/* Kursy Hub — Daylight Hub
   BEM: kh-*
*/

:root {
  --kh-ink: #0f1b2d;
  --kh-ink-soft: #3a4a5c;
  --kh-paper: #f4f7fa;
  --kh-mist: #e3eef5;
  --kh-line: rgba(15, 27, 45, 0.08);
  --kh-accent: #0f6b5c;
  --kh-accent-deep: #0a5246;
  --kh-accent-soft: #d7ede7;
  --kh-white: #ffffff;
  --kh-radius: 1.25rem;
  --kh-wrap: 72rem;
  --kh-font: "Sora", system-ui, sans-serif;
  --kh-display: "Fraunces", Georgia, serif;
  --kh-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body.kh-body {
  margin: 0;
  font-family: var(--kh-font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--kh-ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, #dcecf5 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #d9efe8 0%, transparent 50%),
    var(--kh-paper);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3 { font-family: var(--kh-display); font-weight: 700; line-height: 1.15; margin: 0; }

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.kh-skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--kh-ink);
  color: #fff;
  padding: .75rem 1rem;
  z-index: 100;
}
.kh-skip:focus { left: 1rem; top: 1rem; }

.kh-wrap {
  width: min(100% - 2rem, var(--kh-wrap));
  margin-inline: auto;
}

.kh-icon { display: block; flex-shrink: 0; }

/* Buttons */
.kh-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 2.75rem;
  padding: 0 1.25rem;
  border-radius: .85rem;
  border: 1px solid transparent;
  font-family: var(--kh-font);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  transition: background .25s var(--kh-ease), color .25s var(--kh-ease), transform .25s var(--kh-ease);
}
.kh-btn--lg { min-height: 3.15rem; padding-inline: 1.5rem; font-size: 1rem; }
.kh-btn--accent {
  background: var(--kh-accent);
  color: #fff;
}
.kh-btn--accent:hover { background: var(--kh-accent-deep); transform: translateY(-1px); }
.kh-btn--ghost {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
}
.kh-btn--ghost:hover { background: rgba(255, 255, 255, 0.22); }
.kh-btn--light {
  background: #fff;
  color: var(--kh-accent-deep);
}
.kh-btn--light:hover { background: var(--kh-accent-soft); }

.kh-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-weight: 600;
  color: var(--kh-accent);
}
.kh-link .kh-icon { width: 18px; height: 18px; }
.kh-link:hover { color: var(--kh-accent-deep); }

/* Header */
.kh-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 247, 250, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--kh-line);
}
.kh-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}
.kh-brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  font-family: var(--kh-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.kh-brand__mark {
  width: 1.65rem;
  height: 1.65rem;
  border-radius: .55rem;
  background: linear-gradient(145deg, var(--kh-accent), #1a8f7a);
}
.kh-brand .custom-logo-link img { max-height: 2.25rem; width: auto; }

.kh-nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: .4rem;
  color: var(--kh-ink);
}
.kh-nav-toggle__close { display: none; }
.kh-nav-toggle[aria-expanded="true"] .kh-nav-toggle__open { display: none; }
.kh-nav-toggle[aria-expanded="true"] .kh-nav-toggle__close { display: block; }

.kh-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.kh-nav__list {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.kh-nav__list a {
  font-size: .92rem;
  font-weight: 500;
  color: var(--kh-ink-soft);
}
.kh-nav__list a:hover { color: var(--kh-ink); }

/* Hero */
.kh-hero {
  position: relative;
  min-height: min(92svh, 52rem);
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
}
.kh-hero__media {
  position: absolute;
  inset: 0;
}
.kh-hero__photo {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(15, 27, 45, 0.55), rgba(15, 107, 92, 0.25)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1600' height='900' viewBox='0 0 1600 900'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' y1='0' x2='1' y2='1'%3E%3Cstop stop-color='%231a3a4a'/%3E%3Cstop offset='1' stop-color='%230f6b5c'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect fill='url(%23g)' width='1600' height='900'/%3E%3Ccircle cx='1180' cy='280' r='220' fill='%23ffffff' fill-opacity='.06'/%3E%3Ccircle cx='420' cy='620' r='280' fill='%23ffffff' fill-opacity='.05'/%3E%3Cpath d='M0 620c180-80 320-40 480 20s340 60 520-20 340-100 600-40v320H0z' fill='%230f1b2d' fill-opacity='.28'/%3E%3C/svg%3E")
    center / cover no-repeat;
  transform: scale(1.04);
  animation: kh-hero-pan 18s var(--kh-ease) infinite alternate;
}
.kh-hero__gradient {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(15, 27, 45, 0.15) 0%, rgba(15, 27, 45, 0.72) 78%),
    linear-gradient(90deg, rgba(15, 27, 45, 0.55) 0%, transparent 55%);
}
.kh-hero__content {
  position: relative;
  z-index: 2;
  padding: 5.5rem 0 4rem;
  max-width: 40rem;
  margin-left: max(1rem, calc((100% - var(--kh-wrap)) / 2));
  margin-right: auto;
  width: min(100% - 2rem, 40rem);
}
.kh-hero__brand {
  margin: 0 0 .85rem;
  font-family: var(--kh-display);
  font-size: clamp(1.75rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.kh-hero__title {
  font-size: clamp(2rem, 5.2vw, 3.35rem);
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}
.kh-hero__lead {
  margin: 0 0 1.75rem;
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: rgba(255, 255, 255, 0.88);
  max-width: 34rem;
}
.kh-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

