/*
SPDX-FileCopyrightText: Copyright © 2026 Idiap Research Institute <contact@idiap.ch>
SPDX-FileContributor: William Droz <william.droz@idiap.ch>
SPDX-License-Identifier: GPL-3.0-only
*/

@import url("https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700&family=Geist+Mono:wght@400;500&display=swap");

:root {
  --sci-bg: #f7f8fb;
  --sci-bg-deep: #eff4ff;
  --sci-ink: #212121;
  --sci-ink-soft: #5a5a5a;
  --sci-accent: #125cf7;
  --sci-accent-bright: #00aeff;
  --sci-accent-hot: #608dfa;
  --sci-accent-glow: rgba(18, 92, 247, 0.28);
  --sci-line: rgba(18, 92, 247, 0.35);
  --sci-grid: rgba(18, 92, 247, 0.1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body.hub {
  margin: 0;
  color: var(--sci-ink);
  font-family: Geist, "Segoe UI", sans-serif;
  background:
    radial-gradient(ellipse 80% 55% at 8% 0%, rgba(0, 174, 255, 0.18), transparent 52%),
    radial-gradient(ellipse 65% 45% at 100% 100%, rgba(96, 141, 250, 0.14), transparent 48%),
    radial-gradient(circle at 70% 20%, rgba(18, 92, 247, 0.06), transparent 35%),
    linear-gradient(165deg, #ffffff 0%, var(--sci-bg) 42%, var(--sci-bg-deep) 100%);
}

.hub-scan {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--sci-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--sci-grid) 1px, transparent 1px),
    linear-gradient(
      180deg,
      transparent 0%,
      rgba(255, 255, 255, 0.22) 48%,
      transparent 52%,
      transparent 100%
    );
  background-size: 56px 56px, 56px 56px, 100% 240%;
  animation: hub-scan 16s linear infinite;
}

@keyframes hub-scan {
  0% {
    background-position: 0 0, 0 0, 0 0%;
  }
  100% {
    background-position: 0 0, 0 0, 0 100%;
  }
}

.hub-brand,
.hub-stage,
.hub-foot {
  position: relative;
  z-index: 1;
}

.hub-brand {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 18px 22px 0;
}

.hub-brand--right {
  justify-content: flex-end;
}

.hub-logo {
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.95));
}

.hub-logo--idiap {
  width: 168px;
  height: 64px;
}

.hub-logo--hesso {
  width: 190px;
  height: 78px;
}

.hub-stage {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 170px);
  padding: 1.25rem 1.5rem 2rem;
}

.hub-slide {
  width: min(1680px, 100%);
  padding: clamp(1.6rem, 3.4vw, 3.2rem) clamp(1.4rem, 3.2vw, 3.4rem) clamp(1.4rem, 2.8vw, 2.6rem);
  background-image:
    linear-gradient(var(--sci-accent-bright), var(--sci-accent-bright)),
    linear-gradient(var(--sci-accent-bright), var(--sci-accent-bright)),
    linear-gradient(var(--sci-accent-hot), var(--sci-accent-hot)),
    linear-gradient(var(--sci-accent-hot), var(--sci-accent-hot)),
    linear-gradient(var(--sci-accent), var(--sci-accent)),
    linear-gradient(var(--sci-accent), var(--sci-accent)),
    linear-gradient(var(--sci-accent-bright), var(--sci-accent-bright)),
    linear-gradient(var(--sci-accent-bright), var(--sci-accent-bright));
  background-size:
    36px 2px, 2px 36px,
    36px 2px, 2px 36px,
    36px 2px, 2px 36px,
    36px 2px, 2px 36px;
  background-position:
    left 0.45em top 0.45em, left 0.45em top 0.45em,
    right 0.45em top 0.45em, right 0.45em top 0.45em,
    left 0.45em bottom 0.45em, left 0.45em bottom 0.45em,
    right 0.45em bottom 0.45em, right 0.45em bottom 0.45em;
  background-repeat: no-repeat;
}

.hub-eyebrow {
  margin: 0 0 0.55rem;
  color: var(--sci-accent);
  font-family: "Geist Mono", ui-monospace, monospace;
  font-size: clamp(0.78rem, 1.05vw, 1.05rem);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hub-slide h1 {
  margin: 0;
  color: var(--sci-ink);
  font-size: clamp(2.2rem, 5.4vw, 4.6rem);
  font-weight: 700;
  letter-spacing: 0.045em;
  line-height: 1.05;
  text-shadow: 0 0 28px rgba(0, 174, 255, 0.2);
}

.hub-slide h1::before {
  content: "//";
  margin-right: 0.35em;
  color: var(--sci-accent-bright);
  font-weight: 500;
  text-shadow: 0 0 12px var(--sci-accent-glow);
}

.hub-subtitle {
  margin: 0.7rem 0 0;
  color: var(--sci-accent);
  font-size: clamp(0.95rem, 1.7vw, 1.45rem);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-shadow: 0 0 18px var(--sci-accent-glow);
}

.hub-release-status {
  margin: 1rem 0 0;
  color: var(--sci-ink-soft);
  font-size: 0.95rem;
  line-height: 1.5;
}

.hub-kicker {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 1.6rem 0 1.05rem;
  color: var(--sci-ink-soft);
  font-size: clamp(0.95rem, 1.35vw, 1.2rem);
  font-weight: 500;
  letter-spacing: 0.09em;
}

.hub-kicker::before {
  content: "";
  width: 0.5em;
  height: 0.5em;
  border: 2px solid var(--sci-accent);
  transform: rotate(45deg);
  box-shadow: 0 0 12px var(--sci-accent-glow);
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(0.9rem, 2vw, 1.6rem);
}

