/*
 * SnowHR marketing site — page styles.
 *
 * Built entirely on the semantic tokens in tokens.css so the site reads as the
 * same product family as the SnowHR app. Marketing surfaces are allowed more
 * scale than admin screens, but the color, type, radius, and shadow language is
 * identical to the product.
 */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--snow-font-family-sans);
  font-size: var(--snow-type-size-body);
  line-height: var(--snow-type-line-height-body);
  color: var(--snow-color-text-default);
  background-color: var(--snow-color-surface-page);
  background-image:
    radial-gradient(
      ellipse 70% 55% at 12% -10%,
      rgba(20, 125, 255, 0.1),
      transparent 70%
    ),
    radial-gradient(
      ellipse 45% 40% at 92% 2%,
      rgba(255, 122, 89, 0.08),
      transparent 70%
    );
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
}

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

h1,
h2,
h3 {
  font-weight: var(--snow-type-weight-bold);
  letter-spacing: -0.022em;
  text-wrap: balance;
}

a {
  color: inherit;
}

:where(a, button):focus-visible {
  outline: none;
  box-shadow: var(--snow-shadow-focus);
  border-radius: var(--snow-radius-sm);
}

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

/* ---------------------------------------------------------------- layout - */

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

.section {
  padding-left: clamp(var(--snow-space-md), 4vw, var(--snow-space-3xl));
  padding-right: clamp(var(--snow-space-md), 4vw, var(--snow-space-3xl));
}

/* ------------------------------------------------------------- buttons - */
/* Mirrors the product contract in src/styles/admin-components.css. */

.snow-btn-primary,
.snow-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: calc(var(--snow-space-xs) + var(--snow-space-2xs));
  padding: calc(var(--snow-space-xs) + var(--snow-space-2xs))
    calc(var(--snow-space-sm) + var(--snow-space-xs));
  border-radius: var(--snow-radius-sm);
  font-family: inherit;
  font-size: var(--snow-type-size-label);
  font-weight: var(--snow-type-weight-semibold);
  line-height: 1.5;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  appearance: none;
  transition:
    background-color 120ms ease,
    border-color 120ms ease;
}

.snow-btn-primary {
  border: 1px solid var(--snow-color-action-primary-border);
  background: var(--snow-color-action-primary-background);
  color: var(--snow-color-action-primary-text);
}

.snow-btn-primary:hover {
  background: var(--snow-color-action-primary-hover-background);
  border-color: var(--snow-color-action-primary-hover-background);
}

.snow-btn-secondary {
  border: 1px solid var(--snow-color-border-default);
  background: var(--snow-color-surface-overlay);
  color: var(--snow-color-text-default);
}

.snow-btn-secondary:hover {
  background: var(--snow-color-table-row-hover);
  border-color: var(--snow-color-action-secondary-border);
}

/* Marketing-scale modifier: same button family, more presence on a landing page. */
.snow-btn-lg {
  padding: calc(var(--snow-space-sm) + var(--snow-space-2xs))
    var(--snow-space-lg);
  font-size: 0.9375rem;
  min-height: 44px;
}

/* ------------------------------------------------------------------ nav - */

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--snow-space-md);
  padding-top: var(--snow-space-md);
  padding-bottom: var(--snow-space-md);
}

.brand {
  display: flex;
  align-items: center;
  gap: calc(var(--snow-space-sm) + var(--snow-space-2xs));
  font-size: 1.5rem;
  font-weight: var(--snow-type-weight-bold);
  letter-spacing: -0.025em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  border-radius: var(--snow-radius-sm);
  background: linear-gradient(
    135deg,
    var(--snow-color-assistant-gradient-start),
    var(--snow-color-assistant-gradient-end)
  );
  color: var(--snow-color-text-inverse);
  box-shadow: var(--snow-shadow-sm);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--snow-space-2xs);
  font-size: var(--snow-type-size-label);
  font-weight: var(--snow-type-weight-medium);
  color: var(--snow-color-text-muted);
}

.nav-links a:not(.nav-cta) {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: var(--snow-space-sm) var(--snow-space-md);
  border-radius: var(--snow-radius-sm);
  text-decoration: none;
}

