:root {
  color-scheme: light;
  --bg: #f4f3ef;
  --bg-start: #f8fbff;
  --bg-mid: #f1f5fb;
  --bg-end: #dce3ef;
  --ink: #1f2427;
  --muted: #5b6469;
  --line: #cbd5e8;
  --accent: #2f6fe4;
  --accent-soft: rgba(47, 111, 228, 0.14);
  --header-border: rgba(233, 235, 228, 0.72);
  --header-bg: rgba(20, 28, 32, 0.7);
  --header-link: #d8ddd8;
  --header-link-active: #f5f6f4;
  --header-link-bg: rgba(111, 157, 245, 0.24);
  --nav-toggle-bg: rgba(240, 245, 245, 0.12);
  --nav-toggle-ink: #f5f6f4;
  --kicker-ink: #7195cf;
  --section-start: rgba(247, 251, 255, 0.96);
  --section-end: rgba(237, 242, 250, 0.92);
  --section-border: rgba(192, 208, 237, 0.92);
  --card-start: rgba(255, 255, 255, 0.84);
  --card-end: rgba(239, 244, 252, 0.92);
  --heading-ink: #162125;
  --timeline-start: #8db3ea;
  --timeline-end: #6d94d8;
  --timeline-dot-border: #3f72cb;
  --timeline-dot-fill: #f4f3ef;
  --time-ink: #3f67aa;
  --chip-border: rgba(123, 156, 222, 0.56);
  --chip-bg: rgba(47, 111, 228, 0.12);
  --chip-ink: #2e5ba7;
  --photo-border: rgba(177, 196, 231, 0.82);
  --photo-bg: #e4e5e0;
  --input-border: #b8c9ea;
  --input-bg: rgba(255, 255, 255, 0.8);
  --input-ink: #1b2327;
  --ghost-soft-ink: #2a5bb8;
  --ghost-soft-border: rgba(80, 121, 201, 0.38);
  --ghost-soft-bg: rgba(107, 149, 226, 0.16);
  --pub-bg: rgba(254, 254, 253, 0.88);
  --pub-meta: #3f4c50;
  --tag-ink: #2d5ca8;
  --footer-ink: #5b6469;
  --footer-border: rgba(169, 185, 216, 0.65);
  --mobile-nav-border: rgba(154, 176, 214, 0.5);
  --mobile-nav-bg: rgba(18, 26, 30, 0.95);
  --button-primary-start: #3b79e3;
  --button-primary-end: #2c5fbe;
  --button-primary-ink: #f4f3ef;
  --button-ghost-border: rgba(178, 202, 242, 0.62);
  --button-ghost-bg: rgba(32, 47, 86, 0.35);
  --button-ghost-ink: #eff2ef;
  --progress-start: #9dc2fb;
  --progress-mid: var(--accent);
  --progress-end: #2e4f9c;
  --switch-track: rgba(161, 174, 176, 0.5);
  --switch-track-active: rgba(47, 111, 228, 0.85);
  --switch-thumb: #ffffff;
  --switch-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
  --lightbox-backdrop: rgba(8, 11, 13, 0.9);
  --lightbox-control-bg: rgba(255, 255, 255, 0.14);
  --lightbox-control-border: rgba(255, 255, 255, 0.4);
  --lightbox-control-ink: #f8f8f2;
  --lightbox-caption-bg: linear-gradient(0deg, rgba(5, 7, 8, 0.86), transparent);
  --shadow: 0 20px 45px rgba(24, 29, 32, 0.18);
  --radius: 16px;
}

