/* ---------------------------------------------
   Tokens
--------------------------------------------- */
:root {
  --bg:          #10151C;
  --surface:     #171E27;
  --surface-alt: #1B2330;
  --border:      #2A3542;
  --text:        #EAEEF2;
  --text-muted:  #8D99A8;
  --accent:      #3FA7A0;   /* operational teal */
  --accent-dim:  #2C7A75;
  --on-accent:   #0B1116;   /* text color used on top of --accent */
  --warn:        #E2A93B;   /* amber, used sparingly */
  --accent-soft: rgba(63, 167, 160, 0.15);
  --warn-soft:   rgba(226, 169, 59, 0.15);
  --header-bg:   rgba(16, 21, 28, 0.9);

  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body:    "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono:    "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  --radius: 6px;
  --max-width: 1080px;

  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg:          #F7F9FB;
  --surface:     #FFFFFF;
  --surface-alt: #EEF1F4;
  --border:      #DCE2E8;
  --text:        #1B232C;
  --text-muted:  #5B6674;
  --accent:      #2E8B84;
  --accent-dim:  #24726C;
  --on-accent:   #FFFFFF;
  --warn:        #B9791F;
  --accent-soft: rgba(46, 139, 132, 0.12);
  --warn-soft:   rgba(185, 121, 31, 0.12);
  --header-bg:   rgba(247, 249, 251, 0.9);

  color-scheme: light;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  transition: background-color 0.2s ease, color 0.2s ease;
}

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.wrap--narrow { max-width: 720px; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ---------------------------------------------
   Header
--------------------------------------------- */
.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--header-bg);
  backdrop-filter: blur(6px);
  z-index: 10;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.wordmark {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text);
}
.wordmark__cursor { color: var(--accent); }
.site-nav { display: flex; align-items: center; gap: 1.75rem; }
.site-nav a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.15s ease;
}
.site-nav a:hover { color: var(--text); }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--text); }
.theme-toggle__icon {
  width: 16px;
  height: 16px;
  grid-area: 1 / 1;
}
.theme-toggle__icon--sun { display: none; }
.theme-toggle__icon--moon { display: block; }
:root[data-theme="light"] .theme-toggle__icon--sun { display: block; }
:root[data-theme="light"] .theme-toggle__icon--moon { display: none; }

@media (max-width: 560px) {
  .site-nav { gap: 1rem; }
  .site-nav a { font-size: 0.8rem; }
  .wordmark { font-size: 0.8rem; }
}

/* ---------------------------------------------
   Hero / status board
--------------------------------------------- */
.hero { padding: 4.5rem 0 3rem; }
.hero__inner { max-width: 760px; }

.statusboard {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  display: grid;
  gap: 0.5rem;
  margin-bottom: 2rem;
  width: fit-content;
  max-width: 100%;
}
.statusboard__row { display: flex; gap: 1.25rem; }
.statusboard__key {
  color: var(--text-muted);
  width: 5.5rem;
  flex-shrink: 0;
}
.statusboard__val--ok { color: var(--accent); display: flex; align-items: center; }
.dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 0.5rem;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__headline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  max-width: 18ch;
}
.hero__sub {
  color: var(--text-muted);
  max-width: 60ch;
  font-size: 1.05rem;
  margin: 0 0 2rem;
}
.hero__cta { display: flex; gap: 0.9rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: transform 0.12s ease, border-color 0.12s ease;
}
.btn--primary { background: var(--accent); color: var(--on-accent); }
.btn--primary:hover { background: var(--accent-dim); }
.btn--ghost { border-color: var(--border); color: var(--text); }
.btn--ghost:hover { border-color: var(--accent); }

/* ---------------------------------------------
   Sections
--------------------------------------------- */
.section { padding: 3.5rem 0; border-top: 1px solid var(--border); }
.section--alt { background: var(--surface); }
.section--page { padding-top: 3rem; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  text-transform: lowercase;
  margin: 0 0 1rem;
}
.page-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin: 0 0 1.25rem;
}
.page-desc { color: var(--text-muted); max-width: 60ch; margin-bottom: 2rem; }

.section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}
.see-all { font-size: 0.85rem; color: var(--accent); }
.see-all:hover { text-decoration: underline; }

.about__content { max-width: 68ch; color: var(--text); }
.about__content p { margin: 0 0 1rem; }

/* ---------------------------------------------
   Stack grid (skills)
--------------------------------------------- */
.stack-grid {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}
.stack-group__name {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0 0 0.6rem;
  text-transform: lowercase;
}
.stack-group__items { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chip {
  font-size: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  color: var(--text);
}

/* ---------------------------------------------
   Cards (projects)
--------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}
.card {
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  background: var(--bg);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.section--alt .card { background: var(--surface-alt); }
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card__top { margin-bottom: 0.75rem; }
.card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 0.5rem;
}
.card__summary {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0 0 1rem;
}
.card__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}
.tag::before { content: "#"; }

.pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  text-transform: lowercase;
}
.pill--ok { background: var(--accent-soft); color: var(--accent); }
.pill--pending { background: var(--warn-soft); color: var(--warn); }

/* ---------------------------------------------
   Blog / log list
--------------------------------------------- */
.loglist { list-style: none; margin: 0; padding: 0; }
.logline { border-bottom: 1px solid var(--border); }
.logline a {
  display: flex;
  gap: 1.25rem;
  align-items: baseline;
  padding: 0.85rem 0;
  flex-wrap: wrap;
}
.logline:hover a .logline__title { color: var(--accent); }
.logline__time {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-shrink: 0;
  width: 6.5rem;
}
.logline__title { font-size: 1rem; transition: color 0.15s ease; }
.logline__tags {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-left: auto;
}
.logline--empty { color: var(--text-muted); padding: 0.85rem 0; }

/* ---------------------------------------------
   Post / article body
--------------------------------------------- */
.post__meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  color: var(--text-muted);
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.prose { max-width: 68ch; }
.prose h2 { font-family: var(--font-display); margin-top: 2rem; }
.prose p { margin: 0 0 1.1rem; }
.prose code {
  font-family: var(--font-mono);
  background: var(--surface);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85em;
}
.prose pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  overflow-x: auto;
}
.prose pre code { background: none; padding: 0; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose a { color: var(--accent); text-decoration: underline; }
.back-link {
  display: inline-block;
  margin-top: 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.back-link:hover { color: var(--accent); }

/* ---------------------------------------------
   Footer
--------------------------------------------- */
.site-footer { border-top: 1px solid var(--border); padding: 2.5rem 0; }
.footer__inner { display: flex; flex-direction: column; gap: 1.25rem; }
.footer__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0 0 0.4rem;
  text-transform: lowercase;
}
.footer__email {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
}
.footer__links { display: flex; gap: 1.25rem; margin-top: 0.75rem; }
.footer__links a { color: var(--text-muted); font-size: 0.85rem; }
.footer__links a:hover { color: var(--text); }
.footer__meta { color: var(--text-muted); font-size: 0.78rem; margin: 0; }

@media (max-width: 560px) {
  .hero { padding: 3rem 0 2rem; }
  .section { padding: 2.5rem 0; }
}