/* ------------------------------------------------------------------ */
/* Minimalist academic theme                                          */
/* Black-and-white with a single dark-navy accent. No gradients,      */
/* no card shadows, no motion beyond simple color/underline changes.  */
/* ------------------------------------------------------------------ */

:root {
  --ink: #111111;
  --slate: #5c5c5c;
  --navy: #14213d;
  --hairline: #dddddd;
  --paper: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
}

h1, h2, h3, h4, h5 {
  color: var(--ink);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.page-title-with-logo {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.page-title-with-logo h1 {
  margin: 0;
}
.page-title-logo {
  height: 5rem;
  width: auto;
  flex-shrink: 0;
}

p {
  color: var(--ink);
}

a {
  color: var(--navy);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}
a:hover {
  border-bottom-color: var(--navy);
}

::selection {
  background: var(--navy);
  color: #fff;
}

/* ------------------------------------------------------------------ */
/* Navbar — plain, quiet, text-only                                   */
/* ------------------------------------------------------------------ */
.navbar {
  background: var(--paper) !important;
  border-bottom: 1px solid var(--hairline);
  box-shadow: none !important;
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
}
.navbar-title,
.navbar-brand {
  font-family: "Source Serif 4", serif;
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--ink) !important;
}
.navbar-nav .nav-link {
  color: var(--ink) !important;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
  padding: 0.5rem 0.7rem !important;
  border-bottom: 1px solid transparent;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--navy) !important;
  border-bottom-color: var(--navy);
}
.navbar #quarto-search svg {
  color: var(--ink);
}

/* Footer -------------------------------------------------------------*/
.nav-footer {
  background: var(--paper);
  border-top: 1px solid var(--hairline);
  color: var(--slate);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}
.nav-footer a {
  color: var(--slate);
}
.nav-footer a:hover {
  color: var(--navy);
}

/* ------------------------------------------------------------------ */
/* Section rhythm                                                     */
/* ------------------------------------------------------------------ */
.rule {
  border: none;
  border-top: 1px solid var(--hairline);
  margin: 3.5rem 0;
}

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--slate);
  border-top: 2px solid var(--navy);
  padding-top: 0.6rem;
  margin-bottom: 0.8rem;
}

section.page-section h2 {
  font-size: 2rem;
  margin-bottom: 1.6rem;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.6rem;
}
.section-head .view-all {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ------------------------------------------------------------------ */
/* Hero                                                                */
/* ------------------------------------------------------------------ */
.hero {
  display: grid;
  grid-template-columns: 2.5fr 1.5fr;
  gap: 4rem;
  align-items: center;
  padding: 3rem 0 4rem 0;
}

.hero-eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--slate);
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: 3.4rem;
  line-height: 1.08;
  margin-bottom: 1rem;
}

.hero-role {
  font-size: 1.2rem;
  color: var(--slate);
  margin-bottom: 0.4rem;
}

.hero-affiliation {
  font-size: 1rem;
  color: var(--slate);
  margin-bottom: 1.6rem;
}

.hero-interests {
  font-size: 1.05rem;
  max-width: 46ch;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-figure {
  aspect-ratio: 4 / 5;
  max-width: 300px;
  justify-self: center;
  object-fit: cover;
  background: #f2f2f2;
  border: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--slate);
  font-family: "Source Serif 4", serif;
  font-size: 0.85rem;
  text-align: center;
  padding: 1rem;
}
/* Once you have a real headshot, replace the .hero-figure placeholder div with:
   <img src="images/profile.jpg" class="hero-figure" alt="Portrait of Usman Ahmed"> */

/* Buttons --------------------------------------------------------------*/
.btn-line {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
  border-radius: 2px;
  border: 1px solid var(--navy);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.btn-line:hover {
  border-bottom: 1px solid var(--navy);
}
.btn-solid {
  background: var(--navy);
  color: #fff !important;
}
.btn-solid:hover {
  background: #0c1730;
  color: #fff !important;
}
.btn-outline {
  background: transparent;
  color: var(--navy) !important;
}
.btn-outline:hover {
  background: var(--navy);
  color: #fff !important;
}

/* ------------------------------------------------------------------ */
/* Row list — the core reusable component                             */
/* (Research areas, Projects, Publications, CV entries)               */
/* ------------------------------------------------------------------ */
.row-list {
  border-top: 1px solid var(--hairline);
}
.row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2rem;
  padding: 1.9rem 0;
  border-bottom: 1px solid var(--hairline);
}
.row-meta {
  color: var(--slate);
  font-size: 0.85rem;
  padding-top: 0.2rem;
}
.row-content h3 {
  font-size: 1.15rem;
  margin: 0 0 0.4rem 0;
}
.row-content p {
  margin: 0;
  color: var(--slate);
  font-size: 0.97rem;
}
.row-content a {
  color: var(--ink);
  border-bottom: 1px solid var(--hairline);
}
.row-content a:hover {
  color: var(--navy);
  border-bottom-color: var(--navy);
}

