/* ═══════════════════════════════════════════════════
   AT&T 3B1 / UNIX PC  ·  Personal Site Stylesheet
   Orange phosphor, reverse-video title bars, 1984
   ═══════════════════════════════════════════════════ */

/* ── Variables ──────────────────────────────────── */
:root {
  /* Orange phosphor — warm amber-orange, like the 3B1 monitor */
  --p:        #e07820;        /* primary phosphor orange           */
  --p-dim:    #7a3e0a;        /* dim: borders, secondary text      */
  --p-bright: #ffb05c;        /* bright: highlights, headings      */
  --p-glow:   rgba(224,120,32,0.38);
  --p-faint:  rgba(224,120,32,0.06);

  /* Backgrounds — near-black with a breath of warmth */
  --bg:       #060300;
  --win-bg:   rgba(6, 3, 0, 0.98);
  --bar-bg:   rgba(4, 2, 0, 0.99);

  /* Shadows */
  --glow-text: 0 0 5px var(--p), 0 0 14px var(--p-glow);
  --glow-box:  0 0 0 1px var(--p-dim), 0 0 18px rgba(224,120,32,0.10);

  /* Typography — VT323 is the star here, body for readability */
  --font-display: 'VT323', 'Courier New', monospace;
  --font-body:    'Share Tech Mono', 'Courier New', monospace;
}

/* ── Reset ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--p);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
}

a { color: var(--p-bright); text-decoration: none; }

/* ── CRT Overlay Effects ────────────────────────── */

/* Scanlines — the 3B1 had a fairly sharp display;
   keep these subtle so they read as "screen" not "noise" */
.scanlines {
  position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent         0px,
    transparent         3px,
    rgba(0, 0, 0, 0.07) 3px,
    rgba(0, 0, 0, 0.07) 4px
  );
}

/* Vignette — slightly asymmetric like a real CRT bezel */
.crt-vignette {
  position: fixed; inset: 0; z-index: 9998; pointer-events: none;
  background: radial-gradient(ellipse 90% 80% at 50% 50%,
    transparent 50%,
    rgba(0, 0, 0, 0.65) 100%
  );
}

/* Very subtle phosphor afterglow / flicker */
@keyframes flicker {
  0%, 94%, 100% { opacity: 1;    }
  95%           { opacity: 0.975; }
  97%           { opacity: 0.99;  }
}
body { animation: flicker 12s infinite; }

/* ── Desktop Shell ──────────────────────────────── */

.desktop {
  position: relative;
  width: 100vw; height: 100vh;
  display: flex; flex-direction: column;
  overflow: hidden;
}

/* Barely-visible dot matrix — evokes a phosphor screen surface */
.desktop::before {
  content: '';
  position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(circle, rgba(224,120,32,0.055) 1px, transparent 1px);
  background-size: 4px 4px;
}

/* ── Header — dense dot pattern with centred clock ── */
/*
 * The 3B1 desktop had a characteristic halftone dot field
 * spanning the full width of the screen, with the system
 * clock displayed as a bright cutout in the centre.
 */

.desktop-header {
  position: relative; z-index: 500;
  height: 26px;
  flex-shrink: 0;
  border-bottom: 2px solid var(--p-dim);

  /* Dense dot matrix — the signature 3B1 desktop pattern */
  background-color: var(--bg);
  background-image: radial-gradient(circle, var(--p-dim) 1px, transparent 1px);
  background-size: 4px 4px;

  display: flex;
  align-items: center;
  justify-content: center;
}

/* Clock — sits centred, punched out of the dot field */
.header-clock {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 3px;
  color: var(--p);
  text-shadow: 0 0 6px var(--p-glow);  /* subtle warmth, not a blast */

  /* Opaque background clears the dots behind the text */
  background: var(--bg);
  padding: 0 14px;
  border-left:  1px solid var(--p-dim);
  border-right: 1px solid var(--p-dim);
  height: 100%;
  display: flex; align-items: center;
}

/* "i'm boring" — accessibility escape hatch, tucked in the right corner */
.boring-link {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  padding: 0 10px;
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--p-dim);
  display: flex; align-items: center;
  border-left: 1px solid var(--p-dim);
  background: var(--bg);           /* clear the dots behind it */
  transition: color 0.06s, background 0.06s;
  white-space: nowrap;
}
.boring-link:hover {
  color: var(--bg);
  background: var(--p-dim);
}

