/*
 * MiniLink multipage shell (MINI-003A).
 * Visual identity follows the Concept Preview (paper / ink / lime / coral / blue,
 * mono labels, heavy display type). No external fonts, no CDN: system font stacks
 * stand in for Archivo Black / DM Mono / DM Sans.
 */
:root {
  --paper: #f2f0e8;
  --paper-2: #e8e5d8;
  --ink: #191b17;
  --lime: #d7fb56;
  --coral: #ff8b72;
  --blue: #6082f0;
  --muted: #53564d;
  --line: rgba(25, 27, 23, .28);
  --err: #9b1c10;
  --mono: 'DM Mono', ui-monospace, 'Cascadia Mono', Consolas, Menlo, monospace;
  --display: 'Archivo Black', 'Arial Black', Impact, 'Segoe UI', sans-serif;
  --body: 'DM Sans', system-ui, 'Segoe UI', Roboto, Arial, sans-serif;
  --gutter: clamp(16px, 4vw, 48px);
  --header-h: 68px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}
img, svg { max-width: 100%; }
a { color: inherit; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }
h1, h2, h3 { margin: 0; line-height: 1.05; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
button:disabled, [aria-disabled="true"] { cursor: not-allowed; }
::selection { background: var(--coral); color: var(--ink); }
[hidden] { display: none !important; }

:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; box-shadow: 0 0 0 6px var(--lime); }
.on-dark :focus-visible, .site-footer :focus-visible { outline-color: var(--lime); box-shadow: none; }

.icon { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.skip-link {
  position: absolute; left: 12px; top: -80px; z-index: 100;
  background: var(--ink); color: var(--lime); padding: 10px 16px; font: 500 13px var(--mono); text-decoration: none;
}
.skip-link:focus { top: 8px; }

.container { width: min(1280px, 100%); margin: 0 auto; padding: 0 var(--gutter); }
.eyebrow { font: 500 11px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; margin: 0 0 14px; }
.lead { font-size: clamp(17px, 1.6vw, 21px); line-height: 1.5; max-width: 62ch; color: var(--ink); }
.muted { color: var(--muted); }

/* ---------- top strip + header ---------- */
.top-strip { background: var(--ink); color: var(--lime); font: 500 11px var(--mono); letter-spacing: .16em; text-align: center; padding: 6px var(--gutter); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(242, 240, 232, .97); border-bottom: 1.5px solid var(--ink); }
.header-inner { min-height: var(--header-h); display: flex; align-items: center; gap: 20px; padding: 0 var(--gutter); }
.logo { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; flex: none; }
.logo-name { font-size: 27px; font-weight: 800; letter-spacing: -1.6px; line-height: 1; }
.logo-name > span { font-weight: 400; }
.logo-mark { display: grid; grid-template-columns: repeat(2, 10px); grid-template-rows: repeat(2, 10px); gap: 2px; transform: rotate(-12deg); }
.logo-mark span { background: var(--ink); border-radius: 50%; }
.logo-mark span:nth-child(2) { background: var(--coral); }
.logo-mark span:nth-child(3) { grid-column: span 2; border-radius: 2px; transform: skew(-10deg); }

.desktop-nav { display: none; margin-left: auto; }
.desktop-nav ul { display: flex; gap: 2px; list-style: none; }
.nav-link { display: block; padding: 12px 9px; font: 500 12px var(--mono); letter-spacing: .04em; text-decoration: none; border-bottom: 3px solid transparent; }
.nav-link:hover { border-bottom-color: var(--coral); }
.nav-link.is-active { background: var(--lime); border-bottom-color: var(--ink); }

.header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.desktop-nav + .header-actions { margin-left: 0; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 44px; padding: 0 20px; border: 1.5px solid var(--ink); background: transparent; color: var(--ink); font: 500 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; text-decoration: none; transition: background .2s, color .2s; }
.btn:hover:not(:disabled) { background: var(--lime); }
.btn-ink { background: var(--ink); color: var(--paper); }
.btn-ink:hover:not(:disabled), .btn-ink.is-active { background: var(--lime); color: var(--ink); }
.btn:disabled { opacity: 1; background: var(--paper-2); color: var(--muted); border-style: dashed; }
.btn-account .icon { width: 17px; height: 17px; }

