeholder-bg: #1e2a38;
  --placeholder-fg: #a8bacd;
  --shadow-soft: 0 18px 50px rgba(0, 0, 0, 0.35);
  --header-bg: rgba(14, 20, 27, 0.88);
  --radius: 14px;
  --radius-sm: 10px;
  --shell: 1120px;
  --header-h: 64px;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  position: relative;
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* Subtle page parallax */

.parallax-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.parallax-layer {
  position: absolute;
  will-change: transform;
  transform: translate3d(0, 0, 0);
}

.parallax-blob {
  width: 52vmax;
  height: 52vmax;
  border-radius: 50%;
  filter: blur(72px);
  opacity: 0.2;
}

.parallax-blob-a {
  top: -18vmax;
  left: -14vmax;
  background: color-mix(in srgb, var(--atmosphere-1) 70%, var(--accent) 30%);
}

.parallax-blob-b {
  top: 28vh;
  right: -20vmax;
  width: 46vmax;
  height: 46vmax;
  background: color-mix(in srgb, var(--atmosphere-2) 75%, var(--mark) 25%);
  opacity: 0.16;
}

.parallax-haze {
  inset: -10% 0;
  background:
    radial-gradient(ellipse 55% 40% at 70% 15%, var(--atmosphere-1), transparent 70%),
    radial-gradient(ellipse 45% 35% at 20% 70%, var(--atmosphere-2), transparent 65%);
  opacity: 0.28;
}

main,
.site-footer {
  position: relative;
  z-index: 1;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}

h1 {
  font-size: clamp(2.1rem, 5.5vw, 3.6rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(1.65rem, 3.5vw, 2.35rem);
}

h3 {
  font-size: 1.15rem;
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.shell {
  width: min(100% - 2rem, var(--shell));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: #fff;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  backdrop-filter: blur(14px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}

.brand-mark {
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--accent), var(--mark));
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.nav {
  display: none;
  gap: 1.25rem;
  margin-left: 1.5rem;
  color: var(--text-soft);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav a:hover {
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-left: auto;
}

.header-cta {
  display: inline-flex;
  font-size: 0.85rem;
  padding: 0.45rem 0.75rem;
  white-space: nowrap;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.85rem;
  padding: 0.7rem 1.25rem;
  border-radius: 0.7rem;
  font-weight: 600;
  font-size: 0.98rem;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease,
    transform 0.2s ease;
}

.btn:active {
  transform: translateY(1px);
}

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

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-ghost {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
}

.btn-ghost:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  background: var(--accent-soft);
}

.btn-sm {
  min-height: 2.35rem;
  padding: 0.45rem 0.9rem;
  font-size: 0.9rem;
}

.btn-lg {
  min-height: 3.15rem;
  padding: 0.85rem 1.5rem;
  font-size: 1.05rem;
}

/* Hero */

.hero {
  position: relative;
  overflow: hidden;
  padding: 2.5rem 0 3.5rem;
  min-height: calc(100svh - var(--header-h));
  display: flex;
  align-items: center;
}

.hero-atmosphere {
  position: absolute;
  inset: -8% 0;
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, var(--atmosphere-1), transparent 55%),
    radial-gradient(ellipse 70% 50% at 90% 10%, var(--atmosphere-2), transparent 50%),
    linear-gradient(180deg, var(--atmosphere-3), var(--bg) 75%);
  pointer-events: none;
  will-change: transform;
  transform: translate3d(0, 0, 0);
}

.hero-atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.28;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 85%);
}

.hero-grid {
  position: relative;
  display: grid;
  gap: 2rem;
  align-items: center;
}

.brand-lockup {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.hero-copy .lead {
  margin-top: 1rem;
  max-width: 34rem;
  color: var(--text-soft);
  font-size: 1.12rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.hero-visual {
  min-width: 0;
}

