/* IDEA Studios + DelFair – one stylesheet for the whole site.
   Colours and type follow the DelFair app ("Retro kassaapparat"): cream thermal paper,
   forest-green ink, one burnt-orange accent. No external requests: the fonts are in /fonts. */

@font-face { font-family: 'Plus Jakarta Sans'; src: url('/fonts/PlusJakartaSans-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Plus Jakarta Sans'; src: url('/fonts/PlusJakartaSans-600.woff2') format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Plus Jakarta Sans'; src: url('/fonts/PlusJakartaSans-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Plus Jakarta Sans'; src: url('/fonts/PlusJakartaSans-800.woff2') format('woff2'); font-weight: 800; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url('/fonts/JetBrainsMono-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url('/fonts/JetBrainsMono-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }

:root {
  --bg: #F3EDE1;
  --surface: #FDFBF7;
  --surface2: #EFE7D8;
  --text: #10201C;
  --ink: #0F4C43;
  --muted: #4F6F68;
  --line: #E2D9C8;
  --rule: #C9BBA3;
  --border: #10201C;
  --brand: #0F4C43;
  --on-brand: #FDFBF7;
  --accent: #FF6B4A;
  --accent-ink: #B8401F;
  --sand: #E9D8A6;
  /* Receipts are cream in both themes, like real paper */
  --paper: #FDFBF7;
  --paper-ink: #0F4C43;
  --paper-muted: #4F6F68;
  /* A thin ring around the dark studio logo, only needed on the dark page */
  --logo-ring: transparent;
  --sans: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0B1F1B;
    --surface: #12302A;
    --surface2: #183A33;
    --text: #EFE9DC;
    --ink: #EFE9DC;
    --muted: #9DB8B0;
    --line: #1E4A40;
    --rule: #2F5F54;
    --border: #3B6E62;
    --brand: #4FA08D;
    --on-brand: #0B1F1B;
    --accent-ink: #FF8A6E;
    --logo-ring: #3B6E62;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0B1F1B;
  --surface: #12302A;
  --surface2: #183A33;
  --text: #EFE9DC;
  --ink: #EFE9DC;
  --muted: #9DB8B0;
  --line: #1E4A40;
  --rule: #2F5F54;
  --border: #3B6E62;
  --brand: #4FA08D;
  --on-brand: #0B1F1B;
  --accent-ink: #FF8A6E;
  --logo-ring: #3B6E62;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--ink); text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
a:hover { color: var(--accent-ink); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.wrap { width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 760px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }

.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 12px; border: 3px solid var(--border); border-radius: 10px; z-index: 10; }
.skip:focus { left: 16px; }

/* ---------- header / footer ---------- */
.site-head { padding: 18px 0; }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 800; font-size: 18px; letter-spacing: -0.01em; }
.brand img { width: 34px; height: 34px; border-radius: 9px; box-shadow: 0 0 0 2px var(--logo-ring); }
.brand:hover { color: var(--text); }
.nav { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.nav a { font: 700 13px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; text-decoration: none; color: var(--text); padding: 9px 10px; border-radius: 10px; }
.nav a:hover { background: var(--surface2); color: var(--text); }
.nav a[aria-current="page"] { background: var(--surface); box-shadow: inset 0 0 0 2px var(--border); }
.head-right { display: flex; align-items: center; gap: 6px; }

/* Language menu: a <details> drop-down, works without JavaScript */
.lang { position: relative; }
.lang summary {
  list-style: none; cursor: pointer;
  font: 700 13px/1 var(--mono); letter-spacing: 0.06em; color: var(--text);
  padding: 9px 26px 9px 10px; border-radius: 10px; box-shadow: inset 0 0 0 2px var(--line);
  position: relative;
}
.lang summary::-webkit-details-marker { display: none; }
.lang summary::after { content: ''; position: absolute; right: 10px; top: 50%; width: 6px; height: 6px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: translateY(-70%) rotate(45deg); }
.lang[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.lang summary:hover { background: var(--surface2); }
.lang ul {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 5;
  margin: 0; padding: 6px; list-style: none; min-width: 168px;
  background: var(--surface); border: 3px solid var(--border); border-radius: 14px;
}
.lang li a { display: flex; align-items: center; gap: 10px; padding: 10px 10px; border-radius: 8px; text-decoration: none; color: var(--text); font-weight: 600; font-size: 16px; }
.lang li a:hover { background: var(--surface2); color: var(--text); }
.lang li a[aria-current="true"] { background: var(--surface2); }
.lang .code { font: 700 12px/1 var(--mono); letter-spacing: 0.06em; color: var(--muted); width: 22px; }
/* Small phones: the logo stays on one line; the DelFair link is in the footer and on the front page */
.brand { white-space: nowrap; }
@media (max-width: 520px) { .nav a.opt { display: none; } }
@media (max-width: 370px) { .brand { font-size: 16px; gap: 8px; } .brand img { width: 30px; height: 30px; } .nav a { padding: 9px 8px; } }

