/* =========================================================================
   FHR — modern static site
   Design system: ink/paper + warm gold, fluid type, scroll-driven reveal
   ========================================================================= */

/* ----- tokens ----- */
:root {
  --ink:        #0b0b0c;
  --ink-2:      #131316;
  --ink-3:      #1c1c20;
  --line:       #26262b;
  --paper:      #f6f3ec;
  --paper-2:    #ecead9;
  --gold:       #c9a661;
  --gold-2:     #e8c984;
  --accent:     #ff5b3a;
  --muted:      #8a8a90;

  --bg:         var(--ink);
  --bg-2:       var(--ink-2);
  --bg-3:       var(--ink-3);
  --fg:         var(--paper);
  --fg-soft:    #c9c8c0;
  --border:     var(--line);
  --shadow:     0 30px 80px -20px rgba(0,0,0,.6), 0 8px 24px -10px rgba(0,0,0,.4);

  --serif:      "Instrument Serif", "Cormorant Garamond", "Times New Roman", serif;
  --sans:       "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono:       "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 36px;

  --max: 1240px;
  --pad: clamp(1.25rem, 4vw, 2.5rem);

  --easing: cubic-bezier(.2, .8, .2, 1);
}

[data-theme="light"] {
  --bg:      var(--paper);
  --bg-2:    var(--paper-2);
  --bg-3:    #e1ddc7;
  --fg:      #131316;
  --fg-soft: #3a3a40;
  --border:  rgba(0,0,0,.12);
  --shadow:  0 30px 80px -30px rgba(0,0,0,.18), 0 8px 24px -10px rgba(0,0,0,.08);
  --line:    rgba(0,0,0,.12);
}

/* ----- reset ----- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 400 16px/1.55 var(--sans);
  font-feature-settings: "ss01","ss02","cv11";
  letter-spacing: -.005em;
  overflow-x: hidden;
  transition: background .4s var(--easing), color .4s var(--easing);
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ----- layout helpers ----- */
.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding-inline: var(--pad);
}
.skip-link {
  position: fixed;
  left: 1rem; top: -3rem;
  background: var(--gold);
  color: var(--ink);
  padding: .6rem 1rem;
  border-radius: var(--r-sm);
  z-index: 1000;
  transition: top .2s;
}
.skip-link:focus { top: 1rem; }

/* ----- film grain overlay ----- */
.grain {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 1000;
  opacity: .035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='.6'/></svg>");
}
[data-theme="light"] .grain { opacity: .055; mix-blend-mode: multiply; }

/* ============ NAV ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  border-bottom: 1px solid transparent;
  transition: background .3s var(--easing), border-color .3s var(--easing);
}
.nav.is-scrolled {
  border-bottom-color: var(--border);
}
.nav__inner {
  display: flex; align-items: center;
  gap: 1.25rem;
  height: 72px;
}
.nav__brand {
  display: inline-flex; align-items: center; gap: .65rem;
  color: var(--fg);
}
.nav__logo {
  width: 34px; height: 34px;
  color: var(--fg);
}
.nav__brand-text {
  display: inline-flex; flex-direction: column; line-height: 1;
}
.nav__brand-text strong {
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: .02em;
}
.nav__brand-text em {
  font-style: normal;
  font-size: .68rem;
  letter-spacing: .22em;
  color: var(--muted);
  text-transform: uppercase;
  margin-top: 2px;
}
.nav__links {
  display: flex;
  gap: .15rem;
  margin-left: auto;
  align-items: center;
}
.nav__links a {
  position: relative;
  padding: .55rem .9rem;
  font-size: .92rem;
  font-weight: 500;
  color: var(--fg-soft);
  border-radius: 999px;
  transition: color .2s, background .2s;
}
.nav__links a:hover { color: var(--fg); background: color-mix(in oklab, var(--fg) 6%, transparent); }
.nav__chip {
  color: var(--gold-2) !important;
  background: color-mix(in oklab, var(--gold) 14%, transparent);
}
.nav__chip::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--gold) 50%, transparent);
}
.nav__tools {
  display: flex; align-items: center; gap: .35rem;
}
.lang, .theme {
  display: inline-flex; align-items: center; justify-content: center;
  height: 40px;
  padding: 0 .8rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--fg-soft);
  font-size: .8rem;
  letter-spacing: .08em;
  transition: color .2s, border-color .2s, background .2s;
}
.theme { width: 40px; padding: 0; }
.lang:hover, .theme:hover { color: var(--fg); border-color: color-mix(in oklab, var(--fg) 30%, transparent); }
.lang__sep { opacity: .35; margin: 0 .15rem; }
.lang[data-active="pl"] .lang__pl { color: var(--gold-2); }
.lang[data-active="en"] .lang__en { color: var(--gold-2); }
.lang[data-active="en"] .lang__pl,
.lang[data-active="pl"] .lang__en { opacity: .55; }

