/* ==========================================================================
   SKK CONSULTANTS — layout.css
   Page shell: header, navigation, sections, grids, footer.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. WRAPPERS & SECTIONS
   -------------------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--narrow { max-width: 980px; }
.wrap--full { max-width: none; padding-inline: 0; }

.section { padding-block: var(--section-y); }
.section--tight { padding-block: calc(var(--section-y) * 0.62); }
.section--flush-top { padding-top: 0; }

.section--dark {
  background: var(--s-dark);
  color: var(--c-concrete);
}
.section--dark h2,
.section--dark h3,
.section--dark h4 { color: var(--c-white); }
.section--dark .section-head p,
.section--dark .lede { color: rgba(232, 230, 227, 0.72); }

.section--sunken { background: var(--s-sunken); }
.section--raised { background: var(--s-raised); }

/* Hairline separator used between quiet sections */
.section--ruled { border-top: 1px solid var(--c-rule); }

/* --------------------------------------------------------------------------
   2. GRIDS
   -------------------------------------------------------------------------- */
.grid { display: grid; gap: var(--sp-5); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* Split: image on one side, prose on the other */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 1rem + 4vw, 5rem);
  align-items: center;
}
.split--wide-media { grid-template-columns: 1.15fr 1fr; }
.split--wide-text  { grid-template-columns: 1fr 1.15fr; }
.split--top { align-items: start; }
.split__media { position: relative; }
.split__body { max-width: 34rem; }

/* Reverse on desktop without touching source order */
.split--reverse .split__media { order: 2; }

@media (max-width: 900px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .split,
  .split--wide-media,
  .split--wide-text { grid-template-columns: 1fr; }
  .split--reverse .split__media { order: 0; }
}

@media (max-width: 560px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   3. HEADER
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color 0.35s var(--ease),
              border-color 0.35s var(--ease),
              height 0.35s var(--ease);
}

/* Pages that don't open on a dark hero start solid */
.site-header--solid,
.site-header.is-stuck {
  background: var(--c-white);
  border-bottom-color: var(--c-rule);
}

.site-header.is-stuck { height: 66px; }

.site-header__inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
}

/* Wordmark */
.brand { display: flex; align-items: center; gap: 0.7rem; }

.brand__logo{
  width: 50px;
  background: transparent;
}
.brand__mark {
  width: 38px;
  height: 38px;
  flex: none;
  display: grid;
  place-items: center;
  background: var(--c-brand);
  color: var(--c-white);
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.brand__text { display: flex; flex-direction: column; line-height: 1; }

.brand__name {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: 0.06em;
  color: var(--c-white);
  transition: color 0.35s var(--ease);
}

.brand__tag {
  margin-top: 4px;
  font-size: 0.5625rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--c-sand);
  transition: color 0.35s var(--ease);
}

.site-header--solid .brand__name,
.site-header.is-stuck .brand__name { color: var(--c-charcoal); }
.site-header--solid .brand__tag,
.site-header.is-stuck .brand__tag { color: var(--c-ink-faint); }

/* Primary navigation */
.nav { display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2.25rem); }

/* These two live inside the drawer and are only shown at mobile widths */
.nav__cta,
.nav__contact { display: none; }

.nav__link {
  position: relative;
  padding-block: 0.4rem;
  font-size: var(--t-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.86);
  transition: color 0.25s var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--c-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav__link:hover { color: var(--c-white); }
.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--c-white); }

.site-header--solid .nav__link,
.site-header.is-stuck .nav__link { color: var(--c-slate); }
.site-header--solid .nav__link:hover,
.site-header--solid .nav__link.is-active,
.site-header.is-stuck .nav__link:hover,
.site-header.is-stuck .nav__link.is-active { color: var(--c-charcoal); }

.header__actions { display: flex; align-items: center; gap: var(--sp-4); }

.header__phone {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--t-sm);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
}
.site-header--solid .header__phone,
.site-header.is-stuck .header__phone { color: var(--c-slate); }

.header__cta { padding: 0.7rem 1.2rem; }

/* Mobile toggle */
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  margin-right: -8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-white);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease), background-color 0.3s var(--ease);
}
.site-header--solid .nav-toggle span,
.site-header.is-stuck .nav-toggle span { background: var(--c-charcoal); }

.nav-toggle[aria-expanded="true"] span { background: var(--c-white); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1080px) {
  .header__phone { display: none; }
}

@media (max-width: 960px) {
  .nav-toggle { display: flex; }
  .header__cta { display: none; }

