* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--font-body);
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
select {
  font: inherit;
}
button,
a,
select {
  touch-action: manipulation;
}
button,
select {
  cursor: pointer;
}
button {
  color: inherit;
}
h1,
h2,
h3,
p,
figure {
  margin: 0;
}
h1,
h2,
h3 {
  font-family: var(--font-heading);
  font-weight: 500;
  letter-spacing: -0.035em;
  text-wrap: balance;
}
p {
  text-wrap: pretty;
}
h1 {
  font-size: 72px;
  line-height: 1.03;
}
h2 {
  font-size: 36px;
  line-height: 1.15;
}
h3 {
  font-size: 24px;
  line-height: 1.3;
}
p {
  color: var(--ink-2);
}
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
button:hover,
a:hover {
  color: var(--accent);
}
.button:hover {
  background: var(--accent);
  color: var(--bg);
}
[hidden] {
  display: none !important;
}
.skip {
  position: absolute;
  left: 16px;
  top: -120px;
  padding: 12px;
  background: var(--bg);
  z-index: 20;
}
.skip:focus {
  top: 8px;
}
.header {
  max-width: 1440px;
  margin: auto;
  min-height: 96px;
  padding: 24px 40px;
  display: flex;
  gap: 32px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.brand {
  font-family: var(--font-heading);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.04em;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.logo {
  width: 24px;
  height: 28px;
}
.dark-logo {
  display: none;
}
[data-theme="dark"] .dark-logo {
  display: block;
}
[data-theme="dark"] .light-logo {
  display: none;
}
.desktop {
  display: flex;
  gap: 32px;
  margin-left: auto;
  font-size: 14px;
}
.preferences {
  display: flex;
  gap: 8px;
  margin-left: auto;
  align-items: center;
}
.preferences select,
.theme-toggle {
  color: var(--ink-2);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  min-height: 40px;
  padding: 8px;
  font-size: 12px;
}
.preferences select {
  width: 60px;
}
.theme-toggle {
  min-width: 64px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  min-height: 48px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: var(--action);
  color: var(--on-action);
  font-weight: 500;
  line-height: 24px;
  cursor: pointer;
}
.button.small {
  font-size: 14px;
  min-height: 40px;
  padding: 8px 16px;
}
.text-link {
  font-size: 14px;
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 5px;
  border: 0;
  background: transparent;
  padding: 0;
}
.hero {
  max-width: 1440px;
  margin: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 650px;
}
.hero-copy {
  padding: 80px 40px 48px;
  align-self: center;
}
.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.6;
  color: var(--accent);
  margin-bottom: 24px;
}
.hero h1 {
  max-width: 520px;
}
.intro {
  font-size: 18px;
  line-height: 1.6;
  max-width: 490px;
  margin-top: 32px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 32px;
}
.heritage {
  margin-top: 48px;
  font-size: 12px;
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--muted);
}
.mini-layers {
  font-size: 24px;
  color: var(--accent);
}
.hero-visual {
  position: relative;
  margin: 32px 32px 32px 0;
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
  min-height: 570px;
}
.hero-visual > img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  object-position: 60% center;
}
.hero-visual figcaption {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  padding: 16px 24px;
  background: var(--glass);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-line);
  border-radius: 6px;
  color: var(--ink);
  font-size: 14px;
}
.hero-visual small {
  display: block;
  font-size: 12px;
  margin-top: 4px;
  color: var(--ink-2);
}
.image-label {
  position: absolute;
  left: 24px;
  top: 24px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: #49414e;
  background: #f5f3f6e8;
  padding: 8px 12px;
  border-radius: 4px;
}
.section {
  max-width: 1280px;
  margin: auto;
  padding: 80px 40px;
}
.section-heading {
  display: flex;
  gap: 48px;
  margin-bottom: 48px;
}
.section-index {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--accent);
  padding-top: 8px;
  flex-shrink: 0;
}
.section-heading p {
  max-width: 620px;
  margin-top: 16px;
}
.analyses {
  border-top: 1px solid var(--line);
}
