/* ── Tokens ─────────────────────────────────────────────────────── */
:root {
  --bg: #0d1b2a;
  --bg-strip: #e8e8ec;
  --yellow: #f5c800;
  --yellow-dark: #d4a800;
  --blue: #2b7de9;
  --text: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.65);
  --border: rgba(255, 255, 255, 0.15);

  --font-sans: "Nunito", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Fira Code", monospace;

  --max: 1060px;
  --pad: clamp(1.25rem, 5vw, 4rem);
  --radius: 8px;
}

/* ── Reset ──────────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  font-size: 18px;
  scroll-behavior: smooth;
  scroll-padding-top: 64px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  animation: fadein 1.4s ease both;
  overflow-x: hidden;
}

body.is-leaving {
  animation: fadeout 0.2s ease forwards;
}

@keyframes fadein {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes fadeout {
  to {
    opacity: 0;
    transform: translateY(-5px);
  }
}
@keyframes underline-pulse {
  0%,
  100% {
    transform: scaleX(1);
  }
  45% {
    transform: scaleX(0);
  }
}

/* ── Scroll reveal ───────────────────────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

img {
  display: block;
  max-width: 100%;
}
a {
  color: var(--yellow);
  text-decoration: none;
}
a:hover {
  text-decoration: none;
}

ul[role="list"] {
  list-style: none;
}

/* ── Animated yellow underline (hover-only) ─────────────────────── */
.nav__links a,
.maintainers__left a,
.install__left a,
.features__right a,
.sponsors__body a {
  position: relative;
  padding-bottom: 2px;
}
.nav__links a::after,
.install__left a::after,
.maintainers__left a::after,
.features__right a::after,
.sponsors__body a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--yellow);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.nav__links a:hover::after,
.install__left a:hover::after,
.maintainers__left a:hover::after,
.features__right a:hover::after,
.sponsors__body a:hover::after {
  transform: scaleX(1);
}

/* ── Scroll arrow decoration ────────────────────────────────────── */
/*
  `translate` (CSS individual transform) handles the section-crossing offset.
  `transform` is reserved for the bob @keyframes so the two don't conflict.
  `pointer-events: none` prevents the crossing portion from blocking clicks.
*/
.scroll-arrow {
  position: relative;
  width: 5px;
  height: 200px;
  background: var(--yellow);
  margin-top: 2.5rem;
  z-index: 2;
  pointer-events: none;
  animation: arrow-bob 1.4s ease-in-out infinite;
}

@keyframes arrow-bob {
  0%,
  100% {
    transform: none;
  }
  50% {
    transform: translateY(30px);
  }
}

.scroll-arrow::after {
  content: "";
  position: absolute;
  bottom: -18px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 14px solid transparent;
  border-right: 14px solid transparent;
  border-top: 20px solid var(--yellow);
}

.scroll-arrow--right {
  margin-left: auto;
}

/*
  Crossing arrows are absolutely positioned at the section edge so they
  sit in the padding gutter — well clear of text and grid content.
  `translate: 0 60px` is the consistent crossing offset; the `arrow-bob`
  animation stacks on top via the separate `transform` property.
*/
.scroll-arrow--hero,
.scroll-arrow--features,
.scroll-arrow--install,
.scroll-arrow--maintainers,
.scroll-arrow--center {
  position: absolute;
  bottom: 0;
  margin-top: 0;
  translate: 0 60px;
}

.scroll-arrow--hero {
  right: -2.5rem;
  height: 220px;
  translate: 0 -120px;
}
.scroll-arrow--features {
  left: -2.5rem;
  height: 310px;
}
.scroll-arrow--install {
  right: -2.5rem;
  height: 400px;
}
.scroll-arrow--maintainers {
  left: -2.5rem;
  height: 330px;
}
.scroll-arrow--center {
  left: 50%;
  height: 90px;
  translate: -50% 50px;
}

/* ── Buttons ────────────────────────────────────────────────────── */
.btn--pro {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: var(--yellow);
  color: #000;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 2rem;
  white-space: nowrap;
  transition: background 0.15s;
  text-decoration: none;
  cursor: pointer;
}

.btn--pro:hover {
  background: var(--yellow-dark);
  text-decoration: none;
}

.nav-actions {
  display: flex;
  width: 100%;
  gap: 0.75rem;
  align-items: center;
  justify-content: flex-end;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition:
    background 0.15s,
    color 0.15s,
    border-color 0.15s;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--yellow-dark);
  color: #000;
  border-color: var(--yellow-dark);
}
.btn-primary:hover {
  background: transparent;
  border-color: var(--yellow);
  text-decoration: none;
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--yellow-dark);
}
.btn-outline:hover {
  background: var(--yellow);
  color: #000;
  text-decoration: none;
}