/* ── Desktop Area ───────────────────────────────── */

.desktop-area {
  flex: 1;
  position: relative;
  overflow: hidden;
}

/* ── Desktop Icons ──────────────────────────────── */

.desktop-icons {
  position: absolute;
  top: 14px; left: 14px;
  display: flex; flex-direction: column;
  gap: 6px;
  z-index: 50;
}

.desktop-icon {
  display: flex; flex-direction: column;
  align-items: center; gap: 5px;
  cursor: pointer;
  padding: 10px 8px;
  border: 1px solid transparent;
  width: 88px;
  text-align: center;
  transition: all 0.06s;
  user-select: none;
}
.desktop-icon:hover  { border-color: var(--p-dim); background: var(--p-faint); }
.desktop-icon.active { background: var(--p); border-color: var(--p); }
.desktop-icon.active .icon-art,
.desktop-icon.active .icon-label { color: var(--bg); text-shadow: none; }

.icon-art {
  font-family: var(--font-display);
  font-size: 36px;
  line-height: 1;
  color: var(--p);
}

.icon-label {
  font-size: 12px;
  color: var(--p);
  letter-spacing: 0.5px;
}

/* ── Windows ────────────────────────────────────── */

/*
 * 3B1 window anatomy:
 *
 *  ┌[⤢]──────── TITLE ──────────────────┐
 *  │                                     │   ← thick border throughout
 *  │   content                           │
 *  │                                     │
 *  └[×]──────────────────────────────[◢]┘
 *
 * Focused:   amber fill on title + footer, black text, amber border.
 * Unfocused: dark decorations, amber text, black border + thin outline.
 */

/* ── Unfocused (default) ──────────────────────── */

.window {
  position: absolute;
  min-width: 280px; min-height: 160px;
  max-height: calc(100vh - 20px);
  background: var(--win-bg);
  border: 4px solid var(--p);
  border-radius: 0;
  display: flex; flex-direction: column;
}

.hidden { display: none; }

/* Title bar — dark bg, amber text */
.window-titlebar {
  display: flex; align-items: stretch; gap: 0;
  border-bottom: 3px solid var(--p-dim);
  background: var(--win-bg);
  cursor: move;
  user-select: none;
  flex-shrink: 0;
  transition: background 0.08s, border-color 0.08s;
}

/* Base rule — strip UA button styling */
.win-btn {
  appearance: none;
  -webkit-appearance: none;
  color: var(--p-dim);
}

.win-btn.maximize {
  width: 28px;
  border: none;
  border-right: 3px solid var(--p-dim);
  background: transparent;
  font-family: var(--font-display);
  font-size: 16px;
  cursor: pointer; padding: 0;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: background 0.06s, color 0.06s;
}
.win-btn.maximize:hover { background: var(--p-faint); color: var(--p); }

.window-title {
  flex: 1;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 1px;
  color: var(--p);                  /* amber text when unfocused */
  padding: 2px 10px;
  overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
  line-height: 1;
  display: flex; align-items: center;
  transition: color 0.08s;
}

/* Content pane */
.window-content {
  flex: 1;
  padding: 14px 18px;
  overflow-y: auto; overflow-x: hidden;
}

/* More / scroll indicator — sits between content and footer */
.scroll-more {
  padding: 1px 10px;
  background: var(--win-bg);
  border-top: 1px dashed var(--p-dim);
  color: var(--p-dim);
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 3px;
  text-align: center;
  cursor: pointer;
  flex-shrink: 0;
  user-select: none;
  transition: color 0.08s, background 0.08s, border-color 0.08s;
}
.scroll-more:hover         { color: var(--p); background: var(--p-faint); }
.window.focused .scroll-more         { border-top-color: var(--p-dim); }
.window.focused .scroll-more:hover   { color: var(--p); }

/* Footer bar — dark bg, amber-tinted buttons */
.window-footer {
  display: flex; align-items: stretch; gap: 0;
  border-top: 3px solid var(--p-dim);
  background: var(--win-bg);
  flex-shrink: 0;
  transition: background 0.08s, border-color 0.08s;
}

