/* Trälhavet Technologies — site styles
   Loads after tokens.css. Set up base, layout, components. */

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button { background: none; border: none; padding: 0; font: inherit; cursor: pointer; color: inherit; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; transition: color var(--duration-base) var(--ease-out); }

/* ===== Base ===== */
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--gradient-page) var(--color-bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--color-text);
  line-height: var(--leading-tight);
}
h1 { font-size: var(--text-2xl); letter-spacing: var(--tracking-tight); }
h2 { font-size: var(--text-xl); }
h3 {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  line-height: var(--leading-snug);
}

p { margin-bottom: var(--space-3); max-width: var(--content-text); }
p.lead { font-size: var(--text-md); line-height: var(--leading-normal); color: var(--color-text-muted); max-width: 56ch; }

.eyebrow {
  font-family: var(--font-serif);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  display: block;
}

a:hover { color: var(--color-link-hover); }

/* ===== Layout ===== */
.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}
section { padding: var(--space-6) 0; }
/* Sticky header offset so anchor jumps don't land under it.
   Header height ≈ logo + 2*space-3 padding (logo: 80px desktop, 56px <900, 48px <720). */
section[id] { scroll-margin-top: 128px; }
@media (max-width: 900px) { section[id] { scroll-margin-top: 104px; } }
@media (max-width: 720px) { section[id] { scroll-margin-top: 96px; } }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(244, 246, 249, 0.92);
  backdrop-filter: saturate(1.5) blur(12px);
  -webkit-backdrop-filter: saturate(1.5) blur(12px);
  border-bottom: 0.5px solid var(--color-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-4);
}
.site-logo { display: flex; align-items: center; flex-shrink: 0; }
.site-logo img { height: 80px; width: auto; }
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  position: relative;
}
.site-nav-links {
  display: flex;
  gap: var(--space-5);
  align-items: center;
  flex-wrap: wrap;
}
.site-nav a {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-text);
}
.site-nav a:hover { color: var(--color-beacon); }
.lang-toggle {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding: 8px 12px;
  border: 0.5px solid var(--color-border-hover);
  border-radius: var(--radius-sm);
  line-height: 1;
}
.lang-toggle:hover {
  border-color: var(--color-text);
  color: var(--color-text);
}
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  color: var(--color-text);
}
.nav-toggle:hover { background: rgba(31, 58, 82, 0.06); }
.burger-icon,
.burger-icon::before,
.burger-icon::after {
  display: block;
  width: 22px;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-base) var(--ease-out),
              top var(--duration-base) var(--ease-out);
}
.burger-icon { position: relative; }
.burger-icon::before,
.burger-icon::after {
  content: '';
  position: absolute;
  left: 0;
}
.burger-icon::before { top: -6px; }
.burger-icon::after  { top: 6px; }
.nav-toggle[aria-expanded="true"] .burger-icon { background: transparent; }
.nav-toggle[aria-expanded="true"] .burger-icon::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .burger-icon::after  { top: 0; transform: rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: var(--space-7);
  padding-bottom: var(--space-7);
  min-height: clamp(420px, 48vw, 680px);
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero-bg picture { display: block; width: 100%; height: 100%; }
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
}
.hero-content {
  position: relative;
  width: 100%;
}
.hero-panel {
  max-width: 560px;
  padding: var(--space-5);
  background: rgba(244, 246, 249, 0.55);
  border: 0.5px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  box-shadow: var(--shadow-md);
}
.hero .eyebrow { margin-bottom: var(--space-3); }
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4.6vw, 3.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-4);
  max-width: 16ch;
}
.hero p.lead {
  margin-bottom: var(--space-5);
  max-width: 44ch;
}
@media (max-width: 720px) {
  .hero { min-height: clamp(360px, 90vw, 520px); }
  .hero-bg img { object-position: 75% center; }
  .hero h1 { max-width: 14ch; }
  .hero p.lead { max-width: 36ch; }
}
.cta-row {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  align-items: center;
}

/* ===== Buttons ===== */
.btn {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: 14px 22px;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--duration-base) var(--ease-out);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.btn-primary { background: var(--color-slate); color: var(--color-fog); }
.btn-primary:hover {
  background: #15293A;
  color: var(--color-fog);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent;
  color: var(--color-slate);
  border-color: var(--color-border-hover);
}
.btn-secondary:hover {
  background: rgba(31, 58, 82, 0.06);
  color: var(--color-slate);
  border-color: var(--color-text);
  box-shadow: var(--shadow-sm);
}
.btn-ghost {
  background: transparent;
  color: var(--color-slate);
  padding: 14px 4px;
}
.btn-ghost:hover { color: var(--color-beacon); }
.btn-beacon { background: var(--color-beacon); color: var(--color-white); }
.btn-beacon:hover {
  background: var(--color-beacon-deep);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-xs);
}

