/*
 * teletype.css — Teletype theme (light + dark)
 * Works with: topics, trees, and org-parse
 *
 * A black & white, monospace variation of the doric theme.
 * Jazz-club smooth: low contrast, generous letter-spacing,
 * ruled-paper lines, soft grey ramps.
 *
 * "Click click click — ding!"
 *
 * No colour. Greys do all the work.
 * Monospace type and typographic rhythm carry the composition.
 *
 * Supports dark mode via:
 *   - prefers-color-scheme (topics, trees, org-parse)
 *   - [data-theme=dark] attribute
 */

/* ==========================================================================
   1. CUSTOM PROPERTIES — teletype-light (default)
   ========================================================================== */

:root {
  /* Accent is simply a warm mid-grey */
  --doric-accent:     #505050;
  --doric-accent-bg:  #f0f0f0;

  /* All "hues" collapse to grey steps */
  --doric-red:        #606060;
  --doric-green:      #505050;
  --doric-yellow:     #686868;
  --doric-blue:       #484848;
  --doric-magenta:    #585858;
  --doric-cyan:       #555555;

  /* Semantic backgrounds — faint grey washes */
  --doric-bg-red:     #f2f2f2;
  --doric-bg-green:   #f2f2f2;
  --doric-bg-yellow:  #efefef;
  --doric-bg-blue:    #f0f0f0;
  --doric-bg-magenta: #f1f1f1;
  --doric-bg-cyan:    #f0f0f0;

  /* Surfaces & text — low contrast: not pure black on white */
  --doric-bg:           #fafafa;
  --doric-bg-elevated:  #fafafa;
  --doric-bg-alt:       #f2f2f2;
  --doric-code-bg:      #f0f0f0;
  --doric-text:         #2a2a2a;
  --doric-text-muted:   #808080;
  --doric-heading:      #1a1a1a;
  --doric-border:       #d0d0d0;
  --doric-border-hover: #a0a0a0;
  --doric-shadow:       rgba(0, 0, 0, 0.04);
  --doric-shadow-accent: rgba(0, 0, 0, 0.06);

  /* Trees status — grey variants */
  --status-positive:    #505050;
  --status-positive-bg: color-mix(in srgb, #505050 8%, transparent);
  --status-neutral:     #606060;
  --status-neutral-bg:  color-mix(in srgb, #606060 8%, transparent);
  --status-caution:     #707070;
  --status-caution-bg:  color-mix(in srgb, #707070 8%, transparent);
  --status-negative:    #484848;
  --status-negative-bg: color-mix(in srgb, #484848 8%, transparent);

  /* Typography — system monospace */
  --doric-font-family: "SF Mono", "Cascadia Mono", Consolas,
                        "Liberation Mono", Menlo, Courier, monospace;
  --doric-font-mono:   "SF Mono", "Cascadia Mono", Consolas,
                        "Liberation Mono", Menlo, Courier, monospace;

  color-scheme: light dark;
}

/* Pico CSS overrides */
[data-theme=light],
:root:not([data-theme=dark]) {
  --pico-primary:             var(--doric-accent);
  --pico-primary-hover:       #333333;
  --pico-primary-focus:       rgba(80, 80, 80, 0.15);
  --pico-primary-inverse:     #fafafa;
  --pico-muted-color:         var(--doric-text-muted);
  --pico-muted-border-color:  var(--doric-border);
}

/* ==========================================================================
   2. DARK MODE — prefers-color-scheme
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --doric-accent:     #b0b0b0;
    --doric-accent-bg:  #1e1e1e;

    --doric-red:        #a8a8a8;
    --doric-green:      #b0b0b0;
    --doric-yellow:     #a0a0a0;
    --doric-blue:       #b8b8b8;
    --doric-magenta:    #aaaaaa;
    --doric-cyan:       #b4b4b4;

    --doric-bg-red:     #1c1c1c;
    --doric-bg-green:   #1c1c1c;
    --doric-bg-yellow:  #1a1a1a;
    --doric-bg-blue:    #1d1d1d;
    --doric-bg-magenta: #1b1b1b;
    --doric-bg-cyan:    #1c1c1c;

