/* ============================================================
   UAB TMK Investment — premium minimal brand styling
   Ink #0A0A0A + Gold #C9A961 + Snow #FAFAFA
   Playfair Display (display) + Inter (text)
   ============================================================ */

:root {
  --ink: #0A0A0A;
  --ink-soft: #1A1A1A;
  --ink-muted: #525252;
  --gold: #C9A961;
  --gold-soft: #DCC288;
  --gold-deep: #A88A48;
  --snow: #FAFAFA;
  --snow-warm: #F5F2EC;
  --line: rgba(10, 10, 10, 0.08);
  --line-strong: rgba(10, 10, 10, 0.16);
  --line-dark: rgba(250, 250, 250, 0.12);
  --shadow-sm: 0 1px 2px rgba(10, 10, 10, 0.04), 0 1px 1px rgba(10, 10, 10, 0.03);
  --shadow-md: 0 4px 12px rgba(10, 10, 10, 0.06), 0 2px 4px rgba(10, 10, 10, 0.04);
  --shadow-lg: 0 20px 40px rgba(10, 10, 10, 0.08), 0 8px 16px rgba(10, 10, 10, 0.05);

  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-text: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

  --maxw: 1240px;
  --gutter: clamp(20px, 4vw, 48px);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--snow);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.005em;
}
img { max-width: 100%; height: auto; display: block; }
a {
  color: var(--ink);
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
button { font: inherit; cursor: pointer; }

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

/* ---------- container ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- skip link ---------- */
.skip-link {
  position: absolute;
  top: -100px; left: 16px;
  background: var(--ink); color: var(--snow);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  z-index: 100;
  font-size: 14px;
  font-weight: 500;
}
.skip-link:focus { top: 16px; outline: 2px solid var(--gold); outline-offset: 2px; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(250, 250, 250, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
  gap: 24px;
}
.logo-link { display: inline-flex; align-items: center; }
.logo { height: 36px; width: auto; }
.logo-dark { display: none; }

.nav-primary {
  display: flex;
  gap: clamp(18px, 2.5vw, 36px);
  flex-wrap: wrap;
}
.nav-primary a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink-muted);
  position: relative;
  padding: 4px 0;
}
.nav-primary a:hover,
.nav-primary a:focus-visible {
  color: var(--ink);
}
.nav-primary a::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--gold);
  transition: right .25s var(--ease);
}
.nav-primary a:hover::after,
.nav-primary a:focus-visible::after { right: 0; }

.lang-switch {
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  transition: all .2s var(--ease);
  flex-shrink: 0;
}
.lang-switch:hover,
.lang-switch:focus-visible {
  background: var(--ink);
  color: var(--snow);
  border-color: var(--ink);
  outline: none;
}

/* ---------- typography ---------- */
.eyebrow {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.section-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(32px, 4.5vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0 0 32px;
  max-width: 18ch;
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: clamp(80px, 12vw, 160px) 0 clamp(80px, 10vw, 140px);
  overflow: hidden;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(201, 169, 97, 0.08) 0%, transparent 55%),
    linear-gradient(180deg, var(--snow) 0%, var(--snow-warm) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 880px;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(48px, 8vw, 104px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0 0 28px;
}
.hero-title::before {
  content: '';
  display: block;
  width: 56px;
  height: 2px;
  background: var(--gold);
  margin-bottom: 28px;
}
.hero-subtitle {
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.55;
  color: var(--ink-muted);
  max-width: 56ch;
  margin: 0 0 40px;
  font-weight: 400;
}
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-mark {
  position: absolute;
  right: -120px;
  top: 50%;
  transform: translateY(-50%);
  width: 560px;
  height: 560px;
  opacity: 0.06;
  pointer-events: none;
  z-index: 1;
}
.hero-mark img { width: 100%; height: 100%; }

@media (max-width: 900px) {
  .hero-mark { width: 380px; height: 380px; right: -180px; opacity: 0.04; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: all .25s var(--ease);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--ink);
  color: var(--snow);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--ink-soft);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
  outline: none;
}
.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: var(--ink);
  background: rgba(10, 10, 10, 0.03);
  outline: none;
}

/* ---------- sections base ---------- */
.section {
  padding: clamp(80px, 10vw, 140px) 0;
}
.section-about {
  background: var(--snow);
}
.about-body {
  max-width: 64ch;
  font-size: clamp(17px, 1.4vw, 19px);
  color: var(--ink-muted);
  line-height: 1.7;
}
.about-body p { margin: 0 0 18px; }
.about-body p:last-child { margin-bottom: 0; }