.menu-toggle { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border: 1.5px solid var(--ink); background: transparent; padding: 0; }
.menu-toggle .icon-close { display: none; }
.menu-toggle[aria-expanded="true"] .icon-close { display: block; }
.menu-toggle[aria-expanded="true"] .icon-open { display: none; }
.menu-toggle[aria-expanded="true"] { background: var(--lime); }

.mobile-nav { border-top: 1.5px solid var(--ink); background: var(--lime); padding: 6px var(--gutter) 14px; max-height: calc(100vh - var(--header-h)); overflow-y: auto; }
.js .mobile-nav { display: none; }
.js .mobile-nav.open { display: block; }
.mobile-nav ul { list-style: none; }
.mobile-nav .nav-link { padding: 14px 2px; font-size: 15px; border-bottom: 1px solid var(--ink); }
.mobile-nav .nav-link.is-active { background: var(--ink); color: var(--lime); padding-left: 12px; }

@media (min-width: 1180px) {
  .desktop-nav { display: block; }
  .menu-toggle, .mobile-nav, .js .mobile-nav.open { display: none; }
  .desktop-nav + .header-actions { margin-left: 8px; }
}
@media (max-width: 420px) {
  .btn-account span { display: none; }
  .btn-account { padding: 0 13px; }
}

/* ---------- badges, notices ---------- */
.badge { display: inline-flex; align-items: center; gap: 6px; font: 500 10px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 6px 9px; border: 1.5px solid var(--ink); white-space: nowrap; }
.badge-live { background: var(--lime); }
.badge-live::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--ink); }
.badge-dev { background: transparent; border-style: dashed; }
.panel-head .badge { border-color: currentColor; }
.panel-head .badge-live { background: var(--lime); color: var(--ink); border-color: var(--ink); }
.panel-lime .panel-head .badge-dev { color: var(--ink); }

.dev-banner { display: flex; gap: 14px; align-items: flex-start; border: 1.5px dashed var(--ink); background: #fbe3dc; padding: 16px 18px; margin: 0 0 28px; font-size: 15px; }
.dev-banner-mark { font-size: 22px; line-height: 1.1; color: #a13a22; }
.dev-banner p { margin: 0; }

/* ---------- page hero ---------- */
.page-hero { border-bottom: 1.5px solid var(--ink); padding: clamp(36px, 6vw, 72px) 0 clamp(28px, 4vw, 48px); background:
  linear-gradient(rgba(25, 27, 23, .06) 1px, transparent 1px) 0 0 / 34px 34px,
  linear-gradient(90deg, rgba(25, 27, 23, .06) 1px, transparent 1px) 0 0 / 34px 34px, var(--paper); }
.page-hero-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-bottom: 18px; }
.page-hero h1 { font: clamp(40px, 7vw, 92px)/.98 var(--display); letter-spacing: -.05em; text-transform: uppercase; overflow-wrap: anywhere; }

.section { padding: clamp(32px, 5vw, 64px) 0; border-bottom: 1.5px solid var(--ink); }
.section:last-child { border-bottom: 0; }
.section-title { font: clamp(24px, 3vw, 36px)/1.05 var(--display); letter-spacing: -.03em; text-transform: uppercase; margin-bottom: 22px; }
.section-note { font-size: 15px; color: var(--muted); max-width: 70ch; }
.note-gap { margin-top: 18px; }

.split { display: grid; gap: clamp(20px, 3vw, 40px); }
@media (min-width: 900px) { .split { grid-template-columns: 1.05fr 1fr; align-items: start; } }

