/* ==========================================================================
   openascii.no — design system (open-base)
   Ultra-minimal: light neutral background, white borderless surfaces, pills,
   near-monochrome. Geist for content, Geist Mono for numbers and micro labels.
   The accent color is reserved for alarm/critical states only.
   ========================================================================== */

@font-face {
  font-family: "Geist";
  src: url("fonts/Geist-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: optional;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Geist";
  src: url("fonts/Geist-var-ext.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: optional;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+1E00-1EFF, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "Geist Mono";
  src: url("fonts/GeistMono-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: optional;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Geist Mono";
  src: url("fonts/GeistMono-var-ext.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: optional;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+1E00-1EFF, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --bg: #f4f4f2;
  --surface: #ffffff;
  --surface-2: #f4f4f2;
  --surface-3: #e9e9e6;
  --text: #171717;
  --text-2: #666666;
  --text-3: #6f6f6f;
  --border: rgba(0, 0, 0, 0.05);
  --border-strong: rgba(0, 0, 0, 0.1);

  --accent: #d92d20;
  --accent-soft: rgba(217, 45, 32, 0.08);

  --ok: #157f3d;

  --inverse-bg: #171717;
  --inverse-text: #fafafa;

  --ring: rgba(0, 0, 0, 0.1);
  --shadow-overlay: 0 4px 12px rgba(0, 0, 0, 0.04), 0 24px 60px rgba(0, 0, 0, 0.1);

  --font-sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --chevron: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236f6f6f' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");

  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #0e0e0e;
  --surface: #191919;
  --surface-2: #0e0e0e;
  --surface-3: #262626;
  --text: #ededed;
  --text-2: #a3a3a3;
  --text-3: #9a9a9a;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.14);

  --accent: #f4645a;
  --accent-soft: rgba(244, 100, 90, 0.12);

  --ok: #6ccb8b;

  --inverse-bg: #fafafa;
  --inverse-text: #171717;

  --ring: rgba(255, 255, 255, 0.16);
  --shadow-overlay: 0 4px 12px rgba(0, 0, 0, 0.4), 0 24px 60px rgba(0, 0, 0, 0.55);

  --chevron: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239a9a9a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");

  color-scheme: dark;
}

/* System dark mode applies unless the user explicitly chose light */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e0e0e;
    --surface: #191919;
    --surface-2: #0e0e0e;
    --surface-3: #262626;
    --text: #ededed;
    --text-2: #a3a3a3;
    --text-3: #9a9a9a;
    --border: rgba(255, 255, 255, 0.07);
    --border-strong: rgba(255, 255, 255, 0.14);

    --accent: #f4645a;
    --accent-soft: rgba(244, 100, 90, 0.12);

    --ok: #6ccb8b;

    --inverse-bg: #fafafa;
    --inverse-text: #171717;

    --ring: rgba(255, 255, 255, 0.16);
    --shadow-overlay: 0 4px 12px rgba(0, 0, 0, 0.4), 0 24px 60px rgba(0, 0, 0, 0.55);

    --chevron: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239a9a9a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");

    color-scheme: dark;
  }
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }

[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Numbers and data: mono with tabular digits so nothing jumps */
.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.icon {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
  border-radius: 6px;
}

::selection { background: var(--surface-3); }

/* UI chrome must not be text-selectable (iOS long-press etc.).
   Real content/data the user may want to copy stays selectable. */
button, .site-header, .site-footer, .menu, .toast {
  -webkit-user-select: none;
  user-select: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header { background: transparent; }

.header-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand-tld { color: var(--text-3); font-weight: 500; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  background: var(--surface);
  transition: background-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

@media (hover: hover) { .icon-btn:hover { background: var(--surface-3); } }
.icon-btn:active { transform: scale(0.94); }

.icon-btn.open { background: var(--inverse-bg); color: var(--inverse-text); }

/* Toggle buttons (on/off states) invert when active */
.toggle-btn.on { background: var(--inverse-bg); color: var(--inverse-text); }
@media (hover: hover) { .toggle-btn.on:hover { opacity: 0.85; background: var(--inverse-bg); } }

.pill-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease,
              transform 0.15s ease, opacity 0.15s ease;
}

.pill-btn:active { transform: scale(0.97); }

.pill-btn.primary { background: var(--inverse-bg); color: var(--inverse-text); }
@media (hover: hover) { .pill-btn.primary:hover { opacity: 0.85; } }

.pill-btn.ghost {
  border: 1px solid var(--border-strong);
  color: var(--text);
  background: var(--surface);
}

@media (hover: hover) { .pill-btn.ghost:hover { background: var(--surface-2); } }
.pill-btn[disabled] { opacity: 0.4; pointer-events: none; }

/* --------------------------------------------------------------------------
   Settings menu
   -------------------------------------------------------------------------- */