/* ===== Section header ===== */
.section-header { margin-bottom: var(--space-6); max-width: var(--content-narrow); }
.section-header .eyebrow { margin-bottom: var(--space-2); }
.section-header h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  max-width: 22ch;
}
.section-header p {
  font-size: var(--text-md);
  color: var(--color-text-muted);
  margin: 0;
}

/* ===== Contact CTA ===== */
.contact-cta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: var(--space-7) 0;
  border-top: 1px solid var(--color-border);
  min-height: clamp(440px, 52vw, 640px);
  display: flex;
  align-items: center;
}
.contact-cta-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.contact-cta-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(15, 30, 45, 0.10) 0%, rgba(15, 30, 45, 0.25) 100%);
  pointer-events: none;
}
.contact-cta-bg picture { display: block; width: 100%; height: 100%; }
.contact-cta-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.contact-cta .container { width: 100%; }
.contact-cta-panel {
  background: rgba(15, 30, 45, 0.18);
  border: 0.5px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  box-shadow: var(--shadow-on-image);
  color: var(--color-fog);
  max-width: 480px;
  padding: var(--space-5);
}
.contact-cta-panel .eyebrow {
  color: rgba(244, 246, 249, 0.7);
  margin-bottom: var(--space-3);
}
.contact-cta-panel h2 {
  color: var(--color-fog);
  margin: 0 0 var(--space-3);
}
.contact-cta-panel > p {
  font-size: var(--text-md);
  line-height: var(--leading-normal);
  color: rgba(244, 246, 249, 0.82);
  margin: 0 0 var(--space-5);
}
.contact-cta-channels {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}
.contact-channel {
  display: block;
  color: var(--color-fog);
  transition: color var(--duration-base) var(--ease-out);
}
.contact-channel:hover { color: var(--color-beacon); }
.contact-channel-label {
  display: block;
  font-family: var(--font-serif);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: rgba(244, 246, 249, 0.6);
  margin-bottom: var(--space-1);
}
.contact-channel-value {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  line-height: var(--leading-tight);
  word-break: break-word;
}
.contact-channel--icon {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
}
.contact-channel-icons {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--space-3);
}
.contact-channel--icon {
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
}
.contact-channel-icon {
  width: 100%;
  height: 100%;
  fill: currentColor;
}
@media (max-width: 720px) {
  .contact-cta { padding: var(--space-6) 0; min-height: clamp(480px, 95vw, 640px); }
  .contact-cta-panel { max-width: none; }
}

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-5) 0;
  background: var(--color-bg);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.site-footer .container { padding-bottom: 0; }
.footer-bottom {
  border-top: 0.5px solid var(--color-border);
  padding-top: var(--space-3);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
  font-family: var(--font-mono);
}

/* ===== Bullet list ===== */
.bullet-list { list-style: none; padding: 0; }
.bullet-list li {
  font-size: var(--text-base);
  color: var(--color-text);
  padding: 6px 0 6px 18px;
  position: relative;
  line-height: var(--leading-snug);
}
.bullet-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 1px;
  background: var(--color-text-muted);
}

.team-member h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-1);
  line-height: var(--leading-snug);
}
.team-member .role {
  font-family: var(--font-serif);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  display: block;
  margin-bottom: var(--space-2);
}
.team-member p { font-size: 15px; color: var(--color-text-muted); margin: 0; max-width: 36ch; }
.linkedin-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  margin-left: 0.1em;
  width: 32px;
  height: 32px;
  color: var(--color-text-muted);
  opacity: 0.5;
  transition: opacity 0.15s;
}
.linkedin-link:hover { opacity: 1; }
.linkedin-icon { width: 0.75em; height: 0.75em; fill: currentColor; }

/* ===== Founder intro: panel + team cards (compact) ===== */
.founder-intro .about-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
  margin-bottom: var(--space-5);
}
.founder-intro .about-header .section-header {
  margin-bottom: 0;
  max-width: none;
}
.founder-intro .about-header .section-header p {
  max-width: 30rem;
}
.founder-intro .about-plate {
  margin: 0;
}
.founder-intro .about-header .about-plate {
  max-width: 75%;
  margin-left: auto;
  /* Offset the frame so the image (not the frame) aligns with the lead paragraph.
     = eyebrow line height + its bottom margin - the frame's top padding */
  margin-top: calc(var(--text-xs) * var(--leading-normal) + var(--space-2) - var(--space-3));
}
@media (max-width: 720px) {
  .founder-intro .about-header {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-4);
  }
  .founder-intro .about-header .about-plate {
    max-width: 100%;
    margin: 0;
  }
}
.founder-intro .about-plate picture {
  display: block;
  padding: var(--space-3);
  background: var(--color-fog);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.founder-intro .about-plate img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-md) - 4px);
  filter: saturate(0.45) contrast(0.94) sepia(0.28);
}
@media (max-width: 720px) {
  /* Lighter treatment so the small mobile map doesn't disappear into the page bg. */
  .founder-intro .about-plate img {
    filter: saturate(0.7) contrast(1) sepia(0.15);
  }
}

