/* ==========================================================================
   Naglis Kunickas – portfolio svetainė
   ========================================================================== */

:root {
  --color-ink: #17202A;
  --color-ink-soft: #4B5A61;
  --color-muted: #6B7B80;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F5F8F7;
  --color-border: #E3E9E8;

  --color-accent: #0E6E63;
  --color-accent-dark: #0A544B;
  --color-accent-light: #E7F1EF;

  --font-heading: "Poppins", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;

  --container-width: 1120px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 16px rgba(23, 32, 42, 0.06);
  --shadow-card-hover: 0 10px 28px rgba(23, 32, 42, 0.10);

  --transition: 220ms ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.2; margin: 0 0 0.5em; color: var(--color-ink); }
p { margin: 0 0 1em; color: var(--color-ink-soft); }
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { padding: 0; margin: 0; list-style: none; }
button { font: inherit; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 24px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: #fff;
  padding: 12px 20px;
  border-radius: 0 0 8px 0;
  z-index: 1000;
}
.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 2.5px solid var(--color-accent);
  outline-offset: 3px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover { background: var(--color-accent-dark); box-shadow: var(--shadow-card-hover); }
.btn-ghost {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-lg { padding: 15px 30px; font-size: 1rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}
.primary-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.primary-nav ul {
  display: flex;
  gap: 28px;
}
.primary-nav a:not(.btn) {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-ink-soft);
  position: relative;
  padding: 4px 2px;
  transition: color var(--transition);
}
.primary-nav a:not(.btn):hover { color: var(--color-accent); }
.nav-cta { display: inline-flex; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ---------- Sections ---------- */
.section {
  padding: 96px 0;
}
.section-alt { background: var(--color-bg-alt); }
.section-heading { max-width: 640px; margin-bottom: 48px; }
.section-heading.center { margin-inline: auto; text-align: center; }
.section-heading h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
.section-lead { font-size: 1.05rem; }
.eyebrow {
  display: inline-block;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 72px 0 96px;
  background:
    radial-gradient(circle at 85% 15%, var(--color-accent-light) 0%, transparent 55%),
    var(--color-bg);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-text h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.1rem);
  letter-spacing: -0.01em;
}
.hero-subtitle {
  font-size: 1.1rem;
  max-width: 46ch;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.hero-mockup {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card-hover);
}

/* ---------- About ---------- */
.about-inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: start;
}
.about-content p { font-size: 1.05rem; }
.about-highlights {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}
.about-highlights li {
  padding-left: 28px;
  position: relative;
  color: var(--color-ink-soft);
}
.about-highlights li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
}
.about-highlights strong { color: var(--color-ink); }

/* ---------- Services cards ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
  border-color: transparent;
}
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-light);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.card-icon svg { width: 26px; height: 26px; }
.card h3 { font-size: 1.1rem; }
.card p { font-size: 0.95rem; margin-bottom: 0; }

/* ---------- Portfolio ---------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.portfolio-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}
.portfolio-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}
.portfolio-media { background: var(--color-bg-alt); }
.portfolio-media img { width: 100%; }
.portfolio-body { padding: 24px; }
.portfolio-body h3 { font-size: 1.15rem; margin-bottom: 4px; }
.portfolio-meta {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 12px;
}
.portfolio-body p:not(.portfolio-meta) { font-size: 0.95rem; margin-bottom: 0; }

/* ---------- Process ---------- */
.process-list {
  display: grid;
  gap: 28px;
  max-width: 720px;
  margin-inline: auto;
}
.process-step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.process-number {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.process-step h3 { font-size: 1.05rem; margin-bottom: 4px; }
.process-step p { margin-bottom: 0; font-size: 0.95rem; }

/* ---------- Contact ---------- */
.section-contact { background: var(--color-bg-alt); }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact-details {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  color: var(--color-ink);
  transition: color var(--transition);
}
a.contact-item:hover { color: var(--color-accent); }
.contact-item svg { width: 22px; height: 22px; flex-shrink: 0; color: var(--color-accent); }

.social-links {
  display: flex;
  gap: 18px;
  margin-top: 28px;
}
.social-links a {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  border-bottom: 1.5px solid var(--color-border);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
}
.social-links a:hover { color: var(--color-accent); border-color: var(--color-accent); }

.contact-form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
}
.form-row { margin-bottom: 20px; }
.form-row label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
}
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font: inherit;
  color: var(--color-ink);
  background: var(--color-bg);
  transition: border-color var(--transition);
  resize: vertical;
}
.form-row input:focus,
.form-row textarea:focus {
  border-color: var(--color-accent);
  outline: none;
}
.form-note {
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-top: 12px;
  margin-bottom: 0;
}

/* ---------- Footer ---------- */
.site-footer {
  padding: 28px 0;
  border-top: 1px solid var(--color-border);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--color-muted);
}

/* ---------- Fade-in scroll animation ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms ease, transform 700ms ease;
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .about-inner { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-inner { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .primary-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 24px 24px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }
  .primary-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .primary-nav ul {
    flex-direction: column;
    gap: 4px;
  }
  .primary-nav ul a { display: block; padding: 12px 4px; }
  .nav-cta { margin-top: 12px; width: 100%; }

  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .section { padding: 64px 0; }
  .cards-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
}

@media (max-width: 400px) {
  .hero-actions .btn { width: 100%; }
  .contact-form { padding: 24px; }
}