/* ==========================================================================
   Tanvir M. Mahim, personal academic site
   Layout follows the AcademicPages convention (sticky profile rail + content
   column); the type, spacing and color system are bespoke.
   Plain CSS on purpose: no Sass build step is needed on GitHub Pages.
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Self-hosted variable fonts
   Inter and Newsreader, both SIL Open Font License 1.1 (licenses alongside the
   .woff2 files in /assets/fonts/). Self-hosted rather than pulled from Google
   Fonts: no third-party request on page load, nothing to break if that CDN is
   blocked, and no visitor IP handed to another origin.
   -------------------------------------------------------------------------- */

@font-face {
  font-family: "Inter Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("../fonts/inter-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Inter Variable";
  font-style: italic;
  font-display: swap;
  font-weight: 100 900;
  src: url("../fonts/inter-latin-wght-italic.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Inter Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("../fonts/inter-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Inter Variable";
  font-style: italic;
  font-display: swap;
  font-weight: 100 900;
  src: url("../fonts/inter-latin-ext-wght-italic.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "Newsreader Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 200 800;
  src: url("../fonts/newsreader-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Newsreader Variable";
  font-style: italic;
  font-display: swap;
  font-weight: 200 800;
  src: url("../fonts/newsreader-latin-wght-italic.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Newsreader Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 200 800;
  src: url("../fonts/newsreader-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Newsreader Variable";
  font-style: italic;
  font-display: swap;
  font-weight: 200 800;
  src: url("../fonts/newsreader-latin-ext-wght-italic.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */

:root {
  --font-sans: "Inter Variable", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Newsreader Variable", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --measure: 68ch;
  --wrap: 1140px;
  --rail: 244px;
  --gap: 3.75rem;
  --radius: 10px;
  --radius-sm: 6px;

  --step-0: 1.0rem;
  --step-1: 1.15rem;
  --step-2: 1.45rem;
  --step-3: 1.85rem;
  --step-4: 2.4rem;

  --ease: cubic-bezier(.4, 0, .2, 1);
}

:root,
[data-theme="light"] {
  --bg: #ffffff;
  --bg-subtle: #f6f8f9;
  --bg-raised: #ffffff;
  --text: #1c2227;
  --text-strong: #0d1216;
  --muted: #59636d;
  --faint: #7b858f;
  --border: #e2e7ea;
  --border-strong: #cbd3d8;
  --accent: #14607a;
  --accent-hover: #0c4256;
  --accent-soft: rgba(20, 96, 122, .09);
  --accent-contrast: #ffffff;
  --shadow: 0 1px 2px rgba(16, 24, 32, .04), 0 8px 24px rgba(16, 24, 32, .05);
  --masthead-bg: rgba(255, 255, 255, .82);
}

[data-theme="dark"] {
  --bg: #0f1418;
  --bg-subtle: #161d23;
  --bg-raised: #171f26;
  --text: #d8e0e6;
  --text-strong: #f0f4f7;
  --muted: #97a3ad;
  --faint: #79858f;
  --border: #242e37;
  --border-strong: #33404b;
  --accent: #6cc4dd;
  --accent-hover: #99dcef;
  --accent-soft: rgba(108, 196, 221, .13);
  --accent-contrast: #08131a;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 28px rgba(0, 0, 0, .32);
  --masthead-bg: rgba(15, 20, 24, .84);
}

/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  /* Deliberately NOT scroll-behavior: smooth. On a page this tall Chrome starts
     an animated jump to a #fragment on load, then abandons it while fonts swap,
     leaving the visitor at the top. Instant jumps are reliable, and they work
     even with JavaScript turned off. */
  scroll-padding-top: 5.5rem;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
  transition: background-color .25s var(--ease), color .25s var(--ease);
}

img { max-width: 100%; height: auto; }

a {
  color: var(--accent);
  text-decoration: none;
  text-underline-offset: 2px;
  transition: color .15s var(--ease);
}
a:hover { color: var(--accent-hover); text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: .7rem 1.1rem;
  background: var(--accent);
  color: var(--accent-contrast);
  border-radius: 0 0 var(--radius-sm) 0;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* --------------------------------------------------------------------------
   3. Typography
   -------------------------------------------------------------------------- */

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--text-strong);
  font-weight: 500;
  letter-spacing: -.011em;
  line-height: 1.24;
  margin: 0 0 .55em;
  text-wrap: balance;
}

h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); margin-top: 2.6rem; }
h3 { font-size: var(--step-2); margin-top: 2rem; }
h4 { font-size: var(--step-1); margin-top: 1.6rem; font-weight: 600; }

p, ul, ol { margin: 0 0 1.15rem; }
p { max-width: var(--measure); }

strong { color: var(--text-strong); font-weight: 600; }

ul, ol { padding-left: 1.35rem; max-width: var(--measure); }
li { margin-bottom: .38rem; }
li::marker { color: var(--faint); }

blockquote {
  margin: 1.6rem 0;
  padding: .2rem 0 .2rem 1.25rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  font-style: italic;
}

code {
  font-family: var(--font-mono);
  font-size: .875em;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .1em .35em;
}

sub, sup {
  font-size: .72em;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}
sup { top: -.48em; }
sub { bottom: -.22em; }