.founder-intro .intro-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.founder-intro .intro-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 0;
  align-items: stretch;
}
.founder-intro .intro-card,
.founder-intro .team-member {
  background: var(--gradient-card);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition:
    border-color var(--duration-base) var(--ease-out-soft),
    box-shadow var(--duration-base) var(--ease-out-soft),
    transform var(--duration-base) var(--ease-out-soft),
    background var(--duration-base) var(--ease-out-soft);
}
.founder-intro .intro-card:hover,
.founder-intro .team-member:hover {
  border-color: var(--color-border-hover);
  background: var(--gradient-card-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.founder-intro .intro-label {
  font-family: var(--font-serif);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.founder-intro .intro-card h2 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.5rem);
  margin-bottom: var(--space-3);
  line-height: var(--leading-snug);
}
.founder-intro .intro-card p {
  font-size: 15px;
  color: var(--color-text-muted);
  margin: 0;
  max-width: none;
}
.founder-intro .team-member p { max-width: none; }
@media (max-width: 900px) {
  .founder-intro .intro-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-3);
  }
}

/* ===== Services homepage panels ===== */
.services-panel-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.service-panel {
  background: var(--gradient-card);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition:
    border-color var(--duration-base) var(--ease-out-soft),
    box-shadow var(--duration-base) var(--ease-out-soft),
    transform var(--duration-base) var(--ease-out-soft),
    background var(--duration-base) var(--ease-out-soft);
  display: flex;
  flex-direction: column;
}
.service-panel:hover {
  border-color: var(--color-border-hover);
  background: var(--gradient-card-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.service-panel-label {
  font-family: var(--font-serif);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.service-panel h3 {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-3);
}
.service-panel > p {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.service-panel h4 {
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-4);
}
.service-panel .bullet-list { font-size: 14px; margin: 0; }
.process-price {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  margin: 0;
}
@media (max-width: 900px) {
  .services-panel-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-3);
  }
}

/* ===== Responsive ===== */
/* Header: scale logo down a step earlier so nav fits on iPad-portrait without wrapping. */
@media (max-width: 900px) {
  .site-logo img { height: 56px; }
  .site-nav-links { gap: var(--space-4); }
}
@media (max-width: 720px) {
  section { padding: var(--space-5) 0; }
  .hero { padding-top: var(--space-6); padding-bottom: var(--space-6); }
  .container { padding-left: var(--space-3); padding-right: var(--space-3); }
  .site-logo img { height: 48px; }
}
@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .site-nav-links {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(244, 246, 249, 0.98);
    backdrop-filter: saturate(1.5) blur(12px);
    -webkit-backdrop-filter: saturate(1.5) blur(12px);
    border: 0.5px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: var(--space-2);
    min-width: 200px;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity var(--duration-base) var(--ease-out),
                transform var(--duration-base) var(--ease-out),
                visibility 0s linear var(--duration-base);
  }
  .site-nav-links[data-open="true"] {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
    transition: opacity var(--duration-base) var(--ease-out),
                transform var(--duration-base) var(--ease-out);
  }
  .site-nav-links li { width: 100%; }
  .site-nav-links a {
    display: block;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-base);
    border-radius: var(--radius-sm);
  }
  .site-nav-links a:hover,
  .site-nav-links a:focus-visible {
    background: rgba(31, 58, 82, 0.06);
    color: var(--color-text);
  }
  /* No-JS fallback: burger can't toggle, so show the links inline instead. */
  html:not(.js) .nav-toggle { display: none; }
  html:not(.js) .site-nav-links {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    visibility: visible;
    opacity: 1;
    transform: none;
    background: none;
    border: none;
    box-shadow: none;
    padding: 0;
    min-width: 0;
    gap: var(--space-3);
  }
  html:not(.js) .site-nav-links a { padding: 0; font-size: var(--text-sm); }
}
@media (max-width: 540px) {
  /* Hero panel padding tightens on small screens so the lighthouse peeks through. */
  .hero-panel { padding: var(--space-4); }
}

/* ===== Utility ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: absolute;
  left: var(--space-3);
  top: var(--space-3);
  transform: translateY(calc(-100% - var(--space-3)));
  z-index: 100;
  background: var(--color-slate);
  color: var(--color-fog);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: transform var(--duration-base) var(--ease-out);
}
.skip-link:focus {
  transform: translateY(0);
  color: var(--color-fog);
  outline: 2px solid var(--color-beacon);
  outline-offset: 2px;
}

/* ===== Scroll-triggered reveal ===== */
/* Only apply when JS is active so non-JS visitors don't see blank content. */
.js .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--duration-slow) var(--ease-out-soft),
              transform var(--duration-slow) var(--ease-out-soft);
  will-change: opacity, transform;
}
.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}
/* Subtle stagger for siblings inside the same grid container. */
.js .services-panel-grid .reveal:nth-child(2),
.js .intro-grid .reveal:nth-child(2) { transition-delay: 80ms; }
.js .services-panel-grid .reveal:nth-child(3),
.js .intro-grid .reveal:nth-child(3) { transition-delay: 160ms; }

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}