.theme svg { width: 18px; height: 18px; }
.theme__sun, .theme__moon { transition: opacity .25s, transform .35s var(--easing); position: absolute; }
.theme { position: relative; }
[data-theme="dark"] .theme__sun { opacity: 1; transform: rotate(0); }
[data-theme="dark"] .theme__moon { opacity: 0; transform: rotate(-90deg); }
[data-theme="light"] .theme__sun { opacity: 0; transform: rotate(90deg); }
[data-theme="light"] .theme__moon { opacity: 1; transform: rotate(0); }

.burger { display: none; width: 40px; height: 40px; border-radius: 999px; border: 1px solid var(--border); flex-direction: column; justify-content: center; align-items: center; gap: 4px; }
.burger span { display: block; width: 16px; height: 1.5px; background: var(--fg); transition: transform .25s, opacity .25s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ----- buttons ----- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  padding: .85rem 1.4rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: .95rem;
  letter-spacing: .01em;
  transition: transform .25s var(--easing), background .25s, color .25s, box-shadow .25s, border-color .25s;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn--sm { padding: .55rem 1rem; font-size: .85rem; }
.btn--lg { padding: 1.05rem 1.7rem; font-size: 1rem; }
.btn--primary {
  background: var(--gold);
  color: #1a1605;
  box-shadow: 0 12px 32px -10px color-mix(in oklab, var(--gold) 60%, transparent);
}
.btn--primary:hover { background: var(--gold-2); transform: translateY(-2px); box-shadow: 0 20px 40px -10px color-mix(in oklab, var(--gold) 70%, transparent); }
.btn--ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}
.btn--ghost:hover { background: color-mix(in oklab, var(--fg) 5%, transparent); border-color: color-mix(in oklab, var(--fg) 30%, transparent); }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex; align-items: center;
  padding-block: clamp(5rem, 12vh, 9rem) clamp(3rem, 8vh, 6rem);
  overflow: hidden;
  isolation: isolate;
}
.hero__grid {
  position: absolute; inset: 0; z-index: -1;
  background-image:
    linear-gradient(to right, color-mix(in oklab, var(--fg) 6%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklab, var(--fg) 6%, transparent) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
  opacity: .55;
}
.hero__mesh {
  position: absolute; inset: -10%; z-index: -2;
  filter: blur(80px);
  opacity: .9;
}
.hero__blob {
  position: absolute;
  border-radius: 50%;
  mix-blend-mode: screen;
  animation: drift 22s var(--easing) infinite alternate;
}
[data-theme="light"] .hero__blob { mix-blend-mode: multiply; opacity: .35; }
.hero__blob--1 { width: 55vmax; height: 55vmax; left: -15vmax; top: -15vmax; background: radial-gradient(circle, var(--gold) 0%, transparent 60%); animation-duration: 28s; }
.hero__blob--2 { width: 45vmax; height: 45vmax; right: -10vmax; top: 5vmax; background: radial-gradient(circle, var(--accent) 0%, transparent 60%); opacity: .55; animation-duration: 32s; }
.hero__blob--3 { width: 40vmax; height: 40vmax; left: 25vmax; bottom: -10vmax; background: radial-gradient(circle, #5b9eff 0%, transparent 60%); opacity: .35; animation-duration: 36s; }
@keyframes drift {
  0%   { transform: translate(0,0) scale(1); }
  100% { transform: translate(6vmax, -4vmax) scale(1.12); }
}

