/* ------------------------------------------------------------------
   Depth-Guided Computer Vision for Precision Agricultural Fertilizer
   Application — project page styles
   ------------------------------------------------------------------ */

:root {
  color-scheme: light;
  --ink:        #1f2733;
  --ink-soft:   #4a5568;
  --ink-faint:  #5c6774;   /* >=4.5:1 on both #fff and the #eef1f5 caption bg */
  --rule:       #e4e8ee;
  --accent:     #2f6f4e;   /* canopy green */
  --accent-dk:  #21503a;
  --accent-bg:  #eef5f1;
  --warn-bg:    #fdf6e7;
  --warn-rule:  #e6c15a;
  --code-bg:    #f6f8fa;
  --page:       #ffffff;
}

body {
  font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: var(--page);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4,
.title, .subtitle {
  font-family: 'Google Sans', 'Noto Sans', sans-serif;
  color: var(--ink);
}

/* ---------- hero / publication header ---------- */

.publication-logos {
  margin-bottom: 1.9rem;
}

.publication-logos img {
  height: 46px;
  width: auto;
  vertical-align: middle;
}

.publication-title {
  font-family: 'Castoro', Georgia, serif;
  font-weight: 400;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.publication-venue {
  color: var(--ink-faint);
  font-size: 0.95rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}

.publication-authors {
  margin-top: 1.1rem;
  line-height: 1.9;
}

.publication-authors .author-block {
  margin: 0 0.35rem;
  white-space: nowrap;
}

.publication-authors a {
  color: var(--accent);
  border-bottom: 1px solid rgba(47, 111, 78, 0.35);
}

.publication-authors a:hover {
  color: var(--accent-dk);
  border-bottom-color: var(--accent-dk);
}

.author-role {
  color: var(--ink-faint);
  font-size: 0.85em;
}

.publication-affiliation {
  color: var(--ink-soft);
  margin-top: 0.5rem;
}

.publication-links {
  margin-top: 1.6rem;
}

.publication-links .link-block {
  display: inline-block;
  margin: 0.25rem 0.2rem;
}

.publication-links .button.is-dark {
  background-color: #363636;
  transition: background-color 0.15s ease;
}

.publication-links .button.is-dark:hover {
  background-color: var(--accent-dk);
}

/* ---------- teaser video ---------- */

/* Source footage is portrait (1080x1920); cap height so it does not
   dominate the hero, and centre it. */
.hero.teaser video {
  display: block;
  margin: 0 auto;
  max-height: 460px;
  max-width: 100%;
  width: auto;
  border-radius: 10px;
  border: 1px solid var(--rule);
  background: #000;
}

.teaser-caption {
  color: var(--ink-soft);
  font-size: 0.92rem;
  text-align: center;
  margin-top: 0.9rem;
  line-height: 1.6;
}

.section-divider {
  max-width: 1000px;
  margin: 0 auto;
  background-color: var(--rule);
  height: 1px;
}

/* ---------- section + subsystem blocks ---------- */

.section {
  padding-top: 2.6rem;
  padding-bottom: 2.6rem;
}

.content p,
.content li {
  line-height: 1.72;
  color: var(--ink);
}

.subsystem-block {
  padding: 1.6rem 0 0.4rem;
  border-top: 1px solid var(--rule);
  margin-top: 2rem;
}

.subsystem-block:first-of-type {
  border-top: none;
  margin-top: 0.6rem;
}

.subsystem-block > .title.is-4 {
  color: var(--accent-dk);
}

.subsystem-index {
  display: inline-block;
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 0.72em;
  color: var(--accent);
  background: var(--accent-bg);
  border-radius: 4px;
  padding: 0.18em 0.5em;
  margin-right: 0.55rem;
  vertical-align: 0.14em;
}

/* ---------- figures ---------- */

.figure-block {
  margin: 1.6rem 0 0.6rem;
  text-align: center;
}

.figure-block svg {
  max-width: 100%;
  height: auto;
}

.figure-caption {
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.62;
  margin-top: 0.85rem;
  text-align: left;
}

.figure-caption strong {
  color: var(--ink);
}

/* ---------- equations ---------- */

.equation-block {
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 1.05rem 1.2rem;
  margin: 1.15rem 0;
  overflow-x: auto;
}

.equation-block .eq {
  font-family: 'Castoro', Georgia, serif;
  font-size: 1.12rem;
  color: var(--ink);
  white-space: nowrap;
}