.settings-wrap { position: relative; }

.menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 296px;
  max-height: min(560px, calc(100dvh - 90px));
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow-overlay);
  padding: 20px;
  z-index: 60;
  transform-origin: top right;
  animation: menu-in 0.16s cubic-bezier(0.2, 0.9, 0.3, 1);
}

@keyframes menu-in {
  from { opacity: 0; transform: scale(0.96) translateY(-4px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.menu-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-bottom: 10px;
}

/* Options share the row evenly when they fit; locales with long words
   («Pantalla completa», «Бегущая строка») wrap to their own row rather
   than wrapping inside the button. gap applies both ways, so the spacing
   between wrapped rows equals the spacing within a row */
.menu-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.menu-grid .opt-btn { flex: 1 1 auto; white-space: nowrap; }

.menu-select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background-color: var(--surface-2);
  background-image: var(--chevron);
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 15px;
  border: none;
  border-radius: 12px;
  padding: 11px 44px 11px 14px;
  cursor: pointer;
}

.opt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 8px;
  border: none;
  border-radius: 999px;
  background: var(--surface-2);
  font-size: 13.5px;
  font-weight: 500;
  text-align: center;
  color: var(--text-2);
  transition: background-color 0.13s ease, color 0.13s ease, transform 0.13s ease;
}

.opt-btn .icon { width: 14px; height: 14px; }

@media (hover: hover) { .opt-btn:hover { background: var(--surface-3); color: var(--text); } }
.opt-btn:active { transform: scale(0.97); }

.opt-btn.active {
  background: var(--inverse-bg);
  color: var(--inverse-text);
  font-weight: 600;
}

.opt-btn.wide { width: 100%; }
.opt-btn.copied { background: var(--ok); color: #fff; }

.menu-divider {
  height: 1px;
  background: var(--border);
  margin: 18px -20px;
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  font-size: 14px;
  line-height: 1.35;
  cursor: pointer;
  user-select: none;
}

.switch {
  appearance: none;
  -webkit-appearance: none;
  flex-shrink: 0;
  width: 40px;
  height: 23px;
  border-radius: 999px;
  background: var(--surface-3);
  position: relative;
  cursor: pointer;
  transition: background-color 0.18s ease;
  margin: 0;
}

.switch::after {
  content: "";
  position: absolute;
  top: 2.5px;
  left: 2.5px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--surface);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
  transition: transform 0.18s ease;
}

.switch:checked { background: var(--inverse-bg); }
.switch:checked::after { transform: translateX(17px); background: var(--inverse-text); }

.menu-info {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.7;
  color: var(--text-3);
}

.menu-info a { color: var(--text-2); text-decoration: none; }
@media (hover: hover) { .menu-info a:hover { text-decoration: underline; } }

.menu-year { margin-top: 6px; }

/* --------------------------------------------------------------------------
   THE TOOL — product styles go here
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px;
  flex: 1;
}

/* ASCII art needs a strict grid. Geist Mono draws ASCII; box-drawing and
   block characters (ANSI Shadow, Future …) fall through to the system
   mono, which shares the 0.6 em advance */
:root { --font-art: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace; }

/* Composer: sticks to the top so the text stays editable while browsing */
.composer {
  position: sticky;
  top: 0;
  z-index: 20;
  margin: 0 -20px;
  padding: 6px 20px 12px;
  background: var(--bg);
  transition: background-color 0.25s ease;
}

.composer::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 18px;
  background: linear-gradient(var(--bg), transparent);
  pointer-events: none;
}

.composer-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border-radius: 22px;
  padding: 6px 10px 6px 4px;
  box-shadow: 0 0 0 1px var(--border);
  transition: box-shadow 0.15s ease;
}

.composer-box:focus-within { box-shadow: 0 0 0 1.5px var(--text-3); }

.text-input {
  flex: 1;
  min-width: 0;
  display: block;
  border: 0;
  outline: 0;
  resize: none;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 28px;
  font-weight: 550;
  letter-spacing: -0.025em;
  line-height: 1.3;
  padding: 12px 16px;
  max-height: 40vh;
  overflow-y: auto;
  field-sizing: content;
  min-height: calc(1.3em + 24px);
}

.text-input::placeholder { color: var(--text-3); opacity: 0.6; }
.text-input:focus-visible { outline: 0; }

.clear-btn { flex-shrink: 0; background: var(--surface-2); width: 36px; height: 36px; }
.clear-btn .icon { width: 17px; height: 17px; }

.composer-note {
  margin: 10px 8px 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-2);
}

.section-label {
  margin: 30px 6px 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
}

.section-label .num { margin-left: 6px; color: var(--text-3); opacity: 0.7; }

.composer + .section-label { margin-top: 18px; }

.gallery {
  display: grid;
  grid-template-columns: minmax(0, 1fr); /* never wider than the page */
  gap: 12px;
}