    --doric-bg:           #111111;
    --doric-bg-elevated:  #161616;
    --doric-bg-alt:       #1c1c1c;
    --doric-code-bg:      #1a1a1a;
    --doric-text:         #d0d0d0;
    --doric-text-muted:   #787878;
    --doric-heading:      #e0e0e0;
    --doric-border:       #383838;
    --doric-border-hover: #585858;
    --doric-shadow:       rgba(0, 0, 0, 0.3);
    --doric-shadow-accent: rgba(255, 255, 255, 0.04);

    --pico-primary:             var(--doric-accent);
    --pico-primary-hover:       #d0d0d0;
    --pico-primary-focus:       rgba(176, 176, 176, 0.18);
    --pico-primary-inverse:     #111111;
    --pico-muted-color:         var(--doric-text-muted);
    --pico-muted-border-color:  var(--doric-border);
    --pico-accordion-open-summary-color: #c0c0c0;

    --status-positive:    #b0b0b0;
    --status-positive-bg: color-mix(in srgb, #b0b0b0 12%, transparent);
    --status-neutral:     #a0a0a0;
    --status-neutral-bg:  color-mix(in srgb, #a0a0a0 12%, transparent);
    --status-caution:     #909090;
    --status-caution-bg:  color-mix(in srgb, #909090 12%, transparent);
    --status-negative:    #c0c0c0;
    --status-negative-bg: color-mix(in srgb, #c0c0c0 12%, transparent);
  }
}

/* ==========================================================================
   2b. DARK MODE — [data-theme=dark]
   ========================================================================== */

[data-theme=dark] {
  --doric-accent:     #b0b0b0;
  --doric-accent-bg:  #1e1e1e;

  --doric-red:        #a8a8a8;
  --doric-green:      #b0b0b0;
  --doric-yellow:     #a0a0a0;
  --doric-blue:       #b8b8b8;
  --doric-magenta:    #aaaaaa;
  --doric-cyan:       #b4b4b4;

  --doric-bg-red:     #1c1c1c;
  --doric-bg-green:   #1c1c1c;
  --doric-bg-yellow:  #1a1a1a;
  --doric-bg-blue:    #1d1d1d;
  --doric-bg-magenta: #1b1b1b;
  --doric-bg-cyan:    #1c1c1c;

  --doric-bg:           #111111;
  --doric-bg-elevated:  #161616;
  --doric-bg-alt:       #1c1c1c;
  --doric-code-bg:      #1a1a1a;
  --doric-text:         #d0d0d0;
  --doric-text-muted:   #787878;
  --doric-heading:      #e0e0e0;
  --doric-border:       #383838;
  --doric-border-hover: #585858;
  --doric-shadow:       rgba(0, 0, 0, 0.3);
  --doric-shadow-accent: rgba(255, 255, 255, 0.04);

  --pico-primary:             var(--doric-accent);
  --pico-primary-hover:       #d0d0d0;
  --pico-primary-focus:       rgba(176, 176, 176, 0.18);
  --pico-primary-inverse:     #111111;
  --pico-muted-color:         var(--doric-text-muted);
  --pico-muted-border-color:  var(--doric-border);
  --pico-accordion-open-summary-color: #c0c0c0;

  --status-positive:    #b0b0b0;
  --status-positive-bg: color-mix(in srgb, #b0b0b0 12%, transparent);
  --status-neutral:     #a0a0a0;
  --status-neutral-bg:  color-mix(in srgb, #a0a0a0 12%, transparent);
  --status-caution:     #909090;
  --status-caution-bg:  color-mix(in srgb, #909090 12%, transparent);
  --status-negative:    #c0c0c0;
  --status-negative-bg: color-mix(in srgb, #c0c0c0 12%, transparent);
}

/* ==========================================================================
   3. BASE ELEMENTS
   ========================================================================== */

body {
  font-family: var(--doric-font-family);
  color: var(--doric-text);
  background-color: var(--doric-bg);
  line-height: 1.7;
  letter-spacing: 0.01em;
  font-size: 0.92rem;
}

a {
  color: var(--doric-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}
a:hover { color: var(--pico-primary-hover); border-bottom-color: var(--doric-border); text-decoration: none; }
a:focus-visible { outline: 2px solid var(--doric-accent); outline-offset: 2px; }

h1, h2, h3, h4, h5, h6 {
  color: var(--doric-heading);
  font-weight: 500;
  letter-spacing: 0.04em;
  font-size: inherit;
}
h1 { font-size: 1.25rem; }
h2 { font-size: 1.1rem; }
h3 { font-size: 1rem; }