.nav-links a:not(.nav-cta):hover {
  color: var(--snow-color-text-default);
  background: var(--snow-color-table-row-hover);
}

.nav-cta {
  margin-left: var(--snow-space-sm);
}

/* ----------------------------------------------------------------- hero - */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--snow-space-2xl);
  align-items: start;
  padding-top: var(--snow-space-2xl);
  padding-bottom: var(--snow-space-2xl);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--snow-space-sm);
  margin-bottom: var(--snow-space-lg);
  padding: var(--snow-space-xs) calc(var(--snow-space-sm) + var(--snow-space-xs));
  border: 1px solid var(--snow-color-border-default);
  border-radius: var(--snow-radius-full);
  background: var(--snow-color-surface-overlay);
  font-size: var(--snow-type-size-compact-label);
  font-weight: var(--snow-type-weight-bold);
  letter-spacing: var(--snow-type-letter-spacing-compact-label);
  text-transform: uppercase;
  color: var(--snow-color-action-secondary-text);
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: var(--snow-radius-full);
  background: var(--snow-color-assistant-primary);
}

h1 {
  font-size: clamp(2.5rem, 4.6vw, 3.75rem);
  line-height: 1.05;
  max-width: 14ch;
}

.hero-copy > p {
  margin-top: var(--snow-space-lg);
  max-width: 54ch;
  color: var(--snow-color-text-muted);
  font-size: 1.0625rem;
  line-height: 1.65;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--snow-space-sm);
  margin-top: var(--snow-space-xl);
}

.micro-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--snow-space-sm);
  margin-top: var(--snow-space-xl);
  padding-top: var(--snow-space-xl);
  border-top: 1px solid var(--snow-color-border-default);
}

.micro-proof strong {
  display: block;
  margin-bottom: var(--snow-space-xs);
  font-size: var(--snow-type-size-label);
  font-weight: var(--snow-type-weight-semibold);
}

.micro-proof span {
  color: var(--snow-color-text-muted);
  font-size: var(--snow-type-size-label);
  line-height: 1.5;
}

/* -------------------------------------------------------------- diagram - */

.diagram {
  position: relative;
  display: grid;
  gap: var(--snow-space-xs);
  padding: var(--snow-space-md);
  border-radius: var(--snow-radius-xl);
  overflow: hidden;
  background: linear-gradient(158deg, #14202b 0%, #16304d 100%);
  box-shadow: var(--snow-shadow-lg);
}

.diagram::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(20, 125, 255, 0.14) 1px, transparent 1px),
    linear-gradient(rgba(20, 125, 255, 0.14) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse 100% 80% at 50% 0%, #000, transparent 75%);
  pointer-events: none;
}

.diagram-label {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--snow-space-sm);
  margin-bottom: var(--snow-space-xs);
  font-size: var(--snow-type-size-compact-label);
  font-weight: var(--snow-type-weight-bold);
  letter-spacing: var(--snow-type-letter-spacing-compact-label);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
}

.node {
  position: relative;
  padding: calc(var(--snow-space-sm) + var(--snow-space-xs)) var(--snow-space-md);
  border-radius: var(--snow-radius-md);
  border: 1px solid var(--snow-color-border-default);
  background: var(--snow-color-surface-overlay);
  box-shadow: var(--snow-shadow-md);
}

.node-head {
  display: flex;
  align-items: center;
  gap: var(--snow-space-sm);
  margin-bottom: var(--snow-space-sm);
}

.node-icon {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  border-radius: var(--snow-radius-sm);
  background: var(--snow-color-assistant-surface);
  color: var(--snow-color-action-secondary-text);
}

.node small {
  font-size: var(--snow-type-size-compact-label);
  font-weight: var(--snow-type-weight-bold);
  letter-spacing: var(--snow-type-letter-spacing-compact-label);
  text-transform: uppercase;
  color: var(--snow-color-text-subtle);
}

.node h3 {
  margin-bottom: var(--snow-space-xs);
  font-size: 1rem;
  line-height: 1.35;
  letter-spacing: -0.012em;
}

