/* uslugi.css - services page deltas on top of resheniya-fundament.css + gost.css.
 *
 * Reuses verbatim:
 *   - .rf-head, .rf-section, .rf-hero, .rf-drop, .rf-docs, .rf-bigcta - layout shells
 *   - .gp-faq, .acc, .acc-item - FAQ accordion
 *   - .tbl, .gp-table - GenericTable styling
 *
 * Adds .us-* deltas for things unique to the services page:
 *   .us-badge        - "Услуги" pill above h1 (same look as rs-badge)
 *   .us-head__top    - badge + updated date row
 *   .us-hero-tiles   - 6 service preview tiles inside hero left panel
 *   .us-tol          - 3-col tolerances info grid
 *   .us-steps        - 4-step process grid
 *   .us-cases        - case cards (1-2 with photo placeholder)
 *   .us-related      - 3-col related links cluster
 */

/* ========== HEAD additions ================================================ */
.us-head__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
  margin-bottom: 6px;
}
.us-badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 10px 4px;
  background: var(--c-accent-soft, #E6F0FB);
  color: var(--c-accent, #2A6FDB);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 4px;
}
.us-head__updated {
  font-size: 12px;
  color: var(--fg-3);
}
.us-head__updated .t-num { font-family: var(--font-mono); }

/* ========== HERO preview tiles (6 service kinds) =========================== */
.us-hero-tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.us-hero-tile {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 22px 20px;
  border-right: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
  min-height: 130px;
}
.us-hero-tile:nth-child(3n) { border-right: 0; }
.us-hero-tile:nth-last-child(-n+3) { border-bottom: 0; }
.us-hero-tile__ic {
  width: 32px; height: 32px;
  color: var(--fg-1);
  margin-bottom: 4px;
}
.us-hero-tile__t {
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-1);
  line-height: 1.3;
}
.us-hero-tile__s {
  font-size: 12px;
  color: var(--fg-3);
  font-family: var(--font-mono);
}

@media (max-width: 760px) {
  .us-hero-tiles { grid-template-columns: repeat(2, 1fr); }
  .us-hero-tile:nth-child(3n) { border-right: 1px solid var(--border-1); }
  .us-hero-tile:nth-child(2n) { border-right: 0; }
}

/* ========== TOLERANCES (3-col info) ======================================= */
.us-tol {
  background: #fff;
  border: 1px solid var(--border-1);
  border-radius: var(--r-3);
  padding: 26px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 28px;
}
.us-tol__col { min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.us-tol__lbl {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-3);
  font-weight: 600;
}
.us-tol__v {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 500;
  color: var(--fg-1);
  line-height: 1.2;
}
.us-tol__sub {
  font-size: 13px;
  color: var(--fg-2);
  line-height: 1.55;
}

@media (max-width: 760px) {
  .us-tol { grid-template-columns: 1fr; gap: 22px; }
}

/* ========== STEPS (4-step process) ======================================== */
.us-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.us-step {
  padding: 22px 24px;
  background: #fff;
  border: 1px solid var(--border-1);
  border-radius: var(--r-3);
}
.us-step__num {
  font-size: 13px;
  color: var(--c-accent);
  font-weight: 600;
  margin-bottom: 12px;
}
.us-step__ttl { font-size: 16px; font-weight: 600; color: var(--fg-1); margin-bottom: 8px; line-height: 1.3; }
.us-step__sub { font-size: 13px; color: var(--fg-2); line-height: 1.55; }

@media (max-width: 1000px) { .us-steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px)  { .us-steps { grid-template-columns: 1fr; } }

/* ========== CASES (1-2 cards with photo placeholder) ====================== */
.us-cases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 18px;
}
.us-case {
  display: grid;
  grid-template-columns: minmax(180px, 240px) 1fr;
  background: #fff;
  border: 1px solid var(--border-1);
  border-radius: var(--r-3);
  overflow: hidden;
}
.us-case__photo {
  position: relative;
  overflow: hidden;
  background: repeating-linear-gradient(45deg, #F4F6F9 0 12px, #EDF0F4 12px 24px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--c-steel-500, #8d99a8);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  min-height: 180px;
  text-align: center;
  padding: 24px;
}
.us-case__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.us-case__photo-tag {
  z-index: 1;
  position: absolute; top: 12px; left: 12px;
  background: #fff;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-family: var(--font-sans, sans-serif);
  font-weight: 600;
  letter-spacing: 0;
  color: var(--c-accent);
  text-transform: uppercase;
  border: 1px solid var(--border-1);
}
.us-case__body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.us-case__industry {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-accent);
  font-weight: 600;
}
.us-case__ttl  { font-size: 16px; font-weight: 600; color: var(--fg-1); line-height: 1.3; }
.us-case__desc { margin: 0; font-size: 13px; color: var(--fg-2); line-height: 1.55; }
.us-case__meta {
  display: flex; gap: 22px;
  padding-top: 10px;
  border-top: 1px solid var(--border-1);
  margin-top: 4px;
}
.us-case__meta > div { display: flex; flex-direction: column; gap: 2px; font-size: 11px; color: var(--fg-3); }
.us-case__meta b {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-1);
  letter-spacing: -0.01em;
}

@media (max-width: 720px) {
  .us-case { grid-template-columns: 1fr; }
  .us-case__photo { min-height: 140px; }
}

/* ========== RELATED cluster (3 cols) ====================================== */
.us-related {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.us-rel-col h3 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-3);
  font-weight: 600;
  margin: 0 0 12px;
}
.us-rel-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.us-rel-col li a {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--r-2, 6px);
  text-decoration: none;
  color: var(--fg-1);
  font-size: 14px;
  line-height: 1.4;
  transition: background 0.15s ease;
}
.us-rel-col li a:hover { background: var(--bg-soft); }
.us-rel-col li .url {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-3);
  margin-top: 2px;
}
.us-rel-col li svg { color: var(--fg-3); flex: 0 0 14px; }

@media (max-width: 900px) { .us-related { grid-template-columns: 1fr; } }