/* ==========================================================================
   GIBI — Design System
   Energia (OZE) / Sen (Łóżka) / Budowa — jedna marka, trzy filary.
   ========================================================================== */

@import url('../fonts/fonts.css');

:root {
  /* --- Kolory podstawowe --- */
  --c-graphite: #0E1512;
  --c-graphite-2: #14211C;
  --c-green: #14C79A;
  --c-green-dark: #0E7C5A;
  --c-cream: #E9F3EE;
  --c-paper: #F4F2EC;
  --c-paper-alt: #EEEBE2;

  /* --- Tekst --- */
  --c-text-on-dark: #E9F3EE;
  --c-text-on-dark-secondary: #8fa39a;
  --c-text-on-dark-tertiary: #5c6f66;
  --c-text-hero-p: #a9bcb3;
  --c-text-body: #4a473f;
  --c-text-muted: #6b6860;
  --c-text-muted-2: #9a978d;
  --c-heading: #14211C;

  /* --- Obrysy --- */
  --c-border: #e3e0d6;
  --c-border-2: #dcd9cf;

  /* --- Linie biznesowe --- */
  --c-amber: #F2A93B;   /* OZE */
  --c-blue: #5B8DEF;    /* Łóżka / Sen */
  --c-brick: #E4633E;   /* Budowa */

  /* --- Typografia --- */
  --f-display: 'Space Grotesk', sans-serif;
  --f-body: 'Manrope', sans-serif;
  --f-mono: 'JetBrains Mono', monospace;

  /* --- Promienie --- */
  --r-card: 16px;
  --r-card-sm: 14px;
  --r-tile: 18px;
  --r-pill: 999px;

  /* --- Cienie --- */
  --shadow-card: 0 12px 30px rgba(30,28,20,0.07);
  --shadow-card-sm: 0 8px 22px rgba(30,28,20,0.06);
  --shadow-dark: 0 16px 34px rgba(0,0,0,0.28);

  /* --- Odstępy / kontener --- */
  --container-w: 1180px;
  --gutter: clamp(20px, 5vw, 88px);

  /* --- Ruch --- */
  --ease: cubic-bezier(.22,.9,.3,1);
  --dur-fast: .2s;
  --dur: .45s;
  --dur-slow: .8s;

  color-scheme: light;
}

@view-transition {
  navigation: auto;
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}
body {
  font-family: var(--f-body);
  background: var(--c-paper);
  color: var(--c-text-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--c-green-dark); text-decoration: none; }
ul { list-style: none; padding: 0; }
button { font: inherit; cursor: pointer; }
input, textarea, select { font: inherit; }
h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 700;
  color: var(--c-heading);
  letter-spacing: -0.02em;
  line-height: 1.1;
  text-wrap: pretty balance;
}
::selection { background: var(--c-green); color: var(--c-graphite); }

:focus-visible {
  outline: 2px solid var(--c-green);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ==========================================================================
   Layout utilities
   ========================================================================== */
.container {
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: clamp(64px, 9vw, 112px); }
.section--tight { padding-block: clamp(48px, 6vw, 80px); }
.section--dark { background: var(--c-graphite); color: var(--c-text-on-dark); }
.section--alt { background: var(--c-paper-alt); }
.section--border-b { border-bottom: 1px solid var(--c-border-2); }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.eyebrow {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-green);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.eyebrow::before {
  content: '';
  width: 22px; height: 1.5px;
  background: currentColor;
  display: inline-block;
}
.section--alt .eyebrow, .section:not(.section--dark) .eyebrow { color: var(--c-green-dark); }

h2.section-title {
  font-size: clamp(28px, 4vw, 34px);
  margin-bottom: 16px;
}
.section-lede {
  max-width: 620px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--c-text-body);
}
.section--dark .section-lede { color: var(--c-text-hero-p); }
.section-head { margin-bottom: 48px; }
.section-head--center { text-align: center; margin-inline: auto; }
.section-head--center .section-lede { margin-inline: auto; }

.text-accent { color: var(--c-green-dark); }
.section--dark .text-accent { color: var(--c-green); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-body);
  font-weight: 700;
  font-size: 15px;
  padding: 13px 26px;
  border-radius: var(--r-pill);
  border: none;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
  white-space: nowrap;
  position: relative;
}
.btn svg { width: 18px; height: 18px; transition: transform var(--dur-fast) var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn:active { transform: scale(.97); }