/* ---------- panels ---------- */
.panel { border: 1.5px solid var(--ink); background: #fbfaf5; box-shadow: 5px 6px 0 var(--ink); }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 11px 16px; border-bottom: 1.5px solid var(--ink); background: var(--ink); color: var(--lime); font: 500 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.panel-body { padding: clamp(16px, 2.4vw, 28px); }
.panel-lime .panel-head { background: var(--lime); color: var(--ink); }
.panel-blue { background: var(--blue); }
.panel-blue .panel-body { color: var(--ink); }
.panel h2, .panel h3 { font: clamp(26px, 3vw, 38px)/1 var(--display); letter-spacing: -.04em; text-transform: uppercase; margin-bottom: 12px; }
.panel-text { font-size: 16px; max-width: 52ch; }
.panel-foot { margin-top: 16px; font: 500 11px/1.5 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }

/* ---------- forms ---------- */
.field { display: block; margin-bottom: 14px; }
.field-label { display: block; font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 7px; }
.input, .select, .textarea { display: block; width: 100%; min-height: 48px; padding: 11px 14px; background: #fff; border: 1.5px solid var(--ink); border-radius: 0; font-size: 16px; }
.textarea { min-height: 150px; resize: vertical; }
.input:disabled, .select:disabled, .textarea:disabled { background: var(--paper-2); color: var(--muted); border-style: dashed; }
.input-row { display: flex; flex-wrap: wrap; gap: 10px; }
.input-row .input { flex: 1 1 260px; width: auto; }
.btn-lime { background: var(--lime); }
.btn-lime:hover:not(:disabled) { background: var(--coral); }
.btn-block { width: 100%; }
.form-hint { font-size: 14px; color: var(--muted); margin: 10px 0 0; }

/* ---------- tool cards / grids ---------- */
.card-grid { list-style: none; display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr)); }
.tool-card { display: flex; flex-direction: column; gap: 10px; height: 100%; padding: 18px; border: 1.5px solid var(--ink); background: #fbfaf5; text-decoration: none; transition: background .2s, transform .2s; }
.tool-card:hover { background: var(--lime); transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--ink); }
.tool-card-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.tool-card-title { font: 22px/1 var(--display); letter-spacing: -.03em; text-transform: uppercase; }
.tool-card-text { font-size: 14.5px; color: var(--muted); flex: 1; }
.tool-card:hover .tool-card-text { color: var(--ink); }
.tool-card-go { display: inline-flex; align-items: center; gap: 8px; font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; }

/* ---------- steps, lists ---------- */
.steps { list-style: none; counter-reset: step; display: grid; gap: 14px; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 44px 1fr; gap: 14px; align-items: start; padding: 14px 0; border-top: 1.5px solid var(--line); }
.steps li::before { content: counter(step, decimal-leading-zero); display: grid; place-items: center; width: 44px; height: 44px; border: 1.5px solid var(--ink); border-radius: 50%; font: 500 12px var(--mono); background: var(--lime); }
.steps strong { display: block; }
.check-list { list-style: none; display: grid; gap: 10px; }
.check-list li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; }
.check-list .icon { width: 18px; height: 18px; margin-top: 3px; }
.spec { width: 100%; border-collapse: collapse; font-size: 14px; }
.spec th, .spec td { text-align: left; padding: 10px 12px; border: 1.5px solid var(--ink); vertical-align: top; }
.spec th { background: var(--ink); color: var(--lime); font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.spec-caption { text-align: left; padding-bottom: 8px; color: var(--muted); }
.table-scroll { overflow-x: auto; }
.plain-fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
.plain-fieldset legend { padding: 0; margin-bottom: 12px; }

/* ---------- tabs (generic, UI-only) ---------- */
.tabs [role="tablist"] { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.tabs [role="tab"] { min-height: 44px; padding: 0 16px; border: 1.5px solid var(--ink); background: transparent; font: 500 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.tabs [role="tab"][aria-selected="true"] { background: var(--ink); color: var(--lime); }
.tabs [role="tab"]:hover:not([aria-selected="true"]) { background: var(--lime); }
.tabs [role="tabpanel"] { border: 1.5px solid var(--ink); background: #fbfaf5; padding: clamp(16px, 2.4vw, 26px); }
.tabs [role="tabpanel"]:focus-visible { outline-offset: 4px; }
.tabs [role="tabpanel"] h3 { font: 22px/1.1 var(--display); letter-spacing: -.03em; text-transform: uppercase; margin-bottom: 10px; }

