/* ==========================================================================
   Metaglass - glavni stylesheet
   Mobile-first. Bez eksternih fontova/frameworkova radi maksimalne brzine.
   ========================================================================== */

:root {
  --color-ink: #12161b;
  --color-ink-soft: #1c232b;
  --color-steel: #4b5563;
  --color-steel-light: #6b7684;
  --color-mist: #f4f6f8;
  --color-mist-dark: #e9edf1;
  --color-white: #ffffff;
  --color-line: #e2e5ea;
  --color-accent: #1c7ed6;
  --color-accent-dark: #145ea8;
  --color-accent-light: #5fb6e8;
  --color-success: #2f9e5c;

  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --container-width: 1180px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(18, 22, 27, 0.08);
  --shadow-md: 0 8px 24px rgba(18, 22, 27, 0.12);
  --shadow-lg: 0 20px 48px rgba(18, 22, 27, 0.18);
  --topbar-h: 40px;
  --nav-h: 72px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-ink);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 0.5em; font-weight: 700; }
p { margin: 0 0 1em; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 1rem; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

.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;
}

:focus-visible {
  outline: 3px solid var(--color-accent-light);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 8px;
  top: -60px;
  background: var(--color-accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 8px; }

/* ---------- Top contact bar ---------- */
.topbar {
  background: var(--color-ink);
  color: #c9d2db;
  font-size: 0.85rem;
  /* changes for topbar to make it sticky*/
  position: fixed;
  z-index: 100;
  width: 100%;
  /* changes for topbar to make it sticky*/
}
.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: var(--topbar-h);
}
.topbar-contacts {
  display: flex;
  gap: 16px;
  overflow: hidden;
}
.topbar-contacts a {
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: color 0.15s ease;
}
.topbar-contacts a:hover,
.topbar-contacts a:focus-visible { color: #ffffff; }
.topbar-contacts svg { width: 15px; height: 15px; flex: none; }
.topbar-socials {
  display: flex;
  gap: 10px;
  flex: none;
}
.topbar-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  transition: background 0.15s ease, transform 0.15s ease;
}
.topbar-socials a:hover, .topbar-socials a:focus-visible {
  background: var(--color-accent);
  transform: translateY(-1px);
}
.topbar-socials svg { width: 14px; height: 14px; }

/* ---------- Main nav ---------- */

#glavni-sadrzaj {
  padding-top: 113px;
}
.site-header {
  position: fixed;
  top: 40px;
  width: 100%;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(180%) blur(6px);
  border-bottom: 1px solid var(--color-line);
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-ink);
  flex: none;
}
.brand img { width: 40px; height: 40px; }
.brand-name span { color: var(--color-accent); }

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  background: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  flex: none;
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

.nav-links {
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  /*top: calc(var(--topbar-h) + var(--nav-h));*/
  background: var(--color-white);
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0px 20px 0px;
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 0.25s ease, visibility 0s linear 0.25s;
  overflow-y: auto;
  border-top: 1px solid var(--color-line);
  height: fit-content;
  max-height: 60dvh;
}
.nav-links.is-open {
  transform: translateX(0);
  visibility: visible;
  transition: transform 0.25s ease;
}
.nav-links a {
  display: block;
  padding: 14px 6px;
  font-weight: 600;
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-line);
}
.nav-links a:hover, .nav-links a:focus-visible, .nav-links a[aria-current="page"] {
  color: var(--color-accent);
}
.nav-cta {
  margin-top: 16px;
}

/* Desktop nav */
@media (min-width: 960px) {
  .nav-toggle { display: none; }
  .nav-links {
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 4px;
    padding: 0;
    border: 0;
    transform: none;
    visibility: visible;
    background: transparent;
    overflow: visible;
  }
  .nav-links a {
    padding: 10px 14px;
    border-bottom: 0;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
  }
  .nav-links a:hover, .nav-links a:focus-visible { background: var(--color-mist); }
  .nav-links a[aria-current="page"] { color: var(--color-accent); }
  .nav-cta { margin-top: 0; margin-left: 8px; }
}

/* ---------- Nav dropdown "Usluge" (details/summary - radi bez JS) ---------- */
.nav-dropdown { position: relative; }
.nav-dropdown summary {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 6px;
  font-weight: 600;
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-line);
  cursor: pointer;
  list-style: none;
}
.nav-dropdown summary::marker { content: ""; }
.nav-dropdown summary::-webkit-details-marker { display: none; }
.nav-dropdown summary .chevron { width: 14px; height: 14px; transition: transform 0.15s ease; flex: none; }
.nav-dropdown[open] summary .chevron { transform: rotate(180deg); }
.nav-dropdown summary:hover, .nav-dropdown summary:focus-visible { color: var(--color-accent); }
.dropdown-panel { padding: 4px 0 8px 14px; }
.dropdown-panel a {
  display: block;
  padding: 12px 6px;
  font-weight: 500;
  font-size: 0.94rem;
  color: var(--color-steel);
  border-bottom: 1px solid var(--color-line);
}
.dropdown-panel a:hover, .dropdown-panel a:focus-visible, .dropdown-panel a[aria-current="page"] {
  color: var(--color-accent);
}

