.btn {
  --btn-bg: transparent;
  --btn-text: var(--c-text);
  --btn-border: var(--c-line-strong);

  position: relative;
  display: inline-flex;
  min-height: 3.25rem;
  gap: var(--sp-3);
  align-items: center;
  justify-content: center;
  padding: .8rem 1.25rem;
  overflow: hidden;
  color: var(--btn-text);
  background: var(--btn-bg);
  border: 1px solid var(--btn-border);
  border-radius: var(--r-pill);
  box-shadow: var(--sh-sm);
  font-weight: var(--fw-bold);
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  isolation: isolate;
  transition:
    transform var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.btn::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  opacity: 0;
  background: linear-gradient(120deg, transparent 18%, rgba(255,255,255,.24) 48%, transparent 78%);
  transform: translateX(-120%);
  transition:
    opacity var(--dur-fast) var(--ease-soft),
    transform var(--dur-slow) var(--ease);
}

.btn:hover {
  color: var(--btn-text);
  border-color: rgba(217,240,246,.36);
  box-shadow: var(--sh-md);
  transform: translateY(-2px);
}

.btn:hover::before {
  opacity: 1;
  transform: translateX(120%);
}

.btn:active {
  transform: translateY(0);
}

.btn--main {
  --btn-bg: var(--g-main);
  --btn-text: var(--c-bg-deep);
  --btn-border: transparent;
  box-shadow:
    0 .8rem 2rem rgba(0,166,214,.22),
    inset 0 1px rgba(255,255,255,.32);
}

.btn--main:hover {
  box-shadow:
    0 1rem 2.8rem rgba(0,166,214,.32),
    inset 0 1px rgba(255,255,255,.38);
}

.btn--ghost {
  background: rgba(255,255,255,.025);
  backdrop-filter: blur(12px);
}

.btn--text {
  min-height: auto;
  padding: 0;
  color: var(--c-main-2);
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.btn--text:hover {
  box-shadow: none;
  transform: none;
}

.btn__icon {
  width: 1.1rem;
  height: 1.1rem;
  flex: 0 0 auto;
}