.hub-weeks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 0 0 2.5rem;
  padding: 0;
  list-style: none;
}

.hub-week {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--sci-line);
  border-top: 3px solid var(--sci-accent);
  border-radius: 0.35rem;
}

.hub-week-link {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.1rem 1.2rem 0.75rem;
  color: inherit;
  text-decoration: none;
}

.hub-week-title {
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.3;
}

.hub-week-cta {
  margin-top: auto;
  color: var(--sci-accent);
  font-size: 0.9rem;
}

.hub-week-print {
  align-self: flex-start;
  margin: 0 1.2rem 1rem;
  color: var(--sci-ink-soft);
  font-size: 0.8rem;
}

a.hub-week-link:hover .hub-week-title,
.hub-week-print:hover {
  color: var(--sci-accent);
}

.hub-week-link:focus-visible,
.hub-week-print:focus-visible {
  outline: 3px solid var(--sci-accent-bright);
  outline-offset: 3px;
}

.hub-grid--single {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.hub-card--course {
  min-height: 18rem;
}

.hub-deck {
  min-width: 0;
}

.hub-card {
  display: flex;
  flex-direction: column;
  min-height: 20.5rem;
  padding: 1.35rem 1.45rem 1.2rem;
  color: inherit;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(18, 92, 247, 0.28);
  border-top: 4px solid var(--sci-accent-hot);
  border-radius: 0.35rem;
  box-shadow: 0 12px 32px rgba(33, 33, 33, 0.07);
  backdrop-filter: blur(8px);
  transition:
    transform 0.22s ease,
    border-color 0.22s ease,
    box-shadow 0.22s ease;
}

.hub-deck--primary .hub-card {
  border-top-color: var(--sci-accent);
}

a.hub-card:hover,
a.hub-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--sci-accent-bright);
  box-shadow:
    0 0 0 4px rgba(0, 174, 255, 0.1),
    0 18px 40px rgba(18, 92, 247, 0.16);
}

.hub-card:focus-visible {
  outline: 3px solid var(--sci-accent-bright);
  outline-offset: 4px;
}

.hub-card-kicker {
  color: var(--sci-accent);
  font-family: "Geist Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
}

.hub-card h2 {
  margin: 0.45rem 0 0.2rem;
  font-size: clamp(1.55rem, 2.4vw, 2.15rem);
  letter-spacing: 0.03em;
}

.hub-card-tag {
  margin: 0 0 0.85rem;
  color: var(--sci-ink-soft);
  font-family: "Geist Mono", ui-monospace, monospace;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.hub-card-lead {
  margin: 0 0 0.85rem;
  color: var(--sci-ink);
  font-size: 1.08rem;
  line-height: 1.35;
}

.hub-diff-label {
  margin: 0 0 0.35rem;
  color: var(--sci-accent);
  font-family: "Geist Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hub-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.hub-card li {
  margin: 0.28rem 0;
  color: var(--sci-ink-soft);
  line-height: 1.35;
}

.hub-card li::before {
  content: "▹ ";
  color: var(--sci-accent-bright);
}

.hub-card li.hub-drop::before {
  content: "- ";
  font-weight: 700;
  color: #c0392b;
}

.hub-card li.hub-add::before {
  content: "+ ";
  font-weight: 700;
  color: var(--sci-accent);
}

.hub-card li.hub-keep::before {
  content: "▹ ";
  color: var(--sci-accent-bright);
}

.hub-card-cta {
  margin-top: auto;
  padding-top: 1.15rem;
  color: var(--sci-accent);
  font-weight: 600;
  letter-spacing: 0.04em;
}

a.hub-card:hover .hub-card-cta,
a.hub-card:focus-visible .hub-card-cta {
  color: #1147d4;
  text-shadow: 0 0 12px var(--sci-accent-glow);
}

.hub-week--unreleased,
.hub-deck--primary .hub-card--unreleased {
  background: rgba(244, 245, 247, 0.92);
  border-color: #b5bcc7;
  box-shadow: none;
}

.hub-week--unreleased .hub-week-link {
  padding-bottom: 1.1rem;
}

.hub-week--unreleased .hub-card-kicker,
.hub-week--unreleased .hub-week-cta,
.hub-card--unreleased .hub-card-kicker,
.hub-card--unreleased .hub-card-cta,
.hub-card--unreleased li::before {
  color: var(--sci-ink-soft);
}

.hub-alt {
  display: flex;
  gap: 1.1rem;
  margin: 0.7rem 0 0 0.15rem;
  font-family: "Geist Mono", ui-monospace, monospace;
  font-size: 0.82rem;
}

.hub-alt a {
  color: var(--sci-accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(18, 92, 247, 0.4);
}

.hub-alt a:hover,
.hub-alt a:focus-visible {
  color: #1147d4;
  border-bottom-color: var(--sci-accent-bright);
}

.hub-foot {
  padding: 0 1.5rem 1.3rem;
  color: var(--sci-ink-soft);
  font-family: "Geist Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  text-align: center;
}

.hub-foot p {
  margin: 0;
}

@media (max-width: 1100px) {
  .hub-brand {
    padding: 14px 16px 0;
  }

  .hub-logo--idiap {
    width: 126px;
    height: 48px;
  }

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

  .hub-weeks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hub-card {
    min-height: 0;
  }
}

@media (max-width: 640px) {
  .hub-weeks {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hub-scan,
  .hub-card {
    animation: none;
    transition: none;
  }
}