/* ============================================================
   КАЛЬКУЛЯТОР МЕТАЛЛОПРОКАТА — МК СЕВЕРОЗАПАД
   Все стили изолированы внутри .mkcalc — виджет можно
   вставлять в любую страницу сайта без конфликтов стилей.
   ============================================================ */
.mkcalc, .mkcalc *, .mkcalc *::before, .mkcalc *::after { box-sizing: border-box; margin: 0; padding: 0; }

.mkcalc {
  --mk-dark: #1b1f24;
  --mk-dark-2: #262c33;
  --mk-steel: #47505a;
  --mk-line: #e3e6ea;
  --mk-bg: #f4f5f7;
  --mk-card: #ffffff;
  --mk-orange: #f5821f;
  --mk-orange-dark: #d96c0a;
  --mk-orange-soft: #fdf0e2;
  --mk-text: #22262b;
  --mk-muted: #7b838d;
  --mk-radius: 14px;
  --mk-font-display: 'Unbounded', 'Arial Black', sans-serif;
  --mk-font-body: 'Manrope', 'Segoe UI', Arial, sans-serif;

  font-family: var(--mk-font-body);
  color: var(--mk-text);
  max-width: 1020px;
  margin: 0 auto;
  background: var(--mk-card);
  border-radius: var(--mk-radius);
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(27,31,36,.12);
  border: 1px solid var(--mk-line);
}

/* ---------- Шапка ---------- */
.mkc-head {
  background:
    linear-gradient(115deg, rgba(27,31,36,.97) 55%, rgba(27,31,36,.82)),
    repeating-linear-gradient(-55deg, #2b323a 0 2px, #1b1f24 2px 14px);
  color: #fff;
  padding: 26px 30px 24px;
  position: relative;
}
.mkc-head::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0; height: 4px;
  background: linear-gradient(90deg, var(--mk-orange) 0 38%, #59626c 38% 40%, transparent 40%);
}
.mkc-head-top { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.mkc-logo {
  width: 46px; height: 46px; flex: 0 0 46px;
  background: var(--mk-orange);
  border-radius: 10px;
  display: grid; place-items: center;
}
.mkc-logo svg { width: 28px; height: 28px; }
.mkc-title { font-family: var(--mk-font-display); font-size: 21px; font-weight: 600; letter-spacing: .3px; line-height: 1.25; }
.mkc-sub { margin-top: 8px; color: #aeb6bf; font-size: 14px; max-width: 640px; line-height: 1.5; }

/* ---------- Сетка профилей ---------- */
.mkc-profiles {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  padding: 18px 22px 6px;
  background: var(--mk-bg);
}
.mkc-prof {
  appearance: none; border: 1.5px solid var(--mk-line); background: var(--mk-card);
  border-radius: 10px; padding: 10px 6px 9px;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  cursor: pointer; font-family: var(--mk-font-body);
  color: var(--mk-steel); font-size: 11.5px; font-weight: 600; line-height: 1.2;
  text-align: center;
  transition: border-color .15s, color .15s, transform .12s, box-shadow .15s;
}
.mkc-prof svg { width: 38px; height: 38px; stroke: currentColor; transition: stroke .15s; }
.mkc-prof:hover { border-color: #c8ced5; transform: translateY(-2px); box-shadow: 0 4px 14px rgba(27,31,36,.08); }
.mkc-prof.is-active {
  border-color: var(--mk-orange);
  color: var(--mk-dark);
  box-shadow: 0 0 0 1px var(--mk-orange), 0 6px 16px rgba(245,130,31,.18);
}
.mkc-prof.is-active svg { stroke: var(--mk-orange); }

/* ---------- Корпус: форма + результат ---------- */
.mkc-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 0;
  background: var(--mk-bg);
  padding: 14px 22px 22px;
}
.mkc-form {
  background: var(--mk-card);
  border: 1px solid var(--mk-line);
  border-radius: var(--mk-radius) 0 0 var(--mk-radius);
  border-right: none;
  padding: 22px 24px;
}
.mkc-form h2 {
  font-family: var(--mk-font-display);
  font-size: 15px; font-weight: 600; color: var(--mk-dark);
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 4px;
}
.mkc-form h2 .mkc-h-icon { width: 30px; height: 30px; stroke: var(--mk-orange); flex: 0 0 auto; }
.mkc-gost { font-size: 12px; color: var(--mk-muted); margin-bottom: 16px; }

.mkc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
.mkc-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.mkc-field label { font-size: 12.5px; font-weight: 700; color: var(--mk-steel); letter-spacing: .2px; }
.mkc-field .mkc-unit-wrap { position: relative; }
.mkc-input, .mkc-select {
  width: 100%;
  font: 600 15px var(--mk-font-body);
  color: var(--mk-text);
  border: 1.5px solid var(--mk-line);
  border-radius: 9px;
  background: #fbfbfc;
  padding: 11px 46px 11px 13px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.mkc-select { padding-right: 34px; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2347505a' stroke-width='2'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
}
.mkc-input:focus, .mkc-select:focus { border-color: var(--mk-orange); box-shadow: 0 0 0 3px rgba(245,130,31,.15); background: #fff; }
.mkc-input.is-error { border-color: #e04545; box-shadow: 0 0 0 3px rgba(224,69,69,.12); }
.mkc-unit {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  font-size: 12px; font-weight: 700; color: var(--mk-muted); pointer-events: none;
}
.mkc-err { font-size: 12px; color: #cf3b3b; font-weight: 600; min-height: 0; }
.mkc-err:empty { display: none; }