@media (min-width: 960px) {
  .nav-dropdown summary {
    padding: 10px 14px;
    border-bottom: 0;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
  }
  .nav-dropdown summary:hover, .nav-dropdown summary:focus-visible { background: var(--color-mist); color: var(--color-accent); }
  .dropdown-panel {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 260px;
    background: #fff;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px;
  }
  .dropdown-panel a {
    border-bottom: 0;
    border-radius: var(--radius-sm);
    padding: 11px 12px;
  }
  .dropdown-panel a:hover, .dropdown-panel a:focus-visible { background: var(--color-mist); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--color-accent-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  border-color: currentColor;
  color: var(--color-ink);
}
.btn-outline:hover, .btn-outline:focus-visible {
  background: var(--color-ink);
  color: #fff;
}
.btn-light {
  background: #fff;
  color: var(--color-ink);
}
.btn-light:hover, .btn-light:focus-visible { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.btn-block { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: #fff;
  background: var(--color-ink);
  overflow: hidden;
}
.hero-media {
  position: absolute;
  inset: 0;
}
.hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.85;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18,22,27,0.55) 0%, rgba(18,22,27,0.85) 100%);
}
.hero-inner {
  position: relative;
  padding: 64px 20px 56px;
}
.hero.hero-page .hero-inner { padding: 48px 20px 40px; }
.hero-eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-accent-light);
  background: rgba(95, 182, 232, 0.12);
  border: 1px solid rgba(95, 182, 232, 0.35);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.hero h1 {
  font-size: clamp(1.9rem, 5vw, 3.1rem);
  max-width: 18ch;
  margin-bottom: 0.4em;
}
.hero p {
  max-width: 60ch;
  color: #dbe2e9;
  font-size: 1.05rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 0.9rem;
  color: #cfd8e0;
}
.hero-meta strong { color: #fff; }

/* ---------- Sections ---------- */
.section { padding: 56px 0; }
.section-mist { background: var(--color-mist); }
.section-ink { background: var(--color-ink); color: #fff; }
.section-head { max-width: 62ch; margin-bottom: 36px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 10px;
}
.section-head h2 { font-size: clamp(1.5rem, 3.4vw, 2.2rem); }
.section-head p { color: var(--color-steel); }

/* ---------- Service cards grid ---------- */
.grid {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}
@media (min-width: 600px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

.card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover, .card:focus-within { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card-media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--color-mist-dark); }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.card:hover .card-media img { transform: scale(1.06); }
.card-body { align-items: center; padding: 20px 20px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-body h3 { font-size: 1.15rem; }
.card-body p { text-align: center; color: var(--color-steel); font-size: 0.94rem; margin-bottom: 0; flex: 1; }
.card-link {
  font-weight: 700;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}
.card-link svg { width: 16px; height: 16px; transition: transform 0.15s ease; }
.card:hover .card-link svg { transform: translateX(3px); }

/* Materials badges */
.badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badge {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--color-mist);
  color: var(--color-steel);
  border: 1px solid var(--color-line);
}

/* ---------- Feature list ---------- */
.feature-list { display: grid; gap: 18px; }
@media (min-width: 700px) { .feature-list { grid-template-columns: repeat(2, 1fr); } }
.feature-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.feature-icon {
  flex: none;
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(28,126,214,0.1);
  color: var(--color-accent);
  display: flex; align-items: center; justify-content: center;
}
.feature-icon svg { width: 22px; height: 22px; }
.feature-item h3 { font-size: 1.02rem; margin-bottom: 4px; }
.feature-item p { color: var(--color-steel); font-size: 0.92rem; margin-bottom: 0; }

/* ---------- Two column layout ---------- */
.split {
  display: grid;
  gap: 32px;
  align-items: center;
}
@media (min-width: 900px) {
  .split { grid-template-columns: 1fr 1fr; gap: 56px; }
  .split.reverse > *:first-child { order: 2; }
}
.split-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.split-media img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- Gallery ---------- */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}
.filter-btn {
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--color-line);
  background: #fff;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--color-steel);
  transition: all 0.15s ease;
}
.filter-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.filter-btn.is-active {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: #fff;
}

.gallery-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 700px) { .gallery-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1100px) { .gallery-grid { grid-template-columns: repeat(4, 1fr); } }

