:root {
  --ec-color-accent: #7c3aed;
  --ec-color-accent-dark: #5b21b6;
  --ec-color-ink: #1f1d2b;
  --ec-color-muted: #6b7280;
  --ec-radius-md: 0.9rem;
  --ec-radius-pill: 999px;
}

.ec-btn {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
  justify-content: center;
  border-radius: var(--ec-radius-md);
  border: none;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.75rem 1.3rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  text-decoration: none;
}

.ec-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

.ec-btn--primary {
  background: var(--ec-color-accent);
  color: #fff;
}

.ec-btn--primary:hover,
.ec-btn--primary:focus-visible {
  background: var(--ec-color-accent-dark);
}

.ec-btn--ghost {
  background: transparent;
  color: var(--ec-color-accent);
  border: 1px solid rgba(124, 58, 237, 0.3);
}

.ec-btn--pill {
  border-radius: var(--ec-radius-pill);
}

.ec-btn--small {
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
}

.ec-btn__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.ec-icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: none;
  background: transparent;
  color: var(--ec-color-ink);
  border-radius: var(--ec-radius-pill);
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
  font-weight: 600;
}

.ec-icon-btn:hover,
.ec-icon-btn:focus-visible {
  color: var(--ec-color-accent-dark);
  background: rgba(124, 58, 237, 0.08);
}

.ec-icon-btn__badge {
  background: var(--ec-color-accent);
  color: #fff;
  border-radius: var(--ec-radius-pill);
  font-size: 0.75rem;
  padding: 0 0.35rem;
  line-height: 1.4;
}

.ec-icon-btn[data-style='signin'] .ec-icon-btn__label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
}

.ec-badge {
  display: inline-flex;
  align-items: center;
  border-radius: var(--ec-radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.15rem 0.55rem;
  background: rgba(124, 58, 237, 0.12);
  color: var(--ec-color-accent-dark);
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 0.85rem 1.7rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  text-decoration: none;
}

.btn:disabled,
.btn[disabled] {
  cursor: not-allowed;
  opacity: 0.6;
  transform: none;
  box-shadow: none;
  pointer-events: none;
}

.btn:hover,
.btn:focus-visible {
  text-decoration: none;
}

.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 30px rgba(124, 58, 237, 0.3);
}

@media (max-width: 600px) {
  .btn--primary {
    box-shadow: none;
  }
}

.btn--primary:hover,
.btn--primary:focus-visible {
  transform: translateY(-2px);
  background: var(--accent-dark);
  color: #fff;
}

.btn--primary:disabled,
.btn--primary[disabled] {
  background: var(--accent);
  color: #fff;
  box-shadow: none;
  transform: none;
}

.btn--ghost {
  background: transparent;
  border: 1px solid rgba(31, 29, 43, 0.2);
  color: var(--ink);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: rgba(124, 58, 237, 0.35);
  color: var(--accent);
  box-shadow: 0 8px 20px rgba(124, 58, 237, 0.18);
  transform: translateY(-2px);
}

.btn--ghost:disabled,
.btn--ghost[disabled] {
  border-color: rgba(31, 29, 43, 0.2);
  color: var(--ink);
  box-shadow: none;
  transform: none;
}

.btn--review {
  background: rgba(124, 58, 237, 0.12);
  border: 1px solid rgba(124, 58, 237, 0.35);
  color: var(--accent);
  box-shadow: 0 10px 24px rgba(124, 58, 237, 0.18);
}

.btn--review:hover,
.btn--review:focus-visible {
  background: rgba(124, 58, 237, 0.18);
  border-color: rgba(124, 58, 237, 0.55);
  color: var(--accent-dark);
  transform: translateY(-2px);
}

.btn--catalog {
  border: 1px solid rgba(124, 58, 237, 0.35);
  color: var(--accent);
  background: transparent;
  box-shadow: none;
  padding: 0.7rem 1.5rem;
}

.btn--catalog:hover {
  background: rgba(124, 58, 237, 0.08);
  border-color: rgba(124, 58, 237, 0.55);
}

.btn--accent {
  background: rgba(124, 58, 237, 0.12);
  color: var(--accent);
  border: 1px solid rgba(124, 58, 237, 0.3);
}

.btn--accent:hover {
  background: rgba(124, 58, 237, 0.18);
  color: var(--accent-dark);
}

.btn.small {
  padding: 0.6rem 1.25rem;
  font-size: 0.9rem;
}

.icon-btn {
  border: 1px solid rgba(31, 29, 43, 0.2);
  background: rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  padding: 0.45rem 1rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--ink);
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.icon-btn:hover,
.icon-btn:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.15);
}

.icon-btn:focus-visible {
  outline: none;
}

.icon-btn__label {
  position: relative;
  font-weight: 600;
}

.icon-btn__label--signin {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
}

.icon-btn--primary {
  border-color: transparent;
  background: rgba(124, 58, 237, 0.1);
  color: var(--accent);
  box-shadow: 0 10px 24px rgba(124, 58, 237, 0.25);
}

.icon-btn--primary:hover,
.icon-btn--primary:focus-visible {
  background: rgba(124, 58, 237, 0.15);
  border-color: rgba(124, 58, 237, 0.4);
  color: var(--accent-dark);
  box-shadow: 0 12px 28px rgba(124, 58, 237, 0.3);
}

.icon-btn--refresh {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  padding: 0;
  justify-content: center;
  border-color: transparent;
  background: rgba(124, 58, 237, 0.12);
  color: var(--accent);
  box-shadow: none;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.icon-btn--refresh:hover,
.icon-btn--refresh:focus-visible {
  background: rgba(124, 58, 237, 0.2);
  color: var(--accent-dark);
  border-color: transparent;
  transform: translateY(-1px);
}

.icon-btn--refresh svg {
  pointer-events: none;
}

.icon-btn--ghost {
  background: transparent;
  border-color: rgba(31, 29, 43, 0.2);
  color: var(--ink);
  box-shadow: none;
}

.icon-btn--ghost:hover,
.icon-btn--ghost:focus-visible {
  background: rgba(15, 23, 42, 0.05);
  border-color: rgba(15, 23, 42, 0.4);
  color: var(--accent);
  box-shadow: none;
}

.icon-btn--cart {
  font-weight: 600;
}