/* Переключатель режима */
.mkc-mode {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
  background: var(--mk-bg); border: 1px solid var(--mk-line);
  border-radius: 10px; padding: 4px; margin: 18px 0 14px;
}
.mkc-mode button {
  appearance: none; border: 0; background: transparent; cursor: pointer;
  font: 700 13px var(--mk-font-body); color: var(--mk-steel);
  padding: 9px 6px; border-radius: 7px; transition: background .15s, color .15s, box-shadow .15s;
}
.mkc-mode button.is-active { background: var(--mk-dark); color: #fff; box-shadow: 0 3px 10px rgba(27,31,36,.25); }

.mkc-actions { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.mkc-btn {
  appearance: none; cursor: pointer; border-radius: 10px;
  font: 700 14px var(--mk-font-body); letter-spacing: .2px;
  padding: 12px 22px; transition: background .15s, transform .12s, box-shadow .15s;
}
.mkc-btn-main {
  border: 0; color: #fff;
  background: linear-gradient(180deg, var(--mk-orange), var(--mk-orange-dark));
  box-shadow: 0 5px 16px rgba(245,130,31,.35);
}
.mkc-btn-main:hover { transform: translateY(-1px); box-shadow: 0 7px 20px rgba(245,130,31,.45); }
.mkc-btn-ghost { border: 1.5px solid var(--mk-line); background: #fff; color: var(--mk-steel); }
.mkc-btn-ghost:hover { border-color: #c8ced5; color: var(--mk-dark); }

/* ---------- Результат ---------- */
.mkc-result {
  background: var(--mk-dark);
  border-radius: 0 var(--mk-radius) var(--mk-radius) 0;
  color: #fff;
  padding: 22px 24px;
  display: flex; flex-direction: column;
  position: relative; overflow: hidden;
}
.mkc-result::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(-55deg, rgba(255,255,255,.025) 0 2px, transparent 2px 14px);
}
.mkc-result h3 {
  font-family: var(--mk-font-display); font-size: 13px; font-weight: 600;
  color: #9aa3ad; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 16px;
}
.mkc-res-row { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.09); }
.mkc-res-row:last-of-type { border-bottom: 0; }
.mkc-res-label { font-size: 12.5px; font-weight: 600; color: #9aa3ad; margin-bottom: 3px; }
.mkc-res-value { font-family: var(--mk-font-display); font-size: 20px; font-weight: 600; color: #fff; word-break: break-word; }
.mkc-res-value small { font-family: var(--mk-font-body); font-size: 13px; font-weight: 700; color: #9aa3ad; margin-left: 5px; }
.mkc-res-value.is-accent { color: var(--mk-orange); font-size: 24px; }
.mkc-res-note { margin-top: auto; padding-top: 14px; font-size: 11.5px; line-height: 1.5; color: #78818c; }

/* ---------- Подвал / CTA ---------- */
.mkc-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  padding: 16px 24px;
  background: var(--mk-card);
  border-top: 1px solid var(--mk-line);
}
.mkc-foot-text { font-size: 13.5px; color: var(--mk-steel); font-weight: 600; }
.mkc-foot-text b { color: var(--mk-dark); }
.mkc-tel {
  display: inline-flex; align-items: center; gap: 9px;
  font: 700 15px var(--mk-font-body); color: #fff; text-decoration: none;
  background: var(--mk-dark); border-radius: 10px; padding: 11px 20px;
  transition: background .15s, transform .12s;
}
.mkc-tel:hover { background: var(--mk-dark-2); transform: translateY(-1px); }
.mkc-tel svg { width: 16px; height: 16px; }

/* ---------- Адаптив ---------- */
@media (max-width: 900px) {
  .mkc-profiles { grid-template-columns: repeat(4, 1fr); }
  .mkc-body { grid-template-columns: 1fr; }
  .mkc-form { border-radius: var(--mk-radius) var(--mk-radius) 0 0; border-right: 1px solid var(--mk-line); border-bottom: none; }
  .mkc-result { border-radius: 0 0 var(--mk-radius) var(--mk-radius); }
}
@media (max-width: 560px) {
  .mkcalc { border-radius: 0; border-left: 0; border-right: 0; }
  .mkc-head { padding: 20px 16px 18px; }
  .mkc-title { font-size: 17px; }
  .mkc-sub { font-size: 13px; }
  .mkc-profiles { grid-template-columns: repeat(3, 1fr); padding: 14px 12px 4px; }
  .mkc-prof { font-size: 10.5px; }
  .mkc-prof svg { width: 32px; height: 32px; }
  .mkc-body { padding: 10px 12px 14px; }
  .mkc-form { padding: 18px 16px; }
  .mkc-result { padding: 18px 16px; }
  .mkc-grid { grid-template-columns: 1fr; }
  .mkc-actions .mkc-btn { flex: 1 1 auto; }
  .mkc-foot { padding: 14px 16px; }
  .mkc-tel { width: 100%; justify-content: center; }
}