/* ============================================================
   Components — glass system, terminal chrome, cards, forms
   ============================================================ */

/* ---------- Glass panel (base of everything) ---------- */
.glass {
  position: relative;
  background: var(--glass-fill);
  border: 1px solid var(--glass-brd);
  border-radius: var(--radius);
  /* Apple-style edge bevel: bright top specular, faint bottom light,
     then a soft diffuse float shadow. */
  box-shadow:
    inset 0 1px 1px 0 var(--glass-rim),
    inset 0 -1px 1px 0 var(--glass-rim-2),
    inset 0 0 0 1px var(--surface-1),
    0 14px 44px -14px var(--shadow-soft),
    0 4px 14px -8px var(--shadow-soft);
}
@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass {
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    backdrop-filter: blur(30px) saturate(180%);
  }
}
/* Fallback when backdrop-filter is unsupported: opaque-enough fill */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass { background: var(--glass-fill-strong); }
}

/* Specular edge light: a clean white rim, brightest where light enters
   (top-left) and exits (bottom-right) — the lens-bevel of liquid glass. */
.glass::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg,
    rgba(120, 214, 255, 0.85) 0%,
    rgba(255, 255, 255, 0.9) 7%,
    rgba(255, 255, 255, 0.12) 24%,
    rgba(255, 255, 255, 0) 50%,
    rgba(255, 255, 255, 0.12) 76%,
    rgba(255, 255, 255, 0.55) 93%,
    rgba(246, 150, 232, 0.8) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.9;
}

/* Hero panel reads a touch more solid than the other glass surfaces */
.glass--hero { background: rgba(255, 255, 255, 0.46); }

/* Genuine refraction wobble on the hero panel where supported */
@supports (backdrop-filter: blur(1px)) {
  .glass--hero {
    -webkit-backdrop-filter: blur(36px) saturate(190%);
    backdrop-filter: blur(36px) saturate(190%) url(#glass-distortion);
  }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), box-shadow 0.2s, background 0.2s;
}
.btn-primary {
  color: var(--btn-solid-ink);
  background: var(--btn-solid);
  box-shadow: 0 8px 24px -8px rgba(109, 139, 255, 0.8);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px -8px rgba(109, 139, 255, 0.9); }
.btn-ghost,
.btn-outline {
  color: var(--ink);
  background: var(--surface-2);
  border-color: var(--glass-brd);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover,
.btn-outline:hover { background: var(--surface-hover); transform: translateY(-2px); }

/* ---------- Terminal window (engineers-desk chrome — the ONE) ---------- */
.terminal-window {
  background: var(--term-bg);
  border: 1px solid var(--glass-brd);
  border-radius: 14px;
  box-shadow:
    inset 0 1px 0 0 rgba(255, 255, 255, 0.1),
    0 30px 70px -22px rgba(0, 0, 0, 0.8),
    0 0 60px -30px rgba(52, 226, 226, 0.35);
  overflow: hidden;
}
@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .terminal-window {
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    backdrop-filter: blur(20px) saturate(150%);
  }
}
.titlebar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 16px;
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.01));
  border-bottom: 1px solid var(--glass-brd);
}
.lights { display: inline-flex; gap: 7px; }
.l { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.l--r { background: #ff5f57; }
.l--y { background: #febc2e; }
.l--g { background: #28c840; }
.titlebar-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--code-ink-mute);
  letter-spacing: 0.2px;
}
.terminal {
  padding: clamp(16px, 2.5vw, 24px);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.7;
}
.prompt { color: var(--term-green); white-space: nowrap; }
.prompt .sep { color: var(--code-ink-mute); }
.prompt .cwd { color: var(--term-blue); }
.prompt .sigil { color: var(--term-amber); margin: 0 0.5ch 0 0.3ch; }
.cmd-text { color: var(--code-ink); }
.cmdline { margin: 0 0 2px; word-break: break-word; }
.cmdout { margin: 10px 0 16px; color: var(--code-ink-soft); }
.cmdout strong { color: var(--code-ink); font-weight: 500; }
.caret {
  display: inline-block;
  width: 9px;
  height: 1.05em;
  margin-left: 2px;
  vertical-align: text-bottom;
  background: var(--term-amber);
}
.js .caret { animation: blink 1.05s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Skills ---------- */
.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
}
.skill-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  padding: 6px 12px;
  border: 1px solid var(--glass-brd);
  border-radius: 999px;
  background: var(--surface-1);
}