/* Tables */
table { border-collapse: collapse; width: 100%; }
th {
  background-color: var(--doric-bg-alt);
  color: var(--doric-heading);
  font-weight: 500;
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--doric-border);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.85em;
}
thead th {
  background-color: var(--doric-bg-alt) !important;
  color: var(--doric-heading) !important;
  border-bottom: 2px solid var(--doric-border) !important;
}
td {
  border-bottom: 1px solid var(--doric-border);
  padding: 0.625rem 1rem;
  color: var(--doric-text);
  background-color: var(--doric-bg);
}
tr:nth-child(even) td { background-color: var(--doric-bg-elevated); }
tr:hover td { background-color: var(--doric-accent-bg); }

/* Code — nearly invisible distinction, since everything is mono */
code {
  font-family: var(--doric-font-mono);
  font-size: 0.875em;
  padding: 0.15em 0.35em;
  background-color: var(--doric-code-bg);
  border: 1px solid var(--doric-border);
  border-radius: 2px;
  color: var(--doric-text);
}
pre {
  background-color: var(--doric-code-bg);
  border: 1px solid var(--doric-border);
  border-radius: 2px;
  padding: 1rem;
  overflow-x: auto;
}
pre code {
  padding: 0;
  background: none;
  border: none;
  font-size: 0.875rem;
  color: var(--doric-heading);
}

/* Images — subtle rounding and shadow */
img {
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  margin: 1rem;
}

/* Time — subtle, no background */
time {
  color: var(--doric-text-muted);
  background: transparent;
}

/* Blockquotes — thin rule, no colour accent */
blockquote {
  border-left: 2px solid var(--doric-border);
  background-color: transparent;
  color: var(--doric-text-muted);
  padding: 0.75rem 1.5rem;
  margin: 1rem 0;
  border-radius: 0;
  font-style: italic;
}
blockquote p:last-child { margin-bottom: 0; }

/* Description lists */
dd { margin-bottom: .8rem; }

/* Buttons */
button,
[type="submit"],
[type="button"] {
  background-color: var(--doric-accent);
  border-color: var(--doric-accent);
  color: var(--pico-primary-inverse);
  border-radius: 2px;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85em;
  transition: background-color 0.25s ease, border-color 0.25s ease,
              box-shadow 0.25s ease;
}
button:hover, [type="submit"]:hover, [type="button"]:hover {
  background-color: var(--pico-primary-hover);
  border-color: var(--pico-primary-hover);
}
button:focus-visible, [type="submit"]:focus-visible, [type="button"]:focus-visible {
  box-shadow: 0 0 0 3px var(--pico-primary-focus);
}
button.secondary, button.outline {
  background-color: transparent;
  border: 1px solid var(--doric-border);
  color: var(--doric-text);
}
button.secondary:hover, button.outline:hover {
  border-color: var(--doric-accent);
  color: var(--doric-accent);
  background-color: transparent;
}

/* Accessibility */
:focus-visible { outline: 2px solid var(--doric-accent); outline-offset: 2px; }
::selection { background-color: var(--doric-accent); color: var(--pico-primary-inverse); }

/* ==========================================================================
   4. PICO CSS OVERRIDES (topics)
   ========================================================================== */

header.container {
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
  border-bottom: none;
}
header h1 { margin-bottom: 0.75rem; }
header h1 a {
  color: var(--doric-heading);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.25s ease;
}
header h1 a:hover { color: var(--doric-accent); text-decoration: none; }
header p { color: var(--doric-text-muted); font-size: 0.95rem; margin-bottom: 0; }

/* Accent line — thin ruled-paper feel */
header.container::after {
  content: '';
  display: block;
  height: 1px;
  margin-top: 1.5rem;
  background: var(--doric-border);
}

