/* ============================================================
   ASTTERO — components.css
   Shared component styles for all pages.
   Version 1.0 — May 2026

   DEPENDS ON: /design-system/tokens.css (must be linked first)

   USAGE
   ─────
   <link rel="stylesheet" href="/design-system/tokens.css">
   <link rel="stylesheet" href="/css/components.css">

   SECTIONS
   ────────
   1.  Accessibility utilities
   2.  Wordmark
   3.  Nav pill
   4.  Watermark A
   5.  Section header pattern (eyebrow + headline)
   6.  Buttons
   7.  Metrics bar
   8.  Partners scroll bar
   9.  Services accordion
   10. Why blocks
   11. Case tile grid
   12. Contact form
   13. Footer
   14. Utility classes
   ============================================================ */


/* ══════════════════════════════════════════
   1. ACCESSIBILITY UTILITIES
   ══════════════════════════════════════════ */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--page-pad-x);
  padding: var(--space-2) var(--space-6);
  background: var(--color-bg);
  color: var(--color-text);
  font: var(--type-body);
  border: var(--border-1);
  border-radius: var(--radius-sm);
  z-index: calc(var(--z-overlay) + 1);
  transition: top var(--duration-fast) var(--ease-out);
}
.skip-link:focus { top: var(--space-4); }

.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;
}


/* ══════════════════════════════════════════
   2. WORDMARK
   ══════════════════════════════════════════ */

.nav-wordmark {
  position: fixed;
  left: var(--page-pad-x);
  top: 26px;
  z-index: var(--z-wordmark);
  mix-blend-mode: difference;
  pointer-events: auto;
  text-decoration: none;
}

.nav-wordmark img {
  height: 32px;
  width: auto;
  display: block;
  filter: invert(1);          /* inverts with mix-blend-mode: difference */
  user-select: none;
}


/* ══════════════════════════════════════════
   3. NAV PILL
   The pill uses a JS-driven SVG clip-path
   that morphs to reveal a dropdown tab.
   CSS here covers static styles only;
   the shape animation lives in js/nav.js.
   ══════════════════════════════════════════ */

/* Nav component tokens */
:root {
  --pill-w:       988px;
  --pill-h:        50px;
  --pill-pad-x:    32px;
  --tab-w:        220px;
  --tab-drop:     164px;
  --pill-top:      17px;
}

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: var(--z-nav);
  pointer-events: none;         /* clicks pass through except children */
}

.nav-pill-wrap {
  position: absolute;
  right: 40px;
  top: var(--pill-top);
  width: var(--pill-w);
  max-width: calc(100vw - 240px);
  height: var(--pill-h);
  z-index: var(--z-sticky);
  overflow: visible;
  pointer-events: auto;
}

/* Glass fill — clipped to SVG path by JS */
.nav-glass {
  position: absolute;
  left: 0; top: 0;
  width: var(--pill-w);
  height: calc(var(--pill-h) + var(--tab-drop));
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  clip-path: url(#navClip);
  -webkit-clip-path: url(#navClip);
  transform: translateZ(0);
  will-change: clip-path;
  backface-visibility: hidden;
}

/* Pastel radial shimmer inside glass */
.nav-glass::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 250px 180px at 15% 30%, rgba(255,194,209,0.55), transparent 60%),
    radial-gradient(ellipse 220px 160px at 50% 70%, rgba(224,200,240,0.50), transparent 60%),
    radial-gradient(ellipse 280px 200px at 85% 30%, rgba(253,229,200,0.55), transparent 60%),
    radial-gradient(ellipse 160px 140px at 10% 85%, rgba(255,194,209,0.50), transparent 60%);
  mix-blend-mode: screen;
  opacity: 0.35;
  pointer-events: none;
}

/* SVG outline + drop-shadow — drawn by JS */
.nav-outline {
  position: absolute;
  left: 0; top: 0;
  width: var(--pill-w);
  height: calc(var(--pill-h) + var(--tab-drop));
  pointer-events: none;
  filter: var(--shadow-nav-outline);
  display: none; /* Avoid SVG stroke/compositing seam inside the open glass tab. */
}
.nav-outline path {
  fill: transparent;
  stroke: var(--glass-border);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

/* Content layer */
.nav-content {
  position: relative;
  z-index: var(--z-sticky);
  width: 100%;
  height: var(--pill-h);
}

.nav-row {
  position: relative;
  height: var(--pill-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--pill-pad-x);
}

/* Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  flex: 1;
  min-width: 0;
}

.nav-links > a,
.nav-trigger {
  font-size: var(--text-nav);
  font-weight: var(--weight-regular);
  font-family: var(--font-sans);
  color: var(--color-text-nav);
  text-decoration: none;
  cursor: pointer;
  background: transparent;
  border: none;
  padding: 0;
  line-height: var(--leading-ui);
  white-space: nowrap;
  transition: var(--transition-color);
}

.nav-links > a:hover,
.nav-trigger:hover,
.nav-trigger.open {
  color: var(--color-text);
}

/* Dropdown trigger */
.nav-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-trigger .chev {
  width: 7px; height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform var(--duration-nav) var(--ease-nav-item);
}

.nav-trigger.open .chev {
  transform: rotate(-135deg) translate(-1px, -1px);
}

/* CTAs */
.nav-ctas {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-shrink: 0;
}

.nav-ctas a {
  font-size: var(--text-nav);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
}

.nav-lang {
  display: none;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  color: var(--color-text-nav);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: var(--weight-regular);
  line-height: 1;
  margin: 0 10px 0 20px;
  white-space: nowrap;
}

/* Temporarily hidden until language variants are ready. Keep markup for future re-enable. */
.nav-lang,
.nav-overlay-lang {
  display: none !important;
}

.nav-lang-opt {
  appearance: none;
  border: 0;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
  color: inherit;
  cursor: default;
  font: inherit;
  line-height: inherit;
  margin: 0;
  min-height: 0;
  padding: 0;
  opacity: 0.52;
}

.nav-lang-opt[data-active="true"] {
  color: var(--color-text);
  font-weight: var(--weight-bold);
  opacity: 1;
}

.nav-lang-opt:focus-visible {
  outline: 1px solid currentColor;
  outline-offset: 4px;
  border-radius: 999px;
}

.nav-lang-sep {
  color: rgba(26, 26, 24, 0.27);
  margin: 0 5px;
  pointer-events: none;
}

.nav-cta-divider {
  width: 1px;
  height: 20px;
  background: rgba(26, 26, 24, 0.27);
  flex-shrink: 0;
}

/* Dropdown panel */
.nav-dropdown {
  position: absolute;
  top: var(--pill-h);
  left: 0;
  width: var(--tab-w);
  padding: var(--space-4) var(--pill-pad-x) var(--space-5);
  pointer-events: none;
  overflow: visible;
  border-bottom-left-radius: 24px;
  border-bottom-right-radius: 24px;
}

