/* ==========================================================================
   Check Deka Landing — light formal theme (white + navy) + Ekachon
   ========================================================================== */

/* Ekachon: ใช้จากเครื่องถ้ามีติดตั้ง (Windows/macOS ไทย) */
@font-face {
  font-family: 'Ekachon';
  src:
    local('Ekachon'),
    local('Ekachon Light'),
    local('Ekachon-Light'),
    local('SP-Ekachon'),
    url('../fonts/Ekachon-Light.woff2') format('woff2'),
    url('../fonts/Ekachon-Regular.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

/* -------------------------------------------------------------------------- */
:root {
  --bg: #ffffff;
  --bg-elevated: #f4f7fb;
  --bg-card: #ffffff;
  --bg-card-hover: #eef2f7;
  --border: rgba(26, 43, 76, 0.1);
  --border-strong: rgba(26, 43, 76, 0.2);

  --navy: #1a2b4c;
  --navy-mid: #243656;
  --navy-light: #2d4a7a;
  --navy-soft: rgba(26, 43, 76, 0.06);
  --steel: #5a6d87;

  --text: #1a2b4c;
  --text-muted: #4a5d78;
  --text-dim: #6b7a90;

  --gradient: linear-gradient(135deg, #1a2b4c 0%, #243656 55%, #2d4a7a 100%);
  --gradient-soft: linear-gradient(135deg, rgba(26, 43, 76, 0.09), rgba(45, 74, 122, 0.04));
  --gradient-navy-text: linear-gradient(135deg, #1a2b4c 0%, #2d4a7a 100%);
  --gradient-hero: radial-gradient(ellipse 80% 60% at 20% 0%, rgba(45, 74, 122, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 50% at 90% 20%, rgba(26, 43, 76, 0.08), transparent 50%);

  --shadow-sm: 0 1px 3px rgba(26, 43, 76, 0.06);
  --shadow-card: 0 4px 24px rgba(26, 43, 76, 0.07);
  --shadow-card-hover: 0 12px 40px rgba(26, 43, 76, 0.12);
  --shadow-glow: 0 8px 32px rgba(26, 43, 76, 0.12);
  --shadow-btn: 0 4px 20px rgba(26, 43, 76, 0.22);

  --font: Ekachon, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial,
    'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol',
    'Noto Color Emoji';
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --header-h: 72px;
  --container: 1120px;
  --content-narrow: 40rem;
  --content-wide: 52rem;
  --section-gap: 3rem;
  --frame-padding: clamp(1.5rem, 3vw, 2.75rem);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background:
    linear-gradient(rgba(26, 43, 76, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 43, 76, 0.025) 1px, transparent 1px),
    var(--bg);
  background-size: 48px 48px, 48px 48px, auto;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

.site-link {
  color: var(--navy);
  -webkit-text-fill-color: currentColor;
  font-weight: inherit;
  text-decoration: underline;
  text-decoration-color: rgba(26, 43, 76, 0.35);
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.site-link:hover {
  color: var(--navy-light);
  text-decoration-color: var(--navy-light);
}

.text-gradient .site-link {
  color: var(--navy);
  -webkit-text-fill-color: currentColor;
  background: none;
}

.section-title .site-link {
  color: var(--navy);
}

.cta__title .site-link,
.faq-item summary .site-link {
  color: var(--navy);
}

.hero__lead .site-link,
.hero__note .site-link,
.stats__intro .site-link,
.section-lead .site-link,
.step__text .site-link,
.cta__text .site-link,
.faq-item p .site-link,
.mock-chat__title .site-link,
.tag .site-link,
.site-footer__tagline .site-link,
.site-footer__bottom .site-link {
  color: var(--navy);
}

.tag .site-link {
  text-decoration: none;
}

.tag .site-link:hover {
  text-decoration: underline;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

.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;
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

.section {
  padding-block: clamp(4rem, 8vw, 5.5rem);
  position: relative;
}

.section--tight {
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
}

.section-eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--navy-light);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: var(--shadow-sm);
}