/* Search */
.search-row input[type="search"] {
  border: 1px solid var(--doric-border);
  border-radius: 2px;
  background-color: var(--doric-bg-elevated);
  color: var(--doric-text);
  font-family: var(--doric-font-mono);
  letter-spacing: 0.02em;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.search-row input[type="search"]::placeholder { color: var(--doric-text-muted); }
.search-row input[type="search"]:focus {
  border-color: var(--doric-accent);
  box-shadow: 0 0 0 3px var(--pico-primary-focus);
  outline: none;
}
#clear-search {
  color: var(--doric-text-muted);
  border-color: var(--doric-border);
  background-color: var(--doric-bg-elevated);
  transition: all 0.25s ease;
}
#clear-search:hover { color: var(--doric-accent); border-color: var(--doric-accent); }

/* Cards */
.card {
  border: 1px solid var(--doric-border);
  border-radius: 2px;
  background: var(--doric-bg-elevated);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  border-color: var(--doric-accent);
  box-shadow: 0 2px 8px var(--doric-shadow-accent);
}
.card h2 { color: var(--doric-heading); font-weight: 500; transition: color 0.25s ease; }
.card:hover h2 { color: var(--doric-accent); }
.card p { color: var(--doric-text-muted); }

/* Back link, view toggle */
.back-link { color: var(--doric-accent); font-weight: 400; }
.back-link:hover { color: var(--pico-primary-hover); }
.view-toggle { color: var(--doric-text-muted); font-size: 0.9rem; margin-bottom: 1.25rem; }
.view-toggle a { color: var(--doric-accent); font-weight: 400; }
.view-toggle a:hover { color: var(--pico-primary-hover); }

/* Details/Accordion */
details {
  border: 1px solid var(--doric-border);
  border-radius: 2px;
  background-color: var(--doric-bg-elevated);
  margin-bottom: 0.75rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
details:hover { border-color: var(--doric-border-hover); }
details[open] { border-color: var(--doric-accent); box-shadow: 0 1px 6px var(--doric-shadow-accent); }
details summary {
  color: var(--doric-heading);
  font-weight: 400;
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  letter-spacing: 0.02em;
  transition: color 0.25s ease;
}
details summary:hover { color: var(--doric-accent); }
details[open] summary { color: var(--doric-accent); border-bottom: 1px solid var(--doric-border); }
.permalink { color: var(--doric-text-muted); opacity: 0.4; transition: opacity 0.25s ease, color 0.25s ease; }
.permalink:hover { color: var(--doric-accent) !important; opacity: 1; }
details > div, details > p, details > ul, details > ol { padding: 0.625rem 0.75rem; }
details p, details ul, details ol { color: var(--doric-text); }
details a { color: var(--doric-accent); }
details a:hover { color: var(--pico-primary-hover); }
details pre, details code { background-color: var(--doric-code-bg); }
details table { margin: 0; }

/* Footer */
footer.container {
  border-top: 1px solid var(--doric-border);
  padding-top: 1.5rem;
  margin-top: 3rem;
  color: var(--doric-text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}
footer a { color: var(--doric-accent); }
footer a:hover { color: var(--pico-primary-hover); }

/* ==========================================================================
   5. TREES-SPECIFIC COMPONENTS
   ========================================================================== */

#app > header {
  background: var(--doric-bg-alt);
  border-bottom: 1px solid var(--doric-border);
}
#app > header h1 { color: var(--doric-heading); font-weight: 500; }
#app > header h2 { color: var(--doric-text-muted); }
#app > footer {
  background: var(--doric-bg-alt);
  border-top: 1px solid var(--doric-border);
  color: var(--doric-text-muted);
}

progress::-webkit-progress-bar { background: var(--doric-border); }
progress::-webkit-progress-value { background: var(--doric-accent); }
progress::-moz-progress-bar { background: var(--doric-accent); }

.trees button.pure-button,
.trees button.button {
  border: 1px solid var(--doric-border);
  border-radius: 2px;
  background: var(--doric-bg-elevated);
  color: var(--doric-text);
  font-weight: 400;
  padding: 1rem 1.25rem;
  line-height: 1.5;
  letter-spacing: 0.03em;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.trees button.pure-button:hover,
.trees button.button:hover {
  border-color: var(--doric-accent);
  background: var(--doric-accent-bg);
}
.trees button.pure-button:focus,
.trees button.button:focus { outline: 2px solid var(--doric-accent); outline-offset: 2px; }

