/* ==========================================================================
   Structural + visual layout — v2 (finalized visual direction)

   Signature: a thin left "rail" guide + bracketed mono kickers, echoed from
   the CV timeline through every section head — a nod to the terminal/
   command-line vernacular of the subject rather than decoration for its
   own sake. Accent is a single amber hue shifted per theme (see
   variables.css); everything else routes through the same tokens.
   ========================================================================== */

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.mono { font-family: var(--font-mono); }

/* ---- Kicker: bracketed, monospace, uppercase — used above every H2 ---- */
.kicker {
  font-family: var(--font-mono);
  font-size: var(--fs-000);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.kicker::before { content: "["; margin-right: 0.5em; }
.kicker::after { content: "]"; margin-left: 0.5em; }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-200);
  display: inline-flex;
  align-items: center;
}
.brand__cursor {
  display: inline-block;
  width: 0.5em;
  height: 1.1em;
  margin-left: 0.15em;
  background: var(--color-accent);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.primary-nav__list {
  display: flex;
  gap: var(--space-6);
  font-size: var(--fs-100);
}

.primary-nav__list a {
  color: var(--color-text-muted);
  position: relative;
  padding-block: var(--space-1);
  transition: color var(--duration-fast) var(--ease-standard);
}
.primary-nav__list a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: -2px; height: 1px;
  background: var(--color-accent);
  transition: right var(--duration-base) var(--ease-standard);
}
.primary-nav__list a:hover,
.primary-nav__list a:focus-visible {
  color: var(--color-text);
}
.primary-nav__list a:hover::after { right: 0; }

.nav-toggle { display: none; }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.icon-link {
  display: inline-flex;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}
.icon-link:hover {
  color: var(--color-text);
  background: var(--color-bg-elevated);
}

.icon {
  width: 1.2rem;
  height: 1.2rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-github {
  fill: currentColor;
  stroke: none;
}

/* ---- Language switcher (dropdown, flags) ---- */
.lang { position: relative; }
.lang__trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--fs-000);
}
.lang__trigger:hover { border-color: var(--color-accent); }

.lang__menu {
  position: absolute;
  right: 0;
  top: calc(100% + 0.5rem);
  width: 13rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  box-shadow: 0 12px 32px -8px rgb(0 0 0 / 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 180ms var(--ease-standard), transform 180ms var(--ease-standard), visibility 180ms;
  z-index: 60;
}
.lang.is-open .lang__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang__option {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--fs-100);
  text-align: left;
}
.lang__option:hover { background: var(--color-bg-inset); }
.lang__option[aria-checked="true"] { color: var(--color-accent); }
.lang__option-name { display: flex; align-items: center; gap: var(--space-2); }
/* One-time "detected your language" toast */
.toast {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-100);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  box-shadow: 0 12px 32px -8px rgb(0 0 0 / 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms var(--ease-standard), transform 300ms var(--ease-standard);
  z-index: 70;
  max-width: 90vw;
}
.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
.toast button {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--fs-000);
  flex-shrink: 0;
}

.theme-toggle {
  display: inline-flex;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}
.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-bg-elevated);
}
.icon-moon { display: block; }
.icon-sun { display: none; }
:root[data-theme="dark"] .icon-moon { display: none; }
:root[data-theme="dark"] .icon-sun { display: block; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-sm);
  font-size: var(--fs-100);
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform var(--duration-fast) var(--ease-standard),
              background-color var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard);
}
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--color-accent); color: var(--color-accent-contrast); }
.btn--primary:hover { background: color-mix(in srgb, var(--color-accent) 85%, black); }

.btn--ghost { border-color: var(--color-border); color: var(--color-text); }
.btn--ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }

.btn--sticky { position: sticky; top: calc(var(--header-height) + var(--space-6)); }

/* ---- Sections (generic rhythm) ---- */
main > section {
  padding-block: var(--space-20);
  border-bottom: 1px solid var(--color-border);
}

.section-head {
  margin-bottom: var(--space-12);
  max-width: 40rem;
}

.section-head h2 { font-size: var(--fs-500); }

.section-head__sub {
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

.section-head__linkedin {
  display: inline-block;
  margin-top: var(--space-3);
  font-size: var(--fs-100);
  font-family: var(--font-mono);
  color: var(--color-accent);
}

.eyebrow {
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-size: var(--fs-000);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}
.eyebrow::before { content: "["; margin-right: 0.5em; }
.eyebrow::after { content: "]"; margin-left: 0.5em; }