@keyframes kh-hero-pan {
  from { transform: scale(1.04) translate3d(0, 0, 0); }
  to { transform: scale(1.08) translate3d(-1.5%, -1%, 0); }
}

/* Sections */
.kh-section { padding: 4.5rem 0; }
.kh-section__head { margin-bottom: 2rem; max-width: 36rem; }
.kh-section__head--row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  max-width: none;
}
.kh-section__title {
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
  letter-spacing: -0.02em;
  margin-bottom: .5rem;
}
.kh-section__sub {
  margin: 0;
  color: var(--kh-ink-soft);
  font-size: 1.05rem;
}

/* Directions — interactive rows, not product cards */
.kh-directions { background: transparent; }
.kh-directions__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .85rem;
}
.kh-directions__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 1.25rem;
  border-radius: var(--kh-radius);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--kh-line);
  transition: border-color .25s var(--kh-ease), transform .25s var(--kh-ease), background .25s var(--kh-ease);
}
.kh-directions__link:hover {
  border-color: rgba(15, 107, 92, 0.35);
  background: #fff;
  transform: translateY(-2px);
}
.kh-directions__icon {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: .9rem;
  color: var(--kh-accent);
  background: var(--kh-accent-soft);
}
.kh-directions__name {
  display: block;
  font-family: var(--kh-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: .2rem;
}
.kh-directions__text {
  display: block;
  color: var(--kh-ink-soft);
  font-size: .92rem;
}
.kh-directions__go {
  color: var(--kh-accent);
  opacity: .55;
  transition: opacity .25s var(--kh-ease), transform .25s var(--kh-ease);
}
.kh-directions__link:hover .kh-directions__go {
  opacity: 1;
  transform: translateX(3px);
}

/* Steps */
.kh-steps {
  background: linear-gradient(180deg, transparent, rgba(215, 237, 231, 0.45), transparent);
}
.kh-steps__list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  counter-reset: none;
}
.kh-steps__item {
  position: relative;
  padding: 1.75rem 1.5rem 1.5rem;
  border-radius: var(--kh-radius);
  background: #fff;
  border: 1px solid var(--kh-line);
}
.kh-steps__num {
  position: absolute;
  top: 1rem;
  right: 1.15rem;
  font-family: var(--kh-display);
  font-size: 2rem;
  color: var(--kh-mist);
  line-height: 1;
}
.kh-steps__icon {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: 1rem;
  border-radius: .8rem;
  color: var(--kh-accent);
  background: var(--kh-accent-soft);
}
.kh-steps__title {
  font-size: 1.25rem;
  margin-bottom: .5rem;
}
.kh-steps__text {
  margin: 0;
  color: var(--kh-ink-soft);
}

/* Benefits */
.kh-benefits__layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2.5rem;
  align-items: start;
}
.kh-benefits__intro .kh-section__title { margin-bottom: .75rem; }
.kh-benefits__intro .kh-section__sub { margin-bottom: 1.5rem; max-width: 28rem; }
.kh-benefits__list {
  display: grid;
  gap: .85rem;
}
.kh-benefits__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.15rem 1.2rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--kh-line);
}
.kh-benefits__icon {
  display: grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: .75rem;
  color: #fff;
  background: var(--kh-accent);
}
.kh-benefits__title {
  font-size: 1.1rem;
  margin-bottom: .25rem;
}
.kh-benefits__text {
  margin: 0;
  color: var(--kh-ink-soft);
  font-size: .95rem;
}

/* Course rails */
.kh-rails__track {
  display: grid;
  gap: .75rem;
}
.kh-rail {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.25rem;
  align-items: center;
  padding: 1.25rem 1.4rem;
  border-radius: var(--kh-radius);
  background: #fff;
  border: 1px solid var(--kh-line);
  transition: border-color .25s var(--kh-ease);
}
.kh-rail:hover { border-color: rgba(15, 107, 92, 0.3); }
.kh-rail__school {
  margin: 0 0 .25rem;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--kh-accent);
}
.kh-rail__title {
  font-size: 1.25rem;
  margin-bottom: .35rem;
}
.kh-rail__excerpt {
  margin: 0;
  color: var(--kh-ink-soft);
  font-size: .95rem;
}
.kh-rail__side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: .65rem;
}
.kh-rail__price {
  margin: 0;
  font-weight: 600;
  white-space: nowrap;
}