.equation-block .eq-where {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.86rem;
  color: var(--ink-soft);
  white-space: normal;
}

.equation-block var {
  font-style: italic;
}

/* ---------- code excerpts ---------- */

.code-excerpt {
  margin: 1.2rem 0;
}

.code-excerpt pre {
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-radius: 6px 6px 0 0;
  padding: 0.95rem 1.1rem;
  font-size: 0.83rem;
  line-height: 1.55;
  overflow-x: auto;
}

.code-excerpt .code-source {
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 0.76rem;
  color: var(--ink-faint);
  background: #eef1f5;
  border: 1px solid var(--rule);
  border-top: none;
  border-radius: 0 0 6px 6px;
  padding: 0.4rem 1.1rem;
  display: block;
}

/* ---------- tables ---------- */

.table-container {
  margin: 1.2rem 0;
  overflow-x: auto;
}

.table th {
  background: #f3f5f8;
  color: var(--ink);
  font-size: 0.86rem;
  letter-spacing: 0.015em;
}

.table td {
  font-size: 0.89rem;
  vertical-align: middle;
}

.table code {
  font-size: 0.86em;
  background: transparent;
  color: var(--accent-dk);
  padding: 0;
}

.table-title {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 0.4rem;
}

.table-title strong {
  color: var(--ink);
}

/* Bulma's `.table td` (0,1,1) outranks a bare `.state-*` class (0,1,0),
   so these must be qualified to take effect inside tables. */
.state-high, .table td.state-high { color: #1f7a4d; font-weight: 600; }
.state-low,  .table td.state-low  { color: #a2452f; font-weight: 600; }

/* ---------- callouts ---------- */

.notification.is-light.limitations {
  background: var(--warn-bg);
  border-left: 3px solid var(--warn-rule);
  border-radius: 6px;
  font-size: 0.91rem;
  padding: 1.05rem 1.25rem;
  margin-top: 1.4rem;
}

.notification.is-light.limitations p:first-child {
  margin-bottom: 0.45rem;
}

.notification.is-light.note {
  background: var(--accent-bg);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  font-size: 0.91rem;
  padding: 1.05rem 1.25rem;
}

/* ---------- tech stack ---------- */

.tech-stack-row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--rule);
  flex-wrap: wrap;
}

.tech-stack-row:last-child { border-bottom: none; }

.tech-stack-label {
  flex: 0 0 11rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.tech-stack-row .tags { margin-bottom: 0; }

.tech-stack-row .tag {
  background: var(--accent-bg);
  color: var(--accent-dk);
  font-size: 0.83rem;
  font-weight: 500;
}

/* ---------- team ---------- */

.team-list { margin-top: 0.8rem; }

.team-row {
  display: flex;
  align-items: baseline;
  gap: 1.2rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--rule);
  flex-wrap: wrap;
}

.team-row:last-child { border-bottom: none; }

.team-name {
  flex: 0 0 14rem;
  font-weight: 600;
  color: var(--ink);
}

.team-name a { color: var(--accent); }
.team-name a:hover { color: var(--accent-dk); }

/* Share the row so a long role sits beside the name instead of wrapping
   below it, which would make rows inconsistent with each other. */
.team-role {
  flex: 1 1 18rem;
  min-width: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

/* ---------- resources + footer ---------- */

.resource-list ul { margin-left: 1.1rem; }
.resource-list li { margin-bottom: 0.45rem; }

.content a { color: var(--accent); }
.content a:hover { color: var(--accent-dk); text-decoration: underline; }

.site-footer a { color: var(--accent); }
.site-footer a:hover { text-decoration: underline; }

.site-footer {
  border-top: 1px solid var(--rule);
  padding: 2rem 1.5rem 2.6rem;
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.85rem;
  line-height: 1.7;
}

/* ---------- responsive ---------- */

@media screen and (max-width: 768px) {
  .publication-title { font-size: 1.85rem !important; }
  .publication-logos img { height: 36px; }
  .publication-authors .author-block { display: block; white-space: normal; }
  .tech-stack-label, .team-name { flex-basis: 100%; }
  .section { padding-left: 1.1rem; padding-right: 1.1rem; }
  .equation-block .eq { white-space: normal; }
}

/* This page is intentionally light-only, matching the reference project
   page. `color-scheme: light` (set on :root above) stops the browser from
   auto-darkening form controls and scrollbars for dark-mode viewers. */