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2.6rem 0;
}

/* --------------------------------------------------------------------------
   4. Masthead & navigation
   -------------------------------------------------------------------------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--masthead-bg);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.masthead-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 60px;
}

.masthead-brand {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-strong);
  letter-spacing: -.01em;
  white-space: nowrap;
}
.masthead-brand:hover { color: var(--accent); text-decoration: none; }

.site-nav { margin-left: auto; }

.site-nav ul {
  display: flex;
  align-items: center;
  gap: .35rem;
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: none;
}
.site-nav li { margin: 0; }

.site-nav a {
  display: block;
  padding: .42rem .78rem;
  border-radius: var(--radius-sm);
  font-size: .93rem;
  font-weight: 500;
  color: var(--muted);
}
.site-nav a:hover { background: var(--bg-subtle); color: var(--text-strong); text-decoration: none; }
.site-nav a.is-current { color: var(--accent); background: var(--accent-soft); }

.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color .15s var(--ease), border-color .15s var(--ease), background-color .15s var(--ease);
}
.theme-toggle:hover { color: var(--accent); border-color: var(--border-strong); background: var(--bg-subtle); }
.theme-toggle svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

[data-theme="light"] .icon-moon { display: none; }
[data-theme="dark"]  .icon-sun  { display: none; }

.nav-toggle { display: none; }

/* --------------------------------------------------------------------------
   5. Page layout
   -------------------------------------------------------------------------- */

.layout {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  gap: var(--gap);
  align-items: start;
  padding: 3.25rem 0 4.5rem;
}

.content { min-width: 0; }
.content > :first-child { margin-top: 0; }

.page-head { margin-bottom: 2rem; }
.page-title { margin-bottom: .3rem; }
.page-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: var(--step-1);
  max-width: var(--measure);
}

/* --------------------------------------------------------------------------
   6. Sidebar
   -------------------------------------------------------------------------- */

.sidebar { position: sticky; top: 5.25rem; }

.sidebar-inner { text-align: left; }

.avatar {
  width: 148px;
  height: 148px;
  object-fit: cover;
  object-position: center 22%;
  border-radius: 50%;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: block;
  margin-bottom: 1.05rem;
}

.sidebar-name {
  font-size: 1.22rem;
  font-weight: 600;
  margin: 0 0 .18rem;
  line-height: 1.3;
}

.sidebar-role {
  margin: 0;
  font-size: .885rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.45;
}

.sidebar-affil {
  margin: .12rem 0 .55rem;
  font-size: .855rem;
  color: var(--muted);
  line-height: 1.45;
}

.sidebar-meta {
  display: flex;
  align-items: center;
  gap: .42rem;
  margin: 0 0 1.05rem;
  font-size: .83rem;
  color: var(--faint);
}

.sidebar-links {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
  padding-top: .85rem;
}

.sidebar-links li {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin-bottom: .42rem;
  font-size: .855rem;
  min-width: 0;
}

.sidebar-links a {
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar-links a:hover { color: var(--accent); }

.ico {
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  color: var(--faint);
}

.btn-cv {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .58rem .9rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  color: var(--text-strong);
  font-size: .855rem;
  font-weight: 600;
  transition: all .15s var(--ease);
}
.btn-cv:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
  text-decoration: none;
}
.btn-cv:hover .ico { color: var(--accent-contrast); }


/* --------------------------------------------------------------------------
   7. Home: intro, interests, news
   -------------------------------------------------------------------------- */

.intro-name {
  font-size: clamp(2.1rem, 1.5rem + 2.1vw, 2.85rem);
  margin-bottom: .25rem;
}

.intro-tagline {
  font-size: var(--step-1);
  color: var(--muted);
  margin: 0 0 1.9rem;
  max-width: var(--measure);
}
.intro-tagline strong { color: var(--text-strong); font-weight: 600; }

.interests {
  list-style: none;
  padding: 0;
  margin: 1.1rem 0 0;
  max-width: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(228px, 1fr));
  gap: .6rem;
}
.interests li {
  margin: 0;
  padding: .62rem .85rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  font-size: .89rem;
  font-weight: 500;
  color: var(--text-strong);
  line-height: 1.4;
}

