:root {
  --navy: #17365d;
  --navy-dark: #0b2139;
  --blue: #2f75b5;
  --blue-light: #eaf4fb;
  --green: #4d9b45;
  --green-light: #e9f6e7;
  --gold: #f2b33d;
  --gold-light: #fff5d9;
  --purple: #6f42c1;
  --purple-light: #efe9fb;
  --red: #b93838;
  --red-light: #fdecec;
  --ink: #1f2937;
  --muted: #64748b;
  --line: #d9e1ea;
  --surface: #ffffff;
  --background: #f4f7fb;
  --shadow: 0 14px 36px rgba(23, 54, 93, .13);
  --radius: 20px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 92% 4%, rgba(47,117,181,.13), transparent 27rem),
    var(--background);
  line-height: 1.6;
}
a { color: inherit; }
button, input, select, textarea { font: inherit; }

.skip-link {
  position: fixed;
  top: -100px;
  left: 18px;
  z-index: 1000;
  background: var(--gold);
  color: var(--navy-dark);
  padding: 10px 14px;
  border-radius: 8px;
  font-weight: 800;
}
.skip-link:focus { top: 14px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 33, 57, .96);
  color: white;
  border-bottom: 1px solid rgba(255,255,255,.14);
  backdrop-filter: blur(12px);
}
.header-inner {
  max-width: var(--max);
  min-height: 76px;
  margin: auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: white;
  color: var(--navy);
  font-weight: 950;
  letter-spacing: -.04em;
}
.brand strong { display: block; font-size: 18px; }
.brand small { display: block; color: #cfe1f2; font-size: 12px; }

nav { display: flex; align-items: center; gap: 4px; }
nav a {
  text-decoration: none;
  color: #dce9f5;
  padding: 10px 11px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 700;
}
nav a:hover, nav a:focus-visible {
  background: rgba(255,255,255,.12);
  color: white;
}
.menu-button {
  display: none;
  border: 1px solid rgba(255,255,255,.28);
  background: transparent;
  color: white;
  border-radius: 9px;
  padding: 8px 12px;
  font-weight: 800;
}

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 72px 24px 42px;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, .65fr);
  gap: 34px;
  align-items: center;
}
.eyebrow {
  color: var(--blue);
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .13em;
}
.hero h1 {
  margin: 12px 0 18px;
  color: var(--navy-dark);
  font-size: clamp(44px, 7vw, 76px);
  line-height: .98;
  letter-spacing: -.055em;
}
.hero h1 span { color: var(--blue); }
.hero-copy {
  max-width: 760px;
  margin: 0;
  color: #45556b;
  font-size: 19px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin: 26px 0 18px;
}
.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 17px;
  border: 0;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 900;
  transition: transform .15s ease, box-shadow .15s ease;
}
.button:hover { transform: translateY(-1px); }
.button.primary {
  background: var(--gold);
  color: var(--navy-dark);
  box-shadow: 0 10px 24px rgba(242,179,61,.27);
}
.button.secondary {
  background: white;
  color: var(--navy);
  border: 1px solid var(--line);
}
.button.disabled {
  background: #dce3ea;
  color: #627083;
  cursor: default;
  box-shadow: none;
}
.button.disabled:hover { transform: none; }
.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 18px;
  color: var(--navy);
  font-size: 13px;
  font-weight: 800;
}
.hero-panel {
  border-radius: 26px;
  padding: 24px;
  color: white;
  background:
    linear-gradient(155deg, rgba(255,255,255,.08), transparent 48%),
    linear-gradient(140deg, var(--navy-dark), var(--navy));
  box-shadow: var(--shadow);
}
.panel-label {
  color: #a9cce9;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .15em;
}
.workflow-preview { display: grid; gap: 10px; margin-top: 14px; }
.workflow-preview > div {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 13px;
  background: rgba(255,255,255,.065);
}
.workflow-preview span {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  background: var(--gold);
  color: var(--navy-dark);
  border-radius: 11px;
  font-weight: 950;
}
.workflow-preview p { margin: 0; color: #dce9f5; font-size: 13px; }
.workflow-preview strong { display: block; color: white; font-size: 15px; }

.scope-banner {
  max-width: calc(var(--max) - 48px);
  margin: 0 auto 16px;
  padding: 18px 20px;
  display: flex;
  gap: 15px;
  align-items: flex-start;
  border: 2px solid var(--gold);
  border-left: 8px solid var(--red);
  border-radius: 16px;
  background: #fff9e8;
}
.scope-icon { font-size: 30px; line-height: 1; }
.scope-banner h2 {
  margin: 0 0 4px;
  color: #842e2e;
  font-size: 18px;
}
.scope-banner p { margin: 0; color: #5b4a13; }

.section {
  max-width: var(--max);
  margin: auto;
  padding: 70px 24px;
}
.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}
.section-heading h2,
.assistant-status h2 {
  margin: 8px 0 10px;
  color: var(--navy-dark);
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.08;
  letter-spacing: -.035em;
}
.section-heading p, .assistant-status p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.feature-card,
.category-grid article,
.deadline-card,
.video-card,
.source-grid > * {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 9px 24px rgba(23,54,93,.08);
}
.feature-card {
  border-radius: var(--radius);
  padding: 21px;
}
.feature-icon {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  font-size: 24px;
}
.feature-icon.blue { background: var(--blue-light); }
.feature-icon.green { background: var(--green-light); }
.feature-icon.gold { background: var(--gold-light); }
.feature-icon.purple { background: var(--purple-light); }
.feature-card h3,
.category-grid h3,
.video-card h3 {
  margin: 15px 0 7px;
  color: var(--navy);
}
.feature-card p,
.category-grid p,
.video-card p {
  margin: 0;
  color: var(--muted);
}