/* Blog */
.kh-blog__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}
.kh-blog__link {
  display: block;
  height: 100%;
}
.kh-blog__media {
  display: block;
  aspect-ratio: 16 / 10;
  border-radius: 1rem;
  overflow: hidden;
  margin-bottom: .9rem;
  background: var(--kh-mist);
}
.kh-blog__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--kh-ease);
}
.kh-blog__link:hover .kh-blog__media img { transform: scale(1.04); }
.kh-blog__media--empty {
  background:
    linear-gradient(135deg, var(--kh-mist), var(--kh-accent-soft));
}
.kh-blog__meta {
  display: block;
  font-size: .8rem;
  color: var(--kh-ink-soft);
  margin-bottom: .35rem;
}
.kh-blog__title {
  font-size: 1.2rem;
  margin-bottom: .4rem;
}
.kh-blog__excerpt {
  margin: 0;
  color: var(--kh-ink-soft);
  font-size: .95rem;
}

/* CTA band */
.kh-cta {
  margin: 1rem 0 0;
  padding: 4rem 0;
  background:
    linear-gradient(135deg, #0f6b5c 0%, #0f1b2d 100%);
  color: #fff;
}
.kh-cta__inner {
  max-width: 36rem;
}
.kh-cta__title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  margin-bottom: .75rem;
}
.kh-cta__text {
  margin: 0 0 1.5rem;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.05rem;
}

/* Sticky mobile CTA */
.kh-sticky-cta {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  padding: .75rem 1rem calc(.75rem + env(safe-area-inset-bottom));
  background: rgba(244, 247, 250, 0.94);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--kh-line);
}
.kh-sticky-cta .kh-btn { width: 100%; }

/* Footer */
.kh-footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--kh-line);
  background: rgba(255, 255, 255, 0.45);
}
.kh-footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1.2fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.kh-footer__name {
  margin: 0 0 .35rem;
  font-family: var(--kh-display);
  font-size: 1.35rem;
  font-weight: 700;
}
.kh-footer__tag,
.kh-footer__note {
  margin: 0;
  color: var(--kh-ink-soft);
  font-size: .92rem;
}
.kh-footer__list {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.25rem;
}
.kh-footer__list a { color: var(--kh-ink-soft); font-weight: 500; }
.kh-footer__list a:hover { color: var(--kh-accent); }
.kh-footer__copy {
  padding-top: 1rem;
  border-top: 1px solid var(--kh-line);
  color: var(--kh-ink-soft);
  font-size: .85rem;
}

/* Content pages */
.kh-page,
.kh-single {
  padding: 3rem 0 4rem;
}
.kh-prose {
  max-width: 44rem;
}
.kh-prose h1 {
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  margin-bottom: 1rem;
}
.kh-prose .entry-content > * + * { margin-top: 1rem; }
.kh-prose .entry-content a {
  color: var(--kh-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.kh-archive-title {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  margin-bottom: 1.5rem;
}

/* Reveal */
[data-kh-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .7s var(--kh-ease), transform .7s var(--kh-ease);
}
[data-kh-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* Responsive */
@media (max-width: 960px) {
  .kh-directions__list { grid-template-columns: 1fr; }
  .kh-steps__list { grid-template-columns: 1fr; }
  .kh-benefits__layout { grid-template-columns: 1fr; }
  .kh-blog__grid { grid-template-columns: 1fr; }
  .kh-footer__grid { grid-template-columns: 1fr; }
  .kh-section__head--row { flex-direction: column; align-items: flex-start; }
  .kh-rail {
    grid-template-columns: 1fr;
  }
  .kh-rail__side {
    align-items: flex-start;
    flex-direction: row;
    justify-content: space-between;
    width: 100%;
  }
}

@media (max-width: 768px) {
  .kh-nav-toggle { display: inline-flex; }
  .kh-nav {
    position: fixed;
    inset: 4.25rem 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    padding: 1rem 1rem 1.25rem;
    background: rgba(244, 247, 250, 0.98);
    border-bottom: 1px solid var(--kh-line);
  }
  .kh-nav.is-open { display: flex; }
  .kh-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: .85rem;
  }
  .kh-nav__cta { width: 100%; }
  .kh-hero { min-height: auto; }
  .kh-hero__content {
    margin-left: auto;
    width: min(100% - 2rem, var(--kh-wrap));
    padding: 4.5rem 0 3rem;
  }
  .kh-sticky-cta { display: block; }
  .kh-body--home .kh-footer { padding-bottom: 5.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .kh-hero__photo { animation: none; }
  [data-kh-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}