.hero__content { position: relative; }

.hero__pill {
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .45rem .9rem .45rem .65rem;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--gold) 35%, transparent);
  background: color-mix(in oklab, var(--gold) 10%, transparent);
  color: var(--gold-2);
  font-size: .82rem;
  letter-spacing: .02em;
  margin-bottom: 2rem;
}
.hero__pill .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--gold-2);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--gold) 25%, transparent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  50% { box-shadow: 0 0 0 8px color-mix(in oklab, var(--gold) 0%, transparent); }
}

.hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(3rem, 9vw, 8.5rem);
  line-height: .92;
  letter-spacing: -.025em;
  margin: 0 0 1.8rem;
}
.hero__title em {
  font-style: italic;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold-2) 50%, var(--gold) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shimmer 6s linear infinite;
}
.hero__line { display: block; }
.hero__line--accent { color: var(--fg); }
@keyframes shimmer {
  0%   { background-position: 0% 0; }
  100% { background-position: 200% 0; }
}

.hero__lead {
  max-width: 60ch;
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  color: var(--fg-soft);
  margin: 0 0 2.5rem;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: .75rem; margin-bottom: 4rem; }

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
  margin: 0;
}
.hero__metrics > div { display: flex; flex-direction: column-reverse; gap: .3rem; }
.hero__metrics dt {
  font-size: .82rem;
  color: var(--muted);
  letter-spacing: .03em;
}
.hero__metrics dd {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  line-height: 1;
  color: var(--fg);
  letter-spacing: -.02em;
}
.hero__metrics dd span { color: var(--gold); font-size: .65em; }

.hero__scroll {
  position: absolute;
  bottom: 1.5rem; left: 50%;
  transform: translateX(-50%);
  width: 20px; height: 32px;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  display: grid; place-items: center;
  color: var(--muted);
}
.hero__scroll span {
  display: block;
  width: 2px; height: 6px;
  background: currentColor;
  border-radius: 2px;
  animation: scroll 1.8s var(--easing) infinite;
}
@keyframes scroll {
  0% { transform: translateY(-6px); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translateY(6px); opacity: 0; }
}

/* ============ section primitives ============ */
section { padding-block: clamp(4rem, 10vh, 8rem); position: relative; }
.section__head {
  max-width: 70ch;
  margin: 0 0 4rem;
}
.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
  padding: .35rem .7rem;
  border: 1px solid color-mix(in oklab, var(--gold) 35%, transparent);
  border-radius: 999px;
}
.section__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: 1;
  letter-spacing: -.02em;
  margin: 0 0 1.25rem;
}
.section__title em {
  font-style: italic;
  color: var(--gold-2);
}
.section__head > p {
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  color: var(--fg-soft);
  max-width: 60ch;
}

/* ============ KSeF ============ */
.ksef {
  background:
    radial-gradient(ellipse at 80% 0%, color-mix(in oklab, var(--gold) 14%, transparent), transparent 50%),
    var(--bg);
}
.ksef__timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 4rem;
}
.ksef__step {
  position: relative;
  padding: 2rem 1.6rem 1.6rem;
  border-radius: var(--r-lg);
  background: var(--bg-2);
  border: 1px solid var(--border);
  overflow: hidden;
}
.ksef__bar {
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-2));
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1.2s var(--easing) .2s;
}
.ksef__step.is-visible .ksef__bar { transform: scaleX(1); }
.ksef__step--soon .ksef__bar { background: linear-gradient(90deg, var(--accent), var(--gold-2)); }