.btn--primary { background: var(--c-green); color: var(--c-graphite); }
.btn--primary:hover { background: #1adcac; box-shadow: 0 10px 26px rgba(20,199,154,.35); transform: translateY(-2px); }

.btn--graphite { background: var(--c-graphite); color: var(--c-cream); }
.btn--graphite:hover { background: #1b2b24; transform: translateY(-2px); }

.btn--outline { border: 1.5px solid var(--c-graphite); color: var(--c-graphite); background: transparent; padding: 11.5px 24px; }
.btn--outline:hover { background: var(--c-graphite); color: var(--c-cream); }

.btn--outline-light { border: 1.5px solid rgba(255,255,255,.28); color: var(--c-cream); background: transparent; padding: 11.5px 24px; }
.btn--outline-light:hover { border-color: var(--c-green); background: rgba(20,199,154,.08); }

.btn--link { color: var(--c-green-dark); font-weight: 700; padding: 12px 4px; background: none; }
.btn--link span { border-bottom: 2px solid transparent; transition: border-color var(--dur-fast) var(--ease); }
.btn--link:hover span { border-color: var(--c-green); }

.btn--sm { padding: 9px 18px; font-size: 14px; }
.btn--block { width: 100%; justify-content: center; }

/* ==========================================================================
   Nav
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(14,21,18,.92);
  backdrop-filter: blur(10px) saturate(1.4);
  -webkit-backdrop-filter: blur(10px) saturate(1.4);
  border-bottom: 1px solid rgba(255,255,255,.07);
  transition: padding var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px var(--gutter);
  max-width: var(--container-w);
  margin-inline: auto;
  transition: padding var(--dur-fast) var(--ease);
}
.is-scrolled .nav { padding-block: 14px; }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand__mark { width: 32px; height: 32px; flex: none; }
.brand__word {
  font-family: var(--f-display); font-weight: 700; font-size: 20px;
  color: var(--c-text-on-dark);
  transform: skewX(-9deg); display: inline-block; line-height: 1;
}

.nav__right { display: flex; align-items: center; }
.nav__links { display: flex; align-items: center; gap: 8px; }
.nav__link {
  color: var(--c-text-on-dark-secondary);
  font-size: 14px; font-weight: 600;
  padding: 9px 14px; border-radius: var(--r-pill);
  transition: color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
  position: relative;
}
.nav__link:hover { color: var(--c-text-on-dark); background: rgba(255,255,255,.06); }
.nav__link.is-active { color: var(--c-green); }
.nav__link.is-active::after {
  content: '';
  position: absolute; left: 14px; right: 14px; bottom: 3px;
  height: 2px; background: var(--c-green); border-radius: 2px;
}
.nav__cta { margin-left: 8px; }

.nav__burger {
  display: none;
  width: 42px; height: 42px; border: none; background: none;
  color: var(--c-cream);
  align-items: center; justify-content: center;
  position: relative; z-index: 210;
}
.nav__burger span, .nav__burger span::before, .nav__burger span::after {
  content: ''; position: absolute; width: 20px; height: 1.5px; background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur-fast) var(--ease), top var(--dur) var(--ease);
}
.nav__burger span { top: 50%; }
.nav__burger span::before { top: -7px; }
.nav__burger span::after { top: 7px; }
.nav__burger span::before, .nav__burger span::after { left: 0; }
.mobile-open .nav__burger span { background: transparent; }
.mobile-open .nav__burger span::before { top: 0; transform: rotate(45deg); }
.mobile-open .nav__burger span::after { top: 0; transform: rotate(-45deg); }