.card {
  position: relative;
  background: var(--surface);
  border-radius: 20px;
  padding: 14px 16px 22px 22px;
  cursor: pointer;
  transition: box-shadow 0.15s ease, background-color 0.25s ease, transform 0.12s ease;
  /* skip layout and paint far off screen; «auto» remembers the real size */
  content-visibility: auto;
  contain-intrinsic-block-size: auto 170px; /* height only: a remembered width would outlive a resize */
  min-width: 0;
}

.card:active { transform: scale(0.996); }
/* inset: content-visibility's paint containment clips outer shadows */
.card.selected { box-shadow: inset 0 0 0 1.5px var(--text); }

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 32px;
  margin-bottom: 12px;
}

.card-name {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-tools { display: flex; gap: 6px; flex-shrink: 0; }

.tool-btn {
  height: 32px;
  min-width: 32px;
  padding: 0 9px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  background: var(--surface-2);
  transition: background-color 0.13s ease, color 0.13s ease, opacity 0.13s ease, transform 0.13s ease;
}

.tool-btn .icon { width: 15px; height: 15px; }
.copy-btn { padding: 0 13px 0 11px; }
.tool-btn:active { transform: scale(0.95); }
.copy-btn.copied { background: var(--ok); color: #fff; }

/* With a mouse the tools appear on hover; touch screens always show them */
@media (hover: hover) {
  .card .tool-btn { opacity: 0; }
  .card:hover .tool-btn, .card .tool-btn:focus-visible, .card .tool-btn.copied { opacity: 1; }
  .card:focus-within .tool-btn { opacity: 1; }
  .tool-btn:hover { background: var(--surface-3); color: var(--text); }
  .copy-btn.copied:hover { background: var(--ok); color: #fff; }
  .card .fav-btn[aria-pressed="true"] { opacity: 1; }
}

/* Favourites = a heart, as on orgnummer: outline when off, filled accent
   red when on (and always visible), with a small pop when added */
.fav-btn[aria-pressed="true"] { color: var(--accent); }
.fav-btn[aria-pressed="true"] .icon { fill: var(--accent); }
.fav-btn.pop .icon { animation: heart-pop 0.35s ease; }

@keyframes heart-pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.35); }
  100% { transform: scale(1); }
}

.heart-filled { fill: var(--accent); stroke: var(--accent); }
.fav-label { display: flex; align-items: center; gap: 7px; }
.fav-label .icon { width: 12px; height: 12px; }

/* Fit to width: the art scales so its widest row fills the card (container
   query units), down to a floor; past the floor it scrolls inside the card */
.art { container-type: inline-size; }

.art-pre {
  margin: 0;
  font-family: var(--font-art);
  /* widest row fills the card, tall fonts capped at ~260px, never > 22px */
  font-size: clamp(5px, min(100cqi / (var(--cols, 40) * 0.61), 260px / (var(--rows, 6) * 1.12)), 22px);
  line-height: 1.12;
  white-space: pre;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  color: var(--text);
  font-variant-ligatures: none;
  transition: color 0.2s ease;
}

.art-pre::-webkit-scrollbar { display: none; }

.card.sample .art-pre { color: var(--text-3); }

.art-pre:empty {
  height: calc(var(--rows, 6) * 13px);
  max-height: 220px;
  border-radius: 10px;
  background: var(--surface-2);
  animation: placeholder 1.4s ease-in-out infinite alternate;
}

@keyframes placeholder {
  from { opacity: 0.45; }
  to { opacity: 1; }
}

.card.ready .art-pre { animation: art-in 0.28s ease backwards; }

@keyframes art-in {
  from { opacity: 0.01; }
  to { opacity: 1; }
}

/* --------------------------------------------------------------------------
   Toast
   -------------------------------------------------------------------------- */

.toast {
  position: fixed;
  inset: auto; /* resets popover UA styling (inset: 0) */
  margin: 0;
  border: 0;
  bottom: calc(24px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translate(-50%, 16px);
  background: var(--inverse-bg);
  color: var(--inverse-text);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 22px;
  border-radius: 999px;
  box-shadow: var(--shadow-overlay);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
  z-index: 100;
  max-width: calc(100vw - 40px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toast.show { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  text-align: center;
  padding: 24px 20px calc(24px + env(safe-area-inset-bottom));
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.9;
  letter-spacing: 0.02em;
  color: var(--text-3);
}

.site-footer p { margin: 0; }
.site-footer a { color: var(--text-2); text-decoration: none; }
@media (hover: hover) { .site-footer a:hover { text-decoration: underline; } }

/* --------------------------------------------------------------------------
   Mobile
   -------------------------------------------------------------------------- */

@media (max-width: 600px) {
  .menu { width: min(296px, calc(100vw - 32px)); }
  .container { padding: 0 16px; }
  .composer { margin: 0 -16px; padding: 4px 16px 10px; }
  .text-input { font-size: 22px; padding: 10px 14px; min-height: calc(1.3em + 20px); }
  .card { border-radius: 18px; padding: 12px 12px 18px 16px; }
  .section-label { margin-top: 26px; }
}