:root {
  color-scheme: light;
  --paper: #fafafa;
  --paper-strong: #ffffff;
  --ink: #111111;
  --muted: #666666;
  --line: #eaeaea;
  --line-strong: #d4d4d4;
  --green: #718970;
  --green-deep: #4c5c4c;
  --blue: #7690bd;
  --clay: #c58b76;
  --butter: #f3edcf;
  --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.03);
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
  --max: 1200px;
  --radius: 12px;
  font-family:
    "Inter",
    "Segoe UI Variable",
    "Segoe UI",
    "HarmonyOS Sans SC",
    "Microsoft YaHei UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.6 var(--body-font, inherit);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::selection {
  background: var(--butter);
  color: var(--ink);
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(82, 120, 179, 0.55);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-140%);
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  padding: 10px 14px;
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 14px 0 0;
  background: rgba(248, 249, 244, 0.9);
  backdrop-filter: blur(16px);
}

.nav-shell {
  width: min(calc(100% - 40px), var(--max));
  min-height: 58px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  padding: 8px 12px 8px 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  font-weight: 720;
  font-size: 1rem;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  object-fit: cover;
  background: #fff;
  border: 1px solid rgba(214, 222, 209, 0.95);
  box-shadow: 0 4px 14px rgba(48, 60, 45, 0.08);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
  color: #6d746a;
  font-size: 0.92rem;
}

.nav-links a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0 14px;
  transition:
    background 160ms ease,
    color 160ms ease;
}

.nav-links a:hover {
  background: #fff;
  color: var(--ink);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.star-pill {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 0 14px;
  font-weight: 700;
  color: var(--ink);
  background: #fff;
}

.language-toggle {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  padding: 3px;
}

.language-toggle button {
  min-width: 48px;
  min-height: 32px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.language-toggle button[aria-pressed="true"] {
  background: #566b58;
  color: #fff;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 80px 0 60px;
  min-height: 0;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(113, 137, 112, 0.038) 1px, transparent 1px),
    linear-gradient(90deg, rgba(113, 137, 112, 0.034) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(460px, 1.1fr);
  align-items: center;
  gap: 50px;
}

.hero-copy {
  padding: 0;
}

.eyebrow,
.section-kicker {
  margin: 0 0 16px;
  color: var(--green-deep);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

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

h1,
h2 {
  font-family:
    "Aptos Display",
    "Segoe UI Variable Display",
    "Segoe UI",
    "HarmonyOS Sans SC",
    "Microsoft YaHei UI",
    sans-serif;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

h1 {
  margin-bottom: 24px;
  font-size: 5rem;
  letter-spacing: -0.02em;
}

.hero-lede {
  max-width: 620px;
  color: var(--muted);
  font-size: 1.25rem;
  line-height: 1.6;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 999px;
  padding: 0 24px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 1.05rem;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

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

.button.primary {
  background: var(--ink);
  color: #fff;
  padding-left: 28px;
}

.button.primary:hover {
  background: #333;
}

.button.secondary {
  color: var(--ink);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.58);
}

.button.secondary:hover {
  background: #fff;
  border-color: var(--line-strong);
}

.button-icon {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: #fff;
  color: #4c6a50;
}

.proof-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
}

.proof-row li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.proof-row .separator {
  color: var(--line-strong);
  font-weight: 700;
  user-select: none;
}

.proof-label {
  color: var(--muted);
  font-size: 0.9rem;
}

.proof-value {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 600;
}

.format-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.format-rail li {
  min-width: 84px;
  border: 1px solid rgba(42, 81, 48, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 11px;
}

.format-rail span {
  font-family: "Cascadia Mono", "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.82rem;
  font-weight: 720;
  color: var(--green-deep);
}

.format-rail small {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
}

.hero-visual {
  min-height: 540px;
  display: grid;
  align-items: center;
}

.device-stage {
  position: relative;
  height: 540px;
  width: 100%;
  isolation: isolate;
}