/* ---------- Project cards ---------- */
.card {
  padding: clamp(24px, 3vw, 34px);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s var(--ease), box-shadow 0.3s;
}
.card-index {
  font-family: var(--font-mono);
  color: var(--accent-2);
  font-size: 0.85rem;
  margin: 0 0 14px;
}
.card-title { font-size: 1.35rem; font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 12px; }
.card-body { color: var(--ink-soft); font-size: 0.96rem; margin: 0 0 18px; flex-grow: 1; }
.tags { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 20px; }
.tags span,
.tech-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-mute);
  padding: 4px 10px;
  border: 1px solid var(--glass-brd);
  border-radius: 6px;
}
.card-link {
  color: var(--ink);
  font-weight: 500;
  font-size: 0.92rem;
  transition: color 0.2s;
}
/* The card is the click target: the link stretches over the whole panel, so
   there is still exactly one link per card and it keeps its own text. */
.card { position: relative; }
.card-link::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
}
.card:focus-within { outline: 2px solid var(--accent); outline-offset: 3px; }
.card-link span { display: inline-block; transition: transform 0.25s var(--ease); }
.card-link:hover { color: var(--accent-2); }
.card-link:hover span { transform: translateX(5px); }

/* ---------- Explore cards (experience / guides) ---------- */
.explore-card {
  display: block;
  padding: 30px;
  position: relative;
  transition: transform 0.3s var(--ease);
}
.explore-card h3 { font-size: 1.3rem; font-weight: 600; letter-spacing: -0.02em; margin: 0 0 8px; }
.explore-card p { color: var(--ink-soft); margin: 0 0 18px; font-size: 0.95rem; }
.explore-go {
  position: absolute;
  top: 26px; right: 28px;
  font-size: 1.4rem;
  color: var(--accent-2);
  transition: transform 0.25s var(--ease);
}
.explore-card:hover .explore-go { transform: translate(4px, -4px); }

/* ---------- Contact form ---------- */
.contact-intro { color: var(--ink-soft); max-width: 52ch; margin: 0 0 32px; }
.contact-form {
  display: grid;
  gap: 16px;
  max-width: 480px;
  text-align: left;
}
.form-group { display: grid; gap: 6px; }
.form-group label { font-size: 0.85rem; color: var(--ink-soft); font-weight: 500; }
.form-group input,
.form-group textarea {
  width: 100%;
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--surface-3);
  border: 1px solid var(--glass-brd);
  border-radius: 12px;
  padding: 12px 14px;
  transition: border-color 0.2s, background 0.2s;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--ink-mute); }
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-2);
  background: var(--surface-hover);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-2) 30%, transparent);
}
.form-status { min-height: 1.4em; color: var(--ink-soft); font-size: 0.9rem; }
.form-status.success { color: var(--term-green); }
.form-status.error { color: var(--danger); }

.contact-alt { margin: 24px 0 0; color: var(--ink-mute); font-size: 0.92rem; }
.contact-alt a { color: var(--accent-2); }
.contact-alt a:hover { text-decoration: underline; }

.contact-socials { display: flex; gap: 14px; margin-top: 24px; }
.social-link {
  display: grid;
  place-items: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  color: var(--ink-soft);
  border: 1px solid var(--glass-brd);
  background: var(--surface-2);
  transition: color 0.2s, transform 0.2s, background 0.2s;
}
.social-link:hover { color: var(--ink); transform: translateY(-2px); background: var(--surface-hover); }

/* ============================================================
   Motion vocabulary — everything JS-gated on html.js;
   content is fully visible with zero JS.
   ============================================================ */

/* On-load rise for the hero (fill-mode backwards ON PURPOSE:
   `both` retains transform ownership and kills pointer tilt). */
.js .reveal { animation: rise 0.6s var(--ease) backwards; }
@keyframes rise { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }
.js .reveal--late { animation-delay: 0.18s; }

/* Scroll-choreographed entrances (IntersectionObserver adds .in).
   Directional: default up, or from the left/right. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.js [data-reveal="left"]  { transform: translateX(-48px); }
.js [data-reveal="right"] { transform: translateX(48px); }
.js [data-reveal].in { opacity: 1; transform: none; }

/* Interior pages still use .fade-in — same treatment */
.js .fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.js .fade-in.in,
.js .fade-in.visible { opacity: 1; transform: none; }

/* Pointer tilt (JS sets --rx/--ry on fine pointers only) */
.tilt { transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); }

/* ============================================================
   Long-form reading floor — shared base for guide + case pages.
   Element defaults + the box shared by every callout/panel class.
   ============================================================ */
h1, h2, h3, h4 { line-height: 1.15; letter-spacing: -0.02em; }
main p a, .guide-content a, .case-body a { color: var(--accent-2); }
main p a:hover, .guide-content a:hover, .case-body a:hover { text-decoration: underline; }

pre, code, kbd {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--surface-3);
  border: 1px solid var(--glass-brd);
  border-radius: 8px;
}
code, kbd { padding: 2px 6px; }
pre { padding: 16px; overflow-x: auto; }
pre code { background: none; border: none; padding: 0; }

table { border-collapse: collapse; width: 100%; }
th, td { border: 1px solid var(--glass-brd); padding: 8px 12px; text-align: left; }

