/* Daylight adaptation of TIDES by Chathura Jayasanka.
   Reference: https://codepen.io/Chathura-Jayasanka/pen/emBMYWJ */
.day-ocean {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  user-select: none;
  contain: strict;
  background: linear-gradient(#a4c8df 0%, #f0e6c9 41%, #a0cbd1 44%, #80aebc 100%);
}
.day-ocean canvas { display: block; width: 100%; height: 100%; }
.day-ocean::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(246, 252, 251, .38);
}
html[data-theme="dark"] .day-ocean { display: none; }
html:not([data-theme="dark"]):has(.day-ocean) {
  --bg: #e9f2f1;
  --surface: rgba(255, 255, 255, .92);
  --ink: #243f44;
  --muted: #607b80;
  --line: rgba(143, 175, 181, .34);
  --shadow: 0 5px 24px rgba(34, 75, 87, .06);
}
html:not([data-theme="dark"]):has(.day-ocean) .sidebar { background: rgba(249, 253, 252, .97); }
html:not([data-theme="dark"]):has(.day-ocean) .topbar { background: rgba(251, 254, 253, .9); }
html:not([data-theme="dark"]):has(.day-ocean) .hero {
  background: linear-gradient(110deg, rgba(244, 251, 245, .84), rgba(248, 252, 245, .4));
  border-color: rgba(224, 240, 229, .85);
}
html:not([data-theme="dark"]):has(.day-ocean) .hero p { color: #526f71; }
html:not([data-theme="dark"]):has(.day-ocean) .hero-meta { color: #536f6f; }
html:not([data-theme="dark"]):has(.day-ocean) .notice { background: rgba(252, 252, 242, .94); }
html:not([data-theme="dark"]):has(.day-ocean) .search-hints,
html:not([data-theme="dark"]):has(.day-ocean) .search-hints button,
html:not([data-theme="dark"]):has(.day-ocean) .section-head p,
html:not([data-theme="dark"]):has(.day-ocean) .filter-tabs button,
html:not([data-theme="dark"]):has(.day-ocean) .pagination,
html:not([data-theme="dark"]):has(.day-ocean) footer,
html:not([data-theme="dark"]):has(.day-ocean) .footer-qr figcaption { color: #3f6169; }
html:not([data-theme="dark"]):has(.day-ocean) .section-head h2 span { background: rgba(255,255,255,.75); }
html:not([data-theme="dark"]):has(.day-ocean) .filter-tabs button.selected { background: rgba(234,244,239,.95); color: var(--green); }
@media (max-width: 700px) {
  .day-ocean::after { background: rgba(246, 252, 251, .44); }
}

/* Keep the time control within reach while browsing the resource collection. */
:root { --site-header-height: 78px; --site-sidebar-width: 244px; }
body:has(.day-ocean) > .page { padding-top: var(--site-header-height); }
body:has(.day-ocean) .topbar {
  position: fixed; top: 0; left: var(--site-sidebar-width); right: 0;
  height: var(--site-header-height); z-index: 15; gap: 24px;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 3px 18px rgba(20, 52, 62, .05);
}
body:has(.day-ocean) .resources-section { scroll-margin-top: calc(var(--site-header-height) + 20px); }
.ocean-controls { width: 280px; min-width: 210px; margin-left: auto; flex-shrink: 0; }
.ocean-controls__label { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: #527078; }
.ocean-controls__label label { font-weight: 600; letter-spacing: 1px; }
.ocean-controls__label output { font-variant-numeric: tabular-nums; }
.ocean-controls__track { display: flex; align-items: center; gap: 10px; font-size: 10px; color: #607b80; }
.ocean-controls__track span { flex-shrink: 0; }
#ocean-time { appearance: none; -webkit-appearance: none; flex: 1; min-width: 0; width: 100%; height: 28px; margin: 0; cursor: pointer; background: transparent; }
#ocean-time::-webkit-slider-runnable-track { height: 5px; border-radius: 10px; background: linear-gradient(90deg,#3a4a8a,#6fa8d4 25%,#ffd27f 55%,#ff7e54 78%,#1a2244); }
#ocean-time::-moz-range-track { height: 5px; border-radius: 10px; background: linear-gradient(90deg,#3a4a8a,#6fa8d4 25%,#ffd27f 55%,#ff7e54 78%,#1a2244); }
#ocean-time::-webkit-slider-thumb { appearance: none; -webkit-appearance: none; width: 17px; height: 17px; margin-top: -6px; border-radius: 50%; border: 2px solid #fff; background: #fff; box-shadow: 0 1px 5px #31556666, inset 0 0 0 1px #d8e3e4; }
#ocean-time::-moz-range-thumb { width: 13px; height: 13px; border-radius: 50%; border: 2px solid #fff; background: #fff; box-shadow: 0 1px 5px #31556666; }
#ocean-time:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 6px; }
body:has(.day-ocean) .header-note { display: none; }
html[data-theme="dark"] .ocean-controls { display: none; }
@media (max-width: 1190px) { :root { --site-sidebar-width: 214px; } }
@media (max-width: 1000px) {
  :root { --site-header-height: 118px; }
  html[data-theme="dark"] { --site-header-height: 78px; }
  body:has(.day-ocean) .topbar { display: grid; grid-template-columns: 1fr auto; grid-template-rows: 48px 54px; gap: 0 16px; padding-top: 8px; padding-bottom: 8px; }
  body:has(.day-ocean) .header-actions { grid-column: 2; grid-row: 1; }
  .ocean-controls { grid-row: 2; grid-column: 1 / -1; width: 100%; min-width: 0; margin: 0; }
  html[data-theme="dark"] body:has(.day-ocean) .topbar { grid-template-rows: 1fr; }
}
@media (max-width: 700px) {
  :root { --site-sidebar-width: 0px; --site-header-height: 110px; }
  html[data-theme="dark"] { --site-header-height: 62px; }
  body:has(.day-ocean) .topbar { grid-template-columns: auto 1fr auto; grid-template-rows: 40px 54px; gap: 0 10px; }
  body:has(.day-ocean) .header-actions { grid-column: 3; }
  .ocean-controls__label { font-size: 10px; }
}