.site-foot { margin-top: 72px; padding: 28px 0 40px; border-top: 2px dashed var(--rule); color: var(--muted); font-size: 15px; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 10px 24px; align-items: center; justify-content: space-between; }
.site-foot nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.site-foot a { color: var(--muted); }
.foot-langs { flex-basis: 100%; margin: 4px 0 0; font-size: 15px; color: var(--muted); }
.foot-langs [aria-current] { color: var(--text); font-weight: 700; }

/* ---------- type ---------- */
.label { font: 700 12px/1.4 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin: 0 0 10px; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -0.02em; margin: 0; color: var(--text); overflow-wrap: break-word; hyphens: auto; }
h1 { font-size: clamp(30px, 8.5vw, 60px); font-weight: 800; }
h2 { font-size: clamp(26px, 4vw, 34px); font-weight: 800; }
h3 { font-size: 19px; font-weight: 700; letter-spacing: -0.01em; }
.lead { font-size: clamp(18px, 2.4vw, 21px); color: var(--muted); max-width: 34em; margin: 16px 0 0; }
.accent-word { color: var(--accent-ink); }
.mono { font-family: var(--mono); }

/* ---------- pieces ---------- */
.section { margin-top: 72px; }
.section .label + h2 { margin-bottom: 24px; }

.card {
  background: var(--surface);
  border: 3px solid var(--border);
  border-radius: 18px;
  padding: 22px;
}

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font: 700 14px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.06em;
  color: #10201C; background: var(--accent);
  border: 3px solid #10201C; border-radius: 12px;
  padding: 14px 18px; text-decoration: none;
}
.btn:hover { color: #10201C; filter: brightness(1.04); }
.btn.secondary { background: var(--surface); color: var(--text); border-color: var(--border); }

.soon {
  display: inline-flex; align-items: center; gap: 8px;
  font: 700 12px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.08em;
  background: var(--sand); color: #10201C;
  border-radius: 14px; padding: 9px 14px;
  line-height: 1.35;
}
.soon::before { content: ''; flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }

/* Receipt paper: cream, mono, dashed rules and a torn bottom edge */
.receipt {
  background: var(--paper);
  color: var(--paper-ink);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.6;
  padding: 26px 24px 40px;
  --tooth: 16px;
  -webkit-mask: conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) 50% / var(--tooth) 100%;
          mask: conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) 50% / var(--tooth) 100%;
}
.receipt .r-head { text-align: center; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.receipt .r-small { font-size: 13px; margin-bottom: 10px; }
.receipt .r-pay { margin-top: 6px; }
.receipt .r-sub { text-align: center; color: var(--paper-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; }
.receipt hr { border: 0; border-top: 2px dashed #C9BBA3; margin: 16px 0; }
.receipt .r-row { display: flex; gap: 12px; align-items: baseline; }
.receipt .r-row .dots { flex: 1; border-bottom: 2px dotted #C9BBA3; transform: translateY(-5px); }
.receipt .r-row b { font-weight: 700; }
.receipt .r-muted { color: var(--paper-muted); font-size: 13px; }
.receipt .r-total { display: flex; justify-content: space-between; font-weight: 700; font-size: 20px; text-transform: uppercase; }

/* ---------- home (studio) ---------- */
.hero { padding: 40px 0 8px; }
@media (min-width: 720px) { .hero { padding: 72px 0 8px; } }

.app-card { display: grid; gap: 20px; align-items: center; text-decoration: none; color: var(--text); }
@media (min-width: 720px) { .app-card { grid-template-columns: auto 1fr auto; gap: 28px; padding: 28px; } }
.app-card:hover { color: var(--text); border-color: var(--brand); }
.app-card .icon { width: 88px; height: 88px; border-radius: 22px; }
.app-card p { margin: 6px 0 12px; color: var(--muted); }
.app-card .go { font: 700 14px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink); white-space: nowrap; }

/* ---------- DelFair page ---------- */
.product-hero { display: grid; gap: 28px; padding-top: 36px; }
@media (min-width: 900px) { .product-hero { grid-template-columns: 1.1fr 0.9fr; align-items: center; padding-top: 56px; } }
.product-hero .icon { width: 96px; height: 96px; border-radius: 24px; margin-bottom: 22px; }
.product-hero .ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; align-items: center; }