.callout,
.guide-toc,
.cheatsheet,
.mental-model,
.col-card,
.scenario {
  background: var(--surface-2);
  border: 1px solid var(--glass-brd);
  border-radius: 14px;
  padding: 18px 20px;
  margin: 18px 0;
}

/* ============================================================
   Guide article vocabulary (was the 3 guide pages' inline <style>)
   Calm long-form reading on the shared glass system.
   ============================================================ */
.timeline-hero { margin-top: clamp(40px, 7vw, 88px); }
.guide-hero-panel {
  width: min(100%, 840px);
  padding: clamp(28px, 4vw, 52px);
  border-radius: var(--radius-lg);
}
.timeline-hero .section-title { font-size: clamp(2rem, 5vw, 3.1rem); margin-bottom: 16px; }
.timeline-hero .contact-intro {
  max-width: 62ch;
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  color: var(--ink-soft);
  margin-bottom: 28px;
}

/* Meta chips */
.guide-meta { display: flex; flex-wrap: wrap; gap: 12px; }
.guide-meta-item {
  display: flex; flex-direction: column; gap: 3px;
  padding: 10px 16px;
  border: 1px solid var(--glass-brd);
  border-radius: 14px;
  background: var(--surface-2);
}
.guide-meta-label {
  font-family: var(--font-mono);
  font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--accent-2);
}
.guide-meta-value { font-size: 0.9rem; color: var(--ink); }

/* Two-column reading layout */
.guide-layout {
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}
.guide-toc { position: sticky; top: 96px; margin: 0; font-size: 0.9rem; }
.guide-toc-label {
  font-family: var(--font-mono);
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-mute); margin-bottom: 12px;
}
.guide-toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; counter-reset: toc; }
.guide-toc li { counter-increment: toc; }
.guide-toc a {
  display: block; padding: 5px 10px; border-radius: 8px;
  color: var(--ink-soft); transition: color 0.2s, background 0.2s;
}
.guide-toc a::before {
  content: counter(toc, decimal-leading-zero) "  ";
  font-family: var(--font-mono); font-size: 0.78em; color: var(--accent-2);
}
.guide-toc a:hover { color: var(--ink); background: var(--surface-2); text-decoration: none; }
.guide-toc code { background: none; border: none; padding: 0; color: inherit; }

/* The wide glass reading panel */
.guide-content { padding: var(--reading-pad); border-radius: var(--radius-lg); }
.guide-content > section { scroll-margin-top: 96px; }
.guide-content > section + section { margin-top: clamp(40px, 6vw, 68px); }
.section-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem; letter-spacing: 0.06em; color: var(--accent-2);
  margin-bottom: 10px;
}
.guide-content h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 600; line-height: 1.2; margin: 0 0 18px; }
.guide-content h3 { font-size: 1.12rem; font-weight: 600; line-height: 1.3; color: var(--ink); margin: 28px 0 10px; }
.guide-content p { color: var(--ink-soft); line-height: 1.7; margin: 0 0 16px; max-width: var(--reading-measure); }
.guide-content ul, .guide-content ol { color: var(--ink-soft); line-height: 1.7; margin: 0 0 18px; padding-left: 22px; max-width: var(--reading-measure); }
.guide-content li { margin: 0 0 8px; }
.guide-content p > strong, .guide-content li > strong { color: var(--ink); }
.guide-content img, .guide-content video {
  display: block; max-width: 100%; height: auto;
  margin: 22px 0; border-radius: 14px; border: 1px solid var(--glass-brd);
}
.guide-content :not(pre) > code { color: var(--accent-2); }

/* Code blocks — plain, deliberately NOT terminal chrome */
.guide-content pre {
  position: relative; margin: 18px 0; padding: 34px 18px 18px;
  line-height: 1.65; background: var(--code-bg); color: var(--code-ink-soft);
}
.guide-content pre[data-label]::before {
  content: attr(data-label);
  position: absolute; top: 0; left: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--code-ink-mute); padding: 6px 12px;
  border-bottom: 1px solid var(--glass-brd);
  border-right: 1px solid var(--glass-brd);
  border-bottom-right-radius: 10px;
  background: var(--surface-1);
}
.tok-cmt { color: var(--code-ink-mute); font-style: italic; }
.tok-cmd { color: var(--term-green); }
.tok-str { color: var(--term-amber); }
.tok-flag { color: #d16bff; }
.tok-hi { color: #ff8a8a; }

