/* ============================================================
   UAB „Auditorių biuras" — design system
   Ledger-paper aesthetic: ruled lines, ink navy, stamp green
   ============================================================ */

:root {
  --paper: #f8f7ef;
  --paper-2: #efeedd;
  --ink: #16392a;          /* deep forest green — text, buttons, footer */
  --ink-soft: #4d6152;     /* muted green-grey */
  --rule: #ddddc6;
  --rule-strong: #c6c6a8;
  --accent: #a8821f;       /* gold — checks, eyebrows, stamp */
  --accent-deep: #7e6112;  /* dark gold — links, emphasis */
  --margin-red: #a8821f;   /* ledger margin rule, gold */
  --white: #ffffff;

  --font-display: "IBM Plex Serif", Georgia, serif;
  --font-body: "IBM Plex Sans", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --row: 2rem; /* ledger baseline */
  --container: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  overflow-x: hidden;
}

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--ink); color: var(--white); }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; }

/* ---------------- Header ---------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: 1px solid var(--rule-strong);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 80px;
}

.brand-wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.6rem;
  color: var(--ink);
  letter-spacing: 0.01em;
  display: block;
  line-height: 1.2;
  white-space: nowrap;
}

.brand-rule {
  height: 4px;
  width: 100%;
  background: var(--accent);
  border-radius: 2px;
  margin-top: 4px;
}

.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.main-nav { display: flex; align-items: center; gap: 1.75rem; }

.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.2s;
}
.main-nav a:hover { color: var(--ink); }

.nav-cta {
  background: var(--ink);
  color: var(--paper) !important;
  padding: 0.55rem 1.1rem;
  border-radius: 3px;
  font-weight: 600 !important;
  transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--accent-deep); }

.lang-switch {
  display: flex;
  gap: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}
.lang-switch button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.3rem 0.45rem;
  color: var(--ink-soft);
  font: inherit;
  border-radius: 2px;
}
.lang-switch button.active {
  background: var(--ink);
  color: var(--paper);
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  padding: 0.45rem 0.6rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink);
}

/* ---------------- Hero (ledger paper) ---------------- */

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--rule-strong);
  /* ruled ledger lines */
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent calc(var(--row) - 1px),
    var(--rule) calc(var(--row) - 1px),
    var(--rule) var(--row)
  );
}

/* red double margin rule, like classic ledger paper */
.hero::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  left: clamp(16px, 6vw, 96px);
  width: 5px;
  border-left: 1px solid var(--margin-red);
  border-right: 1px solid var(--margin-red);
  opacity: 0.55;
  transform-origin: top;
}

.hero-inner {
  position: relative;
  padding: calc(var(--row) * 3.5) 24px calc(var(--row) * 3);
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: calc(var(--row) * 1.5);
  align-items: start;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: var(--row);
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 4.6vw, 3.6rem);
  line-height: calc(var(--row) * 2);
  letter-spacing: -0.01em;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent-deep);
}

.hero-lead {
  margin-top: var(--row);
  max-width: 34rem;
  color: var(--ink-soft);
  line-height: var(--row);
}

.hero-actions {
  margin-top: calc(var(--row) * 1.5);
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8rem 1.5rem;
  border-radius: 3px;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-primary { background: var(--ink); color: var(--paper); border: 1px solid var(--ink); }
.btn-primary:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.btn-ghost { border: 1px solid var(--rule-strong); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); }

/* hero ledger card */
.ledger-card {
  background: var(--white);
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  box-shadow: 0 14px 32px rgba(22, 57, 42, 0.08);
  padding: 1.4rem 1.5rem 1.1rem;
  position: relative;
}

.ledger-card h2 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--rule-strong);
  padding-bottom: 0.7rem;
  margin-bottom: 0.4rem;
}

.ledger-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.62rem 0;
  border-bottom: 1px dashed var(--rule);
  font-size: 0.95rem;
}
.ledger-row:last-of-type { border-bottom: none; }
.ledger-row .k { color: var(--ink-soft); }
.ledger-row .v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--ink);
  text-align: right;
  white-space: nowrap;
}

.stamp {
  position: absolute;
  right: 1.1rem;
  bottom: -1.1rem;
  transform: rotate(-6deg);
  border: 2px solid var(--accent);
  color: var(--accent-deep);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.45rem 0.7rem;
  border-radius: 3px;
  background: rgba(247, 247, 242, 0.95);
  box-shadow: 0 4px 10px rgba(126, 97, 18, 0.18);
  text-align: center;
  line-height: 1.5;
}

/* ---------------- Sections ---------------- */

.section { padding: calc(var(--row) * 3) 0; }
.section + .section { border-top: 1px solid var(--rule-strong); }
.section.alt { background: var(--paper-2); border-top: 1px solid var(--rule-strong); border-bottom: 1px solid var(--rule-strong); }

.section-head { margin-bottom: calc(var(--row) * 1.5); max-width: 44rem; }

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-deep);
  display: block;
  margin-bottom: 0.6rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.section-head p { margin-top: 0.9rem; color: var(--ink-soft); }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--row) * 2);
  align-items: start;
}
.about-text p + p { margin-top: 1rem; }
.about-text p { color: var(--ink-soft); }
.about-text strong { color: var(--ink); }

