/* ============================================
   ESQ Biuro Rachunkowe — Stylesheet
   ============================================ */

:root{
  --bg:            #F7F5F0;
  --surface:       #FFFFFF;
  --ink:           #1C2430;
  --ink-soft:      #545C68;
  --ink-faint:     #838A94;
  --primary:       #143152;
  --primary-dark:  #0D2138;
  --primary-tint:  #E9EEF3;
  --accent:        #A6763C;
  --accent-tint:   #F1E4D2;
  --line:          #DED7C7;
  --line-soft:     #E7E2D5;
  --radius:        3px;
  --shadow:        0 12px 32px -18px rgba(20,49,82,0.28);
  --font-head:     'Source Serif 4', Georgia, serif;
  --font-body:     'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --container:     1200px;
}

@media (prefers-color-scheme: dark){
  /* Intentionally not offering a dark theme: a financial/compliance
     document reads best on a fixed, print-like light surface. */
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3{
  font-family: var(--font-head);
  color: var(--primary);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
}

h1{ font-size: clamp(2.1rem, 4.2vw, 3.4rem); font-weight: 500; letter-spacing: -0.01em; }
h2{ font-size: clamp(1.6rem, 2.8vw, 2.3rem); }
h3{ font-size: 1.15rem; }

p{ margin: 0 0 1em; color: var(--ink-soft); }
a{ color: inherit; }

.wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.skip-link{
  position: absolute; left: -999px; top: 0;
  background: var(--primary); color: #fff; padding: 10px 16px; z-index: 999;
}
.skip-link:focus{ left: 12px; top: 12px; }

/* -------- Buttons -------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}
.btn-primary{ background: var(--primary); color: #fff; }
.btn-primary:hover{ background: var(--primary-dark); transform: translateY(-1px); }
.btn-ghost{ background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-ghost:hover{ background: var(--primary-tint); }
.btn-small{ padding: 9px 18px; font-size: 0.85rem; }
.btn-full{ width: 100%; }

/* -------- Header -------- */
.site-header{
  position: sticky; top: 0; z-index: 100;
  background: rgba(247,245,240,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner{
  display: flex; align-items: center; justify-content: space-between;
  height: 78px;
}
.brand{ display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--primary); }
.brand-mark{ display: inline-flex; color: var(--accent); }
.brand-text{ font-family: var(--font-head); font-size: 1.3rem; font-weight: 600; display: flex; flex-direction: column; line-height: 1.05; }
.brand-sub{ font-family: var(--font-body); font-size: 0.62rem; font-weight: 500; letter-spacing: 0.03em; color: var(--ink-faint); }

.main-nav ul{ list-style: none; display: flex; gap: 34px; margin: 0; padding: 0; }
.main-nav a{
  text-decoration: none; color: var(--ink); font-weight: 500; font-size: 0.95rem;
  position: relative; padding-bottom: 4px;
}
.main-nav a::after{
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform 0.25s ease;
}
.main-nav a:hover::after{ transform: scaleX(1); }

.header-actions{ display: flex; align-items: center; gap: 18px; }

.nav-toggle{
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px; background: none; border: 1px solid var(--line);
  border-radius: var(--radius); cursor: pointer;
}
.nav-toggle span{ display: block; width: 18px; height: 1.5px; background: var(--primary); margin: 0 auto; transition: transform 0.2s ease, opacity 0.2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-6.5px) rotate(-45deg); }

/* -------- Hero -------- */
.hero{ padding: 76px 0 96px; overflow: hidden; }
.hero-grid{
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 64px; align-items: center;
}
.eyebrow{
  font-size: 0.85rem; color: var(--accent); font-weight: 600; margin-bottom: 14px;
}
.hero-lead{ font-size: 1.1rem; max-width: 46ch; }
.hero-actions{ display: flex; gap: 16px; flex-wrap: wrap; margin: 28px 0 18px; }
.hero-note{ font-size: 0.85rem; color: var(--ink-faint); margin-bottom: 0; }

