:root {
  --ink: #101316;
  --paper: #f4f2ed;
  --line: #d6d8d0;
  --muted: #68716b;
  --dark: #161a1c;
  --dark-soft: #202629;
  --green: #a6d969;
  --green-deep: #6fa83d;
  --orange: #f7a553;
  --blue: #7db5ee;
  font-family: "Segoe UI", "Noto Sans SC", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; color: var(--ink); background: var(--paper); }
a { color: inherit; }
button, textarea, input { font: inherit; }
button:focus-visible, a:focus-visible, textarea:focus-visible, input:focus-visible { outline: 3px solid rgba(125, 181, 238, .7); outline-offset: 3px; }
.site-shell { min-height: 100vh; }
.site-header { display: flex; justify-content: space-between; align-items: center; max-width: 1160px; margin: 0 auto; padding: 24px 28px; border-bottom: 1px solid var(--line); }
.site-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.site-brand-mark { display: grid; place-items: center; width: 34px; height: 34px; color: var(--dark); background: var(--green); font-family: Consolas, monospace; font-size: 12px; font-weight: 800; }
.site-brand strong { font-size: 18px; letter-spacing: -.06em; }
.site-brand small { display: block; margin-top: 3px; color: var(--muted); font-size: 9px; letter-spacing: .13em; text-transform: uppercase; }
.site-nav { display: flex; align-items: center; gap: 17px; color: var(--muted); font-size: 11px; }
.site-nav a { text-decoration: none; }
.site-nav a:hover { color: var(--green-deep); }
.language-pair { display: flex; gap: 5px; padding-left: 14px; border-left: 1px solid var(--line); }
.language-pair a { padding: 5px 7px; border: 1px solid transparent; }
.language-pair a.is-current { border-color: var(--line); color: var(--ink); background: rgba(255, 255, 255, .35); }
.site-main { max-width: 1160px; margin: 0 auto; padding: 0 28px 58px; }
.site-hero { display: grid; grid-template-columns: minmax(0, 1fr) 270px; gap: 60px; padding: 86px 0 72px; }
.eyebrow { margin: 0; color: var(--green-deep); font-size: 10px; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.site-hero h1 { max-width: 690px; margin: 17px 0 20px; font-size: clamp(48px, 7vw, 82px); line-height: .94; letter-spacing: -.075em; }
.site-hero h1 em { color: var(--green-deep); font-style: normal; }
.site-hero p { max-width: 580px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.hero-aside { align-self: end; padding: 18px 0 3px 19px; border-left: 1px solid var(--line); }
.hero-aside strong { display: block; margin: 7px 0; font-size: 37px; letter-spacing: -.08em; }
.hero-aside p { font-size: 11px; line-height: 1.6; }
.site-section { padding: 38px 0; border-top: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 22px; }
.section-head h2 { margin: 7px 0 0; font-size: 26px; letter-spacing: -.055em; }
.tool-directory { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.tool-link { display: flex; min-height: 160px; flex-direction: column; justify-content: space-between; padding: 16px; border: 1px solid var(--line); background: rgba(255, 255, 255, .24); text-decoration: none; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.tool-link:hover { transform: translateY(-3px); border-color: var(--green-deep); background: #eef5e4; }
.tool-code { color: var(--green-deep); font-family: Consolas, monospace; font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.tool-link strong { margin-top: 27px; font-size: 17px; letter-spacing: -.03em; }
.tool-link span:last-child { margin-top: 6px; color: var(--muted); font-size: 11px; line-height: 1.5; }
.site-note { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, 390px); gap: 45px; align-items: start; }
.site-note h2 { max-width: 430px; margin: 8px 0 0; font-size: 29px; line-height: 1.08; letter-spacing: -.06em; }
.site-note p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.site-footer { display: flex; justify-content: space-between; gap: 20px; padding: 19px 0; border-top: 1px solid var(--line); color: #929b94; font-family: Consolas, monospace; font-size: 9px; letter-spacing: .04em; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--green-deep); }

.tool-breadcrumb { padding-top: 30px; color: var(--muted); font-family: Consolas, monospace; font-size: 10px; }
.tool-breadcrumb a { text-decoration: none; }
.tool-breadcrumb a:hover { color: var(--green-deep); }
.tool-layout { display: grid; grid-template-columns: minmax(0, 1fr) 265px; gap: 54px; padding: 58px 0 70px; }
.tool-hero h1 { max-width: 750px; margin: 15px 0 16px; font-size: clamp(42px, 6vw, 70px); line-height: .96; letter-spacing: -.075em; }
.tool-hero .lede { max-width: 680px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.tool-aside { align-self: end; padding: 17px 0 0 18px; border-left: 1px solid var(--line); }
.tool-aside h2 { margin: 0 0 9px; font-size: 13px; }
.tool-aside ul { display: grid; gap: 8px; padding: 0; margin: 0; list-style: none; color: var(--muted); font-size: 11px; line-height: 1.5; }
.tool-aside li::before { content: "→"; margin-right: 7px; color: var(--orange); }