.ksef__date {
  font-family: var(--mono);
  font-size: .82rem;
  letter-spacing: .15em;
  color: var(--muted);
  margin-bottom: .8rem;
  display: block;
}
.ksef__step h3 {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2vw, 1.85rem);
  margin: 0 0 .6rem;
  font-weight: 400;
  letter-spacing: -.01em;
}
.ksef__step p { color: var(--fg-soft); margin: 0 0 1.5rem; }
.ksef__status {
  display: inline-block;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  padding: .35rem .65rem;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--gold) 50%, transparent);
  color: var(--gold-2);
}
.ksef__status--counter {
  display: inline-flex; align-items: baseline; gap: .35rem;
  border-color: color-mix(in oklab, var(--accent) 55%, transparent);
  color: var(--accent);
  letter-spacing: .12em;
}
.ksef__status--counter strong {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: 0;
}

.ksef__features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.ksef__feature {
  padding: 1.6rem 1.4rem;
  border-radius: var(--r-md);
  background: color-mix(in oklab, var(--fg) 3%, transparent);
  border: 1px solid var(--border);
  transition: transform .35s var(--easing), border-color .35s;
}
.ksef__feature:hover { transform: translateY(-4px); border-color: color-mix(in oklab, var(--gold) 50%, transparent); }
.ksef__feature svg { width: 28px; height: 28px; color: var(--gold); margin-bottom: 1rem; }
.ksef__feature h4 { font-family: var(--serif); font-weight: 400; font-size: 1.25rem; margin: 0 0 .5rem; }
.ksef__feature p { margin: 0; font-size: .94rem; color: var(--fg-soft); }

/* ============ SERVICES ============ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.service {
  position: relative;
  padding: clamp(1.75rem, 3vw, 2.75rem);
  border-radius: var(--r-xl);
  background: var(--bg-2);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform .5s var(--easing), border-color .35s, background .35s;
  transform-style: preserve-3d;
}
.service::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 50%), color-mix(in oklab, var(--gold) 18%, transparent), transparent 40%);
  opacity: 0;
  transition: opacity .4s;
  pointer-events: none;
}
.service:hover::before { opacity: 1; }
.service:hover { border-color: color-mix(in oklab, var(--gold) 50%, transparent); }
.service--featured {
  background: linear-gradient(160deg, var(--bg-2) 0%, color-mix(in oklab, var(--gold) 10%, var(--bg-2)) 100%);
}
.service__num {
  display: block;
  font-family: var(--mono);
  font-size: .85rem;
  color: var(--gold);
  letter-spacing: .25em;
  margin-bottom: 1.25rem;
}
.service h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.75rem, 2.8vw, 2.4rem);
  line-height: 1;
  margin: 0 0 1rem;
  letter-spacing: -.015em;
}
.service > p { color: var(--fg-soft); margin: 0 0 1.5rem; max-width: 50ch; }
.service ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.75rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .55rem 1.25rem;
}
.service ul li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .94rem;
  color: var(--fg-soft);
}
.service ul li::before {
  content: "";
  position: absolute;
  left: 0; top: .55rem;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
}
.service__link {
  font-family: var(--mono);
  font-size: .85rem;
  letter-spacing: .14em;
  color: var(--gold-2);
  border-bottom: 1px solid color-mix(in oklab, var(--gold) 40%, transparent);
  padding-bottom: 2px;
  transition: color .2s, border-color .2s;
}
.service__link:hover { color: var(--fg); border-color: var(--fg); }