.hero-copy{
  opacity: 0; transform: translateY(14px);
  animation: rise 0.7s ease forwards;
}
.hero-panel{
  opacity: 0; transform: translateY(14px);
  animation: rise 0.7s ease 0.15s forwards;
}
@keyframes rise{ to{ opacity: 1; transform: translateY(0); } }

.ledger-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 26px;
}
.ledger-head{
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8rem; font-weight: 600; color: var(--ink-faint);
  border-bottom: 1px solid var(--line-soft); padding-bottom: 14px; margin-bottom: 16px;
  text-transform: none;
}
.ledger-status{ color: var(--accent); }

.ledger-rows{ list-style: none; margin: 0 0 20px; padding: 0; }
.ledger-rows li{
  display: grid; grid-template-columns: 1fr 2fr auto; align-items: center; gap: 12px;
  padding: 9px 0; border-bottom: 1px solid var(--line-soft); font-size: 0.85rem;
}
.ledger-rows li:last-child{ border-bottom: none; }
.ledger-rows li > span:first-child{ color: var(--ink); font-weight: 500; }
.ledger-rows li > span:last-child{ color: var(--ink-faint); font-size: 0.78rem; text-align: right; }

.lr-bar{ position: relative; height: 6px; background: var(--line-soft); border-radius: 4px; overflow: hidden; }
.lr-bar::after{
  content: ""; position: absolute; inset: 0; width: var(--w, 60%);
  background: var(--accent); border-radius: 4px;
  animation: fillbar 1.1s ease 0.4s both;
}
@keyframes fillbar{ from{ width: 0; } to{ width: var(--w, 60%); } }

.ledger-foot{
  display: flex; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--line-soft);
}
.ledger-foot div{ display: flex; flex-direction: column; }
.ledger-foot strong{ font-family: var(--font-head); font-size: 1.4rem; color: var(--primary); }
.ledger-foot span{ font-size: 0.72rem; color: var(--ink-faint); }

/* -------- About -------- */
.about{ padding: 90px 0; background: var(--surface); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.about-grid{ display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 60px; align-items: center; }
.about-figure img{ width: 100%; height: 100%; max-height: 420px; object-fit: cover; border-radius: var(--radius); display: block; }
.about-copy h2{ max-width: 16ch; }
.about-copy p{ max-width: 58ch; }
.about-points{ display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 28px; padding-top: 28px; border-top: 1px solid var(--line-soft); }
.about-point h3{ font-size: 1rem; margin-bottom: 6px; }
.about-point p{ font-size: 0.92rem; margin: 0; }

/* -------- Services -------- */
.services{ padding: 96px 0; }
.section-head{ max-width: 62ch; margin-bottom: 48px; }
.section-head p{ font-size: 1.02rem; }

.services-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.service-card{
  background: var(--surface); padding: 32px 28px; transition: background 0.2s ease;
}
.service-card:hover{ background: var(--primary-tint); }
.service-icon{ color: var(--accent); margin-bottom: 18px; }
.service-icon svg{ width: 34px; height: 34px; }
.service-card h3{ margin-bottom: 8px; }
.service-card p{ font-size: 0.92rem; margin: 0; }

/* -------- Why -------- */
.why{ padding: 96px 0; background: var(--primary); color: #fff; }
.why-grid{ display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 64px; }
.why-copy h2{ color: #fff; max-width: 14ch; }
.why-copy p{ color: rgba(255,255,255,0.72); max-width: 40ch; }
.why-copy .btn-primary{ background: var(--accent); }
.why-copy .btn-primary:hover{ background: #8f6633; }

.why-list{ display: grid; grid-template-columns: 1fr 1fr; gap: 28px 40px; margin: 0; }
.why-item{ border-top: 1px solid rgba(255,255,255,0.18); padding-top: 16px; }
.why-item dt{ font-weight: 600; margin-bottom: 6px; font-family: var(--font-head); font-size: 1.05rem; }
.why-item dd{ margin: 0; color: rgba(255,255,255,0.68); font-size: 0.92rem; }