/* ---------- homepage ---------- */
.home-hero { border-bottom: 1.5px solid var(--ink); padding: clamp(36px, 6vw, 80px) 0; background:
  linear-gradient(rgba(25, 27, 23, .06) 1px, transparent 1px) 0 0 / 34px 34px,
  linear-gradient(90deg, rgba(25, 27, 23, .06) 1px, transparent 1px) 0 0 / 34px 34px, var(--paper); }
.home-hero h1 { font: clamp(42px, 8vw, 112px)/.96 var(--display); letter-spacing: -.06em; text-transform: uppercase; margin-bottom: 18px; overflow-wrap: anywhere; }
.home-hero h1 em { font: italic 400 1.08em/.96 Georgia, serif; letter-spacing: -.05em; text-transform: none; background: linear-gradient(transparent 55%, var(--lime) 55%); }
.strike { text-decoration: line-through; text-decoration-color: var(--coral); text-decoration-thickness: .1em; }
.home-hero .lead { margin-bottom: 30px; }
.quick-grid { display: grid; gap: 22px; }
@media (min-width: 900px) { .quick-grid { grid-template-columns: 1.25fr 1fr; align-items: start; } }
.big-button { display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; }

/* ---------- legacy LINK result (markup produced by the existing handler) ---------- */
.result { margin-top: 18px; font-size: 16px; }
.result:empty { display: none; }
.link-box { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin: 0; padding: 14px; border: 1.5px solid var(--ink); background: var(--lime); }
.link-info { flex: 1 1 220px; text-align: left; overflow-wrap: anywhere; }
.link-info strong { font-size: 18px; }
.link-actions { display: flex; flex-wrap: wrap; gap: 8px; }
button.copy-btn, button.open-btn, button.qr-btn { min-height: 44px; padding: 0 16px; background: #fff; color: var(--ink); border: 1.5px solid var(--ink); font: 500 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; }
button.copy-btn:hover, button.open-btn:hover, button.qr-btn:hover { background: var(--ink); color: var(--lime); }
.result > div[style*="color:red"] { color: var(--err) !important; background: #fde8e4; border: 1.5px solid var(--err); padding: 12px 14px; }

.popup { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); background: var(--ink); color: var(--lime); padding: 12px 20px; font: 500 13px var(--mono); opacity: 0; pointer-events: none; transition: opacity .3s, transform .3s; z-index: 200; max-width: calc(100vw - 32px); }
.popup.show { opacity: 1; transform: translate(-50%, 0); }
.qr-overlay { display: none; position: fixed; inset: 0; background: rgba(25, 27, 23, .72); justify-content: center; align-items: center; z-index: 150; padding: 16px; }
.qr-popup { position: relative; background: var(--paper); border: 1.5px solid var(--ink); box-shadow: 6px 7px 0 var(--ink); padding: 22px; width: min(340px, 100%); text-align: center; max-height: calc(100vh - 32px); overflow-y: auto; }
.qr-popup h2 { font: 24px/1.1 var(--display); text-transform: uppercase; margin: 0 28px 8px 0; text-align: left; }
.qr-popup img { display: block; width: 100%; height: auto; margin: 14px auto; background: #fff; }
.qr-popup .qr-close { position: absolute; top: 8px; right: 8px; width: 44px; height: 44px; border: 1.5px solid var(--ink); background: transparent; font-size: 26px; line-height: 1; }
.qr-popup .qr-download { display: inline-flex; align-items: center; min-height: 44px; padding: 0 16px; border: 1.5px solid var(--ink); background: var(--lime); text-decoration: none; font: 500 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.qr-third-party { font-size: 13px; color: var(--muted); margin: 6px 0 12px; }