.trees button.pure-button.status-positive,
.trees button.button.status-positive { border-color: var(--status-positive); }
.trees button.pure-button.status-positive:hover,
.trees button.button.status-positive:hover { background: var(--status-positive-bg) !important; }

.trees button.pure-button.status-neutral,
.trees button.button.status-neutral { border-color: var(--status-neutral); }
.trees button.pure-button.status-neutral:hover,
.trees button.button.status-neutral:hover { background: var(--status-neutral-bg) !important; }

.trees button.pure-button.status-caution,
.trees button.button.status-caution { border-color: var(--status-caution); }
.trees button.pure-button.status-caution:hover,
.trees button.button.status-caution:hover { background: var(--status-caution-bg) !important; }

.trees button.pure-button.status-negative,
.trees button.button.status-negative { border-color: var(--status-negative); }
.trees button.pure-button.status-negative:hover,
.trees button.button.status-negative:hover { background: var(--status-negative-bg) !important; }

aside.help {
  background: var(--doric-accent-bg);
  border-left: 2px solid var(--doric-border);
  border-radius: 0;
  color: var(--doric-text);
  padding: 1rem 1.5rem;
}

.summary article {
  background: var(--doric-bg-alt);
  border-left: 2px solid var(--doric-border);
  border-radius: 2px;
  color: var(--doric-text);
}

.score-result { border-radius: 2px; }

nav a { font-variant: small-caps; }
nav.actions a:hover { background: var(--doric-accent-bg); border-radius: 2px; }

/* ==========================================================================
   6. org-parse SPECIFIC OVERRIDES
   ========================================================================== */

header .document-title { border-color: var(--doric-border); }
.subtitle { color: var(--doric-text-muted); }
.todo { color: var(--doric-text); font-weight: 500; }
.done { color: var(--doric-text-muted); }
.priority { color: var(--doric-text); }
.tags { color: var(--doric-text-muted); }
.footnotes { border-top-color: var(--doric-border); }
.planning { color: var(--doric-text-muted); }
.warning { background: var(--doric-bg-alt); border-left-color: var(--doric-border); color: var(--doric-text); }
.note { background: var(--doric-bg-alt); border-left-color: var(--doric-border); color: var(--doric-text); }
figure { width: fit-content; margin-block: calc(var(--pico-typography-spacing-vertical, 1rem) + 0.4rem); }
figure > img { display: block; margin-bottom: 0.25rem; }
figure figcaption { color: var(--doric-text-muted); font-style: italic; font-size: 0.875em; padding: 0; }
figure.align-center { margin-left: auto; margin-right: auto; }
figure.align-center > img { margin-left: auto; margin-right: auto; }
figure.align-center > figcaption { text-align: center; }
figure.align-right { margin-left: auto; margin-right: 0; }
figure.align-right > img { margin-left: auto; margin-right: 0; }
figure.align-right > figcaption { text-align: right; }
figure.align-left { margin-left: 0; margin-right: auto; }
figure.align-left > img { margin-left: 0; margin-right: auto; }
figure.align-left > figcaption { text-align: left; }

/* ==========================================================================
   7. SCROLLBARS, PRINT, REDUCED MOTION
   ========================================================================== */

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--doric-bg-alt); }
::-webkit-scrollbar-thumb { background: var(--doric-border); border-radius: 4px; border: 2px solid var(--doric-bg-alt); }
::-webkit-scrollbar-thumb:hover { background: var(--doric-border-hover); }
* { scrollbar-width: thin; scrollbar-color: var(--doric-border) var(--doric-bg-alt); }

@media print {
  :root { --doric-text: #222; --doric-heading: #111; --doric-bg: #fff; --doric-bg-elevated: #fff; }
  a { color: #222; text-decoration: underline; }
  a[href]::after { content: " (" attr(href) ")"; font-size: 0.8em; color: #888; }
  details { border: 1px solid #ccc; }
  details[open] { box-shadow: none; }
  .card:hover { transform: none; box-shadow: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .card:hover { transform: none; }
}