/* Self-hosted fonts; existing dark layout preserved. */
@font-face { font-family: 'Inter'; src: url(/fonts/inter-latin-400-normal.woff2) format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Inter'; src: url(/fonts/inter-latin-500-normal.woff2) format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Inter'; src: url(/fonts/inter-latin-600-normal.woff2) format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url(/fonts/jetbrains-mono-latin-400-normal.woff2) format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url(/fonts/jetbrains-mono-latin-700-normal.woff2) format('woff2'); font-weight: 700; font-display: swap; }
/* Display face: condensed like the DIN Condensed of the layouts. */
@font-face { font-family: 'Barlow Condensed'; src: url(/fonts/barlow-condensed-latin-600-normal.woff2) format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Barlow Condensed'; src: url(/fonts/barlow-condensed-latin-700-normal.woff2) format('woff2'); font-weight: 700; font-display: swap; }

:root { color-scheme: dark; }
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { box-shadow: var(--shadow); margin: 0; background: var(--bg); color: var(--ink2); font: 400 17px/1.6 var(--sans); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: var(--focus-width) solid var(--accent); outline-offset: 3px; }
p { margin: 0 0 1em; }
h1, h2, h3 { color: var(--ink); margin: 0; }
h1, h2 { font-family: var(--disp); font-weight: 700; letter-spacing: 0; line-height: 1.02; }
h1 { font-size: clamp(44px, 6.4vw, 84px); }
h2 { font-size: clamp(34px, 4.2vw, 54px); }
h3 { font: 600 18px/1.35 var(--sans); }
ul, ol { margin: 0; padding: 0; list-style: none; }
/* --wrap is the content width of the layouts (1200 px); the gutter comes on top of it. */
.wrap { max-width: calc(var(--wrap) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }
.small { font-size: 14px; line-height: 1.5; }
.todo { color: var(--warn); }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }

/* Section label in the layouts: "01 · ilman verkkoa". Mono, accent, small. */
.label { display: block; font: 400 14px/1.4 var(--mono); color: var(--accent); margin-bottom: 14px; }
.lead { font-size: clamp(17px, 1.6vw, 19px); color: var(--ink2); max-width: 36em; }

/* T1 coordinate row: reticle 16 + mono 14. Comes after .label so the flex row wins. */
.coord { display: flex; align-items: center; gap: 10px; }

/* Crosshair (offgrid66-brand pen/cta-tahtain-spec.md): patina = a known position, --muted = no fix. */
.reticle { display: inline-block; flex: none; color: var(--accent); vertical-align: middle; }
.reticle-nofix { color: var(--muted); }
/* T5 end mark: a rule across the reading column, reticle 20 px at its right end. */
.end-mark { display: flex; align-items: center; gap: 12px; max-width: 32em; margin: 48px 0 0; }
.end-mark::before { content: ''; flex: 1; height: 1px; background: var(--action-line); }

/* Buttons: equipment plate. Barlow label, optional mono readout, crosshair ticks when targeted. */
.btn { position: relative; display: inline-flex; align-items: center; min-height: 52px; padding: 0 22px;
  border: var(--border-strong) solid transparent; border-radius: var(--btn-radius);
  font: 700 20px/1 var(--disp); letter-spacing: .01em; text-decoration: none; cursor: pointer;
  -webkit-tap-highlight-color: transparent; transition: background-color .12s, border-color .12s; }
.btn-label { padding-top: 1px; } /* Barlow sits 1 px high at line-height 1 */

/* Readout: a compartment at the right end, divided by a hairline. */
.btn:has(.btn-ro) { padding-right: 0; }
.btn-ro { align-self: stretch; display: inline-flex; align-items: center; margin-left: 18px; padding: 0 16px;
  border-left: 1px solid var(--readout-line); font: 400 13px/1 var(--mono); letter-spacing: 0; white-space: nowrap; }

/* Sizes */
.btn-sm { min-height: 44px; padding: 0 16px; font-size: 18px; }
.btn-sm .btn-ro { margin-left: 14px; padding: 0 12px; font-size: 12px; }
.btn-lg { min-height: 60px; padding: 0 28px; font-size: 22px; }
.btn-lg .btn-ro { padding: 0 18px; font-size: 14px; }
.btn-block { display: flex; width: 100%; }
.btn-block:has(.btn-ro) { justify-content: space-between; }

