:root {
  --bg: #111519;
  --card-bg: #14191f;
  --border: #2a2d30;
  --text-bright: #ffffff;
  --text-dim: #c8c8c8;
  --rust: #ffb454;
  --ui-green: #b8cc52;
  --ui-yellow: #ffee99;
  --ui-red: #b53939;
  --ui-blue: #9e9eff;
  --ui-cyan: #0096cf;
  --ui-purple: #9c83b0;
  --ui-pink: #c487be;
  --ui-orange: #c09664;
}

* {
  box-sizing: border-box;
}

body {
  background-color: var(--bg);
  font-family: ui-monospace, "Cascadia Code", "Source Code Pro", monospace;
  margin: 0;
  line-height: 1.6;
  padding: 0 1.5rem;
  color: var(--text-bright);
}

header {
  max-width: 1000px;
  margin: 0 auto;
  padding: 3rem 0 0 0;
}

.header-container {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.logo {
  width: 20%;
  height: auto;
}

h1 {
  color: var(--rust);
  margin: 0;
  font-size: 2.2rem;
  letter-spacing: -1px;
  line-height: 1;
}

.tagline {
  color: var(--text-bright);
  font-size: 1rem;
  margin-top: 0.25rem;
  letter-spacing: 0.2px;
}

#disclaimer-text {
  font-size: 0.8rem;
  opacity: 0.7;
  padding-block: 0.5rem;
  font-style: italic;
  font-size: 0.7rem;
  color: var(--text-bright);
}
main {
  max-width: 1000px;
  margin: 2rem auto;
}

.intro {
  border-left: 2px solid var(--rust);
  padding: 0.25rem 0 0.25rem 1.25rem;
  margin-bottom: 2.5rem;
  max-width: 750px;
}

.intro h2 {
  color: var(--text-bright);
  margin: 0 0 0.25rem 0;
  font-size: 1.2rem;
}

.intro p {
  font-size: 1rem;
  color: var(--text-bright);
  margin: 0;
}

.filters {
  margin: 2rem 0;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.filters label {
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--text-dim);
  background: #1c2027;
  cursor: pointer;
}

.filters label:hover {
  border-color: var(--text-dim);
  color: var(--text-bright);
}

#all:checked ~ main .filters label[for="all"] {
  background: var(--rust);
  color: var(--bg);
  border-color: var(--rust);
  font-weight: bold;
}
#f-essentials:checked ~ main .filters label[for="f-essentials"] {
  background: var(--ui-blue);
  color: var(--bg);
  border-color: var(--ui-blue);
  font-weight: bold;
}
#f-lists:checked ~ main .filters label[for="f-lists"] {
  background: var(--ui-green);
  color: var(--bg);
  border-color: var(--ui-green);
  font-weight: bold;
}
#f-books:checked ~ main .filters label[for="f-books"] {
  background: var(--ui-purple);
  color: var(--bg);
  border-color: var(--ui-purple);
  font-weight: bold;
}
#f-videos:checked ~ main .filters label[for="f-videos"] {
  background: var(--ui-pink);
  color: var(--bg);
  border-color: var(--ui-pink);
  font-weight: bold;
}
#f-courses:checked ~ main .filters label[for="f-courses"] {
  background: var(--ui-orange);
  color: var(--bg);
  border-color: var(--ui-orange);
  font-weight: bold;
}
#f-career:checked ~ main .filters label[for="f-career"] {
  background: var(--ui-yellow);
  color: var(--bg);
  border-color: var(--ui-yellow);
  font-weight: bold;
}

#f-essentials:checked ~ main .card:not(.f-essentials),
#f-lists:checked ~ main .card:not(.f-lists),
#f-books:checked ~ main .card:not(.f-books),
#f-videos:checked ~ main .card:not(.f-videos),
#f-courses:checked ~ main .card:not(.f-courses),
#f-career:checked ~ main .card:not(.f-career) {
  display: none;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 15px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-top: 3px solid var(--border);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card.f-essentials {
  border-top-color: var(--ui-blue);
}

.card.f-lists {
  border-top-color: var(--ui-green);
}
.card.f-books {
  border-top-color: var(--ui-purple);
}

.card.f-videos {
  border-top-color: var(--ui-pink);
}

.card.f-courses {
  border-top-color: var(--ui-orange);
}
.card.f-career {
  border-top-color: var(--ui-yellow);
}

.card-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
}

.type {
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
}

h3 {
  font-size: 1.15rem;
  line-height: 1.3;
}

.card p {
  font-size: 0.8rem;
  color: var(--text-dim);
  flex-grow: 1;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.btn,
a {
  all: unset;
  cursor: pointer;
  color: var(--rust);
  text-decoration: underline;
  font-size: 0.9rem;
}

footer {
  max-width: 1000px;
  margin: 4rem auto 0 auto;
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

.footer-content p {
  margin: 0.15rem 0;
  font-size: 0.9rem;
  color: var(--text-bright);
}

.copyright {
  color: var(--text-dim);
  opacity: 0.6;
  margin-top: 1rem !important;
  font-size: 0.75rem !important;
}

@media (max-width: 700px) {
  header {
    padding-top: 2rem;
  }
  .header-container {
    flex-direction: column;
    text-align: center;
  }
  .resource-grid {
    grid-template-columns: 1fr;
  }
}