/* =========================================================
   TRUKKURINN EHF. — design tokens
   ========================================================= */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.75rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --content-narrow: 640px;
  --content-default: 1080px;
  --content-wide: 1280px;

  --font-display: 'Cabinet Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Satoshi', 'Segoe UI', sans-serif;

  /* Fixed light tones for text sitting on the hero photograph — the photo
     never flips with the theme, so this color must not flip either. */
  --color-on-photo: #fbfaf6;
  --color-on-photo-muted: color-mix(in oklab, #fbfaf6 88%, transparent);
  --color-on-photo-border: color-mix(in oklab, #fbfaf6 45%, transparent);
  --color-on-photo-hover: color-mix(in oklab, #fbfaf6 14%, transparent);
}

:root,
[data-theme='light'] {
  --color-bg: #f4f2ec;
  --color-surface: #ffffff;
  --color-surface-2: #fbfaf6;
  --color-surface-offset: #ece8de;
  --color-surface-offset-2: #e2ddd0;
  --color-divider: #ddd7c8;
  --color-border: #d2cbb9;

  --color-text: #1c1b18;
  --color-text-muted: #625d51;
  --color-text-faint: #a39d8c;
  --color-text-inverse: #fbfaf6;

  --color-primary: #cf5a24;
  --color-primary-hover: #b04a1a;
  --color-primary-active: #8c3a14;
  --color-primary-highlight: #f0d8c9;

  --color-secondary: #275a70;
  --color-secondary-highlight: #d6e3e8;

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 60 / 0.08);
  --shadow-md: 0 8px 20px oklch(0.2 0.02 60 / 0.10);
  --shadow-lg: 0 20px 48px oklch(0.2 0.02 60 / 0.18);
}

[data-theme='dark'] {
  --color-bg: #14130f;
  --color-surface: #1b1a15;
  --color-surface-2: #201f19;
  --color-surface-offset: #26241d;
  --color-surface-offset-2: #2d2a21;
  --color-divider: #33301f;
  --color-border: #3c3829;

  --color-text: #ece8de;
  --color-text-muted: #a9a08b;
  --color-text-faint: #756c59;
  --color-text-inverse: #171612;

  --color-primary: #e97a41;
  --color-primary-hover: #f0925f;
  --color-primary-active: #f5aa80;
  --color-primary-highlight: #43301f;

  --color-secondary: #6ea4b8;
  --color-secondary-highlight: #253a41;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 8px 20px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 20px 48px oklch(0 0 0 / 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #14130f;
    --color-surface: #1b1a15;
    --color-surface-2: #201f19;
    --color-surface-offset: #26241d;
    --color-surface-offset-2: #2d2a21;
    --color-divider: #33301f;
    --color-border: #3c3829;
    --color-text: #ece8de;
    --color-text-muted: #a9a08b;
    --color-text-faint: #756c59;
    --color-text-inverse: #171612;
    --color-primary: #e97a41;
    --color-primary-hover: #f0925f;
    --color-primary-active: #f5aa80;
    --color-primary-highlight: #43301f;
    --color-secondary: #6ea4b8;
    --color-secondary-highlight: #253a41;
  }
}

/* =========================================================
   BASE
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-interactive), color var(--transition-interactive);
}

img, picture, svg { display: block; max-width: 100%; height: auto; }
ul[role='list'] { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }

h1, h2, h3 {
  font-family: var(--font-display);
  text-wrap: balance;
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.01em;
}
p { text-wrap: pretty; max-width: 62ch; }

:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

a, button, [role='button'] {
  transition: color var(--transition-interactive), background var(--transition-interactive),
    border-color var(--transition-interactive), box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--color-primary); color: var(--color-text-inverse);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); z-index: 200;
}
.skip-link:focus { left: var(--space-4); top: var(--space-4); }

.section-eyebrow, .eyebrow {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-family: var(--font-body); font-weight: 700; font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn--primary {
  background: var(--color-primary); color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn--ghost {
  background: transparent; color: var(--color-on-photo);
  border-color: var(--color-on-photo-border);
}
.btn--ghost:hover { background: var(--color-on-photo-hover); }
.btn--lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }
.btn--sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.btn--block { width: 100%; }