/* Team member photo (used in place of .row-meta on team.qmd) --------*/
.row-photo {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--hairline);
}
.row-photo-placeholder {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: #f2f2f2;
  border: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--slate);
  font-size: 0.75rem;
  text-align: center;
}

/* Projects funding table ---------------------------------------------*/
.projects-table-wrap {
  overflow-x: auto;
}
.projects-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.5rem 0 2rem 0;
  font-size: 0.95rem;
}
.projects-table th {
  text-align: left;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--slate);
  font-weight: 600;
  border-bottom: 2px solid var(--navy);
  padding: 0.6rem 1.2rem 0.6rem 0;
  white-space: nowrap;
}
.projects-table td {
  vertical-align: top;
  border-bottom: 1px solid var(--hairline);
  padding: 1rem 1.2rem 1rem 0;
}
.projects-table th:last-child,
.projects-table td:last-child {
  padding-right: 0;
}
.projects-table .project-title {
  margin-bottom: 0.3rem;
}
.projects-table .project-title p,
.projects-table .project-desc p {
  font-size: inherit;
  margin: 0;
}
.projects-table .project-desc {
  color: var(--slate);
  font-size: 0.88rem;
}

/* Plain multi-column list (Research Areas — no meta column) ---------*/
.plain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2.5rem 2.5rem;
  border-top: 1px solid var(--hairline);
  padding-top: 2rem;
}
.plain-grid > div h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}
.plain-grid > div p {
  color: var(--slate);
  font-size: 0.95rem;
  margin: 0;
}

/* Publications -----------------------------------------------------*/
.pub-entry {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--hairline);
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1.5rem;
}
.row-list > .pub-entry:first-child,
.pub-list > .pub-entry:first-child {
  border-top: 1px solid var(--hairline);
}
.pub-list {
  border-top: 1px solid var(--hairline);
}
.pub-year {
  color: var(--slate);
  font-size: 0.9rem;
  padding-top: 0.15rem;
}
.pub-body p {
  margin: 0 0 0.35rem 0;
}
.pub-self {
  font-weight: 600;
  color: var(--ink);
}
.pub-links {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.pub-links a {
  margin-right: 1rem;
  color: var(--slate);
  border-bottom: 1px solid var(--hairline);
}
.pub-links a:hover {
  color: var(--navy);
  border-bottom-color: var(--navy);
}

/* Status tag (projects) — plain text, no color fill ------------------*/
.tag {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--slate);
  border: 1px solid var(--hairline);
  border-radius: 2px;
  padding: 0.1rem 0.5rem;
  margin-left: 0.6rem;
  vertical-align: middle;
}

/* News (Quarto default listing overrides) ----------------------------*/
#quarto-listing-container-default .quarto-post,
.quarto-listing .quarto-post {
  border-top: 1px solid var(--hairline);
  padding-top: 1.4rem;
}
.quarto-listing .listing-date,
.quarto-listing .quarto-post .metadata {
  color: var(--slate) !important;
  font-size: 0.85rem;
}
.quarto-listing .quarto-post .body h3.listing-title,
.quarto-listing .quarto-post .listing-title {
  font-size: 1.1rem;
}
.quarto-listing a {
  border-bottom: none;
}

/* Two-column layout utility (About, Contact) -------------------------*/
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}
.split-narrow {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

/* CV ------------------------------------------------------------------*/
.cv-download {
  display: inline-block;
  border: 1px solid var(--navy);
  color: var(--navy);
  padding: 0.6rem 1.4rem;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: 2px;
  margin-bottom: 2rem;
}
.cv-download:hover {
  background: var(--navy);
  color: #fff;
}

.note {
  color: var(--slate);
  font-size: 0.92rem;
  max-width: 60ch;
}

/* Contact --------------------------------------------------------------*/
.contact-block h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin-bottom: 0.5rem;
  font-family: "Inter", sans-serif;
  font-weight: 600;
}

/* Responsive -----------------------------------------------------------*/
@media (max-width: 780px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .hero-figure {
    max-width: 260px;
  }
  .hero h1 {
    font-size: 2.4rem;
  }
  .row,
  .pub-entry {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
  .split,
  .split-narrow {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}