.modules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.module {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  min-height: 280px;
}
.module-symbol {
  color: var(--accent);
  font-family: var(--font-heading);
  font-size: 24px;
  margin-bottom: 24px;
  line-height: 1;
}
.module p {
  font-size: 14px;
  margin-top: 12px;
}
.module small {
  font-size: 12px;
  color: var(--muted);
  margin-top: auto;
  padding-top: 24px;
}
.import {
  background: var(--panel);
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  align-items: center;
  gap: 80px;
  border-radius: 8px;
  max-width: 1200px;
}
.import h2 {
  max-width: 520px;
}
.import p:not(.eyebrow) {
  margin-top: 24px;
  max-width: 560px;
}
.import .text-link {
  display: inline-block;
  margin-top: 24px;
}
.subtle {
  font-size: 12px;
  color: var(--muted);
}
.file-mark {
  width: 240px;
  min-height: 270px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  transform: rotate(-4deg);
  margin: auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.file-mark > span {
  font-size: 12px;
  color: var(--muted);
}
.file-mark strong {
  font: 500 48px/1 var(--font-heading);
  color: var(--accent);
}
.layer-bars {
  display: flex;
  height: 64px;
  gap: 8px;
}
.layer-bars i {
  flex: 1;
  background: var(--plaster);
}
.layer-bars i:nth-child(2) {
  flex: 3;
  background: var(--concrete);
}
.layer-bars i:nth-child(3) {
  flex: 2;
  background: var(--insulation);
}
.layer-bars i:nth-child(4) {
  background: var(--wood);
}
.audience {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
}
.audience img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  border-radius: 8px;
}
.audience p:not(.eyebrow) {
  margin-top: 24px;
}
.origin {
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 4fr;
  gap: 32px;
}
.origin p:not(.eyebrow) {
  max-width: 720px;
  margin-top: 24px;
}
.origin .text-link {
  display: inline-block;
  margin-top: 24px;
}
.contact {
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 64px;
}
.contact p {
  max-width: 600px;
  margin-top: 16px;
}
.contact-links {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}
.secondary {
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--line);
}
footer {
  max-width: 1440px;
  padding: 32px 40px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}
footer .brand {
  font-size: 24px;
  color: var(--ink);
}
.login-main {
  max-width: 1440px;
  margin: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: calc(100dvh - 201px);
}
.login-scene {
  margin: 24px;
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  min-height: 650px;
  background: var(--panel);
}
.login-scene > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 60% center;
  opacity: 0.45;
}
.login-scene > div {
  position: absolute;
  left: 32px;
  right: 32px;
  top: 40px;
  background: var(--glass);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-line);
  padding: 24px;
  border-radius: 6px;
}
.login-scene h2 {
  font-size: 36px;
  white-space: pre-line;
  line-height: 1.15;
}
.login-scene p:not(.eyebrow) {
  margin-top: 24px;
  max-width: 330px;
  font-size: 14px;
}
.login-content {
  padding: 32px 64px 48px;
}
.back {
  display: inline-block;
  margin-bottom: 64px;
  color: var(--muted);
}
.form-wrap {
  max-width: 400px;
  margin: auto;
}
.form-wrap h1 {
  font-size: 36px;
  line-height: 1.15;
}
.form-wrap > p:not(.eyebrow) {
  margin-top: 16px;
}
.form-wrap .eyebrow {
  margin-bottom: 16px;
}
form {
  margin-top: 32px;
}
label {
  font-size: 14px;
  font-weight: 500;
  display: block;
  margin-bottom: 8px;
}
input {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  font-size: 16px;
}
input::placeholder {
  color: var(--muted);
}
.label-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  margin-top: 24px;
}
.label-row .text-link {
  font-size: 12px;
}
.password-wrap {
  position: relative;
}
.password-wrap input {
  padding-right: 88px;
}
.password-wrap button {
  position: absolute;
  right: 4px;
  top: 4px;
  bottom: 4px;
  padding: 8px 12px;
  border: 0;
  background: transparent;
  font-size: 12px;
  border-radius: 4px;
}
.submit {
  width: 100%;
  margin-top: 32px;
}
.privacy {
  font-size: 12px;
  color: var(--muted);
}
#feedback {
  margin-top: 24px;
  border: 1px solid var(--error);
  color: var(--error);