.section-head--center {
  text-align: center;
  margin-inline: auto;
}

.section-head--center .section-eyebrow {
  display: inline-block;
}

.text-gradient {
  display: block;
  color: var(--navy);
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

@supports (-webkit-background-clip: text) or (background-clip: text) {
  .text-gradient {
    background: var(--gradient-navy-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}

/* Background glows */
.page-glow {
  position: fixed;
  pointer-events: none;
  z-index: 0;
  border-radius: 50%;
  filter: blur(120px);
}

.page-glow--hero {
  width: 600px;
  height: 600px;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(26, 43, 76, 0.06), transparent 70%);
}

.page-glow--mid {
  width: 500px;
  height: 500px;
  top: 55%;
  right: -150px;
  background: radial-gradient(circle, rgba(45, 74, 122, 0.05), transparent 70%);
}

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

/* -------------------------------------------------------------------------- */
/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition:
    background var(--transition),
    border-color var(--transition),
    backdrop-filter var(--transition);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-color: var(--border);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  transition: opacity var(--transition);
}

.brand:hover {
  opacity: 0.85;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--navy);
  border: 1px solid var(--navy-light);
  color: #ffffff;
  font-size: 1rem;
  transition: transform var(--transition);
}

.brand:hover .brand__mark {
  transform: scale(1.05);
}

.brand__accent {
  color: var(--navy-light);
}

.brand__text--domain {
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav a {
  position: relative;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition);
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition);
}

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

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  margin-inline: auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition);
}

.header-cta {
  flex-shrink: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: 999px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    opacity var(--transition);
}

.btn--primary {
  position: relative;
  overflow: hidden;
  background: var(--gradient);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-btn);
}

.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.18) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 0.6s ease;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(26, 43, 76, 0.28);
}

.btn--primary:hover::before {
  transform: translateX(120%);
}

.btn__arrow {
  display: inline-block;
  transition: transform var(--transition);
}

.btn--primary:hover .btn__arrow {
  transform: translateX(4px);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}

.btn--lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}

/* -------------------------------------------------------------------------- */
/* Hero */
.hero {
  position: relative;
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
  padding-bottom: clamp(3rem, 6vw, 4.5rem);
  background: var(--gradient-hero);
}

.hero::after {
  content: '';
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}

.hero__content {
  max-width: 34rem;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  margin-bottom: 24px;
  border-radius: 999px;
  border: 1px solid rgba(26, 43, 76, 0.14);
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(8px);
  color: var(--navy);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--navy);
  box-shadow: 0 0 8px rgba(26, 43, 76, 0.25);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero__title .site-link {
  display: inline-block;
  margin-bottom: 10px;
  font-size: clamp(2rem, 4.8vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--navy);
  text-decoration: none;
}

.hero__title .site-link:hover {
  color: var(--navy);
  text-decoration: underline;
}

.hero__lead {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 540px;
  margin-bottom: 32px;
}

.hero__lead strong {
  color: var(--navy);
  font-weight: 600;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-bottom: 16px;
}

.hero__demo {
  display: flex;
  flex-wrap: nowrap;
  gap: 16px;
  align-items: stretch;
  width: 100%;
  margin-bottom: 16px;
  flex-direction: column;
}

.hero__demo .showcase__panel,
.hero__demo .mock-chat {
  width: 100%;
}

.hero__demo .btn {
  align-self: flex-start;
}

.hero__demo-input {
  flex: 1 1 280px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.hero__demo-icon {
  font-size: 1.1rem;
}

.hero__demo-text {
  color: var(--text-dim);
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hero__note {
  color: var(--text-dim);
  font-size: 0.82rem;
}

.hero__visual {
  display: flex;
  justify-content: center;
}

.hero__mascot-wrap {
  position: relative;
}

.hero__mascot-wrap::before {
  content: '';
  position: absolute;
  inset: 5% 0;
  background: radial-gradient(circle, rgba(45, 74, 122, 0.14), transparent 68%);
  filter: blur(48px);
  z-index: -1;
}

.hero__mascot {
  width: min(420px, 100%);
  margin-inline: auto;
  filter: drop-shadow(0 20px 40px rgba(26, 43, 76, 0.15));
  animation: float 5s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

