/* ============================================================
   Suresh Tamang — AI Security & Assurance
   Design system: a security-console aesthetic. Deliberately
   single-theme (dark) — this reads as a monitoring console,
   not a document, and that identity is the point.
   ============================================================ */

:root {
  /* Ground */
  --ground: #12161c;
  --surface: #1a212b;
  --surface-2: #212a36;
  --border: #2b3542;
  --border-soft: #202834;

  /* Ink */
  --ink: #e9edf2;
  --ink-dim: #aab4c0;
  --muted: #78828f;

  /* Accent — status-light amber (scan/in-progress) and
     verified teal (checked/clear). These double as the site's
     literal semantics: amber = in development, teal = verified. */
  --accent: #d9a441;
  --accent-soft: #d9a44122;
  --accent-ink: #14110a;
  --verify: #4fb3a2;
  --verify-soft: #4fb3a222;
  --alert: #d9704f;

  --radius: 3px;
  --measure: 65ch;
}

* { box-sizing: border-box; }

html { background: var(--ground); }

body {
  margin: 0;
  background: var(--ground);
  background-image:
    linear-gradient(var(--border-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
  color: var(--ink);
  font-family: "IBM Plex Sans", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent-soft); color: var(--ink); }

a { color: inherit; }

h1, h2, h3 {
  font-family: "IBM Plex Sans Condensed", "IBM Plex Sans", sans-serif;
  font-weight: 700;
  text-wrap: balance;
  letter-spacing: 0.01em;
  margin: 0;
}

code, .mono {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

.label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 28px;
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------------- Console header ---------------- */

.console-header {
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--ground) 88%, black);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(6px);
}

.console-header .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  flex-wrap: wrap;
}

.console-header .id {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
}

.console-header .id .name {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--verify);
  box-shadow: 0 0 0 3px var(--verify-soft);
  flex: none;
}

@media (prefers-reduced-motion: no-preference) {
  .status-dot { animation: pulse-dot 2.4s ease-in-out infinite; }
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 3px var(--verify-soft); }
  50% { box-shadow: 0 0 0 6px transparent; }
}

.console-header nav {
  display: flex;
  gap: 4px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
}

.console-header nav a {
  text-decoration: none;
  color: var(--ink-dim);
  padding: 6px 12px;
  border-radius: var(--radius);
  border: 1px solid transparent;
}

.console-header nav a:hover { color: var(--ink); border-color: var(--border); }

.console-header nav a.active {
  color: var(--accent);
  border-color: var(--accent-soft);
  background: var(--accent-soft);
}

/* ---------------- Hero / scan panel ---------------- */

.scan-panel {
  position: relative;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.scan-panel canvas,
.scan-strip canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
}

.scan-panel .wrap {
  position: relative;
  padding: 72px 28px 56px;
}

/* Shorter banner variant of the scan panel — same detect/flag/verify
   motif, sized down for pages that lead with content rather than a
   hero (Writing, Projects, article heads). No text sits on top of it,
   so it never competes with reading. */
.scan-strip {
  position: relative;
  height: 96px;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-soft);
  background: color-mix(in srgb, var(--ground) 70%, transparent);
  padding: 5px 10px;
  border-radius: var(--radius);
  margin-bottom: 22px;
}

.hero-title {
  font-size: clamp(2.1rem, 4.6vw, 3.4rem);
  line-height: 1.08;
  max-width: 16ch;
  color: var(--ink);
}

.hero-title .accent-word { color: var(--accent); }

.hero-lede {
  margin-top: 20px;
  max-width: 58ch;
  font-size: 1.08rem;
  color: var(--ink-dim);
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  text-decoration: none;
  padding: 11px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn:hover { border-color: var(--ink-dim); }

.btn.primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
  font-weight: 600;
}

.btn.primary:hover { background: color-mix(in srgb, var(--accent) 88%, white); }

/* ---------------- Sections ---------------- */

main { padding-bottom: 96px; }

.section {
  padding: 56px 0 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.section-head h2 {
  font-size: 1.5rem;
}

.section p.intro {
  max-width: var(--measure);
  color: var(--ink-dim);
}

/* ---------------- Panels / cards ---------------- */

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
}

.panel + .panel { margin-top: 14px; }

.readout-list {
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.readout-list .row {
  background: var(--surface);
  padding: 16px 20px;
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 14px;
  align-items: start;
}

.readout-list .row .tick {
  color: var(--verify);
  font-family: "IBM Plex Mono", monospace;
  margin-top: 2px;
}

