@import url("./tokens/colors.css");
@import url("./tokens/spacing.css");
@import url("./tokens/effects.css");

@font-face {
  font-family: "Space Grotesk";
  src: url("fonts/space-grotesk-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-ui: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius-control: 8px;
  --radius-card: 12px;
  --page: 1120px;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font: 400 16px/1.6 var(--font-ui);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

a {
  color: var(--accent-text);
}

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

/* ---- header ---- */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  text-decoration: none;
  font: 600 18px/1 var(--font-display);
  letter-spacing: -0.03em;
}

.brand svg {
  width: 28px;
  height: 28px;
}

.seal-line {
  stroke: currentColor;
}

.seal-beak {
  stroke: var(--accent-text);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--text-secondary);
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 16px;
  height: 2px;
  background: var(--line-accent);
}

/* ---- hero ---- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 64px;
  align-items: center;
  padding-block: 72px 96px;
}

.hero h1 {
  margin-top: 20px;
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.lede {
  margin-top: 20px;
  max-width: 34em;
  color: var(--text-secondary);
  font-size: 18px;
}

/* ---- form ---- */
.signup {
  margin-top: 32px;
  max-width: 520px;
}

.signup .fields {
  display: flex;
  gap: 8px;
}

.signup label.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.signup input[type="email"],
.signup select {
  height: 48px;
  min-width: 0;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  background: var(--surface);
  color: var(--text-primary);
  font: 400 16px/1 var(--font-ui);
  transition:
    border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

.signup input[type="email"] {
  flex: 1;
}

.signup input::placeholder {
  color: var(--text-muted);
}

.signup select {
  margin-top: 8px;
  width: 100%;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position:
    calc(100% - 20px) 21px,
    calc(100% - 15px) 21px;
  background-size:
    5px 5px,
    5px 5px;
  background-repeat: no-repeat;
}

.hp {
  position: absolute;
  left: -9999px;
  height: 0;
  overflow: hidden;
}

button.cta {
  height: 48px;
  padding: 0 22px;
  border: 0;
  border-radius: var(--radius-control);
  background: var(--accent-solid);
  color: var(--accent-contrast);
  font: 500 16px/1 var(--font-ui);
  cursor: pointer;
  white-space: nowrap;
  transition:
    background-color var(--duration-fast) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard);
}

button.cta:hover {
  background: var(--accent-hover);
}

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

button.cta:disabled {
  opacity: 0.6;
  cursor: progress;
}

input:focus-visible,
select:focus-visible,
button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.signup input:focus-visible,
.signup select:focus-visible {
  border-color: var(--focus);
}

.hint {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 14px;
}

.status {
  min-height: 24px;
  margin-top: 12px;
  font-size: 15px;
  font-weight: 500;
}

.status[data-tone="ok"] {
  color: var(--positive-ink);
}

.status[data-tone="error"] {
  color: var(--danger-ink);
}

.status[data-tone="ok"]::before,
.status[data-tone="error"]::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border-radius: 50%;
  background: currentColor;
}

/* ---- product visual: the approval moment ---- */
.stage {
  position: relative;
  padding: 8px;
}

.chat {
  padding: 18px 20px 44px;
  border-radius: var(--radius-card);
  background: var(--neutral-950);
  color: var(--neutral-50);
  font: 400 14px/1.6 var(--font-mono);
  box-shadow: var(--shadow-md);
}

.chat .who {
  color: var(--neutral-400);
}

.chat .agent {
  margin-top: 10px;
  color: var(--neutral-300);
}

.approval {
  position: relative;
  margin: -28px 0 0 36px;
  padding: 20px;
  border-radius: var(--radius-card);
  background: var(--surface-raised);
  box-shadow: var(--shadow-md);
}

.approval .row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.approval strong {
  font: 600 18px/1.2 var(--font-display);
  letter-spacing: -0.02em;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.approval .time,
.approval .tool {
  color: var(--text-secondary);
  font-size: 13px;
}

.approval .tool {
  margin-top: 6px;
}

.approval p {
  margin-top: 6px;
}

.approval .actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.fake-btn {
  padding: 9px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  font: 500 14px/1 var(--font-ui);
}

.fake-btn.primary {
  border-color: transparent;
  background: var(--accent-solid);
  color: var(--accent-contrast);
}

/* ---- sections ---- */
section.block {
  padding-block: 88px;
  border-top: 1px solid var(--border-subtle);
}

section.block h2 {
  margin-top: 16px;
  max-width: 18em;
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.1;
}

.steps,
.points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 48px 0 0;
  padding: 0;
  list-style: none;
}

.card {
  padding: 28px;
  border-radius: var(--radius-card);
  background: var(--surface-raised);
  box-shadow: var(--shadow-sm);
}

.card .n {
  color: var(--accent-text);
  font: 500 13px/1 var(--font-mono);
  letter-spacing: 0.14em;
}

.card h3 {
  margin-top: 14px;
  font-size: 22px;
  line-height: 1.2;
}

.card p {
  margin-top: 10px;
  color: var(--text-secondary);
}

.faq {
  max-width: 760px;
  margin-top: 40px;
}

.faq details {
  padding-block: 18px;
  border-top: 1px solid var(--border-subtle);
}

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

.faq summary {
  cursor: pointer;
  font: 600 18px/1.4 var(--font-display);
  letter-spacing: -0.02em;
}

.faq details p {
  margin-top: 10px;
  color: var(--text-secondary);
}

.final {
  padding-block: 96px;
  text-align: left;
}

.final h2 {
  margin-top: 16px;
  max-width: 14em;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.05;
}

footer {
  padding-block: 40px 56px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 14px;
}

footer .row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  justify-content: space-between;
}

footer p {
  max-width: 46em;
}

/* ---- entrance (once, subtle) ---- */
@media (prefers-reduced-motion: no-preference) {
  .hero > * {
    animation: rise 480ms var(--ease-standard) both;
  }
  .hero > .stage {
    animation-delay: 100ms;
  }
  @keyframes rise {
    from {
      opacity: 0;
      transform: translateY(8px);
    }
  }
}

/* ---- responsive ---- */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
    padding-block: 40px 64px;
  }
  .steps,
  .points {
    grid-template-columns: minmax(0, 1fr);
  }
  section.block {
    padding-block: 64px;
  }
}

@media (max-width: 520px) {
  .signup .fields {
    flex-direction: column;
  }
  .signup input[type="email"] {
    flex: none;
    width: 100%;
  }
  button.cta {
    width: 100%;
  }
  .approval {
    margin-left: 12px;
  }
}