/* -------------------------------------------------------------------------- */
/* Stats */
.stats {
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
  border-block: 1px solid var(--border);
  background: var(--bg-elevated);
}

.stats__intro {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
  font-size: 1.05rem;
  max-width: var(--content-narrow);
  margin-inline: auto;
}

.stats__intro .section-eyebrow {
  margin-bottom: 14px;
}

.stats__intro p:last-child {
  margin: 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(0.75rem, 2vw, 1.25rem);
}

.stat-card {
  position: relative;
  text-align: center;
  padding: clamp(1.25rem, 2.5vw, 1.75rem) clamp(0.75rem, 1.5vw, 1rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition:
    border-color var(--transition),
    transform var(--transition-slow),
    box-shadow var(--transition-slow),
    background var(--transition);
}

.stat-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.stat-card__value {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--navy);
}

@supports (-webkit-background-clip: text) or (background-clip: text) {
  .stat-card__value {
    background: var(--gradient-navy-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}

.stat-card__value--text {
  font-size: 2.25rem;
}

.stat-card__suffix {
  font-size: 0.75em;
}

.stat-card__label {
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* -------------------------------------------------------------------------- */
/* Product preview */
.preview {
  padding-block: clamp(4rem, 8vw, 5.5rem);
}

.preview__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 3rem);
  align-items: center;
}

.preview__content .section-title {
  margin-bottom: 12px;
}

.preview__panel {
  min-width: 0;
}

.preview__panel .mock-chat {
  animation: none;
  box-shadow: var(--shadow-card-hover);
}

@media (min-width: 1025px) {
  .preview__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }
}

/* -------------------------------------------------------------------------- */
/* Showcase */
.showcase__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.mock-chat {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  overflow: hidden;
  box-shadow: var(--shadow-card-hover);
  animation: float 6s ease-in-out infinite;
  animation-delay: -2s;
}

.mock-chat__header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

.mock-chat__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.mock-chat__dot--red {
  background: #ff5f57;
}
.mock-chat__dot--yellow {
  background: #5a6d87;
}
.mock-chat__dot--green {
  background: #28c840;
}

.mock-chat__title {
  margin-left: 8px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.mock-chat__body {
  padding: 20px;
}

.mock-chat__turn {
  margin-bottom: 16px;
}

.mock-chat__turn--user {
  display: flex;
  justify-content: flex-end;
}

.mock-chat__bubble {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 0.9rem;
  line-height: 1.55;
}

.mock-chat__turn--user .mock-chat__bubble {
  background: var(--gradient);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.mock-chat__turn--bot .mock-chat__bubble {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
  color: var(--text-muted);
}

.mock-chat__bubble--md strong {
  color: var(--navy);
}

.mock-chat__composer {
  padding-top: 8px;
}

.mock-chat__pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.mock-chat__pill--on {
  border-color: rgba(26, 43, 76, 0.2);
  background: rgba(26, 43, 76, 0.06);
  color: var(--navy);
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-title--center::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  margin: 18px auto 0;
  border-radius: 3px;
  background: var(--gradient);
}

.section-title--center {
  text-align: center;
}

.section-lead {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: var(--content-narrow);
  line-height: 1.7;
}

.section-lead--center {
  text-align: center;
  margin-inline: auto;
}

.section-head {
  margin-bottom: clamp(2rem, 4vw, 3rem);
  max-width: var(--content-wide);
}

.check-list {
  list-style: none;
  margin-top: 24px;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  color: var(--text-muted);
}

.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--navy);
  font-weight: 700;
}

/* -------------------------------------------------------------------------- */
/* Features */
.features {
  background: var(--bg-elevated);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}

.feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  transition:
    border-color var(--transition),
    transform var(--transition-slow),
    box-shadow var(--transition-slow);
}

.feature-card:hover {
  border-color: rgba(45, 74, 122, 0.35);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.feature-card__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: var(--gradient-soft);
  border: 1px solid var(--border);
  font-size: 1.4rem;
  box-shadow: var(--shadow-sm);
}