.device-stage::before {
  content: "";
  position: absolute;
  left: 7%;
  right: 5%;
  bottom: 2%;
  height: 38%;
  border-radius: 999px;
  background: rgba(106, 126, 101, 0.075);
  filter: blur(20px);
}

.device {
  position: absolute;
  user-select: none;
  filter: drop-shadow(0 18px 24px rgba(34, 43, 32, 0.12));
}

.device-pad {
  z-index: 1;
  right: -1%;
  bottom: 5%;
  width: 88%;
}

.device-fold {
  z-index: 2;
  left: 3%;
  bottom: 4%;
  width: 40%;
}

.device-phone {
  z-index: 3;
  right: 27%;
  bottom: 8%;
  width: 23%;
}

.section {
  padding: 100px 0;
}

.intro-strip {
  padding: 100px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.intro-center {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.intro-strip .section-kicker {
  color: var(--green-deep);
  margin-bottom: 24px;
}

.intro-text {
  margin-bottom: 0;
  font-size: 2.1rem;
  line-height: 1.4;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(250px, 0.48fr) minmax(0, 1fr);
  gap: 54px;
}

.split-section h2,
.privacy-header h2 {
  max-width: 470px;
  font-size: 3.15rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.feature-card {
  min-height: 240px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 16px;
  background: #fff;
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.feature-card h3 {
  margin: 24px 0 8px;
  font-size: 1.35rem;
  line-height: 1.2;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.5;
}

.feature-icon {
  width: 38px;
  height: 34px;
  display: inline-block;
  border-radius: 7px;
  background: var(--green);
  position: relative;
}

.feature-icon::before,
.feature-icon::after {
  content: "";
  position: absolute;
  background: #fff;
}

.feature-icon.video::before {
  width: 18px;
  height: 13px;
  left: 8px;
  top: 10px;
  border-radius: 2px;
}

.feature-icon.video::after {
  width: 9px;
  height: 11px;
  right: 5px;
  top: 11px;
  clip-path: polygon(0 20%, 100% 0, 100% 100%, 0 80%);
}

.feature-icon.audio {
  background: var(--blue);
}

.feature-icon.audio::before {
  width: 5px;
  height: 18px;
  left: 16px;
  top: 8px;
}

.feature-icon.audio::after {
  width: 12px;
  height: 9px;
  left: 9px;
  bottom: 6px;
  border-radius: 999px;
}

.feature-icon.image {
  background: var(--clay);
}

.feature-icon.image::before {
  width: 24px;
  height: 14px;
  left: 7px;
  bottom: 7px;
  clip-path: polygon(0 100%, 34% 45%, 52% 72%, 72% 30%, 100% 100%);
}

.feature-icon.pdf {
  background: var(--ink);
}

.feature-icon.pdf::before {
  inset: 8px 7px;
  border-radius: 2px;
  background: transparent;
  border: 2px solid #fff;
}

.feature-icon.pdf::after {
  content: "PDF";
  inset: auto auto 9px 9px;
  color: #fff;
  background: transparent;
  font-size: 0.55rem;
  font-weight: 900;
}

.privacy-section {
  padding-bottom: 88px;
}

.privacy-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1fr);
  gap: 60px;
  align-items: center;
}

.privacy-header {
  padding-right: 20px;
}

.privacy-header .section-kicker {
  color: var(--green-deep);
}

.privacy-card {
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 20px;
  background: #fff;
  padding: 44px;
  box-shadow: var(--shadow-sm);
}

.privacy-body {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--muted);
  margin-bottom: 36px;
}

.workflow {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.workflow li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: 12px;
  background: var(--paper);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
}

.step-num {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 34px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(230px, 0.8fr) minmax(160px, 0.4fr) minmax(280px, 1fr);
  gap: 28px;
  align-items: start;
}

.footer-brand {
  margin-bottom: 12px;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a {
  color: var(--green-deep);
  font-weight: 800;
}