/* Subtle mask over the dropdown content area. This prevents the glass
   backdrop from sampling high-contrast page text/dividers underneath and
   creating a visible horizontal band, without changing the clipped nav shape. */
.nav-dropdown > ul {
  position: relative;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav-dropdown > ul > li {
  position: relative;
}

.nav-dropdown-item--has-sub::after {
  content: '';
  position: absolute;
  top: calc(-1 * var(--space-3));
  right: calc(-1 * var(--space-5));
  width: var(--space-5);
  height: calc(100% + (2 * var(--space-3)));
}

.nav-dropdown > ul > li > a {
  display: flex;
  align-items: center;
  height: 28px;
  padding: 0 var(--space-3);
  margin-left: calc(-1 * var(--space-3));
  border-radius: var(--radius-sm);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-regular);
  color: var(--color-text-nav);
  text-decoration: none;
  width: max-content;
  opacity: 0;
  transform: none;
  will-change: opacity;
  transition:
    opacity  var(--duration-nav) var(--ease-nav-item),
    background var(--duration-fast) var(--ease-out),
    color    var(--duration-fast) var(--ease-out);
}

.nav-dropdown > ul > li > a:hover,
.nav-dropdown > ul > li:focus-within > a {
  background: transparent;
  color: var(--color-text);
}

.nav-dropdown-link--has-sub {
  justify-content: space-between;
  gap: var(--space-3);
  width: calc(var(--tab-w) - (2 * var(--space-6)));
}

.nav-dropdown-arrow {
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(-45deg);
  opacity: 0.7;
  flex: 0 0 auto;
}

.nav-dropdown .nav-submenu {
  position: absolute;
  left: calc(100% + var(--space-2));
  top: calc(-1 * var(--space-3));
  min-width: 270px;
  padding: var(--space-3) !important;
  list-style: none;
  border-radius: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-nav-outline);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
  transform: translateX(-8px);
  transition:
    opacity var(--duration-nav) var(--ease-nav-item),
    visibility var(--duration-nav) var(--ease-nav-item),
    transform var(--duration-nav) var(--ease-nav-item);
  z-index: calc(var(--z-sticky) + 1);
}

.nav-dropdown .nav-submenu::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(-1 * var(--space-4));
  width: var(--space-4);
}

.nav-dropdown .nav-submenu li + li { margin-top: var(--space-1) !important; }

.nav-dropdown .nav-submenu a {
  display: flex;
  align-items: center;
  min-height: 28px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-text-nav);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-regular);
  line-height: var(--leading-ui);
  text-decoration: none;
  white-space: nowrap;
  transition:
    background var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.nav-dropdown .nav-submenu a:hover,
.nav-dropdown .nav-submenu a:focus-visible {
  background: rgba(255, 255, 255, 0.34);
  color: var(--color-text);
}

.nav-dropdown-item--has-sub:hover > .nav-submenu,
.nav-dropdown-item--has-sub:focus-within > .nav-submenu {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
  transform: translateX(0);
}

/* Open state */
.nav-pill-wrap.open .nav-dropdown { pointer-events: auto; }
.nav-pill-wrap.open .nav-dropdown > ul > li > a { opacity: 1; transform: none; }
.nav-pill-wrap.open .nav-dropdown > ul > li:nth-child(1) > a { transition-delay: 0.15s, 0s, 0s; }
.nav-pill-wrap.open .nav-dropdown > ul > li:nth-child(2) > a { transition-delay: 0.20s, 0s, 0s; }
.nav-pill-wrap.open .nav-dropdown > ul > li:nth-child(3) > a { transition-delay: 0.25s, 0s, 0s; }
.nav-pill-wrap.open .nav-dropdown > ul > li:nth-child(4) > a { transition-delay: 0.30s, 0s, 0s; }


/* ══════════════════════════════════════════
   4. WATERMARK A
   Large decorative lettermark — positioned
   absolutely within a position:relative section.
   Size and position are set per-section
   via inline style or a modifier class.
   ══════════════════════════════════════════ */

.watermark-a {
  position: absolute;
  pointer-events: none;
  user-select: none;
  z-index: var(--z-watermark);
}
.watermark-a svg { width: 100%; height: 100%; display: block; }

/* Opacity variants */
.watermark-a--hero    { opacity: var(--wm-opacity-hero); }    /* 0.85 — large hero */
.watermark-a--section { opacity: var(--wm-opacity-section); } /* 0.28 — background */


/* ══════════════════════════════════════════
   5. SECTION HEADER PATTERN
   Eyebrow label + display headline + optional lead.
   Used in: Why, Contact, Cases, sub-pages.
   ══════════════════════════════════════════ */

.section-eyebrow {
  font: var(--type-eyebrow);
  letter-spacing: var(--tracking-wide-lg);
  color: var(--color-text-muted);
  text-transform: uppercase;
  display: block;
}

/* On dark backgrounds */
.section-eyebrow--dark { color: var(--color-text-muted); }

/* Display headline — shared across all sections */
.section-headline {
  font-size: var(--text-display);
  font-weight: var(--weight-light);
  letter-spacing: var(--tracking-tight-xl);
  line-height: var(--leading-display);
  color: var(--color-text);
  max-width: 100%;
}

.section-headline--dark { color: var(--color-text-inverse); }

/* Lead paragraph below headline */
.section-lead {
  font: var(--type-body-lg);
  color: var(--color-text-secondary);
  max-width: var(--max-width-copy);
}

.section-lead--dark { color: var(--color-text-muted); }


/* ══════════════════════════════════════════
   6. BUTTONS
   Three variants:
   .btn-glass   — frosted glass pill (primary CTA)
   .btn-dark    — solid dark pill (on white bg)
   .btn-link    — inline underline link CTA
   ══════════════════════════════════════════ */

/* Shared pill base */
.btn-glass,
.btn-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 0 var(--space-8);
  height: 50px;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: var(--text-nav);
  font-weight: var(--weight-regular);
  line-height: var(--leading-ui);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--transition-hover);
  text-decoration: none;
  white-space: nowrap;
}

.btn-glass:hover,
.btn-dark:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* Glass variant */
.btn-glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow), var(--glass-highlight);
  color: var(--color-text);
  width: fit-content;
  align-self: flex-start;
}

/* Oilspill shimmer overlay on glass */
.btn-glass::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-oilspill);
  opacity: var(--glass-shimmer-opacity);
  mix-blend-mode: screen;
  border-radius: inherit;
  pointer-events: none;
}

/* Dark variant */
.btn-dark {
  background: var(--color-bg-dark);
  border: none;
  color: var(--color-text-inverse);
}

/* Glass btn specifically for use on dark/photo tiles */
.btn-glass--on-dark {
  background: rgba(255, 255, 255, 0.094);
  border-color: rgba(255, 255, 255, 0.33);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-text-inverse);
  box-shadow: none;
  font-size: var(--text-nav);
  font-weight: var(--weight-regular);
  line-height: var(--leading-ui);
  height: 50px;
  padding: 0 var(--space-8);
}

