:root {
  /* палитра из sppi.ivprf.ru (als-dark-theme, Material 3) */
  --bg: #09142c;
  --surface: #09142c;
  --container: #222c42;
  --container-high: #2f3543;
  --primary: #cf9400;
  --primary-dim: #a97a00;
  --on-primary: #14100a;
  --text: #ffffff;
  --text-muted: rgba(255, 255, 255, .6);
  --outline: #9a8f80;
  --outline-variant: rgba(255, 255, 255, .1);
  --error: #ff5a43;
  --radius-s: 8px;
  --radius-m: 12px;
  --radius-l: 16px;
  --font: "ALS Hauss", Roboto, "Helvetica Neue", Arial, system-ui, sans-serif;
  --mono: "PT Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── шапка ─────────────────────────────────────────────── */

.app-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(9, 20, 44, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--outline-variant);
}

.app-bar__inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: .01em;
}

.brand__mark {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(207, 148, 0, .15);
}

.brand__dot { color: var(--primary); }

.app-bar__meta {
  color: var(--text-muted);
  font-size: .8125rem;
}

/* ── каркас ────────────────────────────────────────────── */

.page {
  flex: 1;
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 20px 8px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  background: var(--container);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-l);
  padding: 20px;
}

.card--muted {
  background: transparent;
  border-style: dashed;
}

.card__title {
  margin: 0 0 6px;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: .005em;
}

.card__title--sm { font-size: 1rem; }

.card__hint {
  margin: 0 0 16px;
  color: var(--text-muted);
  font-size: .875rem;
  line-height: 1.45;
}

/* ── зона загрузки ─────────────────────────────────────── */

.drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 32px 20px;
  border: 1.5px dashed rgba(255, 255, 255, .22);
  border-radius: var(--radius-m);
  background: rgba(255, 255, 255, .02);
  cursor: pointer;
  text-align: center;
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}

.drop:hover,
.drop:focus-visible {
  border-color: var(--primary);
  background: rgba(207, 148, 0, .06);
}

.drop.is-over {
  border-color: var(--primary);
  background: rgba(207, 148, 0, .1);
  transform: scale(1.005);
}

.drop__icon {
  width: 32px;
  height: 32px;
  color: var(--primary);
  margin-bottom: 2px;
}

.drop__title { font-weight: 500; }

.drop__sub {
  color: var(--text-muted);
  font-size: .8125rem;
  font-family: var(--mono);
}

/* ── выбор типа вывода ─────────────────────────────────── */

.modes,
.sources {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 18px;
  padding: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--outline-variant);
}

.mode,
.source {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: .875rem;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}

.mode:hover,
.source:hover { color: var(--text); }

.mode.is-active,
.source.is-active {
  background: var(--primary);
  color: var(--on-primary);
}

.mode:focus-visible,
.source:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.mode-note {
  margin: 10px 0 0;
  font-size: .8125rem;
  color: var(--text-muted);
  font-family: var(--mono);
  line-height: 1.5;
}

.is-disabled {
  opacity: .4;
  pointer-events: none;
}

/* ── ввод координат текстом ───────────────────────────── */

.paste {
  width: 100%;
  min-height: 118px;
  max-height: 320px;
  resize: vertical;
  background: var(--container-high);
  color: var(--text);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-m);
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: .9375rem;
  line-height: 1.7;
  letter-spacing: .01em;
}

.paste::placeholder { color: rgba(255, 255, 255, .3); }

.paste:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.paste-hint {
  margin: 10px 0 0;
  font-size: .8125rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.paste-status {
  margin: 6px 0 0;
  min-height: 1.1em;
  font-size: .8125rem;
  font-family: var(--mono);
}

.paste-status.is-ok { color: #7ed3a2; }
.paste-status.is-error { color: #ffb3a8; }

/* ── элементы управления ───────────────────────────────── */

.row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 24px;
  margin-top: 16px;
}

.switch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.switch__track {
  position: relative;
  width: 40px;
  height: 22px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid var(--outline-variant);
  transition: background .18s ease, border-color .18s ease;
  flex: none;
}

.switch__track::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #d5d9e3;
  transition: transform .18s ease, background .18s ease;
}

.switch input:checked + .switch__track {
  background: var(--primary);
  border-color: var(--primary);
}