.phones {
  display: grid; grid-auto-flow: column; grid-auto-columns: minmax(200px, 1fr);
  gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 4px 2px 14px; margin: 0 -2px;
  scrollbar-width: thin;
}
.phones figure { margin: 0; scroll-snap-align: start; }
.phones img { width: 100%; height: auto; aspect-ratio: 520 / 1125; border-radius: 26px; border: 3px solid var(--border); background: #F3EDE1; }
.phones figcaption { margin-top: 12px; font-size: 15px; color: var(--muted); }
.phones figcaption b { display: block; color: var(--text); font-weight: 700; }
@media (min-width: 900px) { .phones { grid-auto-flow: row; grid-template-columns: repeat(3, 1fr); overflow: visible; } }

.grid-3 { display: grid; gap: 16px; }
@media (min-width: 760px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
.way { border-radius: 18px; padding: 22px; border: 3px solid #10201C; color: #10201C; }
.way h3 { color: inherit; font: 800 18px/1.2 var(--mono); text-transform: uppercase; letter-spacing: 0.04em; }
.way p { margin: 10px 0 0; font-size: 16px; }
.way.forest { background: #0F4C43; color: #FDFBF7; }
.way.sand { background: var(--sand); }
.way.orange { background: var(--accent); }

.facts { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
@media (min-width: 760px) { .facts { grid-template-columns: repeat(2, 1fr); } }
.facts li { display: flex; gap: 14px; align-items: flex-start; }
.facts .tick { flex: none; width: 28px; height: 28px; border-radius: 8px; background: var(--brand); color: var(--on-brand); display: grid; place-items: center; font: 700 15px/1 var(--mono); margin-top: 1px; }
.facts b { display: block; }
.facts span { color: var(--muted); font-size: 16px; }
.facts.one { grid-template-columns: 1fr; }
.card .note { margin: 18px 0 0; color: var(--muted); }

.pro { display: grid; gap: 24px; }
@media (min-width: 860px) { .pro { grid-template-columns: 0.9fr 1.1fr; align-items: start; } }
.stamp { display: inline-block; font: 800 12px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; background: var(--accent); color: #10201C; border: 2px solid #10201C; border-radius: 6px; padding: 5px 7px; transform: rotate(-3deg); }

.link-row { display: flex; flex-wrap: wrap; gap: 12px; }
.link-row.spaced { margin-top: 28px; }
.pro h2 { margin-top: 14px; }

/* ---------- text pages (privacy, terms, support) ---------- */
.doc-head { padding: 36px 0 8px; }
.doc-head .updated { font: 400 14px/1.4 var(--mono); color: var(--muted); margin-top: 14px; }
.summary { margin-top: 28px; }
.summary h2 { font-size: 20px; margin-bottom: 10px; }
.summary ul { margin: 0; padding-left: 20px; }
.summary li + li { margin-top: 6px; }

.prose { margin-top: 36px; }
.prose h2 { font-size: 24px; margin: 44px 0 12px; padding-top: 22px; border-top: 2px dashed var(--rule); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin: 26px 0 8px; }
.prose p, .prose ul, .prose ol { margin: 0 0 14px; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li + li { margin-top: 6px; }
.prose .table { width: 100%; overflow-x: auto; margin: 0 0 18px; border: 2px solid var(--line); border-radius: 14px; background: var(--surface); }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 560px; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.prose th { font: 700 12px/1.3 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.prose tr:last-child td { border-bottom: 0; }
.todo { background: var(--sand); color: #10201C; border-radius: 6px; padding: 1px 6px; font-family: var(--mono); font-size: 0.9em; }

.lang-switch { font: 700 13px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; }

/* FAQ */
.faq { display: grid; gap: 12px; margin-top: 28px; }
.faq details { background: var(--surface); border: 3px solid var(--border); border-radius: 16px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 52px 18px 20px; font-weight: 700; font-size: 18px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font: 700 22px/1 var(--mono); color: var(--muted); }
.faq details[open] summary::after { content: '−'; }
.faq .answer { padding: 0 20px 18px; }
.faq .answer p, .faq .answer ol, .faq .answer ul { margin: 0 0 12px; }
.faq .answer ol, .faq .answer ul { padding-left: 22px; }
.faq .answer > :last-child { margin-bottom: 0; }

.contact { margin-top: 40px; display: grid; gap: 8px; }
.contact .mail { font: 700 clamp(18px, 4vw, 24px)/1.3 var(--mono); word-break: break-all; }
.contact .label { margin: 20px 0 0; }
.contact .note { margin: 6px 0 0; color: var(--muted); }

@media (prefers-reduced-motion: no-preference) {
  .app-card, .btn, .nav a { transition: border-color .15s, background-color .15s, filter .15s; }
}