.btn-glass--on-dark::before {
  /* No oilspill on dark-tile glass buttons */
  display: none;
}

/* Inline link CTA — underline style */
.btn-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-regular);
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
  cursor: pointer;
  transition: opacity var(--duration-hover) var(--ease-out);
  width: fit-content;
}

.btn-link:hover { opacity: 0.6; }

.btn-link--dark {
  color: var(--color-text-inverse);
  border-bottom-color: rgba(255, 255, 255, 0.4);
}
.btn-link--dark:hover { border-bottom-color: var(--color-text-inverse); opacity: 1; }


/* ══════════════════════════════════════════
   7. METRICS BAR
   Dark full-width band with 3 metrics.
   Animated on scroll via js/scroll-animations.js.
   ══════════════════════════════════════════ */

.metrics-bar {
  background: var(--color-bg-dark);
  height: 96px;
  display: flex;
  align-items: center;
  padding: 0 var(--page-pad-x);
}

.metrics-inner {
  display: flex;
  align-items: center;
  width: 100%;
}

.metric {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: var(--space-3);
  padding: 0 var(--space-8);
}

.metric-num {
  font: var(--type-metric);
  letter-spacing: var(--tracking-tight-md);
  color: var(--color-text-inverse);
}

.metric-label {
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-regular);
  letter-spacing: var(--tracking-wide-md);
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.metric-div {
  width: 1px;
  height: 32px;
  background: var(--primitive-dark-2);
  flex-shrink: 0;
}

/* Scroll-triggered animation */
.metric-arrow {
  color: var(--color-text-muted);
  display: inline-block;
}

.metric-arrow.ping {
  animation: arrowPing 0.7s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

@keyframes arrowPing {
  0%   { color: var(--color-text-muted); transform: translateX(0); }
  35%  { color: var(--color-text-inverse); transform: translateX(5px); }
  65%  { color: var(--color-text-inverse); transform: translateX(-2px); }
  100% { color: var(--color-text-muted); transform: translateX(0); }
}

.count-from,
.count-to,
.metric-minus {
  display: inline-block;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--duration-count) var(--ease-out),
              transform var(--duration-count) var(--ease-out);
}

.metrics-bar.animated .count-from,
.metrics-bar.animated .count-to,
.metrics-bar.animated .metric-minus {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger per metric (nth-child targets metric divs too, so use odd) */
.metrics-bar.animated .metric:nth-child(1) .count-from { transition-delay: 0.00s; }
.metrics-bar.animated .metric:nth-child(1) .count-to   { transition-delay: 0.10s; }
.metrics-bar.animated .metric:nth-child(3) .count-from { transition-delay: 0.15s; }
.metrics-bar.animated .metric:nth-child(3) .count-to   { transition-delay: 0.25s; }
.metrics-bar.animated .metric:nth-child(5) .metric-minus { transition-delay: 0.30s; }
.metrics-bar.animated .metric:nth-child(5) .count-to   { transition-delay: 0.30s; }


/* ══════════════════════════════════════════
   8. PARTNERS SCROLL BAR
   Infinite horizontal marquee of technology logos.
   ══════════════════════════════════════════ */

.partners-bar {
  background: var(--color-bg);
  padding: var(--space-10) 0 44px;
  overflow: hidden;
  border-top: var(--border-1);
}

.partners-label {
  display: block;
  text-align: center;
  font: var(--type-eyebrow);
  letter-spacing: var(--tracking-wide-lg);
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-bottom: var(--space-7);
}

.partners-track-wrap {
  width: 100%;
  overflow: hidden;
}

.partners-track {
  display: flex;
  align-items: center;
  gap: var(--space-13);
  width: max-content;
  animation: partners-scroll 22s linear infinite;
}

/* Pause on hover */
.partners-track-wrap:hover .partners-track { animation-play-state: paused; }

.partner-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 150px;
  height: 52px;
  flex: 0 0 auto;
  user-select: none;
  cursor: default;
}

.partner-logo img {
  display: block;
  max-width: 100%;
  max-height: 42px;
  object-fit: contain;
  filter: grayscale(1) saturate(0) contrast(0.9);
  opacity: 0.68;
}

@keyframes partners-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-25%); }
}


/* ══════════════════════════════════════════
   9. SERVICES ACCORDION
   Dark 2-column layout. Left: title + body copy.
   Right: animated accordion with scale-from-center
   numbers and labels.
   JS: js/accordion.js
   ══════════════════════════════════════════ */

/* @property for animatable custom property */
@property --svc-size-s {
  syntax: '<number>';
  inherits: false;
  initial-value: 1;
}

.svc-acc-wrap { background: var(--color-bg-dark); }

.svc-acc {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-13);
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-15) var(--space-12) 160px;
  color: var(--color-text-inverse);
}

/* Left column */
.svc-acc-left {
  min-height: 670px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.svc-acc-eyebrow {
  font-size: 20px;
  font-weight: var(--weight-light);
  color: rgba(255, 255, 255, 0.6);
  max-width: 420px;
  line-height: var(--leading-heading);
  letter-spacing: -0.005em;
}

.svc-acc-bottom { max-width: 520px; }

.svc-acc-title {
  font-size: var(--text-display);
  font-weight: var(--weight-regular);
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 0 0 var(--space-8);
  color: var(--color-text-inverse);
}

.svc-acc-body p {
  font: var(--type-body);
  line-height: var(--leading-body);
  margin: 0 0 var(--space-4);
  max-width: var(--max-width-narrow);
  color: var(--color-text-inverse);
}

/* Inline link — white with fading underline */
.svc-acc-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  color: var(--color-text-inverse);
  text-decoration: none;
  font-size: var(--text-body-xs);
  font-weight: var(--weight-medium);
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  padding-bottom: var(--space-1);
  transition: border-color var(--duration-hover) var(--ease-out);
}

.svc-acc-link:hover { border-bottom-color: var(--color-text-inverse); }

.svc-acc-arrow {
  display: inline-block;
  transition: transform var(--duration-hover) var(--ease-out);
}
.svc-acc-link:hover .svc-acc-arrow { transform: translateX(3px); }

/* Right column — accordion container */
.svc-acc-accordion {
  position: relative;
  height: 760px;
}

/* Each accordion item — absolutely positioned by JS */
.svc-acc-item {
  position: absolute;
  background: transparent;
  overflow: hidden;
  height: 75px;
  transition:
    left   var(--duration-scroll) var(--ease-accordion),
    top    var(--duration-scroll) var(--ease-accordion),
    width  var(--duration-scroll) var(--ease-accordion),
    height var(--duration-scroll) var(--ease-accordion);
}

/* Top / bottom border lines */
.svc-acc-item::before {
  content: '';
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 1px;
  background: var(--color-border-dark);
}
.svc-acc-item:last-child::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--color-border-dark);
}
.svc-acc-item.is-open:last-child::after  { opacity: 0; }
.svc-acc-item.is-open:first-child::before { opacity: 0; }

