/* Academic visual refinement
   A restrained, readable presentation for a quantitative marine science profile. */

:root {
  --academic-bg: #06131d;
  --academic-surface: #0a1d2a;
  --academic-surface-2: #0d2534;
  --academic-surface-3: #113044;
  --academic-border: #24485d;
  --academic-border-soft: #17384b;
  --academic-text: #eef4f7;
  --academic-text-soft: #cbd9e0;
  --academic-muted: #a9bbc4;
  --academic-heading: #ffffff;
  --academic-link: #77cdeb;
  --academic-link-hover: #b9edff;
  --academic-accent: #5db7d7;
  --academic-radius: 0.65rem;
  --academic-shadow: 0 0.75rem 2rem rgba(0, 0, 0, 0.18);
  --academic-font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --academic-font-serif: Georgia, "Times New Roman", serif;
}

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--academic-font-sans) !important;
  font-size: 1rem;
  line-height: 1.68;
  letter-spacing: 0.002em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  background-color: var(--academic-bg) !important;
}

/* Main page frame */

#main {
  width: min(100%, 1500px) !important;
  max-width: 1500px !important;
  margin-right: auto !important;
  margin-left: auto !important;
  padding-right: clamp(0.8rem, 2vw, 2rem) !important;
  padding-left: clamp(0.8rem, 2vw, 2rem) !important;
  box-sizing: border-box;
}

.page,
.archive {
  color: var(--academic-text) !important;
}

.page__inner-wrap,
.archive {
  background: var(--academic-surface) !important;
  border: 1px solid var(--academic-border-soft) !important;
  border-radius: var(--academic-radius);
  box-shadow: var(--academic-shadow);
}

.page__inner-wrap {
  padding: clamp(1.2rem, 2.5vw, 2.35rem) !important;
}

.archive {
  padding: clamp(1.2rem, 2.5vw, 2.35rem) !important;
}

.page--home .page__inner-wrap,
.page--home .archive,
.home .page__inner-wrap {
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  padding: 0 !important;
}

/* Typography hierarchy */

h1,
h2,
h3,
h4,
h5,
h6,
.page__title,
.archive__subtitle,
.archive__item-title {
  font-family: var(--academic-font-sans) !important;
  color: var(--academic-heading) !important;
  font-weight: 720 !important;
  letter-spacing: -0.018em;
}

.page__title,
.archive > h1,
.page__content > h1:first-child {
  margin-top: 0 !important;
  margin-bottom: 1.15rem !important;
  font-size: clamp(2rem, 3vw, 3rem) !important;
  line-height: 1.12 !important;
}

.page__content h2,
.archive h2 {
  margin-top: 2.5rem !important;
  margin-bottom: 0.9rem !important;
  padding-bottom: 0.48rem;
  font-size: clamp(1.45rem, 2vw, 1.95rem) !important;
  line-height: 1.2 !important;
  border-bottom: 1px solid var(--academic-border) !important;
}

.page__content h3,
.archive h3 {
  margin-top: 1.8rem !important;
  margin-bottom: 0.55rem !important;
  font-size: clamp(1.16rem, 1.5vw, 1.38rem) !important;
  line-height: 1.3 !important;
}

.page__content p,
.page__content li,
.archive p,
.archive li {
  color: var(--academic-text-soft) !important;
  font-size: 1rem !important;
  line-height: 1.72 !important;
}

.page__content p,
.archive p {
  max-width: 78ch;
}

.page__content strong,
.archive strong {
  color: var(--academic-heading) !important;
  font-weight: 700;
}

.page__content em,
.archive em {
  color: #dce8ed !important;
}

.page__content a,
.archive a {
  color: var(--academic-link) !important;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

.page__content a:hover,
.archive a:hover {
  color: var(--academic-link-hover) !important;
}

/* Lists and reading rhythm */

.page__content ul,
.page__content ol,
.archive ul,
.archive ol {
  margin-top: 0.7rem;
  margin-bottom: 1.25rem;
  padding-left: 1.35rem;
}

.page__content li + li,
.archive li + li {
  margin-top: 0.35rem;
}

hr {
  margin: 2.4rem 0 !important;
  border: 0 !important;
  border-top: 1px solid var(--academic-border) !important;
}

/* Sidebar as a stable academic profile card */

.sidebar {
  background: #071923 !important;
  border: 1px solid var(--academic-border-soft) !important;
  border-radius: var(--academic-radius);
  box-shadow: 0 0.55rem 1.5rem rgba(0, 0, 0, 0.16) !important;
  padding: 1rem !important;
}

.author__avatar img {
  border: 3px solid #dcecf2 !important;
  box-shadow: none !important;
}

.author__name {
  margin-top: 0.8rem !important;
  color: #ffffff !important;
  font-size: 1.18rem !important;
  line-height: 1.2 !important;
}

.author__bio {
  color: var(--academic-muted) !important;
  font-size: 0.9rem !important;
  line-height: 1.5 !important;
}

.author__urls li a {
  color: #d6e5eb !important;
  font-size: 0.9rem !important;
}