/* =========================================================
   HEADER
   ========================================================= */
.header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
}
.header__inner {
  max-width: var(--content-wide); margin-inline: auto;
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-6);
  padding: var(--space-3) var(--space-6);
}
.brand { display: flex; align-items: center; gap: var(--space-3); flex-shrink: 0; }
.brand__mark { flex-shrink: 0; }
.brand__name { font-family: var(--font-display); font-weight: 700; font-size: var(--text-lg); color: var(--color-text); }
.brand__suffix { color: var(--color-text-muted); font-weight: 500; }

.nav { display: flex; gap: var(--space-8); }
.nav a { font-size: var(--text-sm); font-weight: 500; color: var(--color-text-muted); }
.nav a:hover { color: var(--color-text); }

.header__actions { display: flex; align-items: center; gap: var(--space-3); }
.theme-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem; border-radius: var(--radius-full);
  color: var(--color-text-muted);
}
.theme-toggle:hover { background: var(--color-surface-offset); color: var(--color-text); }

.nav-toggle {
  display: none; width: 2.25rem; height: 2.25rem; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); color: var(--color-text);
}

.nav-mobile {
  display: none; flex-direction: column; gap: var(--space-1);
  padding: var(--space-2) var(--space-6) var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.nav-mobile a { padding: var(--space-3) 0; font-size: var(--text-base); font-weight: 500; color: var(--color-text); border-bottom: 1px solid var(--color-divider); }
.nav-mobile .btn { margin-top: var(--space-3); }
.header.is-nav-open .nav-mobile { display: flex; }

@media (max-width: 860px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }
  .header__actions .btn--sm { display: none; }
}

@media (min-width: 861px) {
  .nav-mobile { display: none !important; }
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex; align-items: flex-end;
  overflow: hidden;
}
.hero__img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center 55%;
}
.hero__scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, oklch(0.15 0.02 40 / 0.35) 0%, oklch(0.15 0.02 40 / 0.15) 35%, oklch(0.12 0.02 40 / 0.82) 92%),
    linear-gradient(90deg, oklch(0.12 0.02 40 / 0.55) 0%, transparent 60%);
}
.hero__content {
  position: relative; z-index: 1;
  max-width: var(--content-wide); margin-inline: auto; width: 100%;
  padding: var(--space-12) var(--space-6) var(--space-20);
  color: var(--color-on-photo);
}
.hero .eyebrow { color: color-mix(in oklab, var(--color-primary) 70%, var(--color-on-photo) 30%); }
.hero__title { font-size: var(--text-3xl); margin-block: var(--space-4) var(--space-5); max-width: 16ch; }
.hero__lede { font-size: var(--text-lg); max-width: 42ch; color: var(--color-on-photo-muted); margin-bottom: var(--space-8); }
.hero__actions { display: flex; gap: var(--space-4); flex-wrap: wrap; }

/* =========================================================
   SHARED SECTION LAYOUT
   ========================================================= */
main > section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  padding-inline: var(--space-6);
}
.about, .contact { background: var(--color-surface-2); }
.services { background: var(--color-bg); }

/* =========================================================
   ABOUT
   ========================================================= */
.about__grid {
  max-width: var(--content-wide); margin-inline: auto;
  display: grid; grid-template-columns: 1.05fr 1fr; gap: var(--space-16); align-items: center;
}
.about__media img { border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }
.about__text h2 { font-size: var(--text-2xl); margin-block: var(--space-3) var(--space-5); }
.about__text p { color: var(--color-text-muted); margin-bottom: var(--space-4); }
.checklist { display: flex; flex-direction: column; gap: var(--space-2); margin-top: var(--space-6); }
.checklist li { position: relative; padding-left: var(--space-6); font-weight: 500; color: var(--color-text); }
.checklist li::before {
  content: ''; position: absolute; left: 0; top: 0.5em; width: 0.9em; height: 0.9em;
  border-radius: var(--radius-full); background: var(--color-primary-highlight);
  box-shadow: inset 0 0 0 3px var(--color-primary);
}