/* Row: num | rule | label */
.svc-acc-row {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  display: grid;
  grid-template-columns: 100px 1px 1fr;
  column-gap: var(--space-6);
  align-items: center;
  width: 100%;
  height: 75px;
  padding: 0 var(--space-10);
  font: inherit;
  text-align: left;
  transition: height var(--duration-scroll) var(--ease-accordion);
}

.svc-acc-row:focus-visible {
  outline: 1px solid rgba(255, 255, 255, 0.72);
  outline-offset: -1px;
}

.svc-acc-item.is-open            { height: 260px; }
.svc-acc-item.is-open .svc-acc-row { height: 140px; }

/* Number — scales from 0.52 to 1 */
.svc-acc-num {
  font-weight: var(--weight-thin);
  color: rgba(255, 255, 255, 0.35);
  font-size: 100px;
  line-height: 0;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  justify-self: end;
  --svc-size-s: 0.52;
  transform: scale(var(--svc-size-s));
  transform-origin: right center;
  transition:
    --svc-size-s var(--duration-scroll) var(--ease-accordion),
    color        var(--duration-scroll) var(--ease-accordion);
}
.svc-acc-item.is-open .svc-acc-num {
  --svc-size-s: 1;
  color: rgba(255, 255, 255, 0.6);
}

/* Vertical rule between num and label */
.svc-acc-vrule {
  width: 1px;
  height: 28px;
  background: var(--color-border-dark-mid);
  opacity: 0;
  transform: scaleY(0.6);
  transition:
    opacity   var(--duration-scroll) var(--ease-accordion),
    transform var(--duration-scroll) var(--ease-accordion);
}
.svc-acc-item.is-open .svc-acc-vrule { opacity: 1; transform: scaleY(1); }

/* Label — scales from 0.267 to 1 */
.svc-acc-label {
  font-weight: var(--weight-semibold);
  color: rgba(255, 255, 255, 0.65);
  font-size: 60px;
  line-height: 0;
  letter-spacing: -0.025em;
  --svc-size-s: 0.2667;
  transform: scale(var(--svc-size-s));
  transform-origin: left center;
  transition:
    --svc-size-s var(--duration-scroll) var(--ease-accordion),
    color        var(--duration-scroll) var(--ease-accordion);
}
.svc-acc-item.is-open .svc-acc-label {
  --svc-size-s: 1;
  color: var(--color-text-inverse);
}

.svc-acc-body-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  margin-top: 2px;
  color: currentColor;
  text-decoration: none;
  font-size: 18px;
  line-height: 1;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition:
    opacity var(--duration-scroll) var(--ease-accordion),
    transform var(--duration-scroll) var(--ease-accordion);
}

.svc-acc-body-link span {
  display: block;
  line-height: 1;
}

.svc-acc-item.is-open .svc-acc-body-link {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.svc-acc-body-link:hover,
.svc-acc-body-link:focus-visible {
  opacity: 0.72;
  outline: none;
}

/* Body text — fades in after accordion opens */
.svc-acc-body-text {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity   0.12s var(--ease-accordion),
    transform var(--duration-scroll) var(--ease-accordion);
  padding-left: calc(var(--space-10) + 100px + var(--space-6) + 1px + var(--space-6));
  padding-right: var(--space-10);
  padding-bottom: var(--space-9);
  pointer-events: none;
  display: flex;
  align-items: flex-end;
  gap: var(--space-7);
}
.svc-acc-item.is-open .svc-acc-body-text {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity   var(--duration-scroll) var(--ease-accordion) 0.15s,
    transform var(--duration-scroll) var(--ease-accordion) 0.15s;
  pointer-events: auto;
}
.svc-acc-body-text p {
  font: var(--type-body);
  line-height: var(--leading-body-lg);
  color: var(--color-text-inverse);
  margin: 0;
  max-width: var(--max-width-narrow);
}


/* ══════════════════════════════════════════
   10. WHY BLOCKS
   Alternating visual + text rows.
   Stars exit via scroll animation in js/scroll-animations.js.
   ══════════════════════════════════════════ */

.why {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
  padding: var(--section-pad-y) var(--page-pad-x) 0;
}

/* Background waveform SVG (animated by JS) */
.why-waveform {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: var(--z-watermark);
  pointer-events: none;
  opacity: 0;
  will-change: opacity;
}
.why-waveform svg  { width: 100%; height: 100%; display: block; }
.why-waveform path { fill: none; stroke-width: 1.6; }

.why-header {
  position: relative;
  z-index: var(--z-content);
  margin-bottom: var(--space-7);
}

.why-headline {
  position: relative;
  z-index: var(--z-content);
  font-size: var(--text-display);
  font-weight: var(--weight-light);
  letter-spacing: var(--tracking-tight-xl);
  line-height: var(--leading-display);
  color: var(--color-text);
  max-width: 100%;
  margin-bottom: var(--space-10);
}

.why-sub {
  position: relative;
  z-index: var(--z-content);
  font: var(--type-body-lg);
  color: var(--color-text-secondary);
  max-width: var(--max-width-copy);
  margin-left: 220px;
  margin-bottom: 220px;
}

.why-blocks {
  position: relative;
  z-index: var(--z-content);
}

/* Individual block row */
.why-block {
  display: flex;
  width: 100%;
  height: 500px;
  margin-bottom: 280px;
}
.why-block:last-child { margin-bottom: 0; }

/* Reversed layout */
.why-block.reverse { flex-direction: row-reverse; }

/* Visual column (stars / illustration) */
.block-visual {
  flex: 0 0 702px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.block-visual.right-side {
  justify-content: flex-start;
  padding-left: var(--space-15);
}

/* Text column */
.block-text {
  flex: 1;
  display: flex;
  align-items: center;
  padding: var(--space-10) var(--page-pad-x);
}

.why-block.reverse .block-text { justify-content: flex-end; }

.block-content {
  will-change: transform, opacity;
}

.why-block.reverse .block-content { text-align: right; }
.why-block.reverse .block-content p { margin-left: auto; }

.block-content h3 {
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight-sm);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.block-content p {
  font-size: 18px;
  font-weight: var(--weight-regular);
  color: var(--color-text);
  line-height: var(--leading-body);
  max-width: var(--max-width-body);
}

/* Star/asterisk visual motif */
.stars {
  display: flex;
  gap: var(--space-10);
  align-items: center;
}

.star-icon {
  width: 88px; height: 88px;
  flex-shrink: 0;
  will-change: transform, opacity;
}


/* ══════════════════════════════════════════
   11. CASE TILE GRID
   2×2 image grid with dark CTA tile.
   ══════════════════════════════════════════ */

.cases {
  background: var(--color-bg);
  padding-top: var(--page-pad-x);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.cases-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--page-pad-x);
  height: var(--page-pad-x);
}