.tool-workbench { overflow: hidden; border: 1px solid #2f3738; background: var(--dark); box-shadow: 0 18px 50px rgba(30, 37, 35, .12); }
.workbench-top { display: flex; justify-content: space-between; align-items: center; padding: 12px 15px; border-bottom: 1px solid #303839; color: #9eaaa1; font-family: Consolas, monospace; font-size: 9px; letter-spacing: .12em; }
.workbench-top button, .workbench-top a { border: 0; color: var(--blue); background: transparent; font-size: 10px; text-decoration: none; letter-spacing: 0; cursor: pointer; }
.workbench-grid { display: grid; grid-template-columns: minmax(0, 1fr) 92px minmax(0, 1fr); min-height: 310px; }
.workbench-pane { display: flex; flex-direction: column; min-width: 0; padding: 16px; }
.workbench-pane.output { background: #1b2022; }
.workbench-pane textarea { flex: 1; min-height: 190px; resize: vertical; border: 0; outline: 0; color: #e9efe8; background: transparent; font-family: Consolas, monospace; font-size: 13px; line-height: 1.7; }
.workbench-pane textarea::placeholder { color: #64706a; }
.output-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; color: #9eaaa1; font-family: Consolas, monospace; font-size: 9px; letter-spacing: .12em; }
.output-head button { border: 0; color: var(--blue); background: transparent; font-family: "Segoe UI", "Noto Sans SC", Arial, sans-serif; font-size: 10px; letter-spacing: 0; cursor: pointer; }
.output-head button:hover { color: #b7dbff; }
.workbench-meta { display: flex; justify-content: space-between; gap: 10px; padding-top: 12px; color: #627069; font-family: Consolas, monospace; font-size: 9px; }
.workbench-middle { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; border-right: 1px solid #303839; border-left: 1px solid #303839; }
.run-tool { display: flex; justify-content: space-between; align-items: center; gap: 20px; min-width: 75px; padding: 11px 12px; border: 0; color: var(--dark); background: var(--green); font-size: 12px; font-weight: 800; cursor: pointer; }
.run-tool:hover { background: #b8e683; }
.run-hint { color: #5f6c64; font-family: Consolas, monospace; font-size: 8px; writing-mode: vertical-rl; letter-spacing: .12em; }
.tool-info-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 25px; }
.info-block { padding: 17px; border-top: 2px solid var(--orange); background: rgba(255, 255, 255, .25); }
.info-block h2 { margin: 0 0 9px; font-size: 14px; }
.info-block p, .info-block li { color: var(--muted); font-size: 12px; line-height: 1.75; }
.info-block p { margin: 0; }
.info-block ul { padding-left: 17px; margin: 0; }
.faq-section { padding-top: 36px; border-top: 1px solid var(--line); }
.faq-section h2 { margin: 0 0 18px; font-size: 20px; letter-spacing: -.04em; }
.faq-list { display: grid; gap: 10px; }
.faq-list details { padding: 14px 0; border-bottom: 1px solid var(--line); }
.faq-list summary { cursor: pointer; font-size: 13px; font-weight: 700; }
.faq-list p { max-width: 730px; margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.75; }
.legal-hero { padding: 72px 0 42px; }
.legal-hero h1 { margin: 14px 0 10px; font-size: clamp(44px, 7vw, 76px); line-height: .95; letter-spacing: -.075em; }
.legal-hero p:last-child { margin: 0; color: var(--muted); font-size: 12px; }
.legal-copy { max-width: 760px; padding: 35px 0 65px; border-top: 1px solid var(--line); }
.legal-copy h2 { margin: 27px 0 8px; font-size: 17px; letter-spacing: -.03em; }
.legal-copy h2:first-child { margin-top: 0; }
.legal-copy p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
.file-input { display: none; }
.toast { position: fixed; right: 22px; bottom: 22px; z-index: 5; max-width: 320px; padding: 12px 14px; border-left: 3px solid var(--green); color: #eff5eb; background: var(--dark); box-shadow: 0 12px 30px rgba(10, 12, 12, .2); font-size: 11px; opacity: 0; transform: translateY(12px); pointer-events: none; transition: opacity .2s ease, transform .2s ease; }
.toast.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 760px) {
  .site-header, .site-main { padding-right: 18px; padding-left: 18px; }
  .site-header { align-items: start; }
  .site-nav { gap: 10px; }
  .site-nav > a:first-child { display: none; }
  .site-hero, .tool-layout { display: block; }
  .site-hero { padding: 59px 0 55px; }
  .hero-aside, .tool-aside { margin-top: 35px; padding-left: 0; border-left: 0; }
  .tool-directory, .tool-info-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tool-layout { padding-top: 45px; }
  .workbench-grid { display: block; }
  .workbench-middle { flex-direction: row; justify-content: space-between; padding: 13px 16px; border-top: 1px solid #303839; border-bottom: 1px solid #303839; }
  .run-hint { writing-mode: initial; }
  .workbench-pane textarea { min-height: 150px; }
  .site-note { display: block; }
  .site-note p { margin-top: 20px; }
}
@media (max-width: 480px) {
  .site-brand small { display: none; }
  .site-nav { font-size: 10px; }
  .site-hero h1, .tool-hero h1 { font-size: 47px; }
  .tool-directory, .tool-info-grid { grid-template-columns: 1fr; }
  .site-footer { display: block; line-height: 1.9; }
}