/* ============ PRICING ============ */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
}
.plan {
  position: relative;
  padding: 2rem 1.5rem;
  border-radius: var(--r-lg);
  background: var(--bg-2);
  border: 1px solid var(--border);
  display: flex; flex-direction: column;
  transition: transform .35s var(--easing), border-color .35s, background .35s;
}
.plan:hover { transform: translateY(-4px); }
.plan--featured {
  background: linear-gradient(170deg, color-mix(in oklab, var(--gold) 14%, var(--bg-2)) 0%, var(--bg-2) 100%);
  border-color: color-mix(in oklab, var(--gold) 45%, transparent);
}
.plan__badge {
  position: absolute;
  top: -10px; left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: #1a1605;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  padding: .35rem .7rem;
  border-radius: 999px;
  white-space: nowrap;
}
.plan header h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.45rem;
  margin: 0 0 .25rem;
  letter-spacing: -.01em;
}
.plan__for { font-size: .82rem; color: var(--muted); }
.plan__price {
  display: flex; align-items: baseline; gap: .35rem;
  margin: 1.5rem 0 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px dashed var(--border);
}
.plan__price strong {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.5rem, 4vw, 3.3rem);
  line-height: 1;
  color: var(--gold);
  letter-spacing: -.02em;
}
.plan__from { font-size: .8rem; color: var(--muted); text-transform: lowercase; letter-spacing: .08em; }
.plan__unit { color: var(--fg-soft); font-size: .9rem; }
.plan__unit em { font-style: normal; color: var(--muted); }
.plan ul {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: .5rem;
}
.plan ul li {
  position: relative;
  padding-left: 1.3rem;
  font-size: .9rem;
  color: var(--fg-soft);
}
.plan ul li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 0;
  color: var(--gold);
  font-weight: 700;
}
.pricing__cta {
  display: flex; flex-wrap: wrap; gap: .75rem; justify-content: center;
}

/* ============ PROCESS ============ */
.process__list {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  counter-reset: step;
}
.process__item {
  position: relative;
  padding: 2rem 1.5rem;
  border-radius: var(--r-lg);
  background: color-mix(in oklab, var(--fg) 3%, transparent);
  border: 1px solid var(--border);
}
.process__num {
  display: inline-block;
  font-family: var(--mono);
  font-size: .85rem;
  color: var(--gold);
  letter-spacing: .25em;
  margin-bottom: 1rem;
}
.process__item h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.3rem;
  margin: 0 0 .65rem;
  letter-spacing: -.01em;
}
.process__item p { margin: 0; font-size: .94rem; color: var(--fg-soft); }
.process__item::after {
  content: "→";
  position: absolute;
  right: -.85rem; top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: var(--gold);
  background: var(--bg);
  width: 1.7rem; height: 1.7rem;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  z-index: 1;
}
.process__item:last-child::after { display: none; }

/* ============ ABOUT ============ */
.about__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.about__usps {
  list-style: none; padding: 0; margin: 1.5rem 0 0;
  display: flex; flex-direction: column; gap: .85rem;
  font-size: 1.05rem;
}
.about__usps li {
  padding-bottom: .85rem;
  border-bottom: 1px solid var(--border);
}
.about__usps li:last-child { border-bottom: 0; }
.about__card {
  position: relative;
}
.about__card-inner {
  position: relative;
  padding: clamp(2rem, 4vw, 3.5rem);
  border-radius: var(--r-xl);
  background: linear-gradient(160deg, var(--bg-2), color-mix(in oklab, var(--gold) 12%, var(--bg-2)));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.about__quote {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  line-height: 1.45;
  margin: 0 0 1.5rem;
}
.about__card footer { display: flex; flex-direction: column; gap: .15rem; font-size: .9rem; color: var(--fg-soft); }
.about__card footer strong { color: var(--gold-2); font-weight: 500; letter-spacing: .04em; }

/* ============ FAQ ============ */
.faq__list { display: flex; flex-direction: column; gap: .5rem; max-width: 880px; margin: 0 auto; }
.faq__item {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-2);
  overflow: hidden;
  transition: border-color .25s, background .25s;
}
.faq__item[open] { border-color: color-mix(in oklab, var(--gold) 40%, transparent); }
.faq__item summary {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.4rem;
  cursor: pointer;
  font-family: var(--serif);
  font-size: 1.2rem;
  letter-spacing: -.005em;
  list-style: none;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+";
  font-family: var(--sans);
  font-weight: 300;
  font-size: 1.5rem;
  color: var(--gold);
  transition: transform .3s var(--easing);
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p {
  padding: 0 1.4rem 1.4rem;
  margin: 0;
  color: var(--fg-soft);
  max-width: 70ch;
}