.news {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  max-width: calc(var(--measure) + 8.4rem);
  border-top: 1px solid var(--border);
}
.news > li {
  display: grid;
  grid-template-columns: 7.4rem minmax(0, 1fr);
  gap: 1rem;
  margin: 0;
  padding: .78rem 0;
  border-bottom: 1px solid var(--border);
  font-size: .935rem;
}
.news .news-date {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--faint);
  padding-top: .18rem;
  white-space: nowrap;
}
.news .news-body { color: var(--text); }

/* --------------------------------------------------------------------------
   8. Research highlights
   -------------------------------------------------------------------------- */

.project {
  padding: 1.4rem 0 .35rem;
  border-top: 1px solid var(--border);
}
.project:first-of-type { border-top: 0; padding-top: .3rem; }

.project h3 { margin-top: 0; margin-bottom: .3rem; }

.project-meta {
  margin: 0 0 .9rem;
  font-size: .875rem;
  color: var(--muted);
  max-width: none;
}
.project-meta .sep { color: var(--border-strong); margin: 0 .5rem; }

.workitems {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: var(--measure);
}
.workitems > li {
  position: relative;
  padding-left: 1.15rem;
  margin-bottom: .72rem;
  font-size: .945rem;
}
.workitems > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.tag {
  display: inline-block;
  margin-left: .35rem;
  padding: .07rem .48rem;
  border-radius: 999px;
  font-size: .705rem;
  font-weight: 600;
  letter-spacing: .035em;
  text-transform: uppercase;
  vertical-align: .1em;
  white-space: nowrap;
  border: 1px solid var(--border-strong);
  background: var(--bg-subtle);
  color: var(--muted);
}
.tag-review { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.tag-published { border-color: var(--border-strong); }

.callout {
  margin: 1.6rem 0;
  padding: .95rem 1.15rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  font-size: .9rem;
  color: var(--muted);
}
.callout p { margin: 0; max-width: none; }

.section-lead {
  margin: .35rem 0 1.9rem;
  font-size: 1.02rem;
  color: var(--muted);
  max-width: var(--measure);
}

.project-figure {
  margin: 1.05rem 0 1.2rem;
  padding: .8rem .8rem .65rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-subtle);
}
.project-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
  /* the figures are line art on white; keep that ground in dark mode so they
     stay legible instead of inverting into mud */
  background: #fff;
}
.project-figure figcaption {
  margin-top: .62rem;
  font-size: .8rem;
  line-height: 1.55;
  color: var(--faint);
}
.project-figure figcaption b { color: var(--muted); font-weight: 600; }

.chip-code, .chip-data, .chip-paper { padding-left: .52rem; }
.chip-code::before, .chip-data::before, .chip-paper::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  flex: 0 0 auto;
  margin-right: .1rem;
}
.chip-code::before  { background: #7c5cd6; }
.chip-data::before  { background: #1f9d76; }
.chip-paper::before { background: var(--accent); }

/* --------------------------------------------------------------------------
   9. Publications
   -------------------------------------------------------------------------- */

.pub-list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  max-width: none;
  counter-reset: none;
}

.pub {
  display: grid;
  grid-template-columns: 3.1rem minmax(0, 1fr);
  gap: 1.15rem;
  padding: 1.15rem 0;
  margin: 0;
  border-top: 1px solid var(--border);
}
.pub:first-child { border-top: 0; padding-top: .3rem; }

.pub-year {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--faint);
  padding-top: .05rem;
  font-variant-numeric: tabular-nums;
}

.pub-title {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.38;
  color: var(--text-strong);
  margin-bottom: .3rem;
}
a.pub-title:hover { color: var(--accent); text-decoration: none; }

.pub-authors {
  margin: 0 0 .18rem;
  font-size: .89rem;
  color: var(--muted);
  max-width: none;
}
.pub-authors .me { color: var(--text-strong); font-weight: 600; }

.pub-venue {
  margin: 0 0 .55rem;
  font-size: .89rem;
  color: var(--muted);
  max-width: none;
}
.pub-venue em { color: var(--text); font-style: italic; }

.pub-note {
  margin: -.35rem 0 .55rem;
  font-size: .82rem;
  color: var(--faint);
  max-width: none;
}

.pub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: none;
}
.pub-actions li { margin: 0; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .18rem .6rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: .755rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--muted);
  background: var(--bg-raised);
  transition: all .15s var(--ease);
}
a.chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   10. Teaching / CV tables
   -------------------------------------------------------------------------- */

.entry {
  display: grid;
  grid-template-columns: 10.5rem minmax(0, 1fr);
  gap: 1.4rem;
  padding: 1.15rem 0;
  border-top: 1px solid var(--border);
}
.entry:first-of-type { border-top: 0; padding-top: .3rem; }

.entry-when {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--faint);
  padding-top: .3rem;
}