.nav__panel-scrim { display: none; }

@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .nav__panel-scrim {
    display: block;
    position: fixed; inset: 0;
    background: var(--c-graphite);
    z-index: 200;
    opacity: 0; pointer-events: none;
    transition: opacity var(--dur) var(--ease);
  }
  .mobile-open .nav__panel-scrim { opacity: 1; pointer-events: auto; }
  .nav__panel-scrim .nav__links {
    display: flex; flex-direction: column; align-items: flex-start; gap: 6px;
    padding: 110px var(--gutter) 40px;
    height: 100%; overflow-y: auto;
  }
  .nav__panel-scrim .nav__link {
    font-family: var(--f-display); font-size: 28px; font-weight: 700; color: var(--c-cream);
    padding: 10px 0; width: 100%;
    opacity: 0; transform: translateY(14px);
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  }
  .mobile-open .nav__panel-scrim .nav__link { opacity: 1; transform: none; }
  .nav__panel-scrim .nav__link:nth-child(1) { transition-delay: .05s; }
  .nav__panel-scrim .nav__link:nth-child(2) { transition-delay: .1s; }
  .nav__panel-scrim .nav__link:nth-child(3) { transition-delay: .15s; }
  .nav__panel-scrim .nav__link:nth-child(4) { transition-delay: .2s; }
  .nav__panel-scrim .nav__cta { margin-top: 24px; margin-left: 0; }
  .nav__panel-scrim .nav__cta {
    opacity: 0; transform: translateY(14px);
    transition: opacity var(--dur) var(--ease) .25s, transform var(--dur) var(--ease) .25s;
  }
  .mobile-open .nav__panel-scrim .nav__cta { opacity: 1; transform: none; }
  body.mobile-open { overflow: hidden; }
}

.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2.5px; width: 0%;
  background: var(--c-green); z-index: 300;
  transition: width .12s linear;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  background: var(--c-graphite);
  color: var(--c-text-on-dark);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.hero__pattern {
  position: absolute; inset: 0; z-index: -1;
  opacity: .5;
  background-image: radial-gradient(circle at 82% 8%, rgba(20,199,154,.16), transparent 55%),
                     radial-gradient(circle at 10% 90%, rgba(20,199,154,.08), transparent 45%);
}
.hero__mark-ghost {
  position: absolute; right: -8%; top: -18%;
  width: 46%; aspect-ratio: 1; opacity: .07; z-index: -1;
  animation: spin-slow 60s linear infinite;
}
@keyframes spin-slow { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .hero__mark-ghost { animation: none; } }

.hero__inner {
  padding-block: clamp(56px, 10vw, 104px);
}
.hero h1 {
  font-size: clamp(32px, 5.4vw, 46px);
  color: var(--c-text-on-dark);
  margin-bottom: 20px;
}
.hero p.lede {
  color: var(--c-text-hero-p);
  font-size: clamp(16px, 2vw, 17px);
  line-height: 1.6;
  max-width: 560px;
  margin-bottom: 32px;
}
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__breadcrumb {
  font-family: var(--f-mono); font-size: 12px; letter-spacing: .1em;
  color: var(--c-text-on-dark-tertiary); margin-bottom: 22px;
  display: flex; gap: 8px; flex-wrap: wrap;
}
.hero__breadcrumb a { color: var(--c-text-on-dark-secondary); }
.hero__breadcrumb a:hover { color: var(--c-green); }

.page-hero { padding-block: clamp(44px, 7vw, 72px) clamp(56px, 8vw, 88px); }

/* ==========================================================================
   Reveal / scroll animations
   ========================================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal-group] > * {
  opacity: 0; transform: translateY(24px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
[data-reveal-group].is-visible > * { opacity: 1; transform: none; }
[data-reveal-group].is-visible > *:nth-child(1) { transition-delay: .04s; }
[data-reveal-group].is-visible > *:nth-child(2) { transition-delay: .1s; }
[data-reveal-group].is-visible > *:nth-child(3) { transition-delay: .16s; }
[data-reveal-group].is-visible > *:nth-child(4) { transition-delay: .22s; }
[data-reveal-group].is-visible > *:nth-child(5) { transition-delay: .28s; }
[data-reveal-group].is-visible > *:nth-child(6) { transition-delay: .34s; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-reveal-group] > * { opacity: 1; transform: none; transition: none; }
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
  background: #fff;
  border: 1px solid #eee;
  border-radius: var(--r-card-sm);
  box-shadow: var(--shadow-card-sm);
  padding: 26px 26px 28px;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(30,28,20,.12); border-color: transparent; }
.card__icon {
  width: 52px; height: 52px; border-radius: var(--r-tile);
  background: var(--c-graphite);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px; flex: none;
  transition: transform var(--dur) var(--ease);
}
.card:hover .card__icon { transform: rotate(-6deg) scale(1.05); }
.card__icon svg { width: 26px; height: 26px; color: var(--c-green); }
.card__icon--amber { background: var(--c-amber); } .card__icon--amber svg { color: var(--c-graphite); }
.card__icon--blue { background: var(--c-blue); } .card__icon--blue svg { color: #0a1a35; }
.card__icon--brick { background: var(--c-brick); } .card__icon--brick svg { color: var(--c-cream); }
.card h3 { font-size: 20px; margin-bottom: 8px; }
.card p { color: var(--c-text-muted); font-size: 14.5px; line-height: 1.6; }