.switch input:checked + .switch__track::after {
  transform: translateX(20px);
  background: #14100a;
}

.switch input:focus-visible + .switch__track {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.switch__label { font-size: .9375rem; }

.check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: .9375rem;
}

.check input {
  appearance: none;
  width: 18px;
  height: 18px;
  margin: 0;
  border: 1.5px solid var(--outline);
  border-radius: 4px;
  background: transparent;
  display: grid;
  place-content: center;
  cursor: pointer;
}

.check input:checked {
  background: var(--primary);
  border-color: var(--primary);
}

.check input:checked::after {
  content: "";
  width: 10px;
  height: 6px;
  border-left: 2px solid #14100a;
  border-bottom: 2px solid #14100a;
  transform: rotate(-45deg) translateY(-1px);
}

.select {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9375rem;
  color: var(--text-muted);
  margin-left: auto;
}

.select__label { font-size: .875rem; }

select {
  appearance: none;
  background: var(--container-high);
  color: var(--text);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-s);
  padding: 7px 30px 7px 10px;
  font-family: inherit;
  font-size: .875rem;
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%),
                    linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
  background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

select:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ── кнопки ────────────────────────────────────────────── */

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.btn {
  appearance: none;
  border: 1px solid var(--outline-variant);
  background: var(--container-high);
  color: var(--text);
  font: inherit;
  font-size: .9375rem;
  font-weight: 500;
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, opacity .15s ease;
}

.btn:hover:not(:disabled) { border-color: var(--outline); }

.btn:disabled {
  opacity: .45;
  cursor: not-allowed;
}

.btn--primary {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--on-primary);
  font-weight: 600;
}

.btn--primary:hover:not(:disabled) {
  background: #e0a511;
  border-color: #e0a511;
}

.btn--ghost {
  background: transparent;
}

/* ── результат ─────────────────────────────────────────── */

.result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.result-head .card__title { margin: 0; }

.badge {
  font-family: var(--mono);
  font-size: .8125rem;
  color: var(--primary);
  background: rgba(207, 148, 0, .12);
  border: 1px solid rgba(207, 148, 0, .25);
  border-radius: 999px;
  padding: 2px 10px;
  white-space: nowrap;
}

.output {
  width: 100%;
  min-height: 104px;
  max-height: 280px;
  resize: vertical;
  background: var(--container-high);
  color: var(--text);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-m);
  padding: 14px;
  font-family: var(--mono);
  font-size: .9375rem;
  line-height: 1.7;
  letter-spacing: .01em;
}

.output::placeholder { color: rgba(255, 255, 255, .3); }

.output:focus { outline: 2px solid var(--primary); outline-offset: 1px; }

.alerts {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
  font-size: .875rem;
}

.alert {
  padding: 8px 12px;
  border-radius: var(--radius-s);
  background: rgba(255, 90, 67, .1);
  border: 1px solid rgba(255, 90, 67, .3);
  color: #ffb3a8;
}

.alert--info {
  background: rgba(207, 148, 0, .08);
  border-color: rgba(207, 148, 0, .25);
  color: #f0cd85;
}

.preview {
  margin-top: 16px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-m);
  background:
    linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px) 0 0 / 100% 20px,
    linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px) 0 0 / 20px 100%,
    #0d1930;
  padding: 8px;
}

.preview svg {
  display: block;
  width: 100%;
  height: 220px;
}

/* ── текст в карточке формата ──────────────────────────── */

.mono-note {
  font-family: var(--mono);
  font-size: .9375rem;
  line-height: 1.8;
  color: #dfe4ee;
  margin: 0 0 10px;
}

.accent { color: var(--primary); }

.footer {
  max-width: 880px;
  margin: 0 auto;
  padding: 16px 20px 28px;
  color: rgba(255, 255, 255, .4);
  font-size: .8125rem;
}

@media (max-width: 560px) {
  .app-bar__meta { display: none; }
  .card { padding: 16px; }
  .select { margin-left: 0; }
  .actions .btn { flex: 1 1 auto; }
  .drop { padding: 24px 14px; }
}



.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
}

.footer__link {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 255, 255, .25);
  padding-bottom: 1px;
}

.footer__link:hover {
  color: var(--primary);
  border-color: var(--primary);
}