.deadlines-section {
  max-width: none;
  padding-left: max(24px, calc((100vw - var(--max)) / 2 + 24px));
  padding-right: max(24px, calc((100vw - var(--max)) / 2 + 24px));
  background: linear-gradient(180deg, #edf5fb, #f4f7fb);
  border-top: 1px solid #dce8f1;
  border-bottom: 1px solid #dce8f1;
}
.deadline-grid {
  max-width: calc(var(--max) - 48px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.deadline-card {
  min-height: 180px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 22px;
  border-radius: var(--radius);
}
.deadline-date {
  flex: 0 0 72px;
  overflow: hidden;
  border-radius: 14px;
  text-align: center;
  background: var(--navy);
  color: white;
}
.deadline-date span {
  display: block;
  padding: 5px;
  background: var(--gold);
  color: var(--navy-dark);
  font-size: 12px;
  font-weight: 950;
}
.deadline-date strong {
  display: block;
  padding: 8px 5px 10px;
  font-size: 30px;
  line-height: 1;
}
.deadline-card h3 { margin: 3px 0 7px; color: var(--navy); }
.deadline-card p { margin: 0; color: var(--muted); }
.deadline-warning {
  max-width: calc(var(--max) - 48px);
  margin-top: 18px;
  padding: 15px 18px;
  border-radius: 13px;
  background: var(--red-light);
  border-left: 6px solid var(--red);
  color: #6f2626;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}
.category-grid article {
  padding: 19px;
  border-radius: 17px;
}
.category-grid article > span { font-size: 29px; }
.category-grid h3 { margin-top: 9px; }

.assistant-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  padding-top: 34px;
  padding-bottom: 34px;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  color: white;
  box-shadow: var(--shadow);
}
.assistant-status h2 { color: white; font-size: 36px; }
.assistant-status p { max-width: 760px; color: #d5e5f5; }
.assistant-status .eyebrow { color: #9fcbed; }
.assistant-status .button { flex: 0 0 auto; }

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.video-card {
  display: grid;
  grid-template-columns: 115px 1fr;
  overflow: hidden;
  border-radius: var(--radius);
}
.video-thumb {
  min-height: 180px;
  display: grid;
  place-items: center;
  text-align: center;
  color: white;
  font-size: 34px;
  font-weight: 950;
  line-height: 1;
}
.video-thumb.navy { background: linear-gradient(140deg, var(--navy), var(--navy-dark)); }
.video-thumb.blue { background: linear-gradient(140deg, #4c91ca, var(--blue)); }
.video-thumb.green { background: linear-gradient(140deg, #68b25d, #34772d); }
.video-card > div:last-child { padding: 18px; }
.video-card span {
  color: var(--blue);
  font-size: 11px;
  font-weight: 950;
  letter-spacing: .12em;
}
.video-card h3 { margin-top: 6px; }
.coming-soon { color: var(--muted); font-style: italic; }

.sources-section { padding-top: 48px; }
.source-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
}
.source-grid > * {
  min-height: 130px;
  padding: 20px;
  border-radius: 17px;
  text-decoration: none;
}
.source-grid a:hover { border-color: var(--blue); }
.source-grid strong { display: block; color: var(--navy); font-size: 17px; }
.source-grid span { display: block; margin-top: 8px; color: var(--muted); }

.site-footer {
  max-width: var(--max);
  margin: 26px auto 0;
  padding: 28px 24px 42px;
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 30px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.site-footer strong { color: var(--navy); }
.site-footer p { margin: 4px 0 0; }

@media (max-width: 1050px) {
  .feature-grid, .category-grid { grid-template-columns: repeat(2, 1fr); }
  .video-grid { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  .menu-button { display: block; }
  nav {
    display: none;
    position: absolute;
    top: 76px;
    right: 18px;
    left: 18px;
    padding: 10px;
    flex-direction: column;
    align-items: stretch;
    border-radius: 14px;
    background: var(--navy-dark);
    box-shadow: var(--shadow);
  }
  nav.open { display: flex; }
  nav a { padding: 12px; }
  .hero {
    padding-top: 46px;
    grid-template-columns: 1fr;
  }
  .hero h1 { font-size: 50px; }
  .deadline-grid { grid-template-columns: 1fr; }
  .assistant-status { margin-left: 16px; margin-right: 16px; flex-direction: column; align-items: flex-start; }
  .source-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .header-inner { padding-left: 15px; padding-right: 15px; }
  .brand strong { font-size: 15px; }
  .brand small { display: none; }
  .hero, .section { padding-left: 16px; padding-right: 16px; }
  .hero h1 { font-size: 42px; }
  .hero-copy { font-size: 17px; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .scope-banner { margin-left: 16px; margin-right: 16px; }
  .feature-grid, .category-grid { grid-template-columns: 1fr; }
  .deadline-card { min-height: auto; }
  .video-card { grid-template-columns: 92px 1fr; }
  .site-footer { grid-template-columns: 1fr; padding-left: 16px; padding-right: 16px; }
}