/* Crosshair ticks (T2): ::before = top and bottom, ::after = left and right. 2 x 8 px, 7 px off the outer edge.
   Offsets add the border because absolute children are placed from the padding edge. */
.btn::before, .btn::after { content: ''; position: absolute; pointer-events: none; opacity: 0; transition: opacity .12s;
  --o: calc(-1 * (var(--tick-gap) + var(--tick-len) + var(--border-strong))); }
.btn::before { left: 50%; width: var(--tick-w); margin-left: calc(var(--tick-w) / -2); top: var(--o); bottom: var(--o);
  background: linear-gradient(var(--tick-c) 0 0) top / 100% var(--tick-len) no-repeat,
              linear-gradient(var(--tick-c) 0 0) bottom / 100% var(--tick-len) no-repeat; }
.btn::after { top: 50%; height: var(--tick-w); margin-top: calc(var(--tick-w) / -2); left: var(--o); right: var(--o);
  background: linear-gradient(var(--tick-c) 0 0) left / var(--tick-len) 100% no-repeat,
              linear-gradient(var(--tick-c) 0 0) right / var(--tick-len) 100% no-repeat; }
.btn:focus-visible::before, .btn:focus-visible::after, .btn:active::before, .btn:active::after { opacity: 1; }
@media (hover: hover) { .btn:hover::before, .btn:hover::after { opacity: 1; } }

.btn:focus-visible { outline: var(--focus-width) solid var(--focus-ring); outline-offset: 3px; }

/* Primary */
.btn-primary { --tick-c: var(--accent); background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
@media (hover: hover) { .btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: var(--accent-ink); } }
.btn-primary:active { --tick-c: var(--ink); background: var(--accent-press); border-color: var(--accent-press); }
.btn-primary:hover, .btn-primary:active { color: var(--accent-ink); } /* beats the global a:hover, which sticks on touch screens */

/* Secondary */
.btn-secondary { --tick-c: var(--accent); background: var(--transparent); border-color: var(--action-line); color: var(--ink); }
@media (hover: hover) { .btn-secondary:hover { background: var(--accent-wash); border-color: var(--accent); color: var(--ink); } }
.btn-secondary:active { --tick-c: var(--ink); background: var(--accent-wash-press); border-color: var(--accent); }

/* Disabled: no fill, lead border, muted text, no ticks. The readout says why. */
.btn[aria-disabled="true"], .btn:disabled { background: var(--transparent); border-color: var(--action-line); color: var(--muted); cursor: not-allowed; }
.btn[aria-disabled="true"] .btn-ro, .btn:disabled .btn-ro { border-left-color: var(--action-line); }
.btn[aria-disabled="true"]::before, .btn[aria-disabled="true"]::after, .btn:disabled::before, .btn:disabled::after { display: none; }

/* Text link action (tertiary). No ticks. */
.btn-text { display: inline-flex; align-items: center; min-height: 44px; min-width: 44px; font: 600 16px/1.2 var(--sans); color: var(--ink2);
  text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 5px; }
@media (hover: hover) { .btn-text:hover { color: var(--ink); text-decoration-color: var(--ink); text-decoration-thickness: 2px; } }
.btn-text:active { text-decoration-thickness: 2px; text-decoration-color: var(--accent); }
.btn-text:focus-visible { outline: var(--focus-width) solid var(--focus-ring); outline-offset: 3px; border-radius: var(--btn-radius); }

/* Reserved: 112. Only for an emergency action such as tel:112. Never ticks, never marketing. */
.btn-sos { gap: 12px; background: var(--danger-bg); border: 2px solid var(--danger); color: var(--danger-ink); }
.btn-sos::before, .btn-sos::after { display: none; }
.btn-sos:hover, .btn-sos:active { color: var(--danger-ink); }
.btn-sos-mark { width: 10px; height: 10px; background: var(--danger); flex: none; }
@media (hover: hover) { .btn-sos:hover { background: var(--sos-hover-bg); color: var(--danger-ink); } }

.btn-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; } /* 16 px: hover ticks (15 px) never touch the neighbour */