.cases-label {
  font: var(--type-eyebrow);
  letter-spacing: var(--tracking-wide-lg);
  color: var(--color-text-subtle);
  text-transform: uppercase;
}

.cases-all {
  font-size: var(--text-body-xs);
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid rgba(26, 26, 24, 0.4);
  padding-bottom: var(--space-1);
  transition: opacity var(--duration-hover) var(--ease-out);
}
.cases-all:hover { opacity: 0.6; }

/* Tile rows */
.cases-row {
  display: flex;
  gap: var(--space-1);
  height: 480px;
}

/* Photo tile */
.case-tile {
  flex: 1;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.case-tile img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s var(--ease-out);
}

.case-tile:hover img { transform: scale(1.04); }

.case-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(0, 0, 0, 0.8) 100%);
  display: flex;
  align-items: flex-end;
  padding: 0 0 var(--space-10) var(--space-10);
}

.case-overlay .btn-glass {
  align-self: flex-end;
}

/* Dark CTA tile */
.case-p4 {
  flex: 1;
  background: var(--color-bg-dark);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-10);
  gap: var(--space-6);
  cursor: pointer;
}

.p4-label {
  font: var(--type-eyebrow);
  letter-spacing: var(--tracking-wide-lg);
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.p4-title {
  font-size: var(--text-h2);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight-md);
  line-height: var(--leading-heading);
  color: var(--color-text-inverse);
  max-width: var(--max-width-card);
}

/* Oilspill CTA button on dark tile */
.p4-btn {
  display: inline-flex;
  align-items: center;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  color: var(--color-text-inverse);
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.094);
  border: 1px solid rgba(255, 255, 255, 0.33);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  width: fit-content;
  cursor: pointer;
  transition: opacity var(--duration-hover) var(--ease-out);
}

.p4-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-oilspill);
  opacity: 0.22;
  mix-blend-mode: screen;
  pointer-events: none;
  border-radius: inherit;
}

.p4-btn:hover { opacity: 0.85; }


/* ══════════════════════════════════════════
   12. CONTACT FORM
   Right-aligned headline + underline form fields.
   ══════════════════════════════════════════ */

.contact {
  position: relative;
  overflow: hidden;
  background: var(--color-bg);
  padding: var(--space-12) var(--page-pad-x) var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

/* Right-aligned headline */
.ct-header {
  position: relative;
  z-index: var(--z-content);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-12);
  width: 100%;
}

.ct-title {
  text-align: right;
}

.ct-title h2 {
  font-size: var(--text-display);
  font-weight: var(--weight-light);
  letter-spacing: var(--tracking-tight-xl);
  line-height: var(--leading-display);
  color: var(--color-text);
  text-align: right;
}

.ct-subtitle {
  margin: var(--space-6) 0 0 auto;
  max-width: 520px;
  font: var(--type-body);
  color: var(--color-text-secondary);
  line-height: var(--leading-body);
  text-align: right;
}

/* Form body */
.ct-body {
  position: relative;
  z-index: var(--z-content);
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
  width: 100%;
}

.form-title {
  font-size: var(--text-h2);
  font-weight: var(--weight-light);
  letter-spacing: var(--tracking-tight-md);
  color: var(--color-text);
}

.form-row {
  display: flex;
  gap: var(--space-9);
  width: 100%;
}

.form-field {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Accessible label — must be a real <label> with for= */
.form-label {
  font: var(--type-form-label);
  letter-spacing: var(--tracking-wide-md);
  color: var(--color-text);
  text-transform: uppercase;
  cursor: pointer;
}

.form-line {
  height: 1px;
  background: var(--color-text);
}

.form-input,
.form-textarea {
  font-family: var(--font-sans);
  font-size: var(--text-body-xs);
  color: var(--color-text);
  background: transparent;
  border: none;
  outline: none;
  padding: var(--space-1) 0;
  line-height: var(--leading-body);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-subtle);
}

.form-textarea {
  resize: none;
  min-height: 60px;
  width: 100%;
}

.form-msg {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Privacy checkbox */
.privacy-check {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  font-size: var(--text-legal);
  color: var(--color-text-secondary);
  line-height: var(--leading-legal);
  min-height: 48px;
  margin-bottom: var(--space-4);
}

.privacy-check input[type="checkbox"] {
  margin: 0;
  flex-shrink: 0;
  width: 24px; height: 24px;
  min-width: 24px;
  min-height: 24px;
  accent-color: var(--color-text);
  cursor: pointer;
}

.privacy-check a {
  color: var(--color-text);
  text-decoration: underline;
}
.privacy-check a:hover { opacity: 0.6; }

/* Submit button — glass with pastel shimmer */
.btn-send {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-9);
  height: 50px;
  min-height: 50px;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: var(--text-nav);
  font-weight: var(--weight-regular);
  line-height: var(--leading-ui);
  color: var(--color-text);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
  transition: var(--transition-hover);
  width: fit-content;
}

.btn-send::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 250px 180px at 15% 30%, rgba(255, 194, 209, 0.55), transparent 60%),
    radial-gradient(ellipse 220px 160px at 50% 70%, rgba(224, 200, 240, 0.50), transparent 60%),
    radial-gradient(ellipse 280px 200px at 85% 30%, rgba(253, 229, 200, 0.55), transparent 60%),
    radial-gradient(ellipse 160px 140px at 10% 85%, rgba(255, 194, 209, 0.50), transparent 60%);
  mix-blend-mode: screen;
  opacity: 0.35;
  pointer-events: none;
}

.btn-send:hover { transform: translateY(-1px); opacity: 0.9; }

.btn-send span { position: relative; z-index: var(--z-content); }


/* ══════════════════════════════════════════
   13. FOOTER
   Left: wordmark + tagline + contact info.
   Right: nav columns (Nawigacja / Usługi / Social).
   Bottom bar: copyright + legal + partner badge.
   ══════════════════════════════════════════ */

footer {
  background: var(--color-bg);
  padding: var(--space-9) var(--page-pad-x) 0;
  position: relative;
}

.footer-main {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  gap: var(--footer-main-gap);
  padding-bottom: var(--space-9);
}

/* Left column */
.footer-left {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  width: 340px;
  flex-shrink: 0;
}

.footer-wordmark img {
  width: 174px;
  height: auto;
  display: block;
}

.footer-tagline {
  font-size: var(--text-body);
  font-weight: var(--weight-regular);
  color: var(--color-text);
  line-height: var(--leading-body);
  max-width: 280px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.footer-contact a,
.footer-contact span {
  font-size: var(--text-body-xs);
  color: var(--color-text);
  text-decoration: none;
  line-height: var(--leading-legal);
}

.footer-contact a:hover { opacity: 0.6; }

/* Right: nav columns */
.footer-cols {
  display: flex;
  gap: var(--footer-col-gap);
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-col-label {
  font: var(--type-form-label);
  letter-spacing: var(--tracking-wide-md);
  color: var(--color-text-subtle);
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}

