/* ======================================================================
 * NSF NCAR / RAL — Unified brand theme for reveal.js
 * Ported from NCAR/ral-revealjs-slide-template. Applied OVER the built-in
 * "black" theme. Dark/light switching via data-theme="dark|light" on <html>.
 * Press T during presentation to toggle.
 * ====================================================================== */

/* 1. Brand palette */
:root {
  --ncar-blue: #0057c2;
  --ncar-dark-blue: #00357a;
  --ncar-space: #011837;
  --ncar-light-blue: #42c0ff;
  --ncar-light-gray: #f1f0ee;
  --ncar-white: #ffffff;
  --ncar-orange: #faa119;
  --ncar-yellow: #ffdd31;
  --font-display: "Poppins", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

/* 2a. Dark theme (default) */
:root,
[data-theme="dark"] {
  --bg-viewport: var(--ncar-space);
  --bg-section: var(--ncar-dark-blue);
  --text-primary: var(--ncar-light-gray);
  --text-h3h4: var(--ncar-light-blue);
  --text-link: var(--ncar-light-blue);
  --text-accent: var(--ncar-orange);
  --cover-eyebrow: var(--ncar-light-blue);
  --table-header: var(--ncar-light-blue);
  --table-stripe: var(--ncar-light-gray);
  --text-contrast: var(--ncar-space);
  --logo-color-display: none;
  --logo-white-display: block;
  --wave-bg: url("assets/waves/wide-fills-d-color.svg");
  --statement-lead: var(--ncar-light-blue);
  --statement-body: var(--ncar-white);
  --box-bg: rgba(0, 87, 194, 0.25);
  --box-border: rgba(66, 192, 255, 0.35);
  --card-bg: rgba(1, 24, 55, 0.82);
  --card-border: rgba(66, 192, 255, 0.35);
  --fragment-note-bg: rgba(66, 192, 255, 0.15);
  --shadow-code: rgba(0, 0, 0, 0.45);
}

/* 2b. Light theme */
[data-theme="light"] {
  --bg-viewport: var(--ncar-light-gray);
  --bg-section: var(--ncar-white);
  --text-primary: var(--ncar-dark-blue);
  --text-h3h4: var(--ncar-blue);
  --text-link: var(--ncar-blue);
  --text-accent: var(--ncar-orange);
  --cover-eyebrow: var(--ncar-blue);
  --table-header: var(--ncar-blue);
  --table-stripe: var(--ncar-dark-blue);
  --text-contrast: var(--ncar-light-gray);
  --logo-color-display: block;
  --logo-white-display: none;
  --wave-bg: url("assets/waves/wide-fills-a-white.svg");
  --statement-lead: var(--ncar-blue);
  --statement-body: var(--ncar-dark-blue);
  --box-bg: rgba(0, 87, 194, 0.08);
  --box-border: rgba(0, 87, 194, 0.2);
  --card-bg: rgba(255, 255, 255, 0.92);
  --card-border: rgba(0, 87, 194, 0.2);
  --fragment-note-bg: rgba(0, 87, 194, 0.1);
  --shadow-code: rgba(0, 0, 0, 0.12);
}

/* 3. Utils */
.h-separator {
  margin: 36px 0 36px 0;
  width: 128px;
  border-bottom: 4px solid var(--cover-eyebrow);
}
.v-separator {
  margin: 0 24px 0 20px;
  border-left: 4px solid var(--cover-eyebrow);
}

/* 4. Reveal base overrides */
.reveal { font-family: var(--font-display); color: var(--text-primary); }
.reveal .slides { text-align: left; }
.reveal .slides section { box-sizing: border-box; height: 100%; }
.reveal-viewport, .reveal { background: var(--bg-viewport); }
.reveal h1, .reveal h2, .reveal h3, .reveal h4 {
  font-family: var(--font-display);
  color: var(--text-primary);
  text-transform: none;
  font-weight: 700;
}
.reveal h3, .reveal h4 { color: var(--text-h3h4); }
.reveal a { color: var(--text-link); }
.reveal ul li::marker { color: var(--ncar-orange); }
.reveal .slide-number {
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-display);
  position: absolute;
  left: 24px;
  bottom: 24px;
  text-transform: uppercase;
}
.opt-footer-name {
  margin-left: 32px;
  padding-left: 32px;
  border-left: 4px solid var(--text-primary);
}

/* 5. Brand furniture */
.brand-bar img { height: 200px; width: auto; }

.slide-title-bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 40px;
  z-index: 5;
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: 3px solid var(--text-primary);
}
.slide-title-bar h2 { flex: 1; min-width: 0; margin-bottom: 0; }
.slide-title-bar img { height: 67px; width: auto; flex-shrink: 0; }