/* Sections */

.section {
  padding: 4.5rem 0;
}

.section-head {
  max-width: 38rem;
  margin-bottom: 2.25rem;
}

.section-head p {
  margin-top: 0.75rem;
  color: var(--text-soft);
}

.section-problem {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
}

.problem-list {
  display: grid;
  gap: 1.5rem;
}

.problem-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.problem-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.problem-index {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  line-height: 1.4;
}

.problem-list h3 {
  margin-bottom: 0.35rem;
}

.problem-list p {
  color: var(--text-soft);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.flow-infographic {
  margin: 0;
  padding: 1.5rem 1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 2px);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--bg-elevated) 88%, var(--accent-soft)), var(--bg-elevated));
}

.flow-track {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.flow-node {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: center;
  padding: 0.85rem 0.5rem;
}

.flow-visual {
  display: grid;
  place-items: center;
  width: 5.5rem;
  height: 5.5rem;
  border-radius: 1.1rem;
  background: var(--bg-muted);
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.flow-visual svg {
  width: 3.6rem;
  height: 3.6rem;
}

.flow-shape {
  fill: color-mix(in srgb, var(--text-soft) 22%, transparent);
  stroke: color-mix(in srgb, var(--text-soft) 55%, transparent);
  stroke-width: 1.5;
}

.flow-shape-soft {
  fill: color-mix(in srgb, var(--text-soft) 12%, transparent);
}

.flow-shape-accent {
  fill: var(--accent-soft);
  stroke: var(--accent);
  stroke-width: 1.75;
}

.flow-dot {
  fill: var(--accent);
}

.flow-line {
  stroke: var(--accent);
  fill: none;
}

.flow-badge {
  fill: var(--mark);
  stroke: none;
}

.flow-check {
  stroke: #fff;
  fill: none;
}

.flow-copy {
  min-width: 0;
}

.flow-label {
  display: inline-block;
  margin-bottom: 0.3rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.flow-copy h3 {
  margin-bottom: 0.3rem;
  font-size: 1.05rem;
}

.flow-copy p {
  color: var(--text-soft);
  font-size: 0.94rem;
  line-height: 1.45;
}

.flow-node-core .flow-visual {
  background: color-mix(in srgb, var(--accent-soft) 55%, var(--bg-muted));
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
}

.flow-node-result .flow-visual {
  background: color-mix(in srgb, var(--mark) 12%, var(--bg-muted));
  border-color: color-mix(in srgb, var(--mark) 30%, var(--border));
}

.flow-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.flow-arrow {
  display: none;
}

.flow-arrow-vert {
  display: block;
  opacity: 0.7;
}

.flow-summary {
  display: none;
}

.section-alert {
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, var(--atmosphere-1), transparent 60%),
    var(--bg);
}

.feature-list {
  display: grid;
  gap: 1.75rem;
}

.feature-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: start;
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--radius-sm);
  background: var(--bg-muted);
  color: var(--accent);
}

.feature-list h3 {
  margin-bottom: 0.3rem;
}

.feature-list p {
  color: var(--text-soft);
}

.section-admin {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
}

.admin-gallery {
  display: grid;
  gap: 1rem;
}

.media-shot {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-muted);
  box-shadow: var(--shadow-soft);
}

.media-shot img {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
}

.media-shot figcaption {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem 0.75rem;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-soft);
  font-size: 0.92rem;
  background: var(--bg-elevated);
}

.media-shot-label {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text);
}

.media-shot-hero {
  max-width: 100%;
}

.media-shot-alert {
  max-width: 560px;
  margin-inline: auto;
}

.admin-gallery-rest {
  display: grid;
  gap: 1rem;
}

.audience-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.audience-list li {
  padding: 0.65rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: 0.55rem;
  background: var(--bg-elevated);
  font-weight: 500;
  font-size: 0.98rem;
}

.pricing-grid {
  display: grid;
  gap: 1rem;
}

.pricing-plan {
  padding: 1.5rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.pricing-plan-featured {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, var(--accent-soft), transparent 60%),
    var(--bg-elevated);
}

