/*
 * Frakthubben Experience Alpha
 * Fas 4: layout.css
 *
 * Sidans övergripande layout: containers, header, hero, sektioner,
 * grids och responsiva brytpunkter. Komponenternas visuella styling
 * kommer i components.css.
 */

/* Container system */
.container {
  width: min(100% - (2 * var(--container-padding)), var(--container-lg));
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - (2 * var(--container-padding)), var(--container-sm));
  margin-inline: auto;
}

/* Global section rhythm */
.section {
  position: relative;
  padding-block: var(--section-space);
}

.section--soft {
  background: var(--color-background-soft);
}

.section--dark {
  overflow: hidden;
  background: var(--gradient-dark);
  color: var(--color-text-on-dark);
}

.section-heading {
  max-width: 48rem;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.section-heading--light {
  color: var(--color-text-on-dark);
}

.section-heading--light h2,
.section-heading--light h3,
.section-heading--light p {
  color: inherit;
}

.section-heading > :last-child {
  margin-bottom: 0;
}

.eyebrow {
  margin-bottom: var(--space-4);
}

/* Sticky header */
.site-header {
  position: sticky;
  z-index: var(--z-sticky);
  top: 0;
  min-height: var(--header-height);
  border-bottom: 1px solid rgba(203, 213, 225, 0.72);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.site-header__inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  min-height: var(--header-height);
  gap: clamp(1rem, 3vw, 2rem);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  min-width: max-content;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 2.4vw, 2rem);
  min-width: 0;
}

.site-nav a {
  white-space: nowrap;
}

/* Hero */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero::before,
.hero::after {
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  content: "";
  filter: blur(1px);
  pointer-events: none;
}

.hero::before {
  top: 8%;
  right: -8rem;
  width: 24rem;
  height: 24rem;
  background: rgba(47, 128, 215, 0.08);
}

.hero::after {
  bottom: -10rem;
  left: -7rem;
  width: 22rem;
  height: 22rem;
  background: rgba(243, 106, 29, 0.08);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(20rem, 0.92fr);
  align-items: center;
  min-height: calc(100svh - var(--header-height));
  padding-block: clamp(4rem, 8vw, 7rem);
  gap: clamp(3rem, 7vw, 7rem);
}

.hero__content {
  max-width: 50rem;
}

.hero__content h1 {
  max-width: 15ch;
  margin-bottom: var(--space-6);
}

.hero__lead {
  max-width: 42rem;
  margin-bottom: var(--space-8);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  margin: 0;
  padding: 0;
  list-style: none;
}

.trust-list li {
  margin: 0;
}

.hero__visual {
  display: grid;
  place-items: center;
  min-width: 0;
}

.hero-network-placeholder {
  width: min(100%, 34rem);
  aspect-ratio: 1 / 1;
}

/* Shared grids */
.comparison-grid,
.feature-grid,
.diagnostic-grid,
.experience-grid,
.next-step-grid,
.partner-level-grid {
  display: grid;
  gap: var(--card-gap);
}

.comparison-grid,
.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.diagnostic-grid,
.experience-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.next-step-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.partner-level-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* Value chain */
.value-chain {
  display: grid;
  grid-template-columns: repeat(6, minmax(8.75rem, 1fr));
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  overflow-x: auto;
  list-style: none;
  scroll-snap-type: x proximity;
}

.value-chain li {
  min-height: 8.5rem;
  margin: 0;
  scroll-snap-align: start;
}

/* Case study */
.case-study {
  display: grid;
  gap: clamp(2rem, 4vw, 3.5rem);
}

.case-study__header {
  max-width: 52rem;
}

.case-study__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--card-gap);
}

.case-study blockquote {
  max-width: 58rem;
}

/* Needs analysis */
.needs-selector {
  margin-top: clamp(2rem, 4vw, 3.5rem);
}

.needs-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}

/* Technology flow */
.technology-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: clamp(2rem, 5vw, 4rem);
}

/* FAQ */
.faq-list {
  display: grid;
  gap: var(--space-3);
  max-width: 54rem;
}

/* Final CTA */
.final-cta {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.final-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(18rem, 0.65fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
}

/* Footer */
.site-footer {
  padding-block: var(--space-8);
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* Dialog layout foundation */
.dialog {
  width: min(100% - 2rem, 42rem);
  max-height: min(48rem, calc(100svh - 2rem));
  overflow: auto;
}

/* Tablet */
@media (max-width: 68rem) {
  .site-header__inner {
    grid-template-columns: auto 1fr;
  }

  .site-nav {
    order: 3;
    grid-column: 1 / -1;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: var(--space-3);
  }

  .site-header__inner > .button {
    justify-self: end;
  }

  .hero__grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero__content {
    max-width: 54rem;
  }

  .hero__content h1 {
    max-width: 18ch;
  }

  .hero__visual {
    justify-items: start;
  }

  .hero-network-placeholder {
    width: min(100%, 42rem);
    aspect-ratio: 16 / 9;
  }

  .comparison-grid,
  .feature-grid,
  .next-step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .partner-level-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-study__grid {
    grid-template-columns: 1fr;
  }

  .technology-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .final-cta__inner {
    grid-template-columns: 1fr;
  }
}

/* Mobile */
@media (max-width: 48rem) {
  .site-header {
    position: relative;
  }

  .site-header__inner {
    display: flex;
    flex-wrap: wrap;
    min-height: auto;
    padding-block: var(--space-3);
  }

  .site-nav {
    width: 100%;
    order: 3;
    padding-bottom: 0;
  }

  .site-header__inner > .button {
    margin-left: auto;
  }

  .hero__grid {
    padding-block: clamp(3.5rem, 12vw, 5rem);
    gap: 2.5rem;
  }

  .hero__content h1 {
    max-width: 14ch;
  }

  .hero__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero__actions .button {
    width: 100%;
  }

  .trust-list {
    display: grid;
    gap: var(--space-3);
  }

  .comparison-grid,
  .feature-grid,
  .diagnostic-grid,
  .experience-grid,
  .next-step-grid,
  .partner-level-grid,
  .needs-grid,
  .technology-flow {
    grid-template-columns: 1fr;
  }

  .section-heading {
    margin-bottom: var(--space-10);
  }

  .value-chain {
    grid-template-columns: repeat(6, minmax(15rem, 82vw));
    margin-inline: calc(-1 * var(--container-padding));
    padding-inline: var(--container-padding);
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }
}