  background: var(--error-bg);
  border-radius: 6px;
  padding: 12px 16px;
  font-size: 14px;
}
#sent-panel {
  margin: 24px 0;
  padding: 24px;
  border-radius: 6px;
  background: var(--success-bg);
  border: 1px solid var(--success);
  color: var(--success);
}
#sent-panel p {
  color: inherit;
}
#sent-panel p + p {
  margin-top: 16px;
}
#return-login {
  margin-top: 24px;
}
.preview-controls {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}
summary {
  cursor: pointer;
  min-height: 36px;
}
.preview-controls > div {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.preview-controls button {
  font-size: 12px;
  min-height: 40px;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 4px;
  padding: 8px 12px;
}
.preview-controls p {
  margin-top: 12px;
}
@media (min-width: 1441px) {
  .hero-copy {
    padding-left: 80px;
  }
}
@media (max-width: 1000px) {
  .desktop {
    gap: 16px;
  }
  .header {
    gap: 16px;
    padding: 24px;
  }
  .hero-copy {
    padding: 48px 24px;
  }
  .hero h1 {
    font-size: 60px;
  }
  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }
  .hero-visual {
    margin-right: 24px;
  }
  .import {
    margin: 0 24px;
    gap: 40px;
  }
  .login-content {
    padding: 32px;
  }
  .login-scene {
    margin-right: 0;
  }
  .contact {
    gap: 32px;
  }
}
@media (max-width: 767px) {
  .header {
    padding: 16px;
    min-height: 80px;
    gap: 12px;
    flex-wrap: wrap;
  }
  .brand {
    font-size: 24px;
    gap: 8px;
  }
  .preferences {
    gap: 4px;
  }
  .header-login {
    display: none;
  }
  .desktop {
    order: 3;
    width: 100%;
    justify-content: space-between;
    margin: 8px 0 0;
    gap: 16px;
    font-size: 14px;
  }
  .preferences select,
  .theme-toggle {
    min-height: 44px;
  }
  .hero {
    display: flex;
    flex-direction: column;
    min-height: auto;
  }
  .hero-copy {
    padding: 48px 24px 32px;
  }
  .hero h1 {
    font-size: 60px;
  }
  .eyebrow {
    font-size: 12px;
    margin-bottom: 24px;
  }
  .intro {
    font-size: 18px;
    margin-top: 24px;
  }
  .hero-actions {
    margin-top: 24px;
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
  }
  .hero-actions .button {
    padding: 12px 16px;
  }
  .heritage {
    margin-top: 32px;
  }
  .hero-visual {
    height: 390px;
    min-height: 0;
    margin: 0 16px 40px;
  }
  .hero-visual figcaption {
    left: 16px;
    right: 16px;
    bottom: 16px;
    padding: 16px;
  }
  .hero-visual small {
    line-height: 1.6;
  }
  .section {
    padding: 48px 24px;
  }
  .section-heading {
    gap: 16px;
    margin-bottom: 32px;
  }
  .section-index {
    min-width: 24px;
  }
  .section-heading h2 {
    font-size: 30px;
  }
  .section-heading p {
    font-size: 16px;
  }
  .modules {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .module {
    min-height: 0;
    padding: 24px;
  }
  .module-symbol {
    margin-bottom: 16px;
  }
  .module small {
    padding-top: 24px;
  }
  .import {
    margin: 0 16px;
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 40px 24px;
  }
  .file-mark {
    width: 200px;
    min-height: 240px;
  }
  .import h2,
  h2 {
    font-size: 30px;
  }
  .audience {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .audience img {
    height: 260px;
  }
  .origin {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .contact {
    flex-direction: column;
    align-items: flex-start;
    gap: 32px;
  }
  .contact-links {
    gap: 24px;
  }
  footer {
    padding: 24px;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
  }
  footer > span:nth-child(2) {
    order: 3;
    width: 100%;
  }
  .login-main {
    display: block;
    min-height: 0;
  }
  .login-scene {
    display: none;
  }
  .login-content {
    padding: 24px 24px 48px;
  }
  .back {
    margin-bottom: 48px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .form-wrap h1 {
    font-size: 36px;
  }
  .label-row .text-link {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .label-row {
    margin-top: 16px;
  }
  .label-row label {
    margin-bottom: 0;
  }
  .preview-controls summary {
    min-height: 44px;
  }
  .text-link {
    line-height: 1.6;
  }
  .contact-links .text-link {
    min-height: 44px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
  }
}