.footer-col a {
  font-size: var(--text-body-xs);
  font-weight: var(--weight-regular);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: var(--transition-color);
  display: block;
}
.footer-col a:hover { color: var(--color-text); }

/* Divider */
.footer-divider {
  height: 1px;
  background: var(--color-border);
}

/* Bottom bar */
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0 var(--space-6);
}

.footer-copy {
  font: var(--type-legal);
  color: var(--color-text-subtle);
}

.footer-legal {
  display: flex;
  gap: var(--space-10);
}

.footer-legal a {
  font: var(--type-legal);
  color: var(--color-text-subtle);
  text-decoration: none;
  transition: var(--transition-color);
}
.footer-legal a:hover { color: var(--color-text-secondary); }

.footer-partner {
  font: var(--type-legal);
  color: var(--color-text-subtle);
}


/* ══════════════════════════════════════════
   14. UTILITY CLASSES
   ══════════════════════════════════════════ */

/* Section positioning */
.section-rel  { position: relative; overflow: hidden; }
.z-content    { position: relative; z-index: var(--z-content); }
.z-watermark  { position: absolute; z-index: var(--z-watermark); }

/* Dark section context */
.bg-dark      { background: var(--color-bg-dark); color: var(--color-text-inverse); }
.bg-light     { background: var(--color-bg); color: var(--color-text); }
.bg-alt       { background: var(--color-bg-alt); color: var(--color-text); }

/* Section padding helpers */
.pad-section  { padding: var(--section-pad-y) var(--page-pad-x); }
.pad-section-md { padding: var(--section-pad-y-md) var(--page-pad-x); }
.pad-section-sm { padding: var(--section-pad-y-sm) var(--page-pad-x); }
.pad-x        { padding-left: var(--page-pad-x); padding-right: var(--page-pad-x); }

/* Tile gap (4px — used between case tiles and feature cards) */
.gap-tile     { gap: var(--space-1); }


/* ══════════════════════════════════════════
   15. RESPONSIVE BREAKPOINTS
   Breakpoints:
   — 1200px: switch nav to hamburger / small desktop
   — 768px:  tablet / mobile layout

   Strategy: components reflow gracefully.
   No layout inversions — just column
   collapsing, type scaling, padding reduction.
   ══════════════════════════════════════════ */

/* ── 1320px — NARROW DESKTOP ──
   Keep the bespoke two-column accordion, but tighten its internal chrome so
   the longest active label does not clip just above the hamburger breakpoint. */
@media (min-width: 1201px) and (max-width: 1320px) {
  .svc-acc {
    gap: var(--space-10);
    padding-left: var(--space-10);
    padding-right: var(--space-10);
  }

  .svc-acc-row {
    grid-template-columns: 84px 1px minmax(0, 1fr);
    column-gap: var(--space-5);
    padding: 0 var(--space-8);
  }

  .svc-acc-body-text {
    padding-left: calc(var(--space-8) + 84px + var(--space-5) + 1px + var(--space-5));
    padding-right: var(--space-8);
  }
}

/* ── 1200px — LAPTOP ── */
@media (max-width: 1200px) {

  /* Nav — switch to hamburger before the pill can collide with the wordmark. */
  :root { --nav-height: 64px; }

  .nav-wordmark { left: var(--space-5); top: 16px; }
  .nav-wordmark img { height: 26px; }

  .nav-pill-wrap { display: none; }

  /* Nav pill — shrink width, tighten padding */
  :root {
    --pill-w: min(780px, calc(100vw - 260px));
    --pill-pad-x: 24px;
  }

  /* Shorten primary CTA + hide secondary at this width too */
  .nav-cta-divider,
  .nav-ctas a:last-child { display: none; }
  .nav-cta-primary { font-size: 0; }
  .nav-cta-primary::after {
    content: attr(data-short);
    font-size: var(--text-nav);
    font-weight: var(--weight-bold);
  }

  /* Metrics — tighten gap */
  .metrics-bar { padding: 0 var(--space-8); }
  .metric      { gap: var(--space-2); padding: 0 var(--space-5); }

  /* Services accordion — reduce padding, go single column earlier */
  .svc-acc {
    grid-template-columns: 1fr;
    gap: var(--space-10);
    padding: var(--space-11) var(--space-10) 120px;
  }

  .svc-acc-left { min-height: auto; }
  .svc-acc-title { font-size: clamp(48px, 6vw, 100px); }

  /* Scale label base font at mid-width so scaled result doesn't overflow */
  .svc-acc-label { font-size: clamp(40px, 4vw, 60px); }
  .svc-acc-num   { font-size: clamp(60px, 7vw, 100px); }

  /* Accordion label — allow full size in single column, prevent overflow */
  .svc-acc-accordion { height: auto; min-height: 400px; overflow: hidden; }

  /* Why blocks — reduce visual column */
  .block-visual { flex: 0 0 480px; }

  /* Cases — reduce tile height */
  .cases-row { height: 380px; }

  /* Contact headline */
  .ct-title h2 {
    font-size: clamp(56px, 6vw, 100px);
  }

  /* Footer — reduce gaps */
  :root {
    --footer-main-gap: var(--space-11);
    --footer-col-gap:  var(--space-10);
  }

  .footer-left { width: 280px; }
}

/* ── 1024px — IPAD PRO ── */
@media (max-width: 1024px) {
  :root {
    --pill-w: min(680px, calc(100vw - 260px));
    --pill-pad-x: 20px;
  }
  .nav-pill-wrap {
    max-width: calc(100vw - 260px);
  }
  /* Tighten nav link gap at this width */
  .nav-links { gap: var(--space-5); }
  .nav-ctas  { gap: var(--space-3); }
  /* Hide the secondary "Porozmawiajmy" CTA and its divider to save space */
  .nav-cta-divider,
  .nav-ctas a:last-child { display: none; }
  /* Shorten primary CTA label */
  .nav-cta-primary {
    font-size: 0;
  }
  .nav-cta-primary::after {
    content: attr(data-short);
    font-size: var(--text-nav);
    font-weight: var(--weight-bold);
  }
}


/* ── 768px — TABLET / MOBILE ── */
@media (max-width: 768px) {

  /* ── Nav — hide pill, show minimal fixed bar ── */
  :root { --nav-height: 64px; }

  .nav-wordmark { left: var(--space-5); top: 16px; }
  .nav-wordmark img { height: 26px; }

  /* Hide the pill nav entirely at mobile */
  .nav-pill-wrap { display: none; }

  /* Prevent horizontal scroll */
  body { overflow-x: hidden; }

  /* ── Metrics bar — stack vertically ── */
  .metrics-bar {
    height: auto;
    padding: var(--space-8) var(--space-5);
  }

  .metrics-inner {
    flex-direction: column;
    gap: var(--space-7);
    align-items: flex-start;
  }