/* ---------- QR tool (legacy generator markup) ---------- */
.qr-tool #inputFields .input, .qr-tool #inputFields .textarea { margin-bottom: 10px; }
#qrResult { margin-top: 26px; padding-top: 22px; border-top: 1.5px solid var(--ink); }
#qrcode { width: min(280px, 100%); margin: 0 0 16px; background: #fff; border: 1.5px solid var(--ink); padding: 12px; }
#qrcode svg { display: block; width: 100%; height: auto; }
.qr-downloads { display: flex; flex-wrap: wrap; gap: 8px; }
.qr-downloads button { min-height: 44px; padding: 0 18px; border: 1.5px solid var(--ink); background: #fff; font: 500 12px var(--mono); letter-spacing: .06em; }
.qr-downloads button:hover { background: var(--ink); color: var(--lime); }
.qr-error { margin-top: 16px; padding: 12px 14px; border: 1.5px solid var(--err); background: #fde8e4; color: var(--err); font-size: 15px; }

/* ---------- disabled "preview" widgets for future modules ---------- */
.dropzone { display: grid; place-items: center; gap: 8px; min-height: 160px; padding: 20px; border: 2px dashed var(--ink); background: var(--paper-2); text-align: center; color: var(--muted); }
.dropzone .icon { width: 30px; height: 30px; }
.devices { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px; }
.device { display: grid; place-items: center; gap: 6px; padding: 16px 8px; border: 1.5px solid var(--ink); background: #fbfaf5; text-align: center; font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.device .icon { width: 34px; height: 34px; }
.device-line { width: clamp(28px, 8vw, 90px); border-top: 2px dashed var(--ink); }
.tile-row { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr)); }
.tile { display: flex; flex-direction: column; gap: 6px; padding: 14px; border: 1.5px dashed var(--ink); background: var(--paper-2); }
.tile strong { font-size: 17px; }
.tile span { font-size: 14px; color: var(--muted); }
.code-slot { display: flex; gap: 8px; }
.code-slot .input { text-align: center; font: 500 22px var(--mono); letter-spacing: .3em; }
.principles { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.principle { padding: 16px; border: 1.5px solid var(--ink); background: #fbfaf5; }
.principle h3 { font: 18px/1.15 var(--display); letter-spacing: -.02em; text-transform: uppercase; margin-bottom: 8px; }
.principle p { margin: 0; font-size: 15px; color: var(--muted); }
.stat-slot { padding: 16px; border: 1.5px dashed var(--ink); background: var(--paper-2); }
.stat-slot b { display: block; font: 500 28px var(--mono); }
.stat-slot span { font-size: 14px; color: var(--muted); }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: var(--paper); padding: clamp(32px, 5vw, 56px) 0 28px; margin-top: 0; }
.footer-grid { display: grid; gap: 28px; }
@media (min-width: 800px) { .footer-grid { grid-template-columns: 1.6fr 1fr 1fr; } }
.site-footer .logo-name { color: var(--lime); }
.site-footer p { color: #d6d4ca; font-size: 15px; max-width: 46ch; }
.footer-credit { font-size: 14px !important; }
.footer-title { font: 500 11px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--lime); margin: 0 0 12px; }
.site-footer ul { list-style: none; display: grid; gap: 4px; }
.site-footer li a { display: inline-block; padding: 6px 0; text-decoration: none; font: 500 13px var(--mono); }
.site-footer a { color: var(--paper); }
.site-footer a:hover { color: var(--lime); text-decoration: underline; }

/* ---------- small screens ---------- */
@media (max-width: 560px) {
  .btn { padding: 0 14px; }
  .devices { grid-template-columns: 1fr; }
  .device-line { width: 0; height: 28px; border-top: 0; border-left: 2px dashed var(--ink); justify-self: center; }
  .panel { box-shadow: 3px 4px 0 var(--ink); }
  .link-actions { width: 100%; }
  .link-actions button { flex: 1 1 auto; }
  .steps li { grid-template-columns: 38px 1fr; gap: 10px; }
  .steps li::before { width: 38px; height: 38px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}