.feature-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card__text {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex: 1;
}

.feature-card__img {
  width: 100%;
  height: clamp(160px, 22vw, 200px);
  margin-top: auto;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid var(--border);
  opacity: 0.88;
  transition:
    opacity var(--transition),
    transform var(--transition-slow);
}

.feature-card:hover .feature-card__img {
  opacity: 1;
  transform: scale(1.02);
}

/* -------------------------------------------------------------------------- */
/* How it works */
.how {
  background: var(--bg-elevated);
}

.how__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.how__content {
  min-width: 0;
}

.how__visual {
  display: flex;
  justify-content: center;
  padding: clamp(0.75rem, 2vw, 1.25rem);
}

.how__mascot {
  width: min(380px, 100%);
  filter: drop-shadow(0 20px 40px rgba(26, 43, 76, 0.12));
  animation: float 5.5s ease-in-out infinite;
  animation-delay: -1s;
}

.steps {
  list-style: none;
  margin-top: 32px;
  position: relative;
  padding-left: 8px;
}

.steps::before {
  content: '';
  position: absolute;
  left: 29px;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: linear-gradient(180deg, var(--navy-light), rgba(45, 74, 122, 0.15));
  border-radius: 2px;
}

.step {
  display: flex;
  gap: 20px;
  padding: 18px 0;
  border-bottom: none;
}

.step__num {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--navy-light);
  color: var(--navy);
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: var(--shadow-sm);
  transition:
    background var(--transition),
    color var(--transition),
    transform var(--transition);
}

.step:hover .step__num {
  background: var(--gradient);
  color: #fff;
  border-color: transparent;
  transform: scale(1.06);
}

.step__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.step__text {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* -------------------------------------------------------------------------- */
/* Database */
.database {
  background: var(--bg-elevated);
}

.database__card {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2rem, 4vw, 3rem);
  align-items: center;
}

.database__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.tag {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  transition:
    border-color var(--transition),
    transform var(--transition);
}

.tag:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.orbit {
  position: relative;
  width: 300px;
  height: 300px;
  margin-inline: auto;
}

.orbit::before {
  content: '';
  position: absolute;
  inset: 18%;
  border: 1px dashed rgba(45, 74, 122, 0.25);
  border-radius: 50%;
  animation: spin 30s linear infinite;
}

.orbit__center {
  position: absolute;
  inset: 50%;
  transform: translate(-50%, -50%);
  width: 96px;
  height: 96px;
  display: grid;
  place-items: center;
  text-align: center;
  border-radius: 50%;
  background: var(--gradient);
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.2;
  box-shadow: 0 0 0 8px rgba(26, 43, 76, 0.06), var(--shadow-glow);
  z-index: 2;
}

.orbit__node {
  position: absolute;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--navy);
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  animation: orbit-float 4s ease-in-out infinite;
}

.orbit__node--1 { animation-delay: 0s; }
.orbit__node--2 { animation-delay: 0.6s; }
.orbit__node--3 { animation-delay: 1.2s; }
.orbit__node--4 { animation-delay: 1.8s; }
.orbit__node--5 { animation-delay: 2.4s; }
.orbit__node--6 { animation-delay: 3s; }

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes orbit-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

.orbit__node--1 {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}
.orbit__node--2 {
  top: 18%;
  right: 0;
}
.orbit__node--3 {
  bottom: 18%;
  right: 0;
}
.orbit__node--4 {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}
.orbit__node--5 {
  bottom: 18%;
  left: 0;
}
.orbit__node--6 {
  top: 18%;
  left: 0;
}

.orbit__node--1,
.orbit__node--4 {
  animation-name: orbit-float-x;
}

@keyframes orbit-float-x {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-6px);
  }
}

/* -------------------------------------------------------------------------- */
/* Analysis */
.analysis-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.25rem);
}

.analysis-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: clamp(1.25rem, 2.5vw, 1.75rem) clamp(1.25rem, 2.5vw, 1.75rem)
    clamp(1.25rem, 2.5vw, 1.75rem) clamp(1.5rem, 2.5vw, 2rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition:
    border-color var(--transition),
    transform var(--transition-slow),
    box-shadow var(--transition-slow);
}