.readout-list .row p { margin: 0; color: var(--ink-dim); }

/* Publication / project entries */

.entry-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.entry {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 26px;
  display: block;
  text-decoration: none;
  color: inherit;
}

.entry:hover { border-color: var(--ink-dim); }

.entry.is-pending { border-style: dashed; }

.entry-meta {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.pill {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--ink-dim);
}

.pill.status-live { color: var(--verify); border-color: var(--verify-soft); background: var(--verify-soft); }
.pill.status-pending { color: var(--accent); border-color: var(--accent-soft); background: var(--accent-soft); }

.entry h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--ink);
}

.entry p.desc { margin: 0; color: var(--ink-dim); max-width: var(--measure); }

.tag-row {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  color: var(--ink-dim);
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: var(--radius);
}

/* ---------------- About / headshot ---------------- */

.about-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 36px;
  align-items: start;
}

@media (max-width: 640px) {
  .about-grid { grid-template-columns: 1fr; }
}

.headshot-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.headshot-frame .bracket {
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--muted);
}
.headshot-frame .bracket.tl { top: 8px; left: 8px; border-right: none; border-bottom: none; }
.headshot-frame .bracket.tr { top: 8px; right: 8px; border-left: none; border-bottom: none; }
.headshot-frame .bracket.bl { bottom: 8px; left: 8px; border-right: none; border-top: none; }
.headshot-frame .bracket.br { bottom: 8px; right: 8px; border-left: none; border-top: none; }

.headshot-frame .placeholder-content {
  text-align: center;
  color: var(--muted);
}

.headshot-frame svg { width: 40px; height: 40px; opacity: 0.55; }

.headshot-frame .placeholder-label {
  margin-top: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.headshot-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
}

.headshot-frame.has-photo {
  border-style: solid;
}

.headshot-frame.has-photo .bracket {
  display: none;
}

.about-body p { max-width: var(--measure); color: var(--ink-dim); }
.about-body p + p { margin-top: 14px; }

/* ---------------- Contact ---------------- */

.contact-grid {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 10px 16px;
  border-radius: var(--radius);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
}

.contact-chip:hover { border-color: var(--accent); color: var(--accent); }

.contact-chip.is-pending {
  border-style: dashed;
  color: var(--muted);
  cursor: default;
}
.contact-chip.is-pending:hover { border-color: var(--border); color: var(--muted); }

/* ---------------- Article (long-form) ---------------- */

.article-head {
  padding: 56px 0 32px;
  border-bottom: 1px solid var(--border);
}

.article-head h1 {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  max-width: 22ch;
}

.article-head .byline {
  margin-top: 18px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  color: var(--ink-dim);
}

.article-head .byline-date {
  margin-top: 4px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  color: var(--muted);
}

.article-body {
  max-width: var(--measure);
  padding-top: 36px;
  font-size: 1.05rem;
}

.article-body p { margin: 0 0 20px; color: var(--ink-dim); }
.article-body h2 {
  font-size: 1.3rem;
  margin: 40px 0 14px;
  color: var(--ink);
}
.article-body strong { color: var(--ink); }
.article-body blockquote {
  margin: 24px 0;
  padding: 4px 0 4px 18px;
  border-left: 2px solid var(--accent);
  color: var(--ink);
  font-style: normal;
}

.article-author {
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 16px;
  align-items: start;
}

.article-author .headshot-frame { aspect-ratio: 1; }
.article-author .headshot-frame svg { width: 22px; height: 22px; }
.article-author .headshot-frame .placeholder-label { display: none; }

.article-author p { color: var(--ink-dim); max-width: var(--measure); margin: 0; }
.article-author .name { color: var(--ink); font-weight: 600; margin-bottom: 4px; }
.article-author .orcid { margin-bottom: 10px; }
.article-author .orcid a {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px dotted var(--border);
}
.article-author .orcid a:hover { color: var(--accent); border-color: var(--accent); }

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

footer.console-footer {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------------- Load-in sequence ----------------
   Pure CSS, no JS/observer dependency: every element is fully
   visible at rest (animation always resolves to its 100% frame),
   so nothing depends on script execution to become readable. */

@media (prefers-reduced-motion: no-preference) {
  .eyebrow { animation: rise 0.5s ease both; }
  .hero-title { animation: rise 0.5s 0.06s ease both; }
  .hero-lede { animation: rise 0.5s 0.12s ease both; }
  .hero-actions { animation: rise 0.5s 0.18s ease both; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}