/* =========================================================
   SIMILAR GROUP — corporate site
   Minimal, professional, bank-friendly
   ========================================================= */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f6f5f1;
  --color-surface: #ffffff;
  --color-text: #1a1f1d;
  --color-muted: #667069;
  --color-border: #e4e1d8;
  --color-accent: #0e4a3a;        /* deep forest green */
  --color-accent-hover: #0a3a2d;
  --color-accent-soft: #e8efe9;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(20, 30, 25, 0.04), 0 1px 1px rgba(20, 30, 25, 0.03);
  --shadow-md: 0 4px 20px rgba(20, 30, 25, 0.06);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;

  --max-width: 1200px;
  --spacing-section: clamp(4rem, 8vw, 7rem);
}

/* -------- Reset / Base -------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: var(--color-accent-hover); }

h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 0;
}

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

/* -------- Header -------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.brand:hover { color: var(--color-text); }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0;
}
.brand-name { font-size: 14px; }

.nav {
  display: flex;
  gap: 2rem;
  font-size: 14px;
}
.nav a {
  color: var(--color-muted);
  font-weight: 500;
}
.nav a:hover { color: var(--color-text); }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.lang-switch button {
  border: none;
  background: none;
  color: var(--color-muted);
  cursor: pointer;
  padding: 0.25rem 0.4rem;
  font: inherit;
  transition: color 0.2s ease;
}
.lang-switch button:hover { color: var(--color-text); }
.lang-switch button.is-active { color: var(--color-accent); }
.lang-divider { color: var(--color-border); }

@media (max-width: 860px) {
  .nav { display: none; }
  .header-inner { height: 64px; }
}

/* -------- Hero -------- */
.hero {
  padding: clamp(5rem, 12vw, 9rem) 0 clamp(4rem, 8vw, 6rem);
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(14, 74, 58, 0.06), transparent 60%),
    linear-gradient(180deg, #fbfaf6 0%, #ffffff 100%);
  border-bottom: 1px solid var(--color-border);
}
.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 1.5rem;
}
.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.75rem);
  line-height: 1.05;
  margin-bottom: 1.75rem;
}
.hero-title .subtle {
  color: var(--color-muted);
  font-style: italic;
  font-weight: 400;
}
.hero-lead {
  font-size: clamp(1.1rem, 1.6vw, 1.25rem);
  max-width: 720px;
  color: var(--color-muted);
  line-height: 1.65;
  margin-bottom: 2.5rem;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.hero-meta > div {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.meta-label {
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 600;
}
.meta-value {
  font-family: 'SF Mono', ui-monospace, Menlo, Consolas, monospace;
  font-size: 15px;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

/* -------- Sections -------- */
.section {
  padding: var(--spacing-section) 0;
}
.section-alt {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.section-eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 1rem;
}
.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  line-height: 1.15;
  max-width: 760px;
  margin-bottom: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
@media (max-width: 860px) {
  .grid-2 { grid-template-columns: 1fr; }
}

.prose {
  color: var(--color-muted);
  font-size: 1.0625rem;
  line-height: 1.75;
}

/* -------- Features -------- */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.feature {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.feature:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #d0cdc1;
}
.feature-num {
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
}
.feature h3 {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
  color: var(--color-text);
}
.feature p {
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* -------- Brand card -------- */
.brand-card {
  margin-top: 2rem;
  background: linear-gradient(135deg, #0e4a3a 0%, #0a3a2d 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem);
  position: relative;
  overflow: hidden;
}
.brand-card::after {
  content: "";
  position: absolute;
  top: -60%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.06), transparent 60%);
  pointer-events: none;
}
.brand-card-body {
  max-width: 640px;
  position: relative;
}
.brand-card p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 2rem;
  line-height: 1.7;
}

/* -------- Buttons -------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  background: #fff;
  color: var(--color-accent);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease, border-color 0.2s ease;
  text-decoration: none;
  font-family: inherit;
}
.btn:hover {
  background: #f6f5f1;
  color: var(--color-accent-hover);
  transform: translateY(-1px);
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  color: #fff;
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border-color: #c7c4b8;
}
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* -------- Details (dl) -------- */
.details {
  margin: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.details-row {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 2rem;
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
}
.details-row:last-child { border-bottom: none; }
.details dt {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  font-weight: 600;
}
.details dd {
  margin: 0;
  color: var(--color-text);
  font-size: 1rem;
}
@media (max-width: 700px) {
  .details-row {
    grid-template-columns: 1fr;
    gap: 0.25rem;
    padding: 1rem 1.25rem;
  }
}