.author__urls li a:hover {
  color: var(--academic-link-hover) !important;
}

/* Archive entries resemble compact academic records */

.list__item,
.archive__item {
  margin-bottom: 1rem !important;
}

.archive__item {
  padding: 1.05rem 1.15rem !important;
  background: var(--academic-surface-2) !important;
  border: 1px solid var(--academic-border-soft) !important;
  border-radius: 0.55rem;
  transition: transform 0.16s ease, border-color 0.16s ease, background-color 0.16s ease;
}

.archive__item:hover {
  transform: translateY(-1px);
  background: var(--academic-surface-3) !important;
  border-color: var(--academic-border) !important;
}

.archive__item-title {
  margin-top: 0 !important;
  margin-bottom: 0.45rem !important;
  font-size: 1.22rem !important;
  line-height: 1.3 !important;
}

.archive__item-excerpt,
.archive__item p {
  color: var(--academic-muted) !important;
  font-size: 0.96rem !important;
  line-height: 1.58 !important;
}

.page__meta,
.archive__item-meta,
.page__date {
  color: var(--academic-muted) !important;
  font-size: 0.86rem !important;
  letter-spacing: 0.015em;
}

/* Cards and notices */

.notice,
.notice--info,
.notice--primary,
.notice--success,
.notice--warning,
.data-card,
.info-card,
.featured-card {
  padding: 1.15rem 1.2rem !important;
  background: var(--academic-surface-2) !important;
  border: 1px solid var(--academic-border) !important;
  border-radius: 0.58rem !important;
  box-shadow: none !important;
}

.grid__item,
.feature__item,
.page__content article {
  border-radius: var(--academic-radius);
}

/* Tables and code */

table {
  width: 100%;
  margin: 1.3rem 0 !important;
  border-collapse: separate !important;
  border-spacing: 0;
  overflow: hidden;
  background: #071923 !important;
  border: 1px solid var(--academic-border) !important;
  border-radius: 0.5rem;
}

thead {
  background: #103247 !important;
}

th {
  color: #ffffff !important;
  font-weight: 700 !important;
}

th,
td {
  padding: 0.72rem 0.82rem !important;
  border-bottom: 1px solid var(--academic-border-soft) !important;
}

tr:last-child td {
  border-bottom: 0 !important;
}

pre,
code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace !important;
}

pre {
  padding: 1rem 1.1rem !important;
  background: #041018 !important;
  border: 1px solid var(--academic-border-soft) !important;
  border-radius: 0.5rem !important;
}

:not(pre) > code {
  padding: 0.12rem 0.35rem;
  background: #102b3b !important;
  border-radius: 0.3rem;
}

/* Buttons */

.btn,
.page__content .btn {
  padding: 0.64rem 0.9rem !important;
  background: #0c4963 !important;
  color: #ffffff !important;
  border: 1px solid #2b7896 !important;
  border-radius: 0.45rem !important;
  font-size: 0.92rem !important;
  font-weight: 700 !important;
  box-shadow: none !important;
}

.btn:hover,
.page__content .btn:hover {
  background: #12617f !important;
  border-color: #55a6c3 !important;
}

/* Homepage sections: solid, ordered, and less decorative */

.page--home .page__content > section,
.page--home .home-section,
.page--home .feature-row,
.page--home .grid__wrapper {
  margin: 1.25rem 0 !important;
  padding: clamp(1.25rem, 2.5vw, 2rem) !important;
  background: var(--academic-surface) !important;
  border: 1px solid var(--academic-border-soft) !important;
  border-radius: var(--academic-radius);
  box-shadow: 0 0.6rem 1.7rem rgba(0, 0, 0, 0.14);
}

.page--home #marine-hero {
  margin-bottom: 1.4rem !important;
  background: #061724 !important;
  border: 1px solid var(--academic-border-soft) !important;
  border-radius: var(--academic-radius);
  box-shadow: var(--academic-shadow);
}

.page--home .hero-title h1 {
  font-size: clamp(2.25rem, 4vw, 3.65rem) !important;
  line-height: 1.06 !important;
  letter-spacing: -0.035em !important;
}

.page--home .hero-bio p {
  max-width: 68ch;
  margin-right: auto;
  margin-left: auto;
  color: #d5e4ea !important;
  font-size: clamp(1.02rem, 1.5vw, 1.18rem) !important;
  line-height: 1.65 !important;
}

/* Footer */

.page__footer {
  background: #041018 !important;
  border-top: 1px solid var(--academic-border) !important;
}

.page__footer,
.page__footer p,
.page__footer li {
  color: var(--academic-muted) !important;
  font-size: 0.88rem !important;
}

/* Accessibility and focus */

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid #8dd9f3 !important;
  outline-offset: 3px;
}

/* Responsive behavior */

@media (min-width: 1024px) {
  .page,
  .archive {
    min-width: 0;
  }

  .page__content {
    font-size: 1rem;
  }
}

@media (max-width: 1023px) {
  html {
    font-size: 16px;
  }

  #main {
    padding-right: 0.65rem !important;
    padding-left: 0.65rem !important;
  }

  .sidebar {
    border-radius: 0.5rem;
  }

  .page__inner-wrap,
  .archive {
    padding: 1.1rem !important;
  }
}

@media (max-width: 600px) {
  .page__title,
  .archive > h1,
  .page__content > h1:first-child {
    font-size: 1.85rem !important;
  }

  .page__content h2,
  .archive h2 {
    font-size: 1.42rem !important;
  }

  .archive__item {
    padding: 0.95rem !important;
  }
}