.analysis-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--gradient);
  opacity: 0.7;
  transition: opacity var(--transition);
}

.analysis-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.analysis-card:hover::before {
  opacity: 1;
}

.analysis-card__heading {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}

.analysis-card__heading::before {
  content: '';
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient);
}

.analysis-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* -------------------------------------------------------------------------- */
/* Pricing */
.pricing {
  background: var(--bg);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
  align-items: stretch;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: clamp(1.5rem, 2.5vw, 2rem) clamp(1.25rem, 2vw, 1.75rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  transition:
    border-color var(--transition),
    transform var(--transition-slow),
    box-shadow var(--transition-slow);
}

.pricing-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.pricing-card--featured {
  border: 2px solid rgba(45, 74, 122, 0.45);
  background:
    linear-gradient(180deg, rgba(45, 74, 122, 0.04), transparent 120px),
    var(--bg-card);
  box-shadow: var(--shadow-card-hover);
  z-index: 1;
}

.pricing-card--featured:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(26, 43, 76, 0.14);
}

.pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--gradient);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  box-shadow: var(--shadow-btn);
}

.pricing-card__head {
  margin-bottom: 20px;
}

.pricing-card__name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}

.pricing-card__audience {
  color: var(--text-dim);
  font-size: 0.88rem;
}

.pricing-card__price {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 8px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.pricing-card__amount {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--navy);
}

@supports (-webkit-background-clip: text) or (background-clip: text) {
  .pricing-card__amount {
    background: var(--gradient-navy-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}

.pricing-card__currency {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
}

.pricing-card__features {
  list-style: none;
  flex: 1;
  margin-bottom: 28px;
}

.pricing-card__features li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.pricing-card__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--navy);
  font-weight: 700;
}

.pricing-card__features li strong {
  color: var(--navy);
  font-weight: 700;
}

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

.btn--outline {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.btn--outline:hover {
  transform: translateY(-2px);
  border-color: var(--navy-light);
  background: var(--navy-soft);
  box-shadow: var(--shadow-card);
}

.pricing-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.75rem, 2vw, 1rem);
  margin-top: clamp(1.25rem, 2.5vw, 2rem);
}

.pricing-table-wrap {
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  overflow-x: auto;
}

.pricing-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 0.95rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.pricing-table caption {
  caption-side: top;
  padding: 0 0 12px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.pricing-table caption code {
  font-size: 0.82em;
}

.pricing-table th,
.pricing-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.pricing-table thead th {
  background: var(--bg-elevated);
  font-weight: 700;
  color: var(--navy);
  font-size: 0.88rem;
}

.pricing-table tbody th {
  font-weight: 700;
  color: var(--navy);
}

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

.pricing-table tbody tr:hover {
  background: var(--navy-soft);
}

.pricing-note {
  padding: clamp(1rem, 2vw, 1.25rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.pricing-note__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.pricing-note p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.pricing-note p strong {
  color: var(--navy);
}

/* -------------------------------------------------------------------------- */
/* Trust */
.trust {
  padding-block: clamp(3rem, 6vw, 4.5rem);
  background: var(--bg-elevated);
}

.trust__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}

.trust-item {
  text-align: center;
  padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1rem, 2vw, 1.5rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-slow),
    box-shadow var(--transition-slow);
}

.trust-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.trust-item__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--gradient-soft);
  border: 1px solid var(--border-strong);
  color: var(--navy);
  font-size: 1.25rem;
  font-weight: 700;
}

.trust-item h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.trust-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* -------------------------------------------------------------------------- */
/* FAQ */
.faq-list {
  max-width: 42rem;
  margin-inline: auto;
}

.faq-item {
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
}

.faq-item[open] {
  border-color: rgba(45, 74, 122, 0.3);
  box-shadow: var(--shadow-card-hover);
}

.faq-item summary {
  padding: 20px 24px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  transition: background var(--transition);
}

.faq-item[open] summary {
  background: var(--gradient-soft);
  color: var(--navy);
}