/* ---- Hero ---- */
.hero { padding-block: var(--space-20) var(--space-16); }
.hero__inner { max-width: 48rem; }
.hero h1 {
  font-family: var(--font-display);
  font-size: var(--fs-800);
  letter-spacing: -0.01em;
}
.hero h1 .cursor {
  display: inline-block;
  width: 0.5em;
  height: 0.8em;
  background: var(--color-accent);
  vertical-align: -0.1em;
  animation: blink 1.1s steps(1) infinite;
}
.hero__lede {
  margin-top: var(--space-6);
  font-size: var(--fs-300);
  color: var(--color-text-muted);
  max-width: 38rem;
}
.hero__actions {
  margin-top: var(--space-8);
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ---- CV ---- */
.cv__layout {
  display: grid;
  grid-template-columns: 14rem 1fr;
  gap: var(--space-12);
  align-items: start;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  border-left: 1px solid var(--color-border);
  padding-left: var(--space-6);
}

.timeline__item { position: relative; }
.timeline__marker {
  position: absolute;
  left: calc(-1 * var(--space-6) - 4px);
  top: 0.4em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
}
.timeline__role { font-size: var(--fs-300); font-weight: 600; }
.timeline__meta {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  font-size: var(--fs-000);
  margin-top: var(--space-1);
  font-variant-numeric: tabular-nums;
}
.timeline__points {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  color: var(--color-text-muted);
}
.timeline__points li {
  position: relative;
  padding-left: 1.1em;
  font-size: var(--fs-100);
}
.timeline__points li::before { content: "—"; position: absolute; left: 0; color: var(--color-accent); }

.skills { margin-top: var(--space-12); }
.skills__heading {
  font-family: var(--font-mono);
  font-size: var(--fs-000);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.skills__group { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.skill-tag {
  font-family: var(--font-mono);
  font-size: var(--fs-000);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text-muted);
}

/* ---- Project grid ---- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr));
  gap: var(--space-6);
}

.project-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-elevated);
  transition: border-color var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
}
.project-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.project-card__thumb {
  aspect-ratio: 16 / 10;
  background:
    repeating-linear-gradient(135deg, var(--color-accent-soft) 0 2px, transparent 2px 14px),
    var(--color-bg-inset);
  display: flex;
  align-items: flex-end;
  padding: var(--space-4);
}
.project-card__thumb-label {
  font-family: var(--font-mono);
  font-size: var(--fs-000);
  color: var(--color-text-muted);
}

.project-card__body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
}

.project-card__kicker {
  font-family: var(--font-mono);
  font-size: var(--fs-000);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.project-card__title { font-size: var(--fs-400); }

.project-card__desc {
  color: var(--color-text-muted);
  font-size: var(--fs-100);
  flex: 1;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
}
.tag-list li {
  padding: 2px var(--space-2);
  background: var(--color-bg-inset);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

.project-card__link {
  margin-top: var(--space-2);
  font-weight: 600;
  color: var(--color-accent);
  font-size: var(--fs-100);
  align-self: flex-start;
}

/* ---- Lab ---- */
.lab-list { display: flex; flex-direction: column; }
.lab-item {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: var(--space-6);
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}
.lab-item:first-child { border-top: 1px solid var(--color-border); }
.lab-item__status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-000);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  height: fit-content;
}
.lab-item__status::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}
.lab-item h3 { font-size: var(--fs-300); margin-bottom: var(--space-1); }
.lab-item p { color: var(--color-text-muted); font-size: var(--fs-100); }

.lab__github-cta {
  margin-top: var(--space-12);
  padding: var(--space-8);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}

/* ---- Automations (stub) ---- */
.automations__placeholder {
  color: var(--color-text-muted);
  font-style: italic;
}

/* ---- Contact ---- */
.contact h2 { margin-bottom: var(--space-3); }
.contact p { color: var(--color-text-muted); margin-bottom: var(--space-8); }

/* ---- Footer ---- */
.site-footer { padding-block: var(--space-8); }
.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--fs-100);
}
.site-footer__links { display: flex; gap: var(--space-6); }

/* ---- Responsive ---- */
@media (max-width: 860px) {
  .cv__layout { grid-template-columns: 1fr; }
  .btn--sticky { position: static; }
}

@media (max-width: 720px) {
  .primary-nav__list {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: var(--space-6);
    gap: var(--space-4);
    transform: translateY(-110%);
    transition: transform var(--duration-base) var(--ease-standard);
  }
  .primary-nav__list.is-open { transform: translateY(0); }
  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-2);
  }
  .nav-toggle__bar,
  .nav-toggle__bar::before,
  .nav-toggle__bar::after {
    content: "";
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-text);
  }
  .nav-toggle__bar::before { transform: translateY(-6px); }
  .nav-toggle__bar::after { transform: translateY(4px); }

  .lab-item { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .brand__cursor, .hero h1 .cursor { animation: none; opacity: 1; }
}