[data-theme="monokai"] {
  color-scheme: dark;
  --bg: #1f201b;
  --bg-start: #33352d;
  --bg-mid: #24251f;
  --bg-end: #161711;
  --ink: #f8f8f2;
  --muted: #c8c4b4;
  --line: #5b5e4f;
  --accent: #66d9ef;
  --accent-soft: rgba(102, 217, 239, 0.18);
  --header-border: rgba(114, 116, 100, 0.58);
  --header-bg: rgba(26, 27, 22, 0.86);
  --header-link: #d9d6c7;
  --header-link-active: #f8f8f2;
  --header-link-bg: rgba(166, 226, 46, 0.18);
  --nav-toggle-bg: rgba(166, 226, 46, 0.16);
  --nav-toggle-ink: #f8f8f2;
  --kicker-ink: #e6db74;
  --section-start: rgba(52, 54, 45, 0.94);
  --section-end: rgba(36, 37, 31, 0.92);
  --section-border: rgba(94, 97, 81, 0.9);
  --card-start: rgba(66, 68, 57, 0.86);
  --card-end: rgba(46, 47, 40, 0.92);
  --heading-ink: #f8f8f2;
  --timeline-start: #fd971f;
  --timeline-end: #66d9ef;
  --timeline-dot-border: #e6db74;
  --timeline-dot-fill: #272822;
  --time-ink: #fd971f;
  --chip-border: rgba(166, 226, 46, 0.5);
  --chip-bg: rgba(166, 226, 46, 0.18);
  --chip-ink: #dff4a7;
  --photo-border: rgba(102, 105, 89, 0.8);
  --photo-bg: #2b2c25;
  --input-border: #666a57;
  --input-bg: rgba(31, 32, 27, 0.94);
  --input-ink: #f8f8f2;
  --ghost-soft-ink: #f8f8f2;
  --ghost-soft-border: rgba(230, 219, 116, 0.52);
  --ghost-soft-bg: rgba(230, 219, 116, 0.16);
  --pub-bg: rgba(47, 49, 40, 0.92);
  --pub-meta: #d6d2c3;
  --tag-ink: #f8f8f2;
  --footer-ink: #b8b4a4;
  --footer-border: rgba(110, 113, 95, 0.62);
  --mobile-nav-border: rgba(110, 113, 95, 0.62);
  --mobile-nav-bg: rgba(27, 28, 23, 0.97);
  --button-primary-start: #fd971f;
  --button-primary-end: #ae81ff;
  --button-primary-ink: #1f201b;
  --button-ghost-border: rgba(230, 219, 116, 0.58);
  --button-ghost-bg: rgba(230, 219, 116, 0.14);
  --button-ghost-ink: #f8f8f2;
  --progress-start: #a6e22e;
  --progress-mid: #fd971f;
  --progress-end: #ae81ff;
  --switch-track: rgba(109, 111, 95, 0.75);
  --switch-track-active: linear-gradient(110deg, #fd971f, #ae81ff);
  --switch-thumb: #f8f8f2;
  --switch-shadow: 0 1px 8px rgba(0, 0, 0, 0.45);
  --lightbox-backdrop: rgba(10, 11, 8, 0.93);
  --lightbox-control-bg: rgba(166, 226, 46, 0.22);
  --lightbox-control-border: rgba(230, 219, 116, 0.62);
  --lightbox-control-ink: #f8f8f2;
  --lightbox-caption-bg: linear-gradient(0deg, rgba(10, 11, 8, 0.88), transparent);
  --shadow: 0 20px 45px rgba(0, 0, 0, 0.52);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: radial-gradient(circle at 80% -10%, var(--bg-start) 2%, var(--bg-mid) 40%, var(--bg-end) 100%);
  color: var(--ink);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  line-height: 1.55;
  transition: background 320ms ease, color 220ms ease;
}

body.modal-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--accent);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  width: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--progress-start), var(--progress-mid), var(--progress-end));
}

.site-header {
  position: fixed;
  top: 0.75rem;
  left: 50%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1100px, calc(100% - 1.5rem));
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--header-border);
  border-radius: 999px;
  transform: translateX(-50%);
  backdrop-filter: blur(12px);
  background: var(--header-bg);
}

.brand {
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  color: var(--header-link-active);
  text-decoration: none;
  letter-spacing: 0.08em;
  font-size: 0.86rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.site-nav a {
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  color: var(--header-link);
  text-decoration: none;
  font-size: 0.85rem;
}

.site-nav a.active,
.site-nav a:hover {
  color: var(--header-link-active);
  background: var(--header-link-bg);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.theme-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  color: var(--header-link);
  cursor: pointer;
}

.theme-text {
  min-width: 8.5rem;
  text-align: right;
  font-size: 0.74rem;
}

.theme-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.theme-slider {
  position: relative;
  width: 42px;
  height: 22px;
  border-radius: 999px;
  background: var(--switch-track);
  border: 1px solid var(--line);
  transition: background 220ms ease;
}

.theme-slider::before {
  content: "";
  position: absolute;
  top: 1px;
  left: 1px;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--switch-thumb);
  box-shadow: var(--switch-shadow);
  transition: transform 220ms ease;
}

.theme-switch input:checked + .theme-slider {
  background: var(--switch-track-active);
}

.theme-switch input:checked + .theme-slider::before {
  transform: translateX(20px);
}

.theme-switch input:focus-visible + .theme-slider {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-toggle {
  display: none;
  border: 0;
  border-radius: 999px;
  background: var(--nav-toggle-bg);
  color: var(--nav-toggle-ink);
  font-family: inherit;
  font-size: 0.8rem;
  padding: 0.5rem 0.8rem;
}

.panel {
  position: relative;
  padding: clamp(5rem, 8vw, 8rem) clamp(1rem, 3vw, 2rem);
}

.hero {
  min-height: 100vh;
  display: grid;
  align-content: center;
  gap: 2rem;
  padding-top: 7.75rem;
  overflow: clip;
}