.entry-what h3 { margin: 0 0 .12rem; font-size: var(--step-1); }
.entry-where { margin: 0 0 .6rem; font-size: .88rem; color: var(--muted); max-width: none; }
.entry-what > :last-child { margin-bottom: 0; }

.course-list {
  list-style: none;
  padding: 0;
  margin: .5rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: .42rem;
  max-width: none;
}
.course-list li { margin: 0; }
.course-list span {
  display: inline-block;
  padding: .22rem .62rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  font-size: .81rem;
  color: var(--text);
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(258px, 1fr));
  gap: 1rem;
  margin: 1.1rem 0 0;
}
.skill-card {
  padding: .95rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-subtle);
}
.skill-card h3 {
  margin: 0 0 .4rem;
  font-family: var(--font-sans);
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--faint);
}
.skill-card p { margin: 0; font-size: .885rem; line-height: 1.55; max-width: none; }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(238px, 1fr));
  gap: 1rem;
  margin: 1.1rem 0 0;
}
.contact-card {
  padding: .95rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.contact-card h3 {
  margin: 0 0 .3rem;
  font-family: var(--font-sans);
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--faint);
}
.contact-card p { margin: 0; font-size: .885rem; line-height: 1.55; max-width: none; }

/* --------------------------------------------------------------------------
   11. Footer
   -------------------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
  padding: 2.1rem 0;
  margin-top: auto;
}
.footer-inner { text-align: center; }
.footer-name { margin: 0 0 .2rem; font-size: .9rem; font-weight: 600; color: var(--text-strong); max-width: none; }
.footer-meta { margin: 0 0 .9rem; font-size: .845rem; color: var(--muted); max-width: none; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.15rem;
  list-style: none;
  margin: 0 0 .9rem;
  padding: 0;
  max-width: none;
}
.footer-links li { margin: 0; }
.footer-links a { font-size: .855rem; color: var(--muted); }
.footer-links a:hover { color: var(--accent); }
.footer-colophon { margin: 0; font-size: .78rem; color: var(--faint); max-width: none; }

/* --------------------------------------------------------------------------
   12. Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 950px) {
  :root { --gap: 2.5rem; --rail: 210px; }
}

@media (max-width: 800px) {
  .layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.25rem;
    padding-top: 2.25rem;
  }

  .sidebar { position: static; }

  .sidebar-inner {
    display: grid;
    grid-template-columns: 104px minmax(0, 1fr);
    grid-template-areas:
      "avatar identity"
      "links  links";
    column-gap: 1.25rem;
    align-items: center;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
  }
  .avatar { grid-area: avatar; width: 104px; height: 104px; margin-bottom: 0; }
  .sidebar-identity { grid-area: identity; min-width: 0; }
  .sidebar-meta { margin-bottom: 0; }
  .sidebar-links {
    grid-area: links;
    margin-top: 1.2rem;
    margin-bottom: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: .1rem .9rem;
  }

  .nav-toggle {
    display: inline-grid;
    justify-items: center;
    align-content: center;
    gap: 4px;
    order: 3;
    width: 34px;
    height: 34px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: transparent;
    cursor: pointer;
  }
  .nav-toggle-bar { display: block; width: 15px; height: 1.6px; background: var(--muted); border-radius: 2px; }

  .site-nav {
    order: 4;
    flex-basis: 100%;
    margin-left: 0;
    display: none;
    padding-bottom: .75rem;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: .1rem; }
  .site-nav a { padding: .55rem .7rem; }

  .theme-toggle { margin-left: auto; order: 2; }
  .masthead-inner { flex-wrap: wrap; }
}

@media (max-width: 560px) {
  .wrap { padding-inline: 1.15rem; }
  .sidebar-inner {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "avatar" "identity" "links";
    justify-items: start;
  }
  .avatar { margin-bottom: .9rem; }
  .sidebar-identity { width: 100%; }
  .sidebar-links { grid-template-columns: minmax(0, 1fr); margin-top: 1rem; }
  .pub { grid-template-columns: minmax(0, 1fr); gap: .35rem; }
  .pub-year { padding-top: 0; font-size: .8rem; letter-spacing: .05em; }
  .entry { grid-template-columns: minmax(0, 1fr); gap: .45rem; }
  .entry-when { padding-top: 0; }
  .news > li { grid-template-columns: minmax(0, 1fr); gap: .2rem; }
}

/* --------------------------------------------------------------------------
   13. Print
   -------------------------------------------------------------------------- */

@media print {
  .masthead, .site-footer, .theme-toggle, .nav-toggle, .btn-cv, .skip-link { display: none !important; }
  .layout { display: block; padding: 0; }
  body { color: #000; background: #fff; font-size: 11pt; }
  a { color: #000; text-decoration: underline; }
}