/* ============================================================
   Mälardalens Infraprojekt – Digitalt visitkort
   Version: v0.1.0
   Layout: One-page, ingen meny, mobilanpassad.
   ============================================================ */

/* ============================================================
   1. Grundvariabler
   Här ändras färg, bredd och känsla centralt.
   ============================================================ */
:root {
  --bg: #151515;
  --bg-soft: #1d1d1d;
  --bg-card: rgba(255, 255, 255, 0.075);
  --bg-card-strong: rgba(255, 255, 255, 0.11);
  --text: #f5f1e8;
  --muted: rgba(245, 241, 232, 0.72);
  --subtle: rgba(245, 241, 232, 0.52);
  --line: rgba(245, 241, 232, 0.14);
  --accent: #d8943c;
  --accent-strong: #f0aa4d;
  --accent-soft: rgba(216, 148, 60, 0.16);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 999px;
  --max-width: 1180px;
}

/* ============================================================
   2. Bas och tillgänglighet
   ============================================================ */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, rgba(216, 148, 60, 0.22), transparent 28rem),
    radial-gradient(circle at 85% 30%, rgba(255, 255, 255, 0.08), transparent 30rem),
    linear-gradient(145deg, #121212 0%, #1c1a17 48%, #101010 100%);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

body::selection {
  color: #171717;
  background: var(--accent-strong);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

/* ============================================================
   3. Dekorativ bakgrund
   Inga externa bilder krävs i första versionen.
   ============================================================ */
.page-noise {
  position: fixed;
  inset: 0;
  z-index: -3;
  opacity: 0.18;
  pointer-events: none;
  background-image:
    linear-gradient(115deg, transparent 0 48%, rgba(255, 255, 255, 0.06) 49%, transparent 50%),
    radial-gradient(circle, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 170px 170px, 18px 18px;
}

.background-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    linear-gradient(rgba(245, 241, 232, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 241, 232, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}

/* ============================================================
   4. Gemensam sektionbredd
   ============================================================ */
.section-shell {
  width: min(var(--max-width), calc(100% - 40px));
  margin-inline: auto;
}

/* ============================================================
   5. Toppfält
   Detta är inte en meny, bara avsändare + kontaktväg.
   ============================================================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(var(--max-width), calc(100% - 40px));
  margin: 18px auto 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(18, 18, 18, 0.68);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(18px);
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.topbar.is-scrolled {
  background: rgba(18, 18, 18, 0.88);
  border-color: rgba(216, 148, 60, 0.28);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: #151515;
  background: linear-gradient(135deg, var(--accent-strong), #c47728);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-text {
  overflow: hidden;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar-cta {
  flex: 0 0 auto;
  padding: 11px 18px;
  border: 1px solid rgba(216, 148, 60, 0.38);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--accent-soft);
  font-size: 0.92rem;
  font-weight: 700;
  transition: transform 180ms ease, background 180ms ease;
}

.topbar-cta:hover {
  transform: translateY(-1px);
  background: rgba(216, 148, 60, 0.25);
}

/* ============================================================
   6. Hero
   Huvudbudskap + kort sammanfattning.
   ============================================================ */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.62fr);
  gap: 36px;
  align-items: end;
  min-height: calc(100vh - 90px);
  padding: 82px 0 70px;
}

.eyebrow,
.section-label,
.card-kicker {
  margin: 0 0 14px;
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(3.05rem, 8vw, 7.7rem);
  line-height: 0.9;
  letter-spacing: -0.08em;
}

.hero-lead {
  max-width: 720px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2.2vw, 1.48rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #151515;
  background: linear-gradient(135deg, var(--accent-strong), #c47728);
  box-shadow: 0 18px 40px rgba(216, 148, 60, 0.22);
}

.button-secondary {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.hero-card {
  position: relative;
  overflow: hidden;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(155deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow);
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: -60% -45% auto auto;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(216, 148, 60, 0.22);
  filter: blur(12px);
}

.hero-list {
  position: relative;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-list li {
  display: flex;
  gap: 12px;
  color: var(--muted);
  font-weight: 600;
}

.hero-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--accent-strong);
  box-shadow: 0 0 0 6px rgba(216, 148, 60, 0.13);
}

/* ============================================================
   7. Rubriker och intro
   ============================================================ */
.intro,
.competence,
.contact {
  padding: 54px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: var(--shadow);
}

.intro h2,
.section-heading h2,
.competence h2,
.contact h2 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2rem, 4.2vw, 4.2rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.intro p,
.contact p {
  max-width: 860px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.section-heading {
  margin-bottom: 26px;
}

/* ============================================================
   8. Tjänstekort
   ============================================================ */
.services,
.team {
  padding: 92px 0 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.service-card,
.person-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.20);
}

.service-card {
  min-height: 280px;
  padding: 24px;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(216, 148, 60, 0.32);
  background: var(--bg-card-strong);
}

.service-number {
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.service-card h3 {
  margin: 72px 0 12px;
  font-size: 1.34rem;
  letter-spacing: -0.035em;
}

.service-card p {
  margin: 0;
  color: var(--muted);
}

/* ============================================================
   9. Kompetenstaggar
   ============================================================ */
.competence {
  margin-top: 92px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.tag-cloud span {
  padding: 10px 14px;
  border: 1px solid rgba(216, 148, 60, 0.25);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--accent-soft);
  font-size: 0.95rem;
  font-weight: 700;
}

/* ============================================================
   10. Team
   ============================================================ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.person-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px;
}

.person-avatar {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 18px;
  color: #151515;
  background: linear-gradient(135deg, var(--accent-strong), #c47728);
  font-weight: 900;
}

.person-card h3 {
  margin: 0 0 4px;
  font-size: 1.05rem;
}

.person-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

/* ============================================================
   11. Kontakt
   ============================================================ */
.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(310px, 0.42fr);
  gap: 34px;
  align-items: center;
  margin-top: 92px;
}

.contact-card {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.18);
}

.contact-row {
  display: grid;
  gap: 4px;
  padding: 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  transition: background 180ms ease, transform 180ms ease;
}

.contact-row:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.10);
}

.contact-row span {
  color: var(--subtle);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.contact-row strong {
  font-size: 1.02rem;
}

.copy-button {
  min-height: 48px;
  border: 0;
  border-radius: var(--radius-sm);
  color: #151515;
  background: linear-gradient(135deg, var(--accent-strong), #c47728);
  cursor: pointer;
  font-weight: 900;
}

/* ============================================================
   12. Footer
   ============================================================ */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 36px 0 48px;
  color: var(--subtle);
  font-size: 0.92rem;
}

.footer p {
  margin: 0;
}

.footer a {
  color: var(--muted);
  font-weight: 700;
}

/* ============================================================
   13. Scroll-animation
   JavaScript lägger till .is-visible när elementet syns.
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   14. Responsiv layout
   ============================================================ */
@media (max-width: 980px) {
  .hero,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 74px;
  }

  .hero-card {
    max-width: 620px;
  }

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

  .team-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .section-shell,
  .topbar {
    width: min(100% - 28px, var(--max-width));
  }

  .topbar {
    margin-top: 12px;
  }

  .brand-text {
    max-width: 180px;
  }

  .topbar-cta {
    padding-inline: 14px;
  }

  .hero h1 {
    font-size: clamp(3rem, 18vw, 4.6rem);
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: 230px;
  }

  .service-card h3 {
    margin-top: 52px;
  }

  .intro,
  .competence,
  .contact {
    padding: 28px;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}