.hero-bg {
  position: absolute;
  inset: -6vh 0 0;
  background-image: url("assets/photos/ant_flyover_2017.jpg");
  background-position: center 40%;
  background-size: cover;
  transform: translateY(calc(var(--parallax-shift, 0px) * 1));
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(9, 13, 16, 0.75) 15%, rgba(9, 13, 16, 0.35) 45%, rgba(244, 243, 239, 0.12) 100%),
    radial-gradient(circle at 15% 85%, rgba(96, 138, 146, 0.35), transparent 45%);
}

.hero-content,
.hero-facts,
.section,
.site-footer {
  position: relative;
  width: min(1100px, 100%);
  margin: 0 auto;
}

.kicker {
  margin: 0 0 0.4rem;
  color: var(--kicker-ink);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.74rem;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.1;
  font-family: "Newsreader", Georgia, serif;
}

h1 {
  color: #f6f4ef;
  font-size: clamp(2.2rem, 5.8vw, 4.7rem);
  max-width: 12ch;
}

.lead {
  max-width: 60ch;
  margin: 1rem 0 1.4rem;
  color: #e8ece8;
  font-size: clamp(1rem, 1.6vw, 1.22rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.62rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  color: var(--ink);
  font-size: 0.92rem;
}

.button.primary {
  border-color: transparent;
  color: var(--button-primary-ink);
  background: linear-gradient(110deg, var(--button-primary-start), var(--button-primary-end));
}

.button.ghost {
  border-color: var(--button-ghost-border);
  color: var(--button-ghost-ink);
  background: var(--button-ghost-bg);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.hero-facts article {
  border: 1px solid rgba(223, 230, 227, 0.45);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  color: #eef2ef;
  background: rgba(18, 27, 31, 0.45);
  backdrop-filter: blur(4px);
}

.hero-facts h3 {
  font-size: 1.28rem;
  color: #f6f8f4;
}

.hero-facts p {
  margin: 0.45rem 0 0;
  color: #d3dbd7;
  font-size: 0.9rem;
}

.section {
  z-index: 1;
}

.section::before {
  content: "";
  position: absolute;
  inset: 0.7rem 0 0;
  width: min(1100px, 100%);
  margin: 0 auto;
  background: linear-gradient(180deg, var(--section-start), var(--section-end));
  border: 1px solid var(--section-border);
  border-radius: 22px;
  box-shadow: var(--shadow);
  z-index: -1;
}

.section-header {
  max-width: 78ch;
  margin-bottom: 1.5rem;
}

.section-header h2 {
  font-size: clamp(1.65rem, 3.4vw, 2.8rem);
  color: var(--ink);
}

.section-copy {
  margin-top: 0.6rem;
  color: var(--muted);
}

.impact-grid {
  display: grid;
  gap: 0.95rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.05rem;
  background: linear-gradient(175deg, var(--card-start), var(--card-end));
}

.card h3 {
  font-size: 1.32rem;
  color: var(--heading-ink);
}

.card p,
.card ul {
  margin: 0.65rem 0 0;
  color: var(--muted);
}

.timeline {
  position: relative;
  display: grid;
  gap: 0.95rem;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0.62rem;
  width: 2px;
  background: linear-gradient(180deg, var(--timeline-start), var(--timeline-end));
}

.timeline-item {
  position: relative;
  margin-left: 1.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.95rem 1rem;
  background: linear-gradient(180deg, var(--card-start), var(--card-end));
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 1rem;
  left: -1.39rem;
  width: 0.78rem;
  height: 0.78rem;
  border-radius: 999px;
  border: 2px solid var(--timeline-dot-border);
  background: var(--timeline-dot-fill);
}

.timeline-item h3 {
  font-size: 1.15rem;
}

.timeline-item p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.time {
  display: inline-block;
  margin-bottom: 0.4rem;
  color: var(--time-ink);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.fieldwork {
  overflow: visible;
}

.location-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0 0 1rem;
  padding: 0.7rem 0;
  overflow: visible;
}

.location-strip::-webkit-scrollbar {
  display: none;
}

.location-strip span {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--chip-border);
  color: var(--chip-ink);
  background: var(--chip-bg);
  white-space: normal;
  max-width: 100%;
  font-size: 0.84rem;
}

.photo-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.photo-card {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--photo-border);
  background: var(--photo-bg);
  min-height: 210px;
  grid-column: span 4;
  cursor: zoom-in;
}

.photo-card.large {
  grid-column: span 8;
  min-height: 320px;
}

.photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms ease;
}

.photo-card:hover img {
  transform: scale(1.06);
}

.photo-card figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 0.65rem 0.75rem;
  color: #f4f3ef;
  font-size: 0.82rem;
  background: linear-gradient(0deg, rgba(18, 25, 29, 0.86), transparent);
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--lightbox-backdrop);
}