@media (max-width: 860px) {
  .about__grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .about__media { order: -1; }
}

/* =========================================================
   SERVICES
   ========================================================= */
.services__header { max-width: var(--content-wide); margin-inline: auto; margin-bottom: var(--space-12); }
.services__header h2 { font-size: var(--text-2xl); margin-top: var(--space-3); max-width: 24ch; }
.services__grid {
  max-width: var(--content-wide); margin-inline: auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6);
}
.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}
.card__icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 3rem; height: 3rem; border-radius: var(--radius-md);
  background: var(--color-primary-highlight); color: var(--color-primary);
  margin-bottom: var(--space-5);
}
.card h3 { font-size: var(--text-lg); margin-bottom: var(--space-2); font-family: var(--font-body); font-weight: 700; }
.card p { color: var(--color-text-muted); font-size: var(--text-sm); }

@media (max-width: 860px) {
  .services__grid { grid-template-columns: 1fr; }
}

/* =========================================================
   BANNER
   ========================================================= */
.banner {
  background: linear-gradient(120deg, var(--color-secondary), color-mix(in oklab, var(--color-secondary) 70%, black 20%));
  color: var(--color-text-inverse);
}
.banner__inner {
  max-width: var(--content-wide); margin-inline: auto;
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-8); flex-wrap: wrap;
}
.banner h2 { font-size: var(--text-xl); margin-bottom: var(--space-2); }
.banner p { color: color-mix(in oklab, var(--color-text-inverse) 85%, transparent); max-width: 40ch; }
.banner .btn--primary { flex-shrink: 0; }

/* =========================================================
   CONTACT
   ========================================================= */
.contact__grid {
  max-width: var(--content-wide); margin-inline: auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-16); align-items: start;
}
.contact__intro h2 { font-size: var(--text-2xl); margin-block: var(--space-3) var(--space-5); }
.contact__intro p { color: var(--color-text-muted); }

.contact__card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-xl); padding: var(--space-8);
  box-shadow: var(--shadow-md);
}
.contact__list { display: flex; flex-direction: column; gap: var(--space-5); margin-bottom: var(--space-6); }
.contact__list li { display: flex; align-items: flex-start; gap: var(--space-4); }
.contact__icon {
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  width: 2.5rem; height: 2.5rem; border-radius: var(--radius-full);
  background: var(--color-primary-highlight); color: var(--color-primary);
}
.contact__label { font-size: var(--text-xs); color: var(--color-text-muted); margin-bottom: 0.2em; }
.contact__value { font-size: var(--text-base); font-weight: 700; }
.contact__value--static { font-weight: 700; }
a.contact__value:hover { color: var(--color-primary); }

@media (max-width: 860px) {
  .contact__grid { grid-template-columns: 1fr; gap: var(--space-8); }
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer { background: var(--color-text); color: var(--color-text-inverse); padding-block: var(--space-12); }
.footer__inner { max-width: var(--content-wide); margin-inline: auto; padding-inline: var(--space-6); display: flex; flex-direction: column; align-items: center; gap: var(--space-4); text-align: center; }
.brand--footer .brand__name { color: var(--color-text-inverse); }
.brand--footer .brand__suffix { color: color-mix(in oklab, var(--color-text-inverse) 60%, transparent); }
.footer__copy { color: color-mix(in oklab, var(--color-text-inverse) 70%, transparent); font-size: var(--text-sm); }
.footer__meta { display: flex; gap: var(--space-3); font-size: var(--text-sm); color: color-mix(in oklab, var(--color-text-inverse) 80%, transparent); }
.footer__meta a:hover { color: var(--color-primary); }
.footer__bottom { font-size: var(--text-xs); color: color-mix(in oklab, var(--color-text-inverse) 50%, transparent); margin-top: var(--space-4); }

/* =========================================================
   RESPONSIVE TWEAKS
   ========================================================= */
@media (max-width: 560px) {
  .hero { min-height: 92vh; }
  .hero__content { padding-bottom: var(--space-12); }
  .banner__inner { flex-direction: column; align-items: flex-start; }
}