/* ============ CONTACT ============ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.contact__info {
  list-style: none; padding: 0;
  margin: 2.5rem 0 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.contact__info li {
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.contact__lbl {
  display: block;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: .4rem;
}
.contact__info a, .contact__info span {
  font-family: var(--serif);
  font-size: 1.2rem;
  letter-spacing: -.005em;
  color: var(--fg);
}
.contact__info a:hover { color: var(--gold-2); }

.contact__form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  border-radius: var(--r-xl);
  background: var(--bg-2);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.field { display: flex; flex-direction: column; gap: .4rem; }
.field--full { grid-column: 1 / -1; }
.field label {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
}
.field input,
.field textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: .85rem 1rem;
  color: var(--fg);
  font: 400 1rem/1.4 var(--sans);
  transition: border-color .2s, background .2s;
}
.field input:focus,
.field textarea:focus { outline: none; border-color: var(--gold); }
.field textarea { resize: vertical; min-height: 110px; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .5rem .9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-size: .85rem;
  color: var(--fg-soft);
  cursor: pointer;
  transition: border-color .2s, color .2s, background .2s;
}
.chip input { appearance: none; width: 8px; height: 8px; border-radius: 50%; border: 1px solid var(--muted); margin: 0; transition: background .2s, border-color .2s; }
.chip:has(input:checked) { border-color: var(--gold); color: var(--fg); background: color-mix(in oklab, var(--gold) 10%, transparent); }
.chip:has(input:checked) input { background: var(--gold); border-color: var(--gold); }
.field--consent label { display: flex; gap: .6rem; align-items: flex-start; text-transform: none; letter-spacing: normal; font-family: var(--sans); color: var(--fg-soft); font-size: .85rem; line-height: 1.5; }
.field--consent input { width: 16px; height: 16px; accent-color: var(--gold); margin-top: 3px; }

/* ============ FOOTER ============ */
.footer {
  padding: 5rem 0 2.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg-2);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 2.5rem;
  margin-bottom: 3rem;
}
.footer__brand .nav__logo { width: 44px; height: 44px; margin-bottom: 1.25rem; }
.footer__brand p { color: var(--fg-soft); max-width: 30ch; margin: 0; }
.footer__col h4 {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1rem;
}
.footer__col a {
  display: block;
  padding: .35rem 0;
  color: var(--fg-soft);
  transition: color .2s;
}
.footer__col a:hover { color: var(--gold-2); }
.footer__bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-size: .85rem;
  color: var(--muted);
}

/* ============ scroll reveal ============ */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s var(--easing), transform .9s var(--easing);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ responsive ============ */
@media (max-width: 1100px) {
  .ksef__timeline,
  .pricing__grid,
  .ksef__features,
  .process__list {
    grid-template-columns: repeat(2, 1fr);
  }
  .process__item::after { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 880px) {
  .services__grid,
  .contact__grid,
  .about__grid {
    grid-template-columns: 1fr;
  }
  .contact__form { grid-template-columns: 1fr; }
  .hero__metrics { grid-template-columns: repeat(2, 1fr); }
  .service ul { grid-template-columns: 1fr; }

  .nav__links {
    position: fixed;
    inset: 72px 0 auto 0;
    flex-direction: column;
    background: var(--bg);
    padding: 1.5rem var(--pad) 2rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-110%);
    transition: transform .3s var(--easing);
    align-items: flex-start;
    gap: .25rem;
    margin-left: 0;
  }
  .nav.is-open .nav__links { transform: translateY(0); }
  .nav__links a { width: 100%; padding: .85rem 1rem; font-size: 1.05rem; }
  .burger { display: flex; }
  .nav__cta { display: none; }
  .nav__brand-text em { display: none; }
}
@media (max-width: 600px) {
  .ksef__timeline,
  .pricing__grid,
  .ksef__features,
  .process__list,
  .contact__info {
    grid-template-columns: 1fr;
  }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__metrics { grid-template-columns: 1fr 1fr; gap: 1.25rem; }
  .nav__tools .lang span:not(.lang__pl):not(.lang__en) { }
}

/* ============ a11y ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

::selection { background: var(--gold); color: #1a1605; }