.lightbox[hidden] {
  display: none;
}

.lightbox-figure {
  margin: 0;
  display: grid;
  justify-items: center;
  max-height: calc(100vh - 2rem);
}

.lightbox-figure img {
  width: auto;
  max-width: min(1200px, calc(100vw - 8rem));
  max-height: calc(100vh - 8rem);
  border-radius: 12px;
  border: 1px solid var(--lightbox-control-border);
  object-fit: contain;
}

.lightbox-figure figcaption {
  margin-top: 0.6rem;
  color: var(--lightbox-control-ink);
  background: var(--lightbox-caption-bg);
  padding: 0.4rem 0.65rem;
  border-radius: 10px;
  text-align: center;
  max-width: min(900px, calc(100vw - 3rem));
}

.lightbox-close,
.lightbox-nav {
  border: 1px solid var(--lightbox-control-border);
  background: var(--lightbox-control-bg);
  color: var(--lightbox-control-ink);
  border-radius: 999px;
  width: 2.85rem;
  height: 2.85rem;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease;
}

.lightbox-close:hover,
.lightbox-nav:hover {
  transform: scale(1.04);
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.85rem;
}

.lightbox-nav.prev {
  justify-self: start;
}

.lightbox-nav.next {
  justify-self: end;
}

.pub-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.pub-controls label {
  display: grid;
  gap: 0.32rem;
  font-size: 0.84rem;
  color: var(--muted);
}

.pub-controls select,
.pub-controls input {
  width: 100%;
  border: 1px solid var(--input-border);
  border-radius: 10px;
  padding: 0.6rem 0.65rem;
  font: inherit;
  color: var(--input-ink);
  background: var(--input-bg);
}

.pub-controls select:focus-visible,
.pub-controls input:focus-visible {
  border-color: var(--accent);
  outline: 2px solid transparent;
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.pub-toolbar {
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.pub-toolbar .button.ghost {
  color: var(--ghost-soft-ink);
  border-color: var(--ghost-soft-border);
  background: var(--ghost-soft-bg);
}

.pub-list {
  margin-top: 1rem;
  display: grid;
  gap: 0.7rem;
}

.pub-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.82rem 0.9rem;
  background: var(--pub-bg);
}

.pub-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.pub-meta {
  margin: 0;
  color: var(--pub-meta);
  font-size: 0.9rem;
}

.pub-extra {
  margin-top: 0.36rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.16rem 0.56rem;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  background: var(--accent-soft);
  color: var(--tag-ink);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.95rem;
}

.contact-grid ul {
  padding-left: 1.1rem;
}

.site-footer {
  margin-top: 1.4rem;
  color: var(--footer-ink);
  border-top: 1px solid var(--footer-border);
  padding-top: 1rem;
  font-size: 0.9rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 550ms ease, transform 550ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  .site-header {
    width: calc(100% - 1rem);
  }

  .hero-facts {
    grid-template-columns: 1fr;
  }

  .impact-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .photo-card {
    grid-column: span 6;
  }

  .photo-card.large {
    grid-column: span 12;
  }
}

@media (max-width: 760px) {
  .panel {
    padding-left: 0.65rem;
    padding-right: 0.65rem;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.45rem);
    left: 0;
    right: 0;
    border: 1px solid var(--mobile-nav-border);
    border-radius: 14px;
    flex-direction: column;
    align-items: flex-start;
    padding: 0.4rem;
    background: var(--mobile-nav-bg);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 220ms ease, transform 220ms ease;
  }

  .site-nav.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    width: 100%;
  }

  .theme-text {
    display: none;
  }

  .pub-controls {
    grid-template-columns: 1fr;
  }

  .pub-toolbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .photo-grid {
    grid-template-columns: 1fr;
  }

  .photo-card,
  .photo-card.large {
    grid-column: span 1;
    min-height: 230px;
  }

  .lightbox {
    padding: 0.65rem;
    gap: 0;
    grid-template-columns: 1fr;
  }

  .lightbox-figure img {
    max-width: calc(100vw - 1.4rem);
    max-height: calc(100vh - 8.5rem);
  }

  .lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
  }

  .lightbox-nav.prev {
    left: 0.6rem;
  }

  .lightbox-nav.next {
    right: 0.6rem;
  }

  .lightbox-close {
    top: 0.7rem;
    right: 0.7rem;
  }

  .timeline::before {
    left: 0.48rem;
  }

  .timeline-item {
    margin-left: 1.3rem;
  }

  .timeline-item::before {
    left: -1.04rem;
  }
}