.pricing-price {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0;
}

.pricing-price span {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-soft);
}

.pricing-plan ul {
  display: grid;
  gap: 0.45rem;
  margin: 0 0 0.5rem;
  padding: 0;
  list-style: none;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.pricing-plan ul li {
  padding-left: 1rem;
  position: relative;
}

.pricing-plan ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 1px;
  background: var(--accent);
}

.pricing-plan .btn {
  margin-top: auto;
  width: 100%;
}

.pricing-loading {
  margin: 0;
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-soft);
}

.pricing-note {
  margin-top: 1.25rem;
  color: var(--text-soft);
  text-align: center;
}

.pricing-note a {
  color: var(--accent);
  font-weight: 600;
}

.honest-panel {
  max-width: 42rem;
  padding: 1.75rem;
  border-left: 3px solid var(--mark);
  background: var(--bg-muted);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.honest-panel h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}

.honest-panel ul {
  display: grid;
  gap: 0.75rem;
}

.honest-panel li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--text-soft);
}

.honest-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 1px;
  background: var(--mark);
}

.cta-panel {
  text-align: center;
  padding: 3rem 1.25rem;
  border-radius: calc(var(--radius) + 4px);
  background:
    radial-gradient(ellipse 70% 80% at 50% 120%, var(--accent-soft), transparent 55%),
    linear-gradient(160deg, var(--bg-elevated), var(--bg-muted));
  border: 1px solid var(--border);
}

.cta-panel h2 {
  max-width: 18ch;
  margin-inline: auto;
}

.cta-panel p {
  max-width: 34rem;
  margin: 0.9rem auto 1.75rem;
  color: var(--text-soft);
}

/* Footer */

.site-footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--border);
  color: var(--text-soft);
  font-size: 0.92rem;
}

.footer-inner {
  display: grid;
  gap: 0.85rem;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
}

.footer-link {
  color: var(--accent);
  font-weight: 600;
  width: fit-content;
}

.footer-link:hover {
  text-decoration: underline;
}

/* Motion */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal-delay {
  transition-delay: 0.12s;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn {
    transition: none;
  }

  .parallax-bg,
  .hero-atmosphere {
    transform: none !important;
  }

  .parallax-layer {
    will-change: auto;
  }
}

/* Breakpoints */

@media (min-width: 640px) {
  .problem-list {
    gap: 1.75rem;
  }

  .admin-gallery-rest {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: stretch;
  }
}

@media (min-width: 880px) {
  .nav {
    display: flex;
  }

  .hero {
    padding: 3rem 0 4.5rem;
  }

  .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2.5rem;
  }

  .flow-infographic {
    padding: 2rem 1.5rem 1.5rem;
  }

  .flow-track {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0;
  }

  .flow-node {
    flex: 1 1 0;
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    padding: 0.5rem 0.35rem;
    gap: 0.85rem;
  }

  .flow-visual {
    width: 5.75rem;
    height: 5.75rem;
  }

  .flow-connector {
    flex: 0 0 auto;
    width: 2.75rem;
    height: 5.75rem;
    align-self: flex-start;
  }

  .flow-arrow {
    display: block;
    width: 100%;
    opacity: 0.75;
  }

  .flow-arrow-vert {
    display: none;
  }

  .flow-summary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    margin: 1.5rem 0 0;
    padding-top: 1.15rem;
    border-top: 1px solid var(--border);
    color: var(--text-soft);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .flow-summary-sep {
    width: 1.5rem;
    height: 1px;
    background: color-mix(in srgb, var(--accent) 55%, var(--border));
  }

  .feature-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem 2rem;
  }

  .cta-panel {
    padding: 3.5rem 2rem;
  }
}

@media (min-width: 1100px) {
  .shell {
    width: min(100% - 3rem, var(--shell));
  }
}