/* UI Kit A · Obsidian Crystal (утверждено) */
:root {
  --ui-a-void: #0a1220;
  --ui-a-void-mid: #121a2e;
  --ui-a-void-deep: #0b1020;
  --ui-a-text: #ffffff;
  --ui-a-text-soft: #e2e8f0;
  --ui-a-accent: #569df3;
  --ui-a-accent-soft: #bfdbfe;
  --ui-a-scroll-from: #60a5fa;
  --ui-a-scroll-to: #312e81;
  --ui-a-radius-pill: 999px;
  --ui-a-radius-form: 28px;
  --ui-a-font: "Onest", system-ui, sans-serif;
  --ui-a-display: "Unbounded", "Onest", system-ui, sans-serif;
}

.ui-a-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  border: 0;
  border-radius: var(--ui-a-radius-pill);
  color: var(--ui-a-text) !important;
  font-family: var(--ui-a-font);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  text-decoration: none !important;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.12), transparent 40%),
    linear-gradient(135deg, var(--ui-a-void) 0%, var(--ui-a-void-mid) 45%, var(--ui-a-void-deep) 100%) !important;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.28),
    inset 0 -1px 0 rgba(0,0,0,0.45),
    inset 0 0 0 1px rgba(255,255,255,0.08),
    0 10px 28px rgba(15, 30, 70, 0.55),
    0 18px 40px rgba(59, 100, 200, 0.18) !important;
  transition: transform 0.2s ease, filter 0.2s ease;
  text-transform: none !important;
  letter-spacing: 0 !important;
  filter: none !important;
}
.ui-a-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.06) !important;
  color: var(--ui-a-text) !important;
}
.ui-a-btn:active { transform: translateY(0) scale(0.98); }

.ui-a-btn--sec {
  color: var(--ui-a-text-soft) !important;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.1), transparent 40%),
    linear-gradient(135deg, rgba(18, 26, 42, 0.92) 0%, rgba(12, 18, 32, 0.95) 100%) !important;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.22),
    inset 0 -1px 0 rgba(0,0,0,0.4),
    inset 0 0 0 1px rgba(255,255,255,0.1),
    0 10px 26px rgba(15, 30, 70, 0.4) !important;
}

.ui-a-btn--block { width: 100%; }

.ui-a-field {
  display: flex;
  width: 100%;
  border-radius: var(--ui-a-radius-pill);
  padding: 5px;
  margin-bottom: 12px;
  background: linear-gradient(180deg, rgba(255,255,255,0.16), rgba(255,255,255,0.04));
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.35),
    inset 0 -1px 0 rgba(0,0,0,0.2),
    0 14px 36px rgba(100, 140, 220, 0.18);
}
.ui-a-field .inner {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 42px;
  padding: 0 16px;
  border-radius: var(--ui-a-radius-pill);
  background: rgba(8, 12, 22, 0.88);
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.45);
}
.ui-a-field .inner input,
.ui-a-field .inner select {
  flex: 1;
  min-width: 0;
  border: 0 !important;
  background: transparent !important;
  color: #fff !important;
  font: inherit;
  outline: none;
  padding: 10px 0 !important;
  margin: 0 !important;
  min-height: 0 !important;
  box-shadow: none !important;
  border-radius: 0 !important;
}
.ui-a-field .inner input::placeholder { color: rgba(148, 163, 184, 0.85); }
.ui-a-field .inner select option { color: #0b1220; }

.ui-a-field-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 10px;
  margin-bottom: 12px;
}
.ui-a-field-row .ui-a-field { margin-bottom: 0; }

.ui-a-form {
  border-radius: var(--ui-a-radius-form);
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.1), transparent 40%),
    rgba(10, 14, 24, 0.72);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.22),
    inset 0 0 0 1px rgba(255,255,255,0.08),
    0 20px 50px rgba(30, 60, 140, 0.28);
  display: grid;
  gap: 4px;
  text-align: left;
}
.ui-a-form .ui-a-label {
  display: block;
  margin: 0 0 6px;
  font-size: 0.78rem;
  color: #c9d8e9;
}

.ui-a-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 10px 12px 10px 18px;
  border-radius: var(--ui-a-radius-pill);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.1), transparent 50%),
    rgba(10, 14, 24, 0.75);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.22),
    inset 0 0 0 1px rgba(255,255,255,0.08),
    0 16px 40px rgba(20, 40, 90, 0.35);
  backdrop-filter: blur(14px);
  border: 0;
}
.ui-a-nav .brand {
  font-family: var(--ui-a-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.ui-a-nav .links {
  display: flex;
  gap: 18px;
  color: #94a3b8;
  font-size: 0.86rem;
  font-weight: 500;
}
.ui-a-nav .links a {
  color: inherit;
  text-decoration: none;
}
.ui-a-nav .links a:hover,
.ui-a-nav .links a.is-on { color: #fff; }

.ui-a-check {
  display: inline-flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}
.ui-a-check input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.ui-a-check .mark {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border-radius: 7px;
  display: grid;
  place-items: center;
  background: rgba(86, 157, 243, 0.12);
  box-shadow: inset 0 0 0 1px rgba(86, 157, 243, 0.45);
  color: transparent;
  font-size: 0.75rem;
  font-weight: 700;
  transition: background 0.15s ease, color 0.15s ease;
}
.ui-a-check input:checked + .mark {
  background: rgba(86, 157, 243, 0.28);
  color: #bfdbfe;
}
.ui-a-check .txt {
  color: rgba(247,249,252,0.72);
  font-size: 0.78rem;
  line-height: 1.4;
  font-weight: 500;
}
.ui-a-check .txt a {
  color: #93c5fd !important;
  text-decoration: underline;
  text-underline-offset: 2px;
}

body.ui-a-scrollbars,
body.ui-a-scrollbars * {
  scrollbar-width: thin;
  scrollbar-color: var(--ui-a-scroll-from) rgba(255,255,255,0.04);
}
body.ui-a-scrollbars *::-webkit-scrollbar { width: 8px; height: 8px; }
body.ui-a-scrollbars *::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.04);
  border-radius: 999px;
}
body.ui-a-scrollbars *::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: linear-gradient(180deg, var(--ui-a-scroll-from), var(--ui-a-scroll-to));
  box-shadow: 0 0 12px rgba(86, 157, 243, 0.4);
}

@media (max-width: 700px) {
  .ui-a-field-row { grid-template-columns: 1fr; }
}