.card--dark {
  background: var(--c-graphite); color: var(--c-text-on-dark);
  border: 1px solid rgba(255,255,255,.06);
}
.card--dark h3 { color: var(--c-text-on-dark); }
.card--dark p { color: var(--c-text-on-dark-secondary); }

/* Business line badge/dot */
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; flex: none; }
.dot--amber { background: var(--c-amber); }
.dot--blue { background: var(--c-blue); }
.dot--brick { background: var(--c-brick); }
.dot--green { background: var(--c-green); }

.tag {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: var(--r-pill);
  border: 1px solid var(--c-border);
  color: var(--c-text-muted);
}
.tag--amber { color: #96650f; border-color: #f2d8a8; background: #fdf6e8; }
.tag--blue { color: #2f4f9e; border-color: #cfdcfa; background: #eef2fd; }
.tag--brick { color: #a4381c; border-color: #f3cec2; background: #fdf0ec; }

/* ==========================================================================
   Stats
   ========================================================================== */
.stat { text-align: center; }
.stat__num {
  font-family: var(--f-display); font-weight: 700;
  font-size: clamp(36px, 5vw, 52px);
  color: var(--c-green);
  letter-spacing: -0.02em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat__label {
  font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--c-text-on-dark-secondary); margin-top: 10px;
}
.section:not(.section--dark) .stat__label { color: var(--c-text-muted-2); }

/* ==========================================================================
   Process steps
   ========================================================================== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding-top: 8px; }
.step__num {
  font-family: var(--f-mono); font-size: 13px; color: var(--c-green-dark);
  display: block; margin-bottom: 14px;
}
.section--dark .step__num { color: var(--c-green); }
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--c-text-muted); line-height: 1.6; }
.section--dark .step p { color: var(--c-text-on-dark-secondary); }

/* ==========================================================================
   FAQ accordion
   ========================================================================== */
.faq { max-width: 760px; margin-inline: auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: #fff; border: 1px solid var(--c-border);
  border-radius: var(--r-card-sm);
  overflow: hidden;
}
.faq-item__q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: none; border: none; text-align: left;
  padding: 20px 24px;
  font-family: var(--f-display); font-weight: 600; font-size: 16.5px; color: var(--c-heading);
}
.faq-item__q svg { width: 20px; height: 20px; color: var(--c-green-dark); flex: none; transition: transform var(--dur) var(--ease); }
.faq-item.is-open .faq-item__q svg { transform: rotate(180deg); }
.faq-item__a {
  display: grid; grid-template-rows: 0fr; transition: grid-template-rows var(--dur) var(--ease);
}
.faq-item__a > div { overflow: hidden; }
.faq-item__a p { padding: 0 24px 22px; color: var(--c-text-muted); font-size: 15px; line-height: 1.65; max-width: 640px; }
.faq-item.is-open .faq-item__a { grid-template-rows: 1fr; }

/* ==========================================================================
   Forms
   ========================================================================== */
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.field label {
  font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--c-text-muted);
}
.field input, .field textarea, .field select {
  border: 1.5px solid var(--c-border); border-radius: 10px;
  padding: 13px 16px; font-size: 15px; color: var(--c-heading);
  background: #fff;
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--c-green); box-shadow: 0 0 0 4px rgba(20,199,154,.15);
}
.field textarea { resize: vertical; min-height: 120px; }
.field--row { flex-direction: row; align-items: flex-start; gap: 10px; }
.field--row input { width: auto; margin-top: 3px; accent-color: var(--c-green); }
.field--row label { text-transform: none; font-family: var(--f-body); font-size: 13.5px; letter-spacing: 0; line-height: 1.5; color: var(--c-text-muted); }
.field--row a { color: var(--c-green-dark); font-weight: 700; }
.field-error { color: var(--c-brick); font-size: 12.5px; font-family: var(--f-mono); display: none; }
.field.has-error input, .field.has-error textarea { border-color: var(--c-brick); }
.field.has-error .field-error { display: block; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; pointer-events: none; }