  .nav {
    position: fixed;
    inset: 0;
    z-index: -1;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    padding: var(--header-h) var(--gutter) var(--sp-8);
    background: var(--s-dark);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-1.5rem);
    transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), visibility 0.35s;
    overflow-y: auto;
  }

  .nav.is-open { opacity: 1; visibility: visible; transform: none; }

  .nav__link {
    color: var(--c-concrete);
    font-family: var(--f-display);
    font-size: clamp(1.75rem, 7vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    text-transform: none;
    padding-block: 0.6rem;
    border-bottom: 1px solid var(--c-rule-dark);
  }
  .nav__link::after { display: none; }
  .nav__link.is-active { color: var(--c-brand-light); }

  .nav__cta { display: block; margin-top: var(--sp-6); }
  .nav__cta .btn { width: 100%; }

  .nav__contact {
    display: block;
    margin-top: var(--sp-5);
    font-size: var(--t-sm);
    color: rgba(232, 230, 227, 0.7);
  }
  .nav__contact a { color: var(--c-sand); }
}

/* --------------------------------------------------------------------------
   4. PAGE HERO (inner pages)
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  min-height: clamp(340px, 46vh, 520px);
  display: flex;
  align-items: flex-end;
  padding-top: calc(var(--header-h) + var(--sp-7));
  padding-bottom: var(--sp-8);
  background: var(--s-dark-2);
  overflow: hidden;
}

.page-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, rgba(15, 15, 15, 0.92) 0%, rgba(15, 15, 15, 0.55) 45%, rgba(15, 15, 15, 0.35) 100%),
    linear-gradient(to right, rgba(15, 15, 15, 0.7) 0%, rgba(15, 15, 15, 0) 65%);
}

.page-hero__inner { position: relative; width: 100%; }

.page-hero h1 { color: var(--c-white); max-width: 18ch; }

.page-hero p {
  margin-top: var(--sp-4);
  max-width: 52ch;
  color: rgba(232, 230, 227, 0.82);
  font-size: var(--t-md);
}

/* Breadcrumb */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--sp-4);
  font-size: var(--t-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(232, 230, 227, 0.6);
}
.crumbs a { color: var(--c-sand); }
.crumbs a:hover { color: var(--c-white); }
.crumbs span[aria-current] { color: rgba(232, 230, 227, 0.6); }

/* --------------------------------------------------------------------------
   5. FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--s-dark-2);
  color: rgba(232, 230, 227, 0.72);
  padding-top: var(--sp-9);
  font-size: 0.9375rem;
}

.footer__top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: clamp(2rem, 4vw, 4rem);
  padding-bottom: var(--sp-8);
}

.footer__brand .brand__name { color: var(--c-white); }
.footer__brand p {
  margin-top: var(--sp-4);
  max-width: 34ch;
  line-height: 1.7;
}

.footer__title {
  font-family: var(--f-display);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-white);
  margin-bottom: var(--sp-4);
  padding-bottom: var(--sp-3);
  border-bottom: 2px solid var(--c-brand);
  display: inline-block;
}

.footer__list li + li { margin-top: 0.6rem; }
.footer__list a { transition: color 0.25s var(--ease); }
.footer__list a:hover { color: var(--c-sand); }

.footer__contact li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}
.footer__contact li + li { margin-top: var(--sp-4); }
.footer__contact .icon { color: var(--c-brand-light); margin-top: 0.35rem; }
.footer__contact a:hover { color: var(--c-sand); }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding-block: var(--sp-5);
  border-top: 1px solid var(--c-rule-dark);
  font-size: var(--t-sm);
  color: rgba(232, 230, 227, 0.5);
}

.footer__bottom nav { display: flex; flex-wrap: wrap; gap: var(--sp-5); }
.footer__bottom a:hover { color: var(--c-sand); }

.footer__note {
  padding-bottom: var(--sp-6);
  font-size: var(--t-xs);
  line-height: 1.7;
  color: rgba(232, 230, 227, 0.38);
  max-width: 90ch;
}

@media (max-width: 960px) {
  .footer__top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer__top { grid-template-columns: 1fr; gap: var(--sp-6); }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}

/* --------------------------------------------------------------------------
   6. BACK TO TOP
   -------------------------------------------------------------------------- */
.to-top {
  position: fixed;
  right: clamp(1rem, 2vw, 2rem);
  bottom: clamp(1rem, 2vw, 2rem);
  z-index: 90;
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  background: var(--c-brand);
  color: var(--c-white);
  opacity: 0;
  visibility: hidden;
  transform: translateY(0.75rem);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s, background-color 0.3s var(--ease);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--c-charcoal); }