@media (max-width: 760px) {
  .btn-row { flex-direction: column; align-items: stretch; }
  .btn-row .btn { width: 100%; }
  .btn-row .btn:has(.btn-ro) { justify-content: space-between; }
  .btn-row .btn-text { align-self: flex-start; }
}
/* Readout fit: the label stays on one line. By the room its container has, the readout first drops to its
   short tail ("TestFlight"), then gives way. Thresholds are the measured plate widths: FI lg 358 / 308 px,
   md 326 / 279 px; EN lg 389 / 339 px, md 354 / 307 px. */
.btn-row, .price, .cmp-band { container-type: inline-size; }
@container (max-width: 357px) { .btn-lg .btn-ro-long { display: none; } }
@container (max-width: 325px) { .btn-ro-long { display: none; } }
@container (max-width: 388px) { :lang(en) .btn-lg .btn-ro-long { display: none; } }
@container (max-width: 353px) { :lang(en) .btn-ro-long { display: none; } }
@container (max-width: 307px) { .btn-lg .btn-ro { display: none; } .btn-lg:has(.btn-ro) { padding-right: 28px; } }
@container (max-width: 278px) { .btn .btn-ro { display: none; } .btn:has(.btn-ro) { padding-right: 22px; } }
@container (max-width: 338px) { :lang(en) .btn-lg .btn-ro { display: none; } :lang(en) .btn-lg:has(.btn-ro) { padding-right: 28px; } }
@container (max-width: 306px) { :lang(en) .btn .btn-ro { display: none; } :lang(en) .btn:has(.btn-ro) { padding-right: 22px; } }
@media (prefers-reduced-motion: reduce) { .btn, .btn::before, .btn::after { transition: none; } }
@media (forced-colors: active) { .btn { border-color: ButtonText; } .btn::before, .btn::after { display: none; } }

/* Phone mockup: dark bezel around a 390x844 screenshot. */
.phone { background: var(--bezel); border: var(--rule); border-radius: var(--radius-phone); padding: 4%; }
.phone img { border-radius: var(--radius-screen); width: 100%; }

/* Header */
.site-head { border-bottom: var(--rule); }
.head-row { display: flex; align-items: center; gap: 24px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--brand-wordmark); text-decoration: none;
  font: 700 24px/1 var(--disp); letter-spacing: .02em; min-height: 44px; }
.brand:hover { color: var(--brand-wordmark); }
.site-nav { display: flex; align-items: center; gap: 32px; margin-left: auto; }
.site-nav ul { display: flex; gap: 28px; }
.site-nav a { color: var(--ink2); text-decoration: none; font-size: 15px; display: inline-flex; align-items: center; min-height: 44px; }
.site-nav a:hover { color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--ink); box-shadow: var(--nav-mark); }
.site-nav .lang { font: 400 14px/1 var(--mono); color: var(--muted); }
.menu-btn { display: none; }

@media (max-width: 760px) {
  .head-row { flex-wrap: wrap; }
  .js .menu-btn { display: inline-flex; align-items: center; margin-left: auto; min-height: 44px; padding: 0 16px;
    background: none; color: var(--ink); border: var(--rule); border-radius: var(--r); font: 500 15px/1 var(--sans); }
  .site-nav { flex-basis: 100%; flex-direction: column; align-items: flex-start; gap: 4px; padding: 0 0 16px; margin: 0; }
  .js .site-nav { display: none; }
  .js .site-nav.open { display: flex; }
  .site-nav ul { flex-direction: column; gap: 0; width: 100%; }
  .site-nav li { border-top: var(--rule); }
  .site-nav a { width: 100%; min-height: 48px; font-size: 17px; }
  .site-nav a[aria-current="page"] { box-shadow: var(--nav-mark-mobile); padding-left: 12px; }
}

/* Footer: one column, the links the site actually has. */
.site-foot { border-top: var(--rule); padding: 40px 0 48px; margin-top: 40px; font-size: 15px; }
.foot-who { color: var(--ink); font-weight: 600; }
.foot-links { display: flex; flex-wrap: wrap; gap: 4px 28px; margin-bottom: 16px; }
.foot-links a { display: inline-flex; align-items: center; min-height: 44px; }
.foot-links span { display: inline-block; line-height: 44px; }
.foot-links a { color: var(--ink2); }
.foot-attrib { color: var(--muted); font-size: 13px; }
.foot-host { color: var(--muted); font-size: 13px; margin-top: 4px; }
.foot-host a { color: var(--ink2); display: inline-block; padding: 12px 0; } /* padding grows the tap area without moving the line */
.foot-host a:hover { color: var(--ink); }

@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }