/* =========================================================
   project.css — design language for project pages.
   Layered on top of base.css. Activated by `body.project-page`.
   Pages: sugar, frosting, matcha, MACARONS, milo.
   ========================================================= */

/* ---------- Tokens (extend base.css) ---------- */
:root {
  --bg-color: #0a0a0a;
  --bg-rgb: 10, 10, 10;
  --surface-1: rgba(255, 255, 255, 0.02);
  --surface-2: rgba(94, 224, 214, 0.06);
  --hairline: rgba(94, 224, 214, 0.15);
  --hairline-strong: rgba(94, 224, 214, 0.35);
  --accent-rgb: 94, 224, 214;
  --accent-soft: rgba(94, 224, 214, 0.12);
  --shadow-glow: 0 10px 40px -10px rgba(94, 224, 214, 0.25);
  --ease-out: cubic-bezier(.2, .8, .2, 1);
}

[data-theme="dark"] {
  --bg-color: #0a0a0a;
  --bg-rgb: 10, 10, 10;
}

[data-theme="light"] {
  --bg-color: #FFFFFF;
  --bg-rgb: 255, 255, 255;
  --surface-1: rgba(0, 0, 0, 0.02);
  --surface-2: rgba(68, 141, 135, 0.06);
  --hairline: rgba(68, 141, 135, 0.18);
  --hairline-strong: rgba(68, 141, 135, 0.45);
  --accent-rgb: 68, 141, 135;
  --accent-soft: rgba(68, 141, 135, 0.12);
  --shadow-glow: 0 10px 40px -10px rgba(68, 141, 135, 0.25);
}

body.project-page {
  font-size: 18px;
  line-height: 1.55;
}

::selection {
  background: var(--accent-soft);
  color: var(--link-color);
}

/* ---------- Typography polish ---------- */
.project-page h1 {
  font-family: 'Roboto', sans-serif;
  font-weight: 100;
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.project-page h1.secondary {
  font-weight: 100;
  letter-spacing: 0.04em;
  color: var(--link-color);
  margin-top: 0.6rem;
}

.project-page h2 {
  font-family: 'Roboto', sans-serif;
  font-weight: 100;
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.01em;
  margin-top: 2.5rem;
  margin-bottom: 0.5rem;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.project-page h2.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Inline emphasis letters in section titles (e.g. "Su", "Ga", "R" in SuGaR's
   section heading) — keep them Roboto thin like the rest of the title, but
   recolor to the bright accent green. The inline style="color:#448D87" on
   these <b> tags is overridden with !important. */
.project-page h2 b,
.project-page h2 strong {
  font-weight: 100 !important;
  color: var(--link-color) !important;
}

.project-page h4 {
  font-weight: 300;
}

.project-page p { line-height: 1.7; }

/* ---------- Author block / hero ---------- */
.project-page > .container:first-of-type {
  position: relative;
  isolation: isolate;
}
.project-page > .container:first-of-type::before {
  /* subtle accent glow behind the title */
  content: "";
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: min(820px, 90vw);
  height: 360px;
  background: radial-gradient(closest-side, var(--accent-soft), transparent 75%);
  filter: blur(20px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.85;
}

.project-page > .container:first-of-type > .row {
  opacity: 0;
  transform: translateY(14px);
  animation: projFadeUp 800ms var(--ease-out) 100ms forwards;
}
.project-page > .container:first-of-type > .row:nth-child(2) {
  animation-delay: 250ms;
}

@keyframes projFadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* Author links: keep them readable, accent green */
.project-page h4 a,
.project-page nobr a {
  color: var(--link-color);
  position: relative;
  background-image: linear-gradient(var(--link-color), var(--link-color));
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 0% 1px;
  padding-bottom: 1px;
  transition: background-size 350ms var(--ease-out);
}
.project-page h4 a:hover,
.project-page nobr a:hover {
  background-size: 100% 1px;
}

/* ---------- Section rule (animated gradient hr) ---------- */
.project-page hr {
  border: 0;
  height: 1px;
  background: linear-gradient(
    to right,
    var(--link-color) 0%,
    rgba(var(--accent-rgb), 0.6) 30%,
    rgba(var(--accent-rgb), 0.2) 70%,
    transparent 100%
  );
  margin: 0.5rem 0 1.6rem;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 900ms var(--ease-out);
  opacity: 1;
}
.project-page hr.is-visible {
  transform: scaleX(1);
}

/* ---------- Action buttons (.label-info pills, mirror homepage .pub-actions) ---------- */
.project-page .label.label-info,
.project-page a.label-info,
.project-page button.label-info {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  margin: 4px 3px;
  border-radius: 999px;
  border: 1px solid var(--hairline);
  background: transparent;
  color: var(--text-color);
  font-family: 'Roboto', sans-serif;
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: none;
  line-height: 1.4;
  white-space: nowrap;
  vertical-align: middle;
  transition:
    color 250ms var(--ease-out),
    background 250ms var(--ease-out),
    border-color 250ms var(--ease-out),
    transform 250ms var(--ease-out),
    box-shadow 250ms var(--ease-out);
}
.project-page .label.label-info:hover,
.project-page .label.label-info:focus,
.project-page a.label-info:hover,
.project-page a.label-info:focus,
.project-page button.label-info:hover,
.project-page button.label-info:focus {
  color: var(--bg-color);
  background: var(--link-color);
  border-color: var(--link-color);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px -8px rgba(var(--accent-rgb), 0.6);
  outline: none;
  text-decoration: none;
}
/* Strip inline icon overrides that pages set (margin-top, vertical-align top, fa-lg). */
.project-page .label.label-info i,
.project-page a.label-info i,
.project-page button.label-info i {
  font-size: 13px !important;
  line-height: 1 !important;
  margin: 0 !important;
  padding: 0 !important;
  vertical-align: middle !important;
}

/* Action button row container — used on project pages (h3) and homepage (.pub-actions) */
.project-page .action-buttons,
.project-page .container > .row > .col-xs-12 > h3:has(.label.label-info),
.project-page h3:has(.label.label-info) {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-size: 0; /* collapse text-node spaces & nbsp gaps between buttons */
  text-align: center;
  font-weight: 400;
}

/* ---------- Highlighted subheader chip (.highlight) ---------- */
.project-page .highlight {
  display: inline-block;
  background: var(--accent-soft) !important;
  color: var(--link-color) !important;
  border: 1px solid var(--hairline) !important;
  border-radius: 10px;
  padding: 0.35em 1em !important;
  font-weight: 400;
  letter-spacing: 0.02em;
}
/* Force the chip onto its own line, centered, sitting above the figure
   below it instead of flowing inline next to the image. */
.project-page h4.highlight {
  display: block;
  width: fit-content;
  margin: 0 auto 1rem;
  font-size: 15px;
  text-align: center;
}
.project-page h4.highlight b {
  font-weight: 400;
}

/* Body paragraphs inside section rows: parent <div class="row" style="text-align:center">
   makes its descendants inherit center alignment, which centers flowing prose.
   We left-align prose, but explicit figure captions with inline text-align
   (e.g. <p style="text-align:center">(a) Scene 1: Bicycle</p>) keep their
   inline alignment because inline styles always win over author CSS. */
.project-page .row [class*="col-"] p:not([style*="text-align"]) {
  text-align: left;
}

/* ---------- Updates list ---------- */
.project-page ul,
.project-page ol {
  padding-left: 1.4rem;
}
.project-page ul li,
.project-page ol li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}
.project-page ul li::marker {
  color: var(--link-color);
}