.slide-title-bar--statement {
  border-bottom: none;
  padding-bottom: 0;
  justify-content: flex-end;
}
.slide-title-bar--statement h2 { display: none; }
.slide-title-bar--statement img { height: 88px; }

.brand-bar .logo-color, .slide-title-bar .logo-color { display: var(--logo-color-display); }
.brand-bar .logo-white, .slide-title-bar .logo-white { display: var(--logo-white-display); }

@media (max-width: 750px) {
  .slide-title-bar { flex-direction: column-reverse; align-items: flex-start; gap: 16px; }
}

/* 6. Cover slides */
.slide-cover { overflow: hidden; }
.slide-cover .eyebrow {
  color: var(--cover-eyebrow);
  padding-top: 72px;
  font-size: 27px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
}
.slide-cover .presenter-block { font-weight: 300; }
.slide-cover .presenter-block .name { font-weight: 700; }
.slide-cover .credit-team {
  margin-top: 28px;
  font-size: 20px;
  letter-spacing: 0.08em;
  font-weight: 100;
}
.slide-cover .credit-intro { text-transform: uppercase; }
.slide-footnote--pinned {
  opacity: 0.7;
  font-size: 17px;
  font-style: italic;
  font-weight: 100;
  position: absolute;
  padding-right: 150px;
  bottom: 2px;
  line-height: 1.4;
}

/* 7. Content slides */
.wave-bg {
  background-image: var(--wave-bg);
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
}
.slide-content h2 .accent { color: var(--text-accent); font-weight: 500; }
.slide-content .intro { font-size: 64px; font-weight: 700; padding-top: 72px; margin-bottom: 28px; }

.slide-content.two-col .body,
.slide-content.three-col .body,
.slide-content.four-col .body {
  padding-top: 72px;
  display: grid;
  gap: 40px;
}
.slide-content.two-col .body { grid-template-columns: 1fr 1fr; }
.slide-content.three-col .body { grid-template-columns: 1fr 1fr 1fr; }
.slide-content.four-col .body { grid-template-columns: 1fr 1fr 1fr 1fr; }

.slide-content .body p, .slide-content .body li { line-height: 1.45; }
.slide-content .body h3 {
  margin-bottom: 28px;
  border-left: 4px solid var(--ncar-orange);
  padding-left: 14px;
  font-weight: 700;
}

/* Stat boxes */
.stat-boxes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}
.stat-boxes .box {
  background: var(--box-bg);
  border: 1px solid var(--box-border);
  border-radius: 6px;
  padding: 14px 18px;
}
.stat-boxes .box .label {
  color: var(--text-accent);
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
  font-size: xx-large;
}
.stat-boxes .box .value { font-size: medium; }

/* Content + image */
.slide-content .with-image {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 36px;
  align-items: start;
}
.slide-content .with-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
}

.slide-content ul { margin: 0 0 0.4em 1.2em; }
.slide-content li { font-size: 40px; line-height: 1.35; margin-bottom: 4px; }

/* Table */
.slide-table table { margin-top: 72px; border: 2px solid var(--ncar-yellow); }
.slide-table thead {
  background-color: var(--table-header);
  color: var(--text-contrast);
  border-bottom: 1px solid var(--ncar-orange);
}
.slide-table th { padding-top: 88px; }
.slide-table tr:nth-child(even) {
  border-bottom: none;
  background-color: var(--table-stripe);
  color: var(--text-contrast);
}

/* 8. Bolder statement */
.slide-bolder-statement .statement-lead {
  font-family: var(--font-display);
  font-size: 96px;
  line-height: 1.1;
  font-weight: 700;
  margin-top: 172px;
  padding-left: 72px;
}

/* 9. Demo slides */
.reveal pre {
  width: 100%;
  box-shadow: 0 6px 40px var(--shadow-code);
  border-radius: 6px;
  margin: 24px 0;
}
.slide-code .caption {
  color: var(--text-accent);
  font-size: 36px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 16px;
}
.slide-fragments .fragment.highlight-ncar-cyan.visible { color: var(--text-accent); }
.slide-fragments .fragment-note {
  display: inline-block;
  margin-left: 12px;
  padding: 2px 10px;
  border-radius: 3px;
  background: var(--fragment-note-bg);
  color: var(--text-accent);
  font-family: "JetBrains Mono", Menlo, monospace;
}

.auto-animate-stack {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 40px;
}
.auto-animate-stack .chip {
  display: inline-block;
  padding: 14px 24px;
  background: var(--ncar-blue);
  color: var(--ncar-white);
  border-radius: 6px;
  font-size: 44px;
  font-weight: 500;
  align-self: flex-start;
}
.auto-animate-stack .chip.accent { background: var(--ncar-orange); color: var(--ncar-space); }
.auto-animate-stack .chip.light-blue { background: var(--ncar-light-blue); }
.auto-animate-stack .chip.dark-blue { background: var(--ncar-dark-blue); }