  .metric {
    flex: none;
    width: 100%;
    justify-content: flex-start;
    gap: var(--space-2);
    padding: 0;
  }

  .metric-div { display: none; }

  /* ── Partners — tighter ── */
  .partners-bar { padding: var(--space-8) 0; }

  .partners-track { gap: var(--space-9); }

  .partner-logo {
    width: 124px;
    height: 46px;
  }

  .partner-logo img { max-height: 36px; }

  /* ── Services accordion — stack to single column ── */
  .svc-acc {
    grid-template-columns: 1fr;
    padding: var(--space-10) var(--space-5) var(--space-10);
    gap: var(--space-10);
  }

  .svc-acc-left { min-height: auto; }
  .svc-acc-title {
    font-size: clamp(36px, 10vw, 72px);
    line-height: 1.15;
  }

  /* Mobile accordion — flat layout, no absolute positioning or scale trick */
  .svc-acc-accordion {
    position: static;
    height: auto !important;
  }

  .svc-acc-item {
    position: static !important;
    left: auto !important;
    top: auto !important;
    width: 100% !important;
    height: auto !important;
    overflow: visible;
  }

  .svc-acc-row {
    grid-template-columns: 1fr;
    height: auto;
    padding: var(--space-6) 0;
    border-top: 1px solid var(--color-border-dark);
    display: block;
  }

  .svc-acc-num,
  .svc-acc-vrule { display: none; }

  .svc-acc-label {
    font-size: clamp(22px, 6vw, 32px);
    font-weight: var(--weight-semibold);
    color: rgba(255,255,255,0.65);
    transform: none !important;
    white-space: normal;
    letter-spacing: var(--tracking-tight-sm);
    line-height: var(--leading-subhead);
  }

  .svc-acc-body-link {
    font-size: 26px;
    margin-top: var(--space-3);
  }

  .svc-acc-item.is-open .svc-acc-label {
    color: var(--color-text-inverse);
  }

  .svc-acc-body-text {
    display: block;
    padding-left: 0;
    padding-right: 0;
    padding-bottom: var(--space-6);
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transform: none !important;
    transition: opacity 0.3s ease, max-height 0.3s ease;
  }

  .svc-acc-item.is-open .svc-acc-body-text {
    opacity: 1;
    max-height: 300px;
    transition: opacity 0.3s ease 0.1s, max-height 0.35s ease;
  }

  .svc-acc-item::before,
  .svc-acc-item:last-child::after {
    display: none;
  }
  /* ── Why blocks — stack single column ── */
  .why {
    padding: var(--space-10) var(--space-5) 0;
  }

  .why-headline {
    font-size: clamp(40px, 10vw, 72px);
    letter-spacing: -2px;
    line-height: 1.15;
  }

  .why-sub {
    margin-left: 0;
    margin-bottom: var(--space-10);
    font-size: var(--text-body);
  }

  .why-block {
    flex-direction: column !important;
    height: auto;
    margin-bottom: var(--space-10);
  }

  .block-visual {
    flex: none;
    width: 100%;
    height: 160px;
    padding-left: 0 !important;
    justify-content: flex-start !important;
  }

  .stars { gap: var(--space-6); }
  .star-icon { width: 56px; height: 56px; }

  .block-text {
    flex: none;
    width: 100%;
    padding: var(--space-6) 0;
  }

  .why-block.reverse .block-text { justify-content: flex-start; }
  .why-block.reverse .block-content { text-align: left; }
  .why-block.reverse .block-content p { margin-left: 0; }

  /* ── Cases — stack tiles ── */
  .cases { padding-top: var(--space-8); }

  .cases-header { padding: 0 var(--space-5); }

  .cases-row {
    flex-direction: column;
    height: auto;
  }

  .case-tile { height: 280px; }

  .case-p4 {
    height: auto;
    padding: var(--space-8) var(--space-5);
    min-height: 260px;
  }

  .p4-title { font-size: 24px; }

  /* ── Contact — stack form, scale headline ── */
  .contact {
    padding: var(--space-10) var(--space-5) var(--space-8);
    gap: var(--space-8);
  }

  .ct-title h2 {
    font-size: clamp(36px, 9vw, 64px);
    letter-spacing: -2px;
    line-height: 1.15;
  }

  .ct-subtitle {
    max-width: 100%;
    font-size: var(--text-body-sm);
  }

  .form-row {
    flex-direction: column;
    gap: var(--space-8);
  }

  /* ── Footer — stack everything ── */
  footer { padding: var(--space-8) var(--space-5) 0; }

  .footer-main {
    flex-direction: column;
    gap: var(--space-10);
  }

  .footer-left { width: 100%; }

  .footer-cols {
    flex-wrap: wrap;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-6) 0 var(--space-8);
  }

  .footer-legal { gap: var(--space-6); }
}


/* ══════════════════════════════════════════
   16. HAMBURGER MENU (≤1200px)
   Button always in DOM, hidden above 1200px.
   At narrow desktop/tablet/mobile: pill hidden, hamburger appears.
   Overlay covers full screen with stacked links.
   JS: js/nav.js (initHamburger function)
   ══════════════════════════════════════════ */

.nav-hamburger { display: none; }
.nav-overlay   { display: none; }

/* Overlay header (wordmark + close) */
.nav-overlay-header {
  display: none; /* shown inside media query */
}

/* Accordion trigger in overlay — resets button defaults */
.nav-overlay-acc-trigger {
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  width: 100%;
  text-align: left;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-sans);
}

/* Chevron inside accordion trigger */
.nav-overlay-chev {
  display: inline-block;
  width: 9px; height: 9px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.25s var(--ease-nav-item);
  flex-shrink: 0;
}
.nav-overlay-acc-trigger[aria-expanded="true"] .nav-overlay-chev {
  transform: rotate(-135deg) translate(-2px, -2px);
}

@media (max-width: 1200px) {

  .nav { pointer-events: none; }
  .nav-wordmark { pointer-events: auto; }

  /* Hamburger button */
  .nav-hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    position: fixed;
    top: 14px;
    right: auto;
    left: calc(100vw - 60px);
    left: calc(100dvw - 60px);
    width: 40px;
    height: 40px;
    z-index: var(--z-wordmark);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
  }

  .nav-hamburger-line {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--color-bg-dark);
    border-radius: 2px;
    transform-origin: center;
    transition:
      transform var(--duration-nav) var(--ease-nav-item),
      opacity   var(--duration-nav) var(--ease-nav-item);
  }

  /* X state */
  .nav-hamburger.is-open .nav-hamburger-line:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-hamburger.is-open .nav-hamburger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav-hamburger.is-open .nav-hamburger-line:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

  /* When overlay is open, lines go white */
  .nav-hamburger.is-open .nav-hamburger-line { background: var(--color-text-inverse); }
  /* Hide hamburger when overlay is open — overlay has its own close button */
  .nav-hamburger.is-open { opacity: 0; pointer-events: none; }

