/* =========================================================
   Fullerton — Corporate Finance / M&A advisory
   Design language: ledger-inspired boutique finance.
   Deep ink-navy grounds, brass rules, serif display set with
   restraint, monospace used only for figures — like entries
   in a statement. Built on top of Bootstrap 5.
   ========================================================= */

:root {
  --navy-950: #0a1626;
  --navy-900: #0f2038;
  --navy-800: #16324f;
  --navy-700: #1f4368;
  --paper: #f6f3ec;
  --paper-dim: #efeadd;
  --ink: #1b1b18;
  --slate: #5b6472;
  --slate-light: #8791a0;
  --brass: #a9812f;
  --brass-light: #c9a45c;
  --brass-dim: rgba(169, 129, 47, 0.35);
  --line-on-dark: rgba(201, 164, 92, 0.25);
  --line-on-light: rgba(15, 32, 56, 0.12);

  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--paper);
  font-size: 1.05rem;
  line-height: 1.7;
}

::selection {
  background: var(--brass-light);
  color: var(--navy-950);
}

h1, h2, h3, h4,
.font-display {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--navy-950);
}

a {
  color: var(--navy-800);
  text-decoration-color: var(--brass-dim);
}
a:hover {
  color: var(--brass);
}

.text-brass { color: var(--brass) !important; }
.bg-paper { background-color: var(--paper) !important; }
.bg-paper-dim { background-color: var(--paper-dim) !important; }

/* ---------- Eyebrow / ledger labels ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brass);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--brass);
  display: inline-block;
}

/* ---------- Navbar ---------- */
.navbar-fullerton {
  background-color: var(--navy-950);
  border-bottom: 1px solid var(--line-on-dark);
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}
.navbar-fullerton .navbar-brand img {
  height: 34px;
  width: auto;
}
.navbar-fullerton .nav-link {
  font-family: var(--font-body);
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  color: rgba(246, 243, 236, 0.82);
  padding: 0.5rem 1rem !important;
  position: relative;
}
.navbar-fullerton .nav-link:hover,
.navbar-fullerton .nav-link.active {
  color: #fff;
}
.navbar-fullerton .nav-link.active::after {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0.15rem;
  height: 2px;
  background: var(--brass);
}
.lang-switch a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: rgba(246, 243, 236, 0.6);
  padding: 0 0.4rem;
  text-decoration: none;
}
.lang-switch a.active {
  color: var(--brass-light);
  font-weight: 600;
}
.lang-switch span.sep {
  color: rgba(246, 243, 236, 0.3);
}
.navbar-fullerton .navbar-toggler {
  border-color: var(--line-on-dark);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background-color: var(--navy-950);
  color: var(--paper);
  padding: 6.5rem 0 5rem;
  overflow: hidden;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(201, 164, 92, 0.055) 0,
    rgba(201, 164, 92, 0.055) 1px,
    transparent 1px,
    transparent 40px
  );
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 90% at 82% 20%, rgba(169, 129, 47, 0.16), transparent 70%);
  pointer-events: none;
}
.hero .hero-inner { position: relative; z-index: 1; }
.hero h1 {
  color: #fff;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.12;
  max-width: 16ch;
}
.hero .lead {
  color: rgba(246, 243, 236, 0.78);
  font-size: 1.15rem;
  max-width: 52ch;
}
.hero-rule {
  width: 64px;
  height: 2px;
  background: var(--brass);
  margin: 1.6rem 0;
}

/* ---------- Buttons ---------- */
.btn-brass {
  background-color: var(--brass);
  border-color: var(--brass);
  color: var(--navy-950);
  font-weight: 600;
  letter-spacing: 0.01em;
}
.btn-brass:hover {
  background-color: var(--brass-light);
  border-color: var(--brass-light);
  color: var(--navy-950);
}
.btn-outline-paper {
  border-color: rgba(246, 243, 236, 0.4);
  color: var(--paper);
}
.btn-outline-paper:hover {
  border-color: var(--paper);
  background-color: rgba(246, 243, 236, 0.08);
  color: #fff;
}
.btn-outline-navy {
  border-color: var(--navy-800);
  color: var(--navy-900);
}
.btn-outline-navy:hover {
  background-color: var(--navy-900);
  color: #fff;
}