/* Callouts — accent left border by type (base box from the floor above) */
.callout { color: var(--ink-soft); padding-left: 20px; border-left: 3px solid var(--accent); }
.callout-tip  { border-left-color: var(--ok); }
.callout-warn { border-left-color: var(--warn); }
.callout-label {
  display: block; font-family: var(--font-mono);
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--ink); margin-bottom: 6px;
}

/* Two-column cards */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 18px 0; }
.col-card { margin: 0; }
.col-card-head { font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.col-card-good { border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
.col-card-bad { border-color: color-mix(in srgb, var(--danger) 40%, transparent); }
.col-card ul { margin: 0; padding-left: 20px; max-width: none; }
.col-card p { margin: 0; max-width: none; }

/* Mental model + workflow grids */
.mental-model-title, .workflow-title {
  font-family: var(--font-mono);
  font-size: 0.8rem; letter-spacing: 0.04em; color: var(--accent-2); margin-bottom: 14px;
}
.mental-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.mental-cell {
  padding: 14px; border: 1px solid var(--glass-brd);
  border-radius: 12px; background: var(--surface-1);
}
.mental-cell-head { font-weight: 600; color: var(--ink); margin-bottom: 6px; font-size: 0.95rem; }
.mental-cell-body { color: var(--ink-soft); font-size: 0.9rem; }
.workflow-steps { display: flex; flex-wrap: wrap; gap: 10px; }
.workflow-step {
  flex: 1 1 130px; padding: 12px; border: 1px solid var(--glass-brd);
  border-radius: 12px; background: var(--surface-1);
}
.workflow-step-cmd { font-family: var(--font-mono); font-size: 0.82rem; color: var(--ok); margin-bottom: 4px; }
.workflow-step-desc { font-size: 0.82rem; color: var(--ink-soft); }

/* Cheat sheet */
.cheatsheet h3 { margin: 18px 0 8px; font-size: 1rem; }
.cheatsheet h3:first-child { margin-top: 0; }
.cheat-row {
  display: grid; grid-template-columns: minmax(140px, 40%) 1fr; gap: 12px;
  padding: 7px 0; border-top: 1px solid var(--glass-brd);
}
.cheat-cmd { font-family: var(--font-mono); font-size: 0.82rem; color: var(--accent-2); }
.cheat-desc { color: var(--ink-soft); font-size: 0.88rem; }

/* Scenarios */
.scenario-num {
  font-family: var(--font-mono);
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent-3);
}
.scenario-q { font-weight: 600; color: var(--ink); margin: 6px 0 8px; }
.scenario-a { color: var(--ink-soft); font-size: 0.92rem; }

/* Tables */
.guide-content table { margin: 18px 0; font-size: 0.92rem; }
.guide-content thead th { background: var(--surface-3); color: var(--ink); font-weight: 600; }
.guide-content td { color: var(--ink-soft); vertical-align: top; }

/* Ornament divider */
.ornament {
  text-align: center; color: var(--ink-mute);
  letter-spacing: 0.8em; font-size: 0.9rem;
  margin: clamp(36px, 5vw, 56px) 0; opacity: 0.6;
}

@media (max-width: 860px) {
  .guide-layout { grid-template-columns: minmax(0, 1fr); }
  .guide-toc { position: static; }
  .mental-grid, .two-col { grid-template-columns: 1fr; }
}

/* ============================================================
   Case-study reading treatment (was the 4 case pages' inline <style>)
   One wide right-shifted glass panel; shared reading measure + pad.
   ============================================================ */
.case-main {
  max-width: var(--maxw);
  margin: clamp(64px, 10vw, 120px) auto 0;
  padding: 0 24px;
}
.case-head { max-width: 640px; margin-bottom: clamp(30px, 5vw, 52px); }
.case-title {
  font-family: var(--font-heading);
  font-size: clamp(2.1rem, 6vw, 3.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 22px;
}
.case-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.case-body {
  max-width: 740px;
  margin-left: auto;
  padding: var(--reading-pad);
}
.case-body h2 {
  position: relative;
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
  padding-left: 18px;
  margin: 2em 0 0.55em;
}
.case-body h2:first-child { margin-top: 0; }
.case-body h2::before {
  content: "";
  position: absolute;
  left: 0; top: 0.18em; bottom: 0.18em;
  width: 3px;
  border-radius: 2px;
  background: var(--accent-2);
}
.case-body p {
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.7;
  max-width: var(--reading-measure);
  margin: 0 0 1.15em;
}
.case-body p:last-child { margin-bottom: 0; }
.case-back { display: inline-flex; margin-top: clamp(30px, 5vw, 48px); }
@media (max-width: 900px) {
  .case-body { margin-left: 0; }
}