.btn-large {
  padding: 0.75rem 2rem;
  font-size: 1.05rem;
}

/* ── Nav ────────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
  height: 64px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  margin: 0 auto;
}

.nav__links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  text-decoration: none;
  transition: color 0.15s;
}

.nav__links a:hover,
.nav__links a.is-active {
  color: var(--text);
  text-decoration: none;
}

.nav__links a.is-active {
  color: var(--text);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  margin-left: auto;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition:
    transform 0.2s,
    opacity 0.2s;
}

/* ── Sections — shared ──────────────────────────────────────────── */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(5rem, 11vw, 9rem) var(--pad);
}

/*
  Descending z-index on sections that have crossing arrows so each
  section's overflow (the arrow tip) paints above the next section.
*/
#home {
  position: relative;
  z-index: 7;
}
#features {
  position: relative;
  z-index: 6;
}
#install {
  position: relative;
  z-index: 5;
}
#maintainers {
  position: relative;
  z-index: 4;
}
#contact {
  position: relative;
  z-index: 3;
}
#pro-teaser {
  position: relative;
  z-index: 2;
}

.section__heading {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text);
}

.section__heading--center {
  text-align: center;
}
.section__heading--right {
  text-align: right;
}

/* ── Hero ───────────────────────────────────────────────────────── */
.hero {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-top: 0;
  padding-bottom: 0;
}

.hero__box {
  background: var(--yellow);
  border-radius: 2rem;
  padding: 1rem 2rem;
  margin-bottom: 0.5rem;
  display: inline-block;
}

.hero__content {
  max-width: 1024px;
}

.hero__title {
  font-size: clamp(4rem, 14vw, 7rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 0.25rem;
  color: black;
}

.hero__subtitle {
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.hero__body {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 1024px;
  line-height: 1.8;
}

.hero__content ul {
  padding-left: 1.75em;
}

/* ── Sponsors ───────────────────────────────────────────────────── */
.sponsors {
  max-width: 100%;
  padding-left: 0;
  padding-right: 0;
}

.sponsors .section__heading {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
  margin-bottom: 2rem;
}

.sponsors__strip {
  width: 100%;
  background: var(--bg-strip);
  overflow: hidden;
  padding: 1.5rem 0;
}

.sponsors__track {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  width: max-content;
  animation: sponsor-scroll 55s linear infinite;
}

.sponsors__strip:hover .sponsors__track {
  animation-play-state: paused;
}

@keyframes sponsor-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.sponsor-item {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 160px;
  height: 120px;
  padding: 0 2.5rem;
  text-decoration: none;
}

.sponsor-item img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  filter: grayscale(15%);
  transition:
    filter 0.2s,
    transform 0.2s;
}

.sponsor-item:hover img {
  filter: grayscale(0%);
  transform: scale(1.05);
}

.sponsors__body {
  max-width: var(--max);
  margin: 3rem auto 0;
  padding: 0 var(--pad);
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.sponsors__body a {
  color: var(--yellow);
}

/* ── Features ───────────────────────────────────────────────────── */
.features {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 6rem;
  align-items: start;
}

.features__intro {
  color: var(--text-muted);
  margin-top: 2rem;
  line-height: 1.8;
  font-size: 1rem;
  max-width: 340px;
}

.feature-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.feature-table th {
  background: var(--bg-strip);
  color: #1a1a1a;
  font-weight: 700;
  padding: 0.85rem 1.25rem;
  text-align: center;
  border: 1px solid #ccc;
}

.feature-table td {
  padding: 0.75rem 1.25rem;
  text-align: center;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.feature-table tbody tr:nth-child(odd) td {
  background: rgba(255, 255, 255, 0.03);
}

/* ── Install ────────────────────────────────────────────────────── */
.install {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}

.install__package {
  margin-bottom: 3.5rem;
}

.install__package h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.install__left p.more {
  padding-top: 0.5em;
  text-align: right;
}

pre {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1.25rem;
  overflow-x: auto;
}

pre code,
code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text);
}

p code {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  padding: 0.15em 0.4em;
  font-size: 0.85em;
}

.install__right {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.install__right .section__heading {
  margin-bottom: 1.25rem;
}

.install__note {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.install__note strong {
  color: var(--text);
}

/* ── Articles ───────────────────────────────────────────────────── */
.articles__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 3rem;
}