.gallery-item {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-mist-dark);
  border: 0;
  padding: 0;
  display: block;
  width: 100%;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.gallery-item:hover img, .gallery-item:focus-visible img { transform: scale(1.08); }
.gallery-item .cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 10px 12px 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(0deg, rgba(0,0,0,0.65), transparent);
  text-align: left;
}
.gallery-item.is-hidden { display: none; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 12, 15, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
}
.lightbox.is-open { display: flex; }
.lightbox-inner { max-width: 900px; width: 100%; }
.lightbox-inner img { width: 100%; border-radius: var(--radius-md); max-height: 78vh; object-fit: contain; background: #000; }
.lightbox-cap { color: #dbe2e9; text-align: center; margin-top: 14px; font-size: 0.95rem; }
.lightbox-close {
  position: absolute;
  top: 18px; right: 18px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 0;
  display: flex; align-items: center; justify-content: center;
}
.lightbox-close svg { width: 20px; height: 20px; }
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 46px; height: 46px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 0;
  display: flex; align-items: center; justify-content: center;
}
.lightbox-prev { left: 12px; }
.lightbox-next { right: 12px; }
.lightbox-nav svg { width: 20px; height: 20px; }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: linear-gradient(120deg, var(--color-ink) 0%, #26313d 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  text-align: center;
}
.cta-banner h2 { font-size: clamp(1.4rem, 3vw, 2rem); margin-bottom: 10px; }
.cta-banner p { color: #cfd8e0; max-width: 52ch; margin: 0 auto 24px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* ---------- Contact page ---------- */
.contact-layout {
  display: grid;
  gap: 32px;
}
@media (min-width: 940px) {
  .contact-layout { grid-template-columns: 1.1fr 0.9fr; align-items: start; }
}
.contact-card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; gap: 16px; margin-bottom: 16px; }
@media (min-width: 560px) { .form-row.two { grid-template-columns: 1fr 1fr; } }
.field label {
  display: block;
  font-weight: 700;
  font-size: 0.88rem;
  margin-bottom: 6px;
}
.field .required { color: #d64545; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-mist);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: #fff;
}
.field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 0.82rem; color: var(--color-steel-light); margin-top: 10px; }
.form-status {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  display: none;
}
.form-status.is-success { display: block; background: rgba(47,158,92,0.12); color: var(--color-success); }
.form-status.is-error { display: block; background: rgba(214,69,69,0.1); color: #b23a3a; }

.info-list { display: grid; gap: 18px; }
.info-item { display: flex; gap: 14px; }
.info-item .feature-icon { background: var(--color-mist); }
.info-item h3 { font-size: 1rem; margin-bottom: 2px; }
.info-item p { color: var(--color-steel); font-size: 0.92rem; margin-bottom: 0; }
.info-item a { color: var(--color-accent); font-weight: 600; }

.map-embed {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-line);
  margin-top: 24px;
}
.map-embed iframe { width: 100%; height: 260px; border: 0; display: block; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-ink);
  color: #b7c1cb;
  padding: 52px 0 0;
}
.footer-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
  padding-bottom: 40px;
}
@media (min-width: 700px) { .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; } }
@media (min-width: 1000px) { .footer-grid { grid-template-columns: 1.3fr 1fr 1fr 1fr; } }
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.2rem; color: #fff; margin-bottom: 12px; }
.footer-brand img { width: 36px; height: 36px; }
.footer-col h4 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col a:hover, .footer-col a:focus-visible { color: #fff; }
.footer-socials { display: flex; gap: 10px; margin-top: 16px; }
.footer-socials a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.footer-socials a:hover, .footer-socials a:focus-visible { background: var(--color-accent); }
.footer-socials svg { width: 17px; height: 17px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  justify-content: space-between;
  font-size: 0.82rem;
  color: #8b97a3;
}

/* ---------- Sticky mobile call button ---------- */
.mobile-call-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 90;
  background: var(--color-ink);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  padding: 10px 14px;
  gap: 10px;
  box-shadow: 0 -6px 20px rgba(0,0,0,0.2);
}
.mobile-call-bar a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.92rem;
}
.mobile-call-bar .call { background: var(--color-accent); color: #fff; }
.mobile-call-bar .msg { background: rgba(255,255,255,0.08); color: #fff; }
.mobile-call-bar svg { width: 18px; height: 18px; }
body { padding-bottom: 70px; overflow-x: hidden; }

@media (min-width: 960px) {
  .mobile-call-bar { display: none; }
  body { padding-bottom: 0; overflow-x: hidden; }
}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  font-size: 0.85rem;
  color: #cfd8e0;
  margin-bottom: 14px;
}
.breadcrumbs a { color: #cfd8e0; }
.breadcrumbs a:hover { color: #fff; }
.breadcrumbs span { margin: 0 6px; opacity: 0.6; }

/* ---------- Utility spacing ---------- */
.mt-0 { margin-top: 0; }
.text-center { text-align: center; }