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

.faq-item summary::after {
  content: '+';
  float: right;
  color: var(--navy);
  font-weight: 700;
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item p {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* -------------------------------------------------------------------------- */
/* CTA */
.cta {
  padding-bottom: 120px;
}

.cta__card {
  position: relative;
  text-align: center;
  padding: 72px 40px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--gradient);
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(26, 43, 76, 0.28);
  color: #fff;
}

.cta__glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(255, 255, 255, 0.12), transparent 45%),
    radial-gradient(circle at 80% 100%, rgba(255, 255, 255, 0.08), transparent 40%);
  pointer-events: none;
}

.cta__title {
  position: relative;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}

.cta__title .site-link {
  color: #fff;
  text-decoration-color: rgba(255, 255, 255, 0.45);
}

.cta__title .site-link:hover {
  color: rgba(255, 255, 255, 0.85);
  text-decoration-color: #fff;
}

.cta__text {
  position: relative;
  color: rgba(255, 255, 255, 0.82);
  max-width: 520px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
}

.cta__text .site-link {
  color: #fff;
  text-decoration-color: rgba(255, 255, 255, 0.45);
}

.cta__text .site-link:hover {
  color: rgba(255, 255, 255, 0.9);
  text-decoration-color: #fff;
}

.cta__card .btn--primary {
  background: #fff;
  color: var(--navy);
  border-color: transparent;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.cta__card .btn--primary::before {
  background: linear-gradient(120deg, transparent 30%, rgba(26, 43, 76, 0.1) 50%, transparent 70%);
}

.cta__card .btn--primary:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.cta__card .btn {
  position: relative;
}

/* -------------------------------------------------------------------------- */
/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding-top: 64px;
  padding-bottom: 32px;
  background: linear-gradient(180deg, var(--bg-elevated), var(--bg));
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.site-footer__tagline {
  margin-top: 12px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.site-footer__links h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.site-footer__links a {
  display: block;
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 10px;
  transition: color var(--transition);
}

.site-footer__links a:hover {
  color: var(--navy);
}

.site-footer__credit {
  color: var(--text-dim);
  font-size: 0.85rem;
  line-height: 1.6;
}

.site-footer__credit a {
  color: var(--navy-light);
}

.site-footer__bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* -------------------------------------------------------------------------- */
/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay {
  transition-delay: 0.1s;
}
.reveal--delay-2 {
  transition-delay: 0.2s;
}
.reveal--delay-3 {
  transition-delay: 0.3s;
}

/* -------------------------------------------------------------------------- */
/* Responsive */
@media (max-width: 1024px) {
  .hero__grid,
  .showcase__grid,
  .how__grid,
  .preview__grid,
  .database__card {
    grid-template-columns: 1fr;
    gap: clamp(1.5rem, 4vw, 2rem);
  }

  .hero__visual {
    order: -1;
  }

  .hero__mascot {
    width: min(320px, 80%);
  }

  .showcase__panel {
    order: 2;
  }

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

  .feature-grid,
  .analysis-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card--featured {
    transform: none;
    order: -1;
  }

  .pricing-card--featured:hover {
    transform: translateY(-6px);
  }

  .pricing-notes {
    grid-template-columns: 1fr;
  }

  .trust__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}

.pricing-card--free .pricing-card__amount {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
}

@media (max-width: 900px) {
  .pricing-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: min(100%, 28rem);
    margin-inline: auto;
  }

  .section {
    padding-block: 72px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 16px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-card);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition:
      transform var(--transition),
      opacity var(--transition),
      visibility var(--transition);
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .site-nav a {
    display: block;
    padding: 14px 8px;
    border-bottom: 1px solid var(--border);
  }

  .header-cta {
    display: none;
  }

  .stats__grid {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .hero__demo {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .hero__demo .btn {
    width: 100%;
    align-self: stretch;
  }
}

@media (max-width: 480px) {
  .container {
    width: min(var(--container), calc(100% - 32px));
  }

  .stats__grid {
    grid-template-columns: 1fr;
  }

  .cta__card {
    padding: 48px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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