/* ---------- Sections ---------- */
section { padding: 4.5rem 0; }
.section-title {
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  margin-bottom: 1.25rem;
}
.rule {
  border: none;
  border-top: 1px solid var(--line-on-light);
}

/* ---------- Ledger stat row (signature element) ---------- */
.ledger {
  border-top: 1px solid var(--brass-dim);
  border-bottom: 1px solid var(--brass-dim);
}
.ledger-item {
  padding: 1.75rem 1rem;
  border-left: 1px solid var(--line-on-light);
}
.ledger-item:first-child { border-left: none; }
.ledger-figure {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  color: var(--navy-950);
  font-weight: 600;
}
.ledger-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--slate);
  text-transform: uppercase;
  margin-top: 0.35rem;
}

/* ---------- Cards ---------- */
.card-service {
  border: 1px solid var(--line-on-light);
  background: #fff;
  padding: 2rem;
  height: 100%;
  transition: border-color .2s ease, transform .2s ease;
}
.card-service:hover {
  border-color: var(--brass);
  transform: translateY(-2px);
}
.card-service h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}
.card-service .num {
  font-family: var(--font-mono);
  color: var(--brass);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

/* ---------- Clients list ---------- */
.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0;
  border-top: 1px solid var(--line-on-light);
  border-left: 1px solid var(--line-on-light);
}
.client-grid span {
  border-right: 1px solid var(--line-on-light);
  border-bottom: 1px solid var(--line-on-light);
  padding: 1rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--navy-800);
  display: flex;
  align-items: center;
}

/* ---------- Q&A accordion ---------- */
.accordion-fullerton .accordion-button {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--navy-950);
  background: #fff;
}
.accordion-fullerton .accordion-button:not(.collapsed) {
  color: var(--navy-950);
  background: var(--paper-dim);
  box-shadow: none;
}
.accordion-fullerton .accordion-button:focus {
  box-shadow: none;
  border-color: var(--brass-dim);
}
.accordion-fullerton .accordion-button::after {
  filter: sepia(60%) saturate(300%) hue-rotate(-10deg);
}
.accordion-fullerton .accordion-item {
  border-color: var(--line-on-light);
}

/* ---------- Article (czy_sprzedac_firme) ---------- */
.article-body h2 {
  font-size: 1.3rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}
.article-body p { color: #2c2c28; }
.article-body strong { color: var(--navy-950); }

/* ---------- Contact ---------- */
.contact-block {
  background: var(--navy-950);
  color: var(--paper);
  padding: 3.5rem;
}
.contact-block a { color: var(--brass-light); }
.contact-block .addr {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: rgba(246, 243, 236, 0.75);
  line-height: 1.8;
}

/* ---------- Contact form ---------- */
.form-fullerton {
  background: #fff;
  border: 1px solid var(--line-on-light);
  border-top: 3px solid var(--brass);
  padding: 2.25rem;
}
.form-fullerton .form-label {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--navy-900);
  margin-bottom: 0.35rem;
}
.form-fullerton .form-control,
.form-fullerton .form-select {
  border-radius: 0;
  border-color: var(--line-on-light);
  padding: 0.65rem 0.85rem;
  font-family: var(--font-body);
}
.form-fullerton .form-control:focus,
.form-fullerton .form-select:focus {
  border-color: var(--brass);
  box-shadow: 0 0 0 0.2rem rgba(169, 129, 47, 0.15);
}
.form-fullerton .form-check-input:checked {
  background-color: var(--navy-900);
  border-color: var(--navy-900);
}
.form-fullerton .form-check-input:focus {
  border-color: var(--brass);
  box-shadow: 0 0 0 0.2rem rgba(169, 129, 47, 0.15);
}

/* ---------- Footer ---------- */
footer.site-footer {
  background: var(--navy-950);
  border-top: 1px solid var(--line-on-dark);
  color: rgba(246, 243, 236, 0.55);
  font-size: 0.85rem;
  padding: 1.75rem 0;
}
footer.site-footer a {
  color: rgba(246, 243, 236, 0.7);
}

/* ---------- Utility ---------- */
.kicker-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
}

@media (max-width: 767.98px) {
  .ledger-item { border-left: none; border-top: 1px solid var(--line-on-light); }
  .ledger-item:first-child { border-top: none; }
  .contact-block { padding: 2rem; }
}