.legal {
  font-size: 0.9rem;
}

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

@media (max-width: 1020px) {
  .hero-grid,
  .split-section,
  .privacy-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 54px;
  }

  .hero-copy {
    padding-top: 28px;
  }

  h1 {
    font-size: 4.25rem;
  }

  .hero-visual {
    min-height: 500px;
  }

  .device-stage {
    height: 500px;
  }

  .device-pad {
    width: 88%;
    right: -2%;
    bottom: 6%;
  }

  .device-fold {
    width: 42%;
    left: 3%;
    bottom: 5%;
  }

.device-phone {
  width: 24%;
  right: 24%;
  bottom: 9%;
}

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

  .intro-text {
    font-size: 1.72rem;
  }
}

@media (max-width: 760px) {
  .shell,
  .nav-shell {
    width: min(calc(100% - 28px), var(--max));
  }

  .site-header {
    padding-top: 10px;
  }

  .nav-shell {
    min-height: 0;
    border-radius: 24px;
    flex-wrap: wrap;
    padding: 10px;
  }

  .brand {
    flex: 1 1 auto;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: space-between;
  }

  .nav-links a {
    flex: 1;
    justify-content: center;
    padding: 0 8px;
  }

  .star-pill {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 34px 0 22px;
  }

  .eyebrow,
  .section-kicker {
    font-size: 0.78rem;
  }

  h1 {
    font-size: 3.28rem;
    margin-bottom: 16px;
  }

  .hero-lede {
    font-size: 1.08rem;
    margin-bottom: 22px;
  }

  .hero-actions {
    flex-wrap: nowrap;
    gap: 8px;
    margin-bottom: 14px;
  }

  .button {
    width: auto;
    min-width: 0;
    padding-inline: 12px;
  }

  .button.primary {
    flex: 1.3;
    padding-left: 14px;
  }

  .button.secondary {
    flex: 0.9;
  }

  .proof-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
    margin-bottom: 0;
  }

  .proof-row div {
    min-height: 62px;
    padding: 9px 10px;
  }

  .proof-row dt {
    font-size: 0.68rem;
  }

  .proof-row dd {
    font-size: 0.9rem;
  }

  .format-rail {
    display: none;
  }

  .hero-visual {
    min-height: 300px;
    margin-top: 8px;
  }

  .device-stage {
    height: 300px;
  }

  .device-stage::before {
    left: 4%;
    right: 4%;
    bottom: 6%;
    width: auto;
  }

  .device-pad {
    width: 102%;
    right: -18%;
    bottom: 8%;
  }

  .device-fold {
    width: 56%;
    left: -10%;
    bottom: 7%;
  }

.device-phone {
  width: 32%;
  right: 13%;
  bottom: 13%;
  top: auto;
}

  .section {
    padding: 54px 0;
  }

  .intro-strip {
    padding-top: 24px;
  }

  .intro-text {
    font-size: 1.34rem;
  }

  .split-section h2,
  .privacy-panel h2 {
    font-size: 2.34rem;
  }

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

  .feature-card {
    min-height: 190px;
  }

  .privacy-panel,
  .privacy-copy {
    padding: 24px;
  }

  .privacy-panel {
    min-height: 260px;
  }

  .privacy-copy p {
    font-size: 1.12rem;
  }
}

@media (max-width: 430px) {
  h1 {
    font-size: 2.76rem;
  }

  .hero-visual {
    min-height: 250px;
  }

  .device-stage {
    height: 250px;
  }

  .device-pad {
    width: 108%;
    right: -22%;
    bottom: 8%;
  }

  .device-fold {
    width: 60%;
    left: -14%;
    bottom: 7%;
  }

.device-phone {
  width: 35%;
  right: 10%;
  bottom: 13%;
}
}

@media (max-width: 360px) {
  .hero-actions {
    flex-wrap: wrap;
  }

  .button {
    width: 100%;
    flex: auto;
  }
}