/* -------- Contact -------- */
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin-top: 1.75rem;
}
.contact-row {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border);
}
.contact-row:first-child { padding-top: 0; }
.contact-row:last-child { padding-bottom: 0; border-bottom: none; }
.contact-label {
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.contact-value {
  color: var(--color-text);
  font-size: 0.95rem;
}
.contact-value a { color: var(--color-text); }
.contact-value a:hover { color: var(--color-accent); }

/* -------- Contact form -------- */
.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.form-field label {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 600;
}
.form-field input,
.form-field textarea {
  font: inherit;
  color: var(--color-text);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-field input:invalid:not(:placeholder-shown),
.form-field textarea:invalid:not(:placeholder-shown) {
  border-color: #c14545;
}

.form-consent {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.55;
  cursor: pointer;
}
.form-consent input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--color-accent);
  cursor: pointer;
  flex-shrink: 0;
}
.form-consent a {
  color: var(--color-accent);
  text-decoration: underline;
}

.contact-form .btn {
  align-self: flex-start;
  padding: 0.95rem 1.75rem;
}
.btn-loading { display: none; }
.contact-form.is-loading .btn-label { display: none; }
.contact-form.is-loading .btn-loading { display: inline; }
.contact-form.is-loading button { opacity: 0.7; cursor: wait; }

.form-status {
  font-size: 14px;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  display: none;
}
.form-status.is-success {
  display: block;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border: 1px solid rgba(14, 74, 58, 0.2);
}
.form-status.is-error {
  display: block;
  background: #fbeaea;
  color: #9a2a2a;
  border: 1px solid rgba(193, 69, 69, 0.2);
}

/* -------- Footer -------- */
.site-footer {
  background: #0e1715;
  color: rgba(255, 255, 255, 0.7);
  padding: 3.5rem 0 2rem;
  font-size: 13px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 860px) {
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
}
.footer-col { min-width: 0; }
.footer-brand {
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.03em;
  margin-bottom: 0.75rem;
}
.footer-legal {
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
  line-height: 1.7;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 13px;
}
.footer-links a:hover { color: #fff; }
.footer-right {
  color: rgba(255, 255, 255, 0.45);
  font-size: 12px;
  text-align: right;
}
@media (max-width: 860px) {
  .footer-right { text-align: left; }
}

/* -------- Cookie banner -------- */
.cookie-banner {
  position: fixed;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  z-index: 100;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 40px rgba(20, 30, 25, 0.15);
  max-width: 980px;
  margin: 0 auto;
  animation: cookie-in 0.4s ease-out;
}
.cookie-banner[hidden] { display: none; }
@keyframes cookie-in {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.cookie-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  padding: 1.5rem;
  align-items: center;
}
.cookie-text strong {
  display: block;
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}
.cookie-text p {
  display: inline;
  margin: 0;
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
}
.cookie-text a {
  font-size: 13px;
  text-decoration: underline;
}
.cookie-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}
.cookie-actions .btn {
  padding: 0.7rem 1.1rem;
  font-size: 13px;
}
@media (max-width: 700px) {
  .cookie-inner { grid-template-columns: 1fr; gap: 1rem; padding: 1.25rem; }
  .cookie-actions { flex-direction: column-reverse; }
  .cookie-actions .btn { width: 100%; justify-content: center; }
}

/* -------- Legal pages -------- */
.legal-page {
  padding: clamp(3rem, 6vw, 5rem) 0;
}
.legal-page .container { max-width: 820px; }
.legal-page h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 0.5rem;
}
.legal-page .legal-meta {
  color: var(--color-muted);
  font-size: 13px;
  margin-bottom: 2.5rem;
}
.legal-page h2 {
  font-size: 1.4rem;
  margin: 2.5rem 0 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}
.legal-page h2:first-of-type { border-top: none; padding-top: 0; }
.legal-page h3 {
  font-size: 1.1rem;
  margin: 1.75rem 0 0.75rem;
  font-family: var(--font-sans);
  font-weight: 600;
}
.legal-page p,
.legal-page li {
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.75;
}
.legal-page ul { padding-left: 1.25rem; margin-bottom: 1rem; }
.legal-page li { margin-bottom: 0.5rem; }
.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
}
.legal-back:hover { color: var(--color-accent); }

/* -------- Language visibility -------- */
html[data-lang="pl"] [data-lang-only="en"] { display: none; }
html[data-lang="en"] [data-lang-only="pl"] { display: none; }