.form-status {
  display: none; align-items: center; gap: 12px;
  padding: 16px 18px; border-radius: 12px; font-size: 14.5px; font-weight: 600;
  margin-top: 18px;
}
.form-status.is-visible { display: flex; }
.form-status--ok { background: #e8f9f3; color: var(--c-green-dark); border: 1px solid #b9ecdb; }
.form-status--err { background: #fdecea; color: #b6462a; border: 1px solid #f6c9bd; }
.form-status svg { width: 20px; height: 20px; flex: none; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--c-graphite); color: var(--c-text-on-dark-secondary); }
.site-footer a { color: var(--c-text-on-dark-secondary); transition: color var(--dur-fast) var(--ease); }
.site-footer a:hover { color: var(--c-green); }
.footer__top { padding-block: 64px; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 40px; }
@media (max-width: 900px) { .footer__top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer__top { grid-template-columns: 1fr; } }
.footer__brand p { font-size: 14px; line-height: 1.65; max-width: 300px; margin-top: 16px; }
.footer__heading {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--c-text-on-dark-tertiary); margin-bottom: 16px;
}
.footer__links { display: flex; flex-direction: column; gap: 11px; font-size: 14.5px; }
.footer__lines { display: flex; flex-direction: column; gap: 13px; font-size: 14.5px; }
.footer__lines li { display: flex; align-items: center; gap: 10px; }
.footer__contact { display: flex; flex-direction: column; gap: 12px; font-size: 14.5px; }
.footer__contact .mono { font-family: var(--f-mono); font-size: 13.5px; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-block: 24px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  font-size: 13px; color: var(--c-text-on-dark-tertiary);
}
.footer__bottom-links { display: flex; gap: 22px; }

/* ==========================================================================
   Back to top
   ========================================================================== */
.to-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--c-graphite); color: var(--c-green);
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,.1);
  box-shadow: var(--shadow-dark);
  opacity: 0; transform: translateY(10px); pointer-events: none;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur-fast);
}
.to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { background: #1b2b24; }
.to-top svg { width: 20px; height: 20px; }

/* ==========================================================================
   Misc components
   ========================================================================== */
.divider-fade { height: 2px; background: linear-gradient(90deg, var(--c-green), transparent); }

.pattern-block {
  position: relative; overflow: hidden; background: var(--c-graphite); border-radius: var(--r-card);
}
.pattern-block__grid {
  position: absolute; inset: 0; opacity: .12;
  background-image:
    repeating-linear-gradient(0deg, rgba(20,199,154,.5) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(20,199,154,.5) 0 1px, transparent 1px 64px);
}

.list-check { display: flex; flex-direction: column; gap: 14px; }
.list-check li { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; line-height: 1.55; }
.list-check svg { width: 20px; height: 20px; color: var(--c-green-dark); flex: none; margin-top: 1px; }
.section--dark .list-check svg { color: var(--c-green); }

.mono-label {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--c-text-muted-2);
}

.marquee-lines {
  display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
  font-family: var(--f-mono); font-size: 12.5px; letter-spacing: .08em; color: var(--c-text-on-dark-tertiary);
}
.marquee-lines span { display: flex; align-items: center; gap: 8px; }

/* Skip link */
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 400;
  background: var(--c-green); color: var(--c-graphite); font-weight: 700;
  padding: 10px 18px; border-radius: 10px;
  transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus { top: 12px; }

/* Utility */
.u-mt-0 { margin-top: 0; }
.u-flex { display: flex; }
.u-items-center { align-items: center; }
.u-gap-12 { gap: 12px; }
.u-text-center { text-align: center; }
.u-max-w-560 { max-width: 560px; }
.u-max-w-680 { max-width: 680px; }
@media (max-width: 640px) {
  .hero__actions .btn, .hero__actions a { width: 100%; justify-content: center; }
  .hero__actions { flex-direction: column; }
}