.articles__more {
  color: var(--text-muted);
  font-size: 0.95rem;
  padding-bottom: 2px;
  text-decoration: none;
  cursor: pointer;
  position: relative;
}

.articles__more::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--yellow);
  transform: scaleX(1);
  transform-origin: left;
}

.articles__more:hover {
  color: var(--text);
  text-decoration: none;
}
.articles__more:hover::after {
  animation: underline-pulse 0.45s ease;
}

.articles__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
}

.article-card {
  padding: 1.75rem;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 220px;
}

.article-card:last-child {
  border-right: none;
}

.article-card__tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.article-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  flex: 1;
}

.article-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
}

.article-card__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  flex-shrink: 0;
}

.article-card__date {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ── Maintainers ────────────────────────────────────────────────── */
.maintainers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}

.maintainers__left {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.maintainers__name {
  font-size: 1.25rem;
  font-weight: 700;
}

.maintainers__left p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.maintainers__right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2rem;
}

.maintainers__avatar {
  width: clamp(180px, 30vw, 280px);
  height: clamp(180px, 30vw, 280px);
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

/* ── Contact ────────────────────────────────────────────────────── */
.contact {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
  padding-top: 3rem;
  padding-bottom: 6rem;
}

.contact__subtitle {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.contact__email {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-muted);
  padding-bottom: 2px;
  text-decoration: none;
  transition: color 0.15s;
  position: relative;
}

.contact__email::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--yellow);
  transform: scaleX(1);
  transform-origin: left;
}

.contact__email:hover {
  color: var(--text);
  text-decoration: none;
}
.contact__email:hover::after {
  animation: underline-pulse 0.45s ease;
}

/* ── Psycopg Pro teaser ─────────────────────────────────────────── */
.pro-teaser {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
  padding-top: 9rem;
  padding-bottom: 5rem;
}

.pro-teaser__box {
  background: var(--yellow);
  border-radius: 1.25rem;
  padding: 1.75rem 4rem;
}

.pro-teaser__box span {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 900;
  color: #000;
}

.pro-teaser__sub {
  color: var(--text-muted);
  font-size: 1rem;
}

/* ── Newsletter ─────────────────────────────────────────────────── */
.newsletter {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-bottom: clamp(10rem, 20vw, 16rem);
}

.newsletter__title {
  font-size: 1.25rem;
  font-weight: 700;
}

.newsletter__sub {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.newsletter__form {
  display: flex;
  gap: 0;
  max-width: 480px;
  margin-top: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.newsletter__form input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
}

.newsletter__form input::placeholder {
  color: var(--text-muted);
}

.newsletter__form button {
  background: var(--yellow);
  border: none;
  padding: 0.75rem 1.5rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: #000;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}

.newsletter__form button:hover {
  background: var(--yellow-dark);
}

/* ── Footer ─────────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 5em;
  padding: 1.5rem var(--pad);
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer__copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.site-footer__copy a {
  color: var(--text-muted);
  text-decoration: none;
  position: relative;
  padding-bottom: 2px;
}
.site-footer__copy a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--yellow);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.site-footer__copy a:hover::after {
  transform: scaleX(1);
}

.site-footer__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
}

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 800px) {
  .hero {
    flex-direction: column;
    min-height: auto;
  }

  .scroll-arrow--right,
  .scroll-arrow--features,
  .scroll-arrow--maintainers {
    display: none;
  }

  .features,
  .install,
  .maintainers {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .features__intro {
    max-width: 100%;
  }

  .install__right .section__heading {
    text-align: left;
  }
  .maintainers__right {
    align-items: flex-start;
  }
  .maintainers__right .section__heading {
    text-align: left;
  }

  .articles__grid {
    grid-template-columns: 1fr;
  }
  .article-card {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .article-card:last-child {
    border-bottom: none;
  }

  .nav__links {
    display: none;
    flex-direction: column;
  }
  .nav__toggle {
    display: flex;
  }

  .nav.is-open .nav__links {
    display: flex;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    padding: 1.5rem var(--pad);
    border-bottom: 1px solid var(--border);
    gap: 1.25rem;
  }

  .nav.is-open .btn--pro {
    display: none;
  }
}

@media (max-width: 480px) {
  .pro-teaser__box {
    padding: 1.25rem 2rem;
  }
  .newsletter__form {
    flex-direction: column;
    border-radius: var(--radius);
  }
  .newsletter__form input,
  .newsletter__form button {
    width: 100%;
    border-radius: 0;
  }
}