  /* Full-screen overlay */
  .nav-overlay {
    display: flex;
    position: fixed;
    inset: auto;
    top: 0;
    left: 0;
    right: auto;
    bottom: auto;
    width: 100vw;
    width: 100dvw;
    max-width: 100vw;
    max-width: 100dvw;
    min-height: 100vh;
    min-height: 100dvh;
    height: 100vh;
    height: 100dvh;
    background: var(--color-bg-dark);
    z-index: calc(var(--z-overlay) + 1);
    flex-direction: column;
    justify-content: flex-start;
    padding: 0 var(--space-8) var(--space-10);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition:
      opacity   var(--duration-nav) var(--ease-nav-item),
      transform var(--duration-nav) var(--ease-nav-item);
    overflow-y: auto;
  }

  .nav-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-overlay.is-open .nav-overlay-link,
  .nav-overlay.is-open .nav-overlay-sub a,
  .nav-overlay.is-open .nav-overlay-lang button,
  .nav-overlay.is-open .nav-overlay-cta,
  .nav-overlay.is-open .nav-overlay-close {
    pointer-events: auto;
  }

  /* Overlay header: wordmark + close button */
  .nav-overlay-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    flex-shrink: 0;
    margin-bottom: var(--space-4);
  }

  .nav-overlay-wordmark img {
    height: 26px;
    width: auto;
    filter: invert(1);
  }

  .nav-overlay-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
  }
  .nav-overlay-close span {
    display: block;
    position: absolute;
    width: 20px; height: 1.5px;
    background: var(--color-text-inverse);
    border-radius: 2px;
  }
  .nav-overlay-close span:nth-child(1) { transform: rotate(45deg); }
  .nav-overlay-close span:nth-child(2) { transform: rotate(-45deg); }

  /* Links wrapper */
  .nav-overlay-links {
    display: flex;
    flex-direction: column;
    gap: 0;
    flex: 1;
  }

  /* Staggered entrance — target sections */
  .nav-overlay-header,
  .nav-overlay-links,
  .nav-overlay-divider,
  .nav-overlay-lang,
  .nav-overlay-ctas {
    opacity: 0;
    transform: translateY(10px);
    transition:
      opacity   0.3s var(--ease-nav-item),
      transform 0.3s var(--ease-nav-item);
  }

  .nav-overlay.is-open .nav-overlay-header  { opacity:1; transform:translateY(0); transition-delay: 0.04s; }
  .nav-overlay.is-open .nav-overlay-links   { opacity:1; transform:translateY(0); transition-delay: 0.10s; }
  .nav-overlay.is-open .nav-overlay-divider { opacity:1; transform:translateY(0); transition-delay: 0.20s; }
  .nav-overlay.is-open .nav-overlay-lang    { opacity:1; transform:translateY(0); transition-delay: 0.23s; }
  .nav-overlay.is-open .nav-overlay-ctas    { opacity:1; transform:translateY(0); transition-delay: 0.28s; }

  /* Main nav links */
  .nav-overlay-link {
    font-size: clamp(28px, 7vw, 48px);
    font-weight: var(--weight-light);
    letter-spacing: var(--tracking-tight-md);
    color: var(--color-text-inverse);
    text-decoration: none;
    line-height: 1.2;
    padding: var(--space-2) 0;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    transition: opacity var(--duration-hover) var(--ease-out);
  }
  .nav-overlay-link:hover { opacity: 0.5; }

  /* Usługi accordion wrapper */
  .nav-overlay-accordion {
    display: flex;
    flex-direction: column;
  }

  /* Accordion trigger — reset button, inherit link styles */
  .nav-overlay-acc-trigger {
    background: transparent;
    border: none;
    padding: var(--space-2) 0;
    cursor: pointer;
    font-family: var(--font-sans);
    text-align: left;
    width: 100%;
    justify-content: flex-start;
  }

  /* Chevron */
  .nav-overlay-chev {
    display: inline-block;
    width: 9px; height: 9px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translate(-2px, -2px);
    transition: transform 0.25s var(--ease-nav-item);
    flex-shrink: 0;
    margin-left: var(--space-1);
  }
  .nav-overlay-acc-trigger[aria-expanded="true"] .nav-overlay-chev {
    transform: rotate(-135deg) translate(-2px, -2px);
  }

  /* Sub-links — animated via max-height */
  .nav-overlay-sub {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding-left: var(--space-5);
    border-left: 1px solid rgba(255,255,255,0.15);
    margin-bottom: var(--space-2);
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.35s var(--ease-nav-item), opacity 0.3s var(--ease-nav-item);
  }
  .nav-overlay-sub[hidden] {
    display: flex !important;
    max-height: 0 !important;
    opacity: 0 !important;
  }
  .nav-overlay-sub.is-open {
    max-height: 300px;
    opacity: 1;
  }

  .nav-overlay-sub a {
    font-size: var(--text-body);
    font-weight: var(--weight-regular);
    color: rgba(255,255,255,0.55);
    text-decoration: none;
    padding: var(--space-1) 0;
    transition: color var(--duration-hover) var(--ease-out);
  }
  .nav-overlay-sub a:hover { color: var(--color-text-inverse); }

  /* Divider */
  .nav-overlay-divider {
    width: 100%;
    height: 1px;
    background: rgba(255,255,255,0.12);
    margin: var(--space-4) 0 var(--space-2);
  }

  .nav-overlay-lang {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    gap: 0;
    color: rgba(255,255,255,0.55);
    font-family: var(--font-sans);
    font-size: var(--text-body-sm);
    font-weight: var(--weight-regular);
    line-height: var(--leading-ui);
    padding: var(--space-2) 0;
    margin: 0;
  }

  .nav-overlay-lang .nav-lang-opt[data-active="true"] {
    color: var(--color-text-inverse);
  }

  .nav-overlay-lang .nav-lang-sep {
    color: rgba(255,255,255,0.22);
    margin: 0 5px;
  }

  /* CTA row */
  .nav-overlay-ctas {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-2);
  }

  .nav-overlay-cta {
    display: inline-flex;
    align-items: center;
    padding: 0 var(--space-6);
    height: 44px;
    border-radius: var(--radius-pill);
    font-size: var(--text-body-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-text-inverse);
    text-decoration: none;
    border: 1px solid rgba(255,255,255,0.2);
    transition: background var(--duration-hover) var(--ease-out), border-color var(--duration-hover) var(--ease-out);
  }
  .nav-overlay-cta--primary {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.3);
  }
  .nav-overlay-cta:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.4); }
}


/* ── prefers-reduced-motion ──
   Registered here as a placeholder.
   Will be populated when motion tokens
   are applied to scroll animations.
── */
@media (prefers-reduced-motion: reduce) {
  .partners-track { animation: none; }
  .why-waveform   { display: none; }
  .metric-arrow.ping { animation: none; }
  .count-from,
  .count-to,
  .metric-minus {
    opacity: 1;
    transform: none;
    transition: none;
  }
}