/* Close button — bottom-left */
.win-btn.close {
  width: 28px; height: 20px;
  border: none;
  border-right: 3px solid var(--p-dim);
  background: transparent;
  color: var(--p-dim);
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1;
  cursor: pointer; padding: 0;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all 0.06s;
}
.win-btn.close:hover { background: var(--p-faint); color: var(--p); border-right-color: var(--p); }

.win-footer-spacer { flex: 1; }

/* Resize handle — bottom-right */
.win-resize {
  width: 28px; height: 20px;
  border: none;
  border-left: 3px solid var(--p-dim);
  background: transparent;
  color: var(--p-dim);
  font-size: 11px;
  cursor: se-resize;
  user-select: none;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all 0.06s;
}
.win-resize:hover { background: var(--p-faint); color: var(--p); border-left-color: var(--p); }

/* ── Focused — amber fill on decorations, black text ── */

.window.focused {
  /* border is already var(--p) — decoration fill is what signals focus */
}

.window.focused .window-titlebar {
  background: var(--p);
  border-bottom-color: var(--p);
}

.window.focused .window-footer {
  background: var(--p);
  border-top-color: var(--p);
}

/* Children all have explicit color values so inheritance won't reach them */
.window.focused .window-title,
.window.focused .win-btn,
.window.focused .win-resize {
  color: #000;
}

/* Internal dividers become dark on amber */
.window.focused .win-btn.maximize { border-right-color: rgba(0,0,0,0.25); }
.window.focused .win-btn.close    { border-right-color: rgba(0,0,0,0.25); }
.window.focused .win-resize       { border-left-color:  rgba(0,0,0,0.25); }

/* Hover: darken slightly */
.window.focused .win-btn:hover,
.window.focused .win-resize:hover {
  background: rgba(0,0,0,0.18);
}

/* ── Scrollbar ──────────────────────────────────── */

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track {
  background: transparent;
  border-left: 2px solid var(--p-dim);
}
::-webkit-scrollbar-thumb {
  background: var(--p-dim);
  border-left: 2px solid var(--p-dim);
}
::-webkit-scrollbar-thumb:hover { background: var(--p); }


/* ── Content Typography ─────────────────────────── */

.window-content h1,
.window-content h2,
.window-content h3 {
  font-family: var(--font-display);
  color: var(--p-bright);
  text-shadow: none;
  letter-spacing: 1px;
  margin: 0 0 10px;
}
.window-content h1 { font-size: 38px; }
.window-content h2 { font-size: 28px; border-bottom: 1px solid var(--p-dim); padding-bottom: 4px; margin-bottom: 14px; }
.window-content h3 { font-size: 22px; }

.window-content p  { margin: 0 0 12px; }
.window-content ul, .window-content ol { margin: 0 0 12px 20px; }
.window-content li { margin-bottom: 4px; }

.window-content a {
  color: var(--p-bright);
  border-bottom: 1px solid var(--p-dim);
  transition: all 0.06s;
}
.window-content a:hover {
  color: var(--bg);
  background: var(--p);
  border-bottom-color: var(--p);
  text-shadow: none;
}

.window-content code {
  background: rgba(224,120,32,0.08);
  border: 1px solid var(--p-dim);
  padding: 1px 5px;
  font-family: var(--font-body);
  font-size: 0.93em;
}
.window-content pre {
  background: rgba(0,0,0,0.6);
  border: 2px solid var(--p-dim);
  border-left: 4px solid var(--p-dim);
  padding: 12px 16px;
  overflow-x: auto;
  margin: 0 0 14px;
}
.window-content pre code { background: none; border: none; padding: 0; }

/* ── Terminal Helpers ───────────────────────────── */

.prompt { padding-left: 0; }
.prompt::before { content: '$ '; color: var(--p-bright); }

.prompt-output { color: var(--p-dim); margin-bottom: 8px; padding-left: 14px; }

@keyframes blink { 0%,49%{opacity:1} 50%,100%{opacity:0} }
.cursor::after { content: '█'; animation: blink 1s step-end infinite; }

/* ASCII/pre art blocks */
.window-content pre.ascii {
  border: none; border-left: none;
  background: none;
  color: var(--p);
  text-shadow: 0 0 8px var(--p-glow);  /* kept faint — ascii art earns a little glow */
  padding: 0;
  line-height: 1.15;
  margin-bottom: 16px;
}

/* ── Blog window in-UI browser ─────────────────── */

/* Tag filter strip */
.blog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 14px;
}