/* ---------- BibTeX / pre blocks ---------- */
.project-page pre {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 1rem 1.2rem;
  font-family: 'SF Mono', Menlo, Monaco, 'Courier New', monospace;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text-color);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}
[data-theme="light"] .project-page pre {
  background: rgba(0, 0, 0, 0.04);
}
.project-page .card,
.project-page .card-block {
  background: transparent;
  border: 0;
  padding: 0;
}
.project-page .card-text { margin: 0; }

/* ---------- Content links (subtle animated underline) ---------- */
.project-page p a:not(.label-info),
.project-page li a:not(.label-info),
.project-page td a:not(.label-info) {
  color: var(--link-color);
  position: relative;
  background-image: linear-gradient(var(--link-color), var(--link-color));
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 0% 1px;
  padding-bottom: 1px;
  transition: background-size 350ms var(--ease-out), color 200ms ease;
}
.project-page p a:not(.label-info):hover,
.project-page li a:not(.label-info):hover,
.project-page td a:not(.label-info):hover {
  background-size: 100% 1px;
  color: var(--link-hover-color);
}

/* ---------- Images: subtle lift on hover ---------- */
.project-page .container img,
.project-page .row img {
  transition: transform 500ms var(--ease-out), filter 500ms var(--ease-out);
  will-change: transform;
}
.project-page a:hover > img {
  transform: translateY(-2px);
  filter: drop-shadow(0 12px 30px rgba(var(--accent-rgb), 0.18));
}

/* ---------- News timeline (mirror of homepage News section) ---------- */
.project-page .news-timeline {
  position: relative;
  padding-left: 2.4rem;
  margin: 0 0 1rem;
}
.project-page .news-timeline::before {
  content: "";
  position: absolute;
  left: 0.55rem;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 1px;
  background: linear-gradient(
    to bottom,
    transparent,
    var(--hairline-strong) 8%,
    var(--hairline-strong) 92%,
    transparent
  );
}
.project-page .news-item {
  position: relative;
  padding: 0.6rem 0;
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 1.2rem;
  align-items: baseline;
  font-size: 16px;
  line-height: 1.55;
}
.project-page .news-item::before {
  content: "";
  position: absolute;
  left: -2.04rem;
  top: 1.05rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg-color);
  border: 1.5px solid var(--link-color);
  box-shadow:
    0 0 0 4px var(--bg-color),
    0 0 12px rgba(var(--accent-rgb), 0.5);
  transition: all 300ms var(--ease-out);
}
.project-page .news-item:hover::before {
  background: var(--link-color);
  box-shadow:
    0 0 0 4px var(--bg-color),
    0 0 20px rgba(var(--accent-rgb), 0.85);
}
.project-page .news-item .news-date {
  font-family: 'Roboto', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--link-color);
  text-transform: uppercase;
  white-space: nowrap;
}
.project-page .news-item .news-body {
  color: var(--text-color);
}

@media (max-width: 600px) {
  .project-page .news-item {
    grid-template-columns: 1fr;
    gap: 0.2rem;
    padding-left: 0.2rem;
  }
}

/* Legacy .label.date inline pill (kept tiny, in case any pages still use it). */
.project-page p.label.date,
.project-page .label.date {
  display: inline-block;
  padding: 3px 10px;
  margin-right: 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--link-color);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  vertical-align: baseline;
  border: 1px solid var(--hairline);
}

/* ---------- Section reveal ---------- */
.project-page .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.project-page .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Footer ---------- */
.project-page > .container:last-of-type {
  border-top: 1px solid var(--hairline);
  margin-top: 4rem;
  padding-top: 2rem !important;
  font-size: 13px;
  color: var(--subdued-text-color);
}

/* ---------- MILo carousel hero — gentle polish only ---------- */
.project-page .carousel-text-container h3 {
  letter-spacing: 0.02em;
  font-weight: 200 !important;
}
.project-page .carousel-scroll-indicator p {
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 12px !important;
  font-weight: 300 !important;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .project-page h2,
  .project-page hr,
  .project-page .reveal,
  .project-page > .container:first-of-type > .row {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
  }
}