/* ---------- activities ---------- */
.section-activities {
  background: var(--snow-warm);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.activities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) {
  .activities-grid { grid-template-columns: 1fr; gap: 16px; }
}
.activity-card {
  background: var(--snow);
  padding: clamp(28px, 3vw, 40px);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  transition: all .3s var(--ease);
  position: relative;
}
.activity-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-strong);
}
.activity-num {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--gold-deep);
  letter-spacing: 0.1em;
  margin-bottom: 24px;
  font-weight: 500;
}
.activity-card h3 {
  font-family: var(--font-display);
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 500;
  margin: 0 0 16px;
  line-height: 1.2;
}
.activity-card p {
  color: var(--ink-muted);
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
}

/* ---------- portfolio ---------- */
.section-portfolio {
  background: var(--ink);
  color: var(--snow);
}
.section-portfolio .eyebrow { color: var(--gold); }
.section-portfolio .section-title { color: var(--snow); }
.portfolio-card {
  background: linear-gradient(180deg, var(--ink-soft) 0%, var(--ink) 100%);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  padding: clamp(36px, 4vw, 64px);
  max-width: 880px;
  position: relative;
  overflow: hidden;
}
.portfolio-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold-soft) 50%, var(--gold) 100%);
}
.portfolio-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.portfolio-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--gold);
  border: 1px solid var(--gold-deep);
  padding: 6px 12px;
  border-radius: 999px;
}
.portfolio-status {
  font-size: 13px;
  color: rgba(250, 250, 250, 0.6);
  letter-spacing: 0.02em;
}
.portfolio-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 500;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
  color: var(--snow);
}
.portfolio-body {
  color: rgba(250, 250, 250, 0.75);
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.65;
  margin: 0 0 32px;
  max-width: 58ch;
}
.portfolio-link {
  display: inline-flex;
  align-items: center;
  color: var(--gold);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: 0.01em;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.portfolio-link:hover,
.portfolio-link:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
  outline: none;
}

/* ---------- values ---------- */
.section-values {
  background: var(--snow);
}
.values-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 28px;
  margin-top: 12px;
}
@media (max-width: 1100px) {
  .values-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (max-width: 600px) {
  .values-grid { grid-template-columns: 1fr; gap: 28px; }
}
.value-item {
  padding-top: 4px;
}
.value-num {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--gold-deep);
  font-style: italic;
  margin-bottom: 18px;
  border-top: 1px solid var(--line-strong);
  padding-top: 16px;
  font-weight: 400;
}
.value-item h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  margin: 0 0 12px;
  line-height: 1.25;
}
.value-item p {
  color: var(--ink-muted);
  font-size: 14.5px;
  margin: 0;
  line-height: 1.55;
}

/* ---------- contact ---------- */
.section-contact {
  background: var(--snow-warm);
  border-top: 1px solid var(--line);
}
.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 900px) {
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
}
.contact-list {
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.contact-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  align-items: baseline;
}
@media (max-width: 600px) {
  .contact-row { grid-template-columns: 1fr; gap: 4px; }
}
.contact-row dt {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
  text-transform: uppercase;
}
.contact-row dd {
  margin: 0;
  font-size: clamp(17px, 1.4vw, 20px);
  color: var(--ink);
  font-weight: 400;
}
.contact-row dd a {
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
}
.contact-row dd a:hover,
.contact-row dd a:focus-visible {
  border-bottom-color: var(--gold);
  color: var(--gold-deep);
  outline: none;
}

/* rekvizitai card */
.rekvizitai-card {
  background: var(--snow);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: clamp(28px, 3vw, 36px);
  box-shadow: var(--shadow-sm);
}
.rekvizitai-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.rekvizitai-list {
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.rekvizitai-list > div {
  display: grid;
  grid-template-columns: 50% 50%;
  gap: 12px;
  font-size: 14px;
  line-height: 1.5;
}
.rekvizitai-list dt {
  color: var(--ink-muted);
  font-weight: 400;
}
.rekvizitai-list dd {
  margin: 0;
  color: var(--ink);
  font-weight: 500;
}

/* ---------- footer ---------- */
.site-footer {
  background: var(--ink);
  color: var(--snow);
  padding: clamp(48px, 6vw, 80px) 0 32px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 700px) {
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}
.footer-brand img {
  margin-bottom: 16px;
  opacity: 0.95;
}
.footer-tagline {
  font-family: var(--font-display);
  font-size: 18px;
  font-style: italic;
  color: rgba(250, 250, 250, 0.7);
  margin: 0;
  max-width: 24ch;
}
.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: rgba(250, 250, 250, 0.55);
}
.footer-meta a {
  color: rgba(250, 250, 250, 0.7);
  border-bottom: 1px solid rgba(250, 250, 250, 0.2);
  padding-bottom: 1px;
}
.footer-meta a:hover,
.footer-meta a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
  outline: none;
}
.footer-meta p { margin: 0; }

/* ---------- reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- focus visible ---------- */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- print friendly ---------- */
@media print {
  .site-header, .hero-mark, .lang-switch, .site-footer { display: none !important; }
  body { color: black; background: white; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}