.blog-tag,
.project-tag {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--p-dim);
  background: transparent;
  color: var(--p-dim);
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.5px;
  padding: 4px 12px;
  cursor: pointer;
  transition: all 0.06s;
}
.blog-tag:hover,
.project-tag:hover      { border-color: var(--p); color: var(--p); }
.blog-tag.active,
.project-tag.active     { background: var(--p); border-color: var(--p); color: #000; }
.tag-count              { opacity: 0.65; font-size: 10px; }

/* Back button inside post view */
.blog-back,
.project-back {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--p-dim);
  background: transparent;
  color: var(--p);
  font-family: var(--font-body);
  font-size: 13px;
  padding: 2px 12px;
  cursor: pointer;
  transition: all 0.06s;
  display: inline-block;
  margin-bottom: 4px;
}
.blog-back:hover,
.project-back:hover { background: var(--p); color: #000; border-color: var(--p); }

/* Post metadata line */
.post-meta {
  font-size: 12px;
  color: var(--p-dim);
  margin: 4px 0 0;
}

/* Divider between meta and body */
.post-rule {
  border: none;
  border-top: 1px solid var(--p-dim);
  margin: 12px 0 16px;
}

/* ── Blog Post List ─────────────────────────────── */

.post-list { list-style: none; margin: 0; padding: 0; }
.post-list li {
  display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 1px solid var(--p-dim);
  padding: 7px 0; gap: 16px;
}
.post-list a { border: none; color: var(--p); }
.post-list a:hover { background: none; color: var(--p-bright); text-shadow: var(--glow-text); }
.post-date { color: var(--p-dim); font-size: 12px; white-space: nowrap; flex-shrink: 0; }

/* ── Project Cards ──────────────────────────────── */

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 10px;
}
.project-card {
  border: 2px solid var(--p-dim);
  padding: 10px 12px;
  transition: all 0.1s;
}
.project-card:hover { border-color: var(--p); background: var(--p-faint); }
.project-card h3 { font-size: 17px; margin-bottom: 6px; }
.project-card p  { font-size: 13px; color: var(--p-dim); margin: 0 0 10px; }
.tags { display: flex; flex-wrap: wrap; gap: 4px; }
.tag  { font-size: 11px; border: 1px solid var(--p-dim); padding: 1px 6px; color: var(--p-dim); }

/* ── Single-page window (blog posts, /about, etc) ── */

.page-window {
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: min(760px, 90vw);
  max-height: calc(100vh - 70px);
}

/* ── Image Revealer ─────────────────────────────── */

.img-revealer {
  border: 1px solid var(--p-dim);
  margin: 12px 0;
}

.img-revealer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 8px;
  background: var(--p-faint);
  border-bottom: 1px solid var(--p-dim);
}

.img-revealer-label {
  font-size: 12px;
  color: var(--p-dim);
  font-style: italic;
}

.img-reveal-btn {
  appearance: none;
  -webkit-appearance: none;
  background: none;
  border: 1px solid var(--p-dim);
  color: var(--p);
  font-family: inherit;
  font-size: 11px;
  padding: 1px 8px;
  cursor: pointer;
  letter-spacing: 0.05em;
}
.img-reveal-btn:hover {
  background: var(--p);
  color: #000;
}

/* Image hidden by default; shown when revealed */
.img-revealer img {
  display: none;
  max-width: 100%;
  padding: 8px;
  filter: sepia(1) hue-rotate(-10deg) saturate(3) brightness(0.85);
}
.img-revealer.revealed img {
  display: block;
}

/* Mobile */

@media (pointer: coarse) {
  /* Use dynamic viewport height so the browser address bar doesn't cut off the bottom */
  .desktop { height: 100dvh; }

  /* Windows fill the viewport below the header (26px + 2px border = 28px) */
  .window {
    position: fixed !important;
    top: 28px !important;
    right: 0 !important;
    bottom: 0 !important;
    left: 0 !important;
    width: auto !important;
    height: auto !important;
    max-height: none !important;
    min-width: unset !important;
    transform: none !important;
  }

  /* Title bar is not a drag handle on mobile */
  .window-titlebar { cursor: default; }

  /* Maximize and resize are redundant when windows are already fullscreen */
  .win-btn.maximize,
  .win-resize { display: none; }
}