.node p {
  color: var(--snow-color-text-muted);
  font-size: var(--snow-type-size-label);
  line-height: 1.55;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--snow-space-xs);
  margin-top: var(--snow-space-sm);
}

.node-head {
  margin-bottom: var(--snow-space-xs);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--snow-space-2xs) var(--snow-space-sm);
  border-radius: var(--snow-radius-full);
  background: var(--snow-color-status-neutral-background);
  border: 1px solid var(--snow-color-border-default);
  font-size: var(--snow-type-size-compact-label);
  font-weight: var(--snow-type-weight-semibold);
  color: var(--snow-color-text-muted);
}

.tag.accent {
  background: var(--snow-color-assistant-surface);
  border-color: transparent;
  color: var(--snow-color-action-secondary-text);
}

/* The AI node is the assistant surface: product blue gradient, never purple. */
.node-assistant {
  border-color: transparent;
  background: linear-gradient(
    135deg,
    var(--snow-color-assistant-gradient-start),
    var(--snow-color-assistant-gradient-end)
  );
  color: var(--snow-color-text-inverse);
}

.node-assistant small,
.node-assistant p {
  color: rgba(255, 255, 255, 0.82);
}

.node-assistant h3 {
  color: var(--snow-color-text-inverse);
}

.node-assistant .node-icon {
  background: rgba(255, 255, 255, 0.18);
  color: var(--snow-color-text-inverse);
}

.node-assistant .tag {
  background: rgba(255, 255, 255, 0.16);
  border-color: transparent;
  color: var(--snow-color-text-inverse);
}

.flow-arrow {
  display: grid;
  place-items: center;
  height: 14px;
  color: rgba(255, 255, 255, 0.38);
}

/* ------------------------------------------------------------ trust bar - */

.trust-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--snow-space-md);
  padding-top: var(--snow-space-xl);
  padding-bottom: var(--snow-space-2xl);
}

.trust-bar article {
  padding: var(--snow-space-md);
  border: 1px solid var(--snow-color-border-default);
  border-radius: var(--snow-radius-md);
  background: var(--snow-color-surface-elevated);
}

.trust-icon {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-bottom: var(--snow-space-sm);
  border-radius: var(--snow-radius-sm);
  background: var(--snow-color-assistant-surface);
  color: var(--snow-color-action-secondary-text);
}

.trust-bar strong {
  display: block;
  margin-bottom: var(--snow-space-xs);
  font-size: var(--snow-type-size-label);
  font-weight: var(--snow-type-weight-semibold);
}

.trust-bar span {
  color: var(--snow-color-text-muted);
  font-size: var(--snow-type-size-label);
  line-height: 1.5;
}

/* -------------------------------------------------------------- proof - */

.section-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--snow-space-xl);
  align-items: end;
  padding-top: var(--snow-space-2xl);
  padding-bottom: var(--snow-space-xl);
  border-top: 1px solid var(--snow-color-border-default);
}

.section-header h2 {
  font-size: clamp(1.875rem, 3.2vw, 2.5rem);
  line-height: 1.15;
  max-width: 18ch;
}

.section-header p {
  color: var(--snow-color-text-muted);
  font-size: 1.0625rem;
  line-height: 1.65;
  max-width: 58ch;
}

.proof-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--snow-space-md);
  padding-bottom: var(--snow-space-2xl);
  align-items: stretch;
}

.proof-card {
  display: flex;
  flex-direction: column;
  padding: var(--snow-space-lg);
  border: 1px solid var(--snow-color-border-default);
  border-radius: var(--snow-radius-lg);
  background: var(--snow-color-surface-elevated);
  box-shadow: var(--snow-shadow-sm);
}

.proof-card .trust-icon {
  margin-bottom: var(--snow-space-md);
}

.proof-card h3 {
  margin-bottom: var(--snow-space-sm);
  font-size: 1.1875rem;
  line-height: 1.3;
}

.proof-card p {
  color: var(--snow-color-text-muted);
  font-size: var(--snow-type-size-label);
  line-height: 1.6;
}

