styles.css

:root {
  --bg: #f6f4ef;
  --bg-deep: #edeae3;
  --surface: #faf9f6;
  --surface-strong: #ffffff;
  --surface-dark: rgba(25, 31, 52, 0.82);
  --ink: #1a2340;
  --muted: #56627f;
  --line: rgba(33, 42, 74, 0.12);
  --line-strong: rgba(33, 42, 74, 0.2);
  --blue: #4a7cff;
  --shadow-soft: 0 16px 40px rgba(24, 33, 68, 0.1);
  --shadow-strong: 0 28px 80px rgba(24, 33, 68, 0.18);
  --radius-xl: 20px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --max-width: 1180px;
  --font-sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-sans);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

.page-shell {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 20px;
  padding: 12px 16px 12px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
  box-shadow: var(--shadow-soft);
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand {
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  box-shadow: var(--shadow-soft);
}

.brand-wordmark {
  font-size: 1.05rem;
  font-weight: 500;
}

.site-nav {
  display: inline-flex;
  gap: 22px;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-nav a:hover,
.footer-links a:hover {
  color: var(--ink);
}

.section {
  padding: 88px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  align-items: center;
  gap: 48px;
  min-height: calc(100vh - 110px);
  padding-top: 24px;
}

.eyebrow,
.persona-label,
.showcase-kicker,
.workflow-index,
.capability-index {
  margin: 0 0 14px;
  color: #5267d8;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p,
blockquote {
  margin-top: 0;
}

h1,
h2,
.manifesto-section blockquote {
  font-weight: 500;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(2.6rem, 4.8vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

h1 em {
  font-style: normal;
  font-weight: 600;
  color: var(--blue);
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.22rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.hero-text,
.section-text,
.trust-band p,
.persona-card p,
.showcase-copy p,
.capability-card p,
.workflow-card p,
.download-copy p,
.site-footer p,
.hero-note,
.floating-card span {
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.72;
}

.capability-card code {
  padding: 2px 7px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-strong);
  color: var(--muted);
  font-family: "SF Mono", ui-monospace, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9em;
}

.hero-actions,
.download-actions-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions {
  margin-top: 28px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.meta-pill {
  padding: 10px 14px;
  border: 1px solid rgba(74, 124, 255, 0.18);
  border-radius: var(--radius-md);
  background: rgba(245, 248, 255, 0.72);
  color: #3f4e74;
  font-size: 0.92rem;
}

.meta-pill-accent {
  border-color: rgba(74, 124, 255, 0.22);
  background: rgba(245, 248, 255, 0.72);
  color: #33458d;
}

.hero-note {
  margin-top: 14px;
  font-size: 0.94rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: 0.94rem;
  font-weight: 600;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 12px 28px rgba(63, 121, 244, 0.24);
}

.button-primary:hover {
  box-shadow: 0 22px 44px rgba(63, 121, 244, 0.34);
}

.button-secondary,
.button-ghost {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.56);
}

.button-small {
  min-height: 38px;
  padding: 0 14px;
  font-size: 0.88rem;
}

.hero-stage {
  position: relative;
  padding: 20px 0 40px;
}

.video-shell,
.persona-card,
.showcase-card,
.capability-card,
.workflow-card,
.trust-band,
.download-panel,
.manifesto-section blockquote,
.floating-card {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.video-shell {
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--surface-strong);
  box-shadow: var(--shadow-strong);
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 249, 255, 0.8);
}

.window-label {
  color: #516070;
  font-size: 0.88rem;
  font-weight: 600;
}

.traffic-lights {
  display: inline-flex;
  gap: 7px;
}

.traffic-lights span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.traffic-lights span:first-child {
  background: #ff6b6b;
}

.traffic-lights span:nth-child(2) {
  background: #f5c35d;
}

.traffic-lights span:nth-child(3) {
  background: #70d39d;
}

.intro-video {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #eef1f5;
}

.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 230px;
  padding: 11px 12px;
  border-radius: var(--radius-md);
}

.floating-card img {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  flex: 0 0 auto;
}

.floating-card strong {
  display: block;
  margin-bottom: 3px;
  font-size: 0.88rem;
}

.floating-card span {
  font-size: 0.9rem;
  line-height: 1.5;
}

.floating-card-left {
  left: -56px;
  bottom: 48px;
}

.floating-card-right {
  top: 28px;
  right: -48px;
}

.trust-band {
  width: min(100%, 860px);
  margin-inline: auto;
  padding: 32px 36px;
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.trust-band p {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  line-height: 1.5;
  letter-spacing: -0.02em;
}

.section-heading {
  max-width: 720px;
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 400px);
  gap: 28px;
  align-items: end;
  max-width: none;
}