/* -------- Contact -------- */
.contact{ padding: 96px 0; }
.contact-grid{ display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 64px; }
.contact-info h2{ max-width: 12ch; }
.contact-info > p{ max-width: 40ch; }

.info-list{ list-style: none; margin: 32px 0 0; padding: 0; display: flex; flex-direction: column; gap: 20px; }
.info-list li{ display: flex; flex-direction: column; gap: 4px; padding-top: 16px; border-top: 1px solid var(--line-soft); font-size: 0.95rem; }
.info-label{ font-size: 0.75rem; font-weight: 600; color: var(--accent); }
.info-list a{ text-decoration: none; }
.info-list a:hover{ text-decoration: underline; }

.contact-form{
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 36px; box-shadow: var(--shadow);
}
.form-row{ display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field{ margin-bottom: 18px; display: flex; flex-direction: column; }
.field label{ font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
.field input, .field select, .field textarea{
  border: 1px solid var(--line); border-radius: var(--radius); padding: 11px 13px;
  font-family: var(--font-body); font-size: 0.95rem; color: var(--ink); background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-tint);
}
.field textarea{ resize: vertical; min-height: 96px; }
.field.has-error input, .field.has-error textarea{ border-color: #B3432F; }
.field-error{ font-size: 0.78rem; color: #B3432F; min-height: 1.1em; margin-top: 4px; }

.checkbox-field{
  display: flex; align-items: flex-start; gap: 10px; font-size: 0.85rem; color: var(--ink-soft);
  margin-bottom: 4px; cursor: pointer;
}
.checkbox-field input{ margin-top: 3px; }

.form-status{ font-size: 0.9rem; margin: 14px 0 0; min-height: 1.2em; }
.form-status.success{ color: #2E7D4F; }
.form-status.error{ color: #B3432F; }

/* -------- Footer -------- */
.site-footer{ background: var(--primary-dark); color: rgba(255,255,255,0.7); padding: 72px 0 0; }
.footer-grid{ display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 56px; border-bottom: 1px solid rgba(255,255,255,0.12); }
.footer-brand .brand-text{ color: #fff; }
.footer-brand .brand-sub{ color: rgba(255,255,255,0.55); }
.footer-brand p{ color: rgba(255,255,255,0.55); font-size: 0.9rem; margin-top: 14px; max-width: 30ch; }
.footer-col h4{ color: #fff; font-size: 0.85rem; margin: 0 0 16px; font-weight: 600; }
.footer-col ul{ list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a{ text-decoration: none; color: rgba(255,255,255,0.62); font-size: 0.9rem; }
.footer-col a:hover{ color: #fff; }
.footer-contact li{ color: rgba(255,255,255,0.62); font-size: 0.9rem; }

.footer-bottom{ display: flex; justify-content: space-between; padding: 22px 0; font-size: 0.8rem; color: rgba(255,255,255,0.5); flex-wrap: wrap; gap: 8px; }

/* -------- Responsive -------- */
@media (max-width: 980px){
  .hero-grid, .about-grid, .why-grid, .contact-grid{ grid-template-columns: 1fr; }
  .about-figure{ order: 2; }
  .about-figure img{ max-height: 300px; }
  .services-grid{ grid-template-columns: repeat(2, 1fr); }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px){
  .main-nav{
    position: fixed; inset: 78px 0 auto 0; background: var(--bg);
    border-bottom: 1px solid var(--line-soft);
    max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
  }
  .main-nav.open{ max-height: 340px; }
  .main-nav ul{ flex-direction: column; gap: 0; padding: 8px 28px 20px; }
  .main-nav li{ border-bottom: 1px solid var(--line-soft); }
  .main-nav a{ display: block; padding: 14px 0; }
  .header-actions .btn-small{ display: none; }
  .nav-toggle{ display: flex; }

  .services-grid{ grid-template-columns: 1fr; }
  .about-points{ grid-template-columns: 1fr; }
  .why-list{ grid-template-columns: 1fr; }
  .form-row{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom{ flex-direction: column; }
  .contact-form{ padding: 26px; }
  .wrap{ padding: 0 20px; }
}