/* --------------------------------------------------------- walkthrough - */

.walkthrough {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: var(--snow-space-xl);
  padding-top: var(--snow-space-2xl);
  padding-bottom: var(--snow-space-2xl);
  border-top: 1px solid var(--snow-color-border-default);
}

.walkthrough h2 {
  font-size: clamp(1.875rem, 3.2vw, 2.5rem);
  line-height: 1.15;
  max-width: 16ch;
}

.walkthrough-intro p {
  margin-top: var(--snow-space-md);
  max-width: 46ch;
  color: var(--snow-color-text-muted);
  line-height: 1.65;
}

/* Sequence reuses the product's divided-row list rhythm. */
.sequence {
  border: 1px solid var(--snow-color-border-default);
  border-radius: var(--snow-radius-md);
  background: var(--snow-color-surface-elevated);
  overflow: hidden;
}

.sequence article {
  display: grid;
  grid-template-columns: 32px 200px 1fr;
  gap: var(--snow-space-md);
  align-items: start;
  padding: var(--snow-space-md) var(--snow-space-lg);
}

.sequence article + article {
  border-top: 1px solid var(--snow-color-border-default);
}

.sequence article:hover {
  background: var(--snow-color-table-row-hover);
}

.step-index {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: var(--snow-radius-full);
  background: var(--snow-color-assistant-surface);
  font-family: var(--snow-font-family-mono);
  font-size: var(--snow-type-size-compact-label);
  font-weight: var(--snow-type-weight-semibold);
  color: var(--snow-color-text-technical);
}

.sequence strong {
  font-size: var(--snow-type-size-label);
  font-weight: var(--snow-type-weight-semibold);
}

.sequence p {
  color: var(--snow-color-text-muted);
  font-size: var(--snow-type-size-label);
  line-height: 1.55;
}

/* ------------------------------------------------------------------ cta - */

.closing-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--snow-space-lg);
  margin-left: clamp(var(--snow-space-md), 4vw, var(--snow-space-3xl));
  margin-right: clamp(var(--snow-space-md), 4vw, var(--snow-space-3xl));
  margin-bottom: var(--snow-space-2xl);
  padding: var(--snow-space-xl);
  border-radius: var(--snow-radius-xl);
  background: linear-gradient(158deg, #14202b 0%, #16304d 100%);
  color: var(--snow-color-text-inverse);
  box-shadow: var(--snow-shadow-lg);
}

.closing-cta h2 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  line-height: 1.2;
  max-width: 22ch;
}

.closing-cta p {
  margin-top: var(--snow-space-sm);
  max-width: 48ch;
  color: rgba(255, 255, 255, 0.72);
  font-size: var(--snow-type-size-label);
}

.closing-cta .snow-btn-secondary {
  background: var(--snow-color-surface-overlay);
  border-color: transparent;
  color: var(--snow-color-text-default);
}

/* --------------------------------------------------------------- footer - */

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--snow-space-md);
  align-items: center;
  padding-top: var(--snow-space-lg);
  padding-bottom: var(--snow-space-xl);
  border-top: 1px solid var(--snow-color-border-default);
  color: var(--snow-color-text-muted);
  font-size: var(--snow-type-size-label);
}

.footer strong {
  color: var(--snow-color-text-default);
  font-weight: var(--snow-type-weight-semibold);
}

/* ---------------------------------------------------------- responsive - */

@media (max-width: 1100px) {
  .hero,
  .section-header,
  .walkthrough {
    grid-template-columns: 1fr;
  }

  .section-header {
    align-items: start;
  }

  h1 {
    max-width: 18ch;
  }

  .trust-bar,
  .proof-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .nav-links a:not(.nav-cta) {
    display: none;
  }

  .nav-cta {
    margin-left: 0;
  }

  .micro-proof,
  .trust-bar,
  .proof-cards {
    grid-template-columns: 1fr;
  }

  .sequence article {
    grid-template-columns: 24px 1fr;
    row-gap: var(--snow-space-xs);
  }

  .sequence article p {
    grid-column: 2;
  }

  .cta-row .snow-btn-primary,
  .cta-row .snow-btn-secondary {
    flex: 1 1 auto;
  }
}

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

  * {
    transition-duration: 0.01ms !important;
  }
}