.persona-grid,
.capability-grid,
.workflow-rail {
  display: grid;
  gap: 20px;
}

.persona-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 36px;
}

.persona-card {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  padding: 26px;
  border-radius: var(--radius-lg);
}

.persona-card img {
  width: 112px;
  height: 112px;
  border-radius: var(--radius-md);
  box-shadow: 0 18px 34px rgba(49, 74, 122, 0.14);
}

.persona-card-main,
.persona-card-alt {
  background: var(--surface);
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 18px;
  margin-top: 36px;
}

.showcase-card {
  overflow: hidden;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
}

.showcase-card img,
.showcase-card video {
  width: 100%;
  margin-top: auto;
  border-top: 1px solid var(--line);
}

.showcase-video {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #eef1f5;
}

.showcase-card-large {
  grid-column: 1 / 5;
  grid-row: 1;
}

.showcase-card-side {
  grid-column: 5 / 7;
  grid-row: 1;
}

.showcase-copy {
  padding: 22px 22px 16px;
}

.compact-image {
  max-height: 320px;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.5);
}

.capability-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 36px;
}

.capability-card {
  padding: 26px;
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.workflow-rail {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
  position: relative;
}

.workflow-card {
  position: relative;
  padding: 28px 26px;
  border-radius: var(--radius-lg);
}

.workflow-card:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -14px;
  transform: translateY(-50%);
  color: var(--blue);
  font-size: 1.1rem;
  font-weight: 600;
  z-index: 1;
}

.manifesto-section {
  padding-top: 24px;
}

.manifesto-section blockquote {
  margin: 0;
  padding: 48px 44px;
  border-radius: var(--radius-xl);
  font-size: clamp(1.8rem, 3.1vw, 2.8rem);
  line-height: 1.18;
  letter-spacing: -0.05em;
}

.download-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 36px;
  border-radius: var(--radius-xl);
  background: var(--surface-strong);
}

.download-actions-panel {
  justify-content: flex-end;
}

.site-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 56px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  margin-top: 12px;
}

.footer-links {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 18px;
}

@media (max-width: 1080px) {
  .hero,
  .split-heading,
  .persona-grid,
  .workflow-rail,
  .download-panel,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .showcase-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .showcase-card-large,
  .showcase-card-side {
    grid-column: auto;
    grid-row: auto;
  }

  .hero {
    min-height: auto;
    padding-top: 32px;
  }

  .download-actions-panel {
    justify-content: flex-start;
  }

  .site-footer {
    display: grid;
  }

  .workflow-card:not(:last-child)::after {
    display: none;
  }

  .floating-card-left {
    left: -24px;
    bottom: 24px;
  }

  .floating-card-right {
    top: 20px;
    right: -24px;
  }
}

@media (max-width: 1080px) and (min-width: 721px) {
  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .capability-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .page-shell {
    width: min(calc(100% - 24px), var(--max-width));
  }

  .site-header {
    top: 10px;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 22px;
  }

  .brand {
    min-width: 0;
    gap: 10px;
  }

  .brand-wordmark {
    font-size: 0.95rem;
  }

  .site-nav {
    min-width: 0;
    justify-content: flex-start;
    flex-wrap: nowrap;
    gap: 10px;
    font-size: 0.82rem;
  }

  .site-nav a {
    white-space: nowrap;
  }

  .site-header > .button-small {
    width: auto;
    min-height: 36px;
    padding: 0 11px;
    font-size: 0.82rem;
    white-space: nowrap;
  }

  .section {
    padding: 64px 0;
  }

  .persona-card {
    grid-template-columns: 1fr;
  }

  .persona-card img {
    width: 96px;
    height: 96px;
  }

  .floating-card {
    position: static;
    max-width: none;
    margin-top: 14px;
  }

  .hero-stage {
    padding-bottom: 0;
  }
}

@media (max-width: 560px) {
  h1 {
    font-size: 2.3rem;
  }

  h2 {
    font-size: 2rem;
  }

  .site-header {
    display: none;
  }

  .button,
  .button-small {
    width: 100%;
  }

  .hero-actions,
  .download-actions-panel {
    flex-direction: column;
  }

  .brand {
    gap: 8px;
  }

  .brand-icon {
    width: 28px;
    height: 28px;
  }

  .brand-wordmark {
    font-size: 0.88rem;
  }

  .persona-card,
  .showcase-copy,
  .capability-card,
  .workflow-card,
  .download-panel,
  .manifesto-section blockquote {
    padding-left: 18px;
    padding-right: 18px;
  }

  .trust-band {
    padding: 22px 20px 22px 30px;
  }

  .trust-band::before {
    top: 18px;
    bottom: 18px;
    left: 14px;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
  }

  .button:hover {
    transform: none;
  }
}