.value-list { display: grid; gap: 1rem; }
.value-card {
  background: var(--white);
  border: 1px solid var(--rule-strong);
  border-left: 3px solid var(--accent);
  border-radius: 3px;
  padding: 1.1rem 1.3rem;
}
.value-card h3 {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}
.value-card p { font-size: 0.95rem; color: var(--ink-soft); }

/* Services — ledger table style */
.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--row) * 1.25);
}

.service-block {
  background: var(--white);
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  overflow: hidden;
}
.service-block header {
  padding: 1.2rem 1.4rem;
  border-bottom: 1px solid var(--rule-strong);
  background: var(--paper-2);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}
.service-block header h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
}
.service-block header .count {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--ink-soft);
  white-space: nowrap;
}
.service-block ul { list-style: none; }
.service-block li {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  padding: 0.95rem 1.4rem;
  border-bottom: 1px dashed var(--rule);
  font-size: 0.98rem;
}
.service-block li:last-child { border-bottom: none; }
.service-block li .check {
  flex: none;
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0.22rem;
  color: var(--accent);
}

/* Clients */
.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.client-card {
  background: var(--white);
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  padding: 1.05rem 1.2rem;
  font-size: 0.96rem;
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  color: var(--ink-soft);
}
.client-card .dot {
  flex: none;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 0.5rem;
}

/* Career */
.career-box {
  background: var(--white);
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  padding: calc(var(--row) * 1.25) clamp(1.4rem, 4vw, 2.5rem);
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: calc(var(--row) * 1.5);
  align-items: center;
}
.career-box p { color: var(--ink-soft); }
.career-box p + p { margin-top: 0.9rem; }
.career-cta { text-align: center; }
.career-cta .mono-note {
  display: block;
  margin-top: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  word-break: break-all;
}

/* Contacts */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--row) * 1.25);
}
.contact-card {
  background: var(--white);
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  padding: 1.4rem 1.5rem 0.9rem;
}
.contact-card h3 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--rule-strong);
  padding-bottom: 0.7rem;
  margin-bottom: 0.4rem;
}
.contact-card .ledger-row .v { font-weight: 500; }
.contact-card a { color: var(--accent-deep); text-decoration: none; }
.contact-card a:hover { text-decoration: underline; }

/* ---------------- Footer ---------------- */

.site-footer {
  border-top: 1px solid var(--rule-strong);
  background: var(--ink);
  color: rgba(247, 247, 242, 0.78);
  padding: calc(var(--row) * 1.5) 0;
  font-size: 0.9rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  align-items: baseline;
}
.footer-inner .mono { font-family: var(--font-mono); font-size: 0.78rem; }

/* ---------------- Paraiška (application form) ---------------- */

.form-page-head { padding: calc(var(--row) * 2.5) 0 calc(var(--row) * 1.5); }

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: calc(var(--row) * 1.25);
  flex-wrap: wrap;
}
.tab-btn {
  font: inherit;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.7rem 1.2rem;
  background: var(--white);
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  cursor: pointer;
  color: var(--ink-soft);
  transition: all 0.2s;
}
.tab-btn.active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.audit-form {
  background: var(--white);
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  padding: clamp(1.4rem, 4vw, 2.4rem);
}

.form-section-title {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin: calc(var(--row) * 1.1) 0 0.9rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}
.form-section-title:first-child { margin-top: 0; }

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.4rem;
}
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 0.88rem; font-weight: 600; }
.field input, .field select, .field textarea {
  font: inherit;
  font-size: 0.95rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  background: var(--paper);
  color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
.form-actions {
  margin-top: calc(var(--row) * 1.25);
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  align-items: center;
}
.form-actions button { font: inherit; cursor: pointer; }
.form-note { font-size: 0.85rem; color: var(--ink-soft); margin-top: 0.9rem; }
.copy-ok { color: var(--accent-deep); font-weight: 600; font-size: 0.88rem; }

/* ---------------- Reveal helpers (GSAP) ----------------
   Elements are visible by default; the js-anim class is added
   only when GSAP is loaded and reduced motion is off. */
html.js-anim .reveal { opacity: 0; }

/* red ledger margin rule draws down on load */
@keyframes drawRule { from { transform: scaleY(0); } to { transform: scaleY(1); } }
html.js-anim .hero::before { animation: drawRule 1.2s cubic-bezier(0.22, 1, 0.36, 1) 0.2s backwards; }

/* visible keyboard focus */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------------- Responsive ---------------- */

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .about-grid, .services-grid, .contact-grid, .career-box { grid-template-columns: 1fr; }
  .stamp { bottom: -0.9rem; }
}

@media (max-width: 760px) {
  .hero::before { left: 9px; }
  .main-nav {
    position: absolute;
    top: 72px;
    left: 0; right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule-strong);
    flex-direction: column;
    align-items: stretch;
    padding: 0.8rem 24px 1.2rem;
    gap: 0.2rem;
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 0.65rem 0; border-bottom: 1px dashed var(--rule); }
  .main-nav a:last-child { border-bottom: none; }
  .nav-cta { text-align: center; margin-top: 0.6rem; }
  .menu-toggle { display: block; }
  .field-grid { grid-template-columns: 1fr; }

  .brand-wordmark {
    font-size: 1.2rem;
  }

  .ledger-row {
    flex-wrap: wrap;
    gap: 0.25rem 1rem;
  }
  .ledger-row .v {
    white-space: normal;
    text-align: left;
  }
  .contact-card {
    overflow-x: hidden;
  }
}