/* ==========================================================================
   Shared components: buttons, inputs, utilities
   ========================================================================== */

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-200);
  padding: var(--spacing-300) var(--spacing-400);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-family-base);
  font-size: var(--font-size-16);
  font-weight: var(--font-weight-regular);
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition:
    background-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.05s ease;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-text-on-brand);
  box-shadow: 0 4px 4px rgba(0, 0, 0, 0.12);
}

.btn--primary:hover,
.btn--primary:focus {
  background-color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
}

.btn--primary:active {
  transform: translateY(1px);
}

.btn--ghost {
  background-color: var(--color-background-neutral);
  color: var(--color-text-default);
}

.btn--ghost:hover,
.btn--ghost:focus {
  background-color: var(--color-gray-04);
}

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

/* ---- Inputs ---- */
.input {
  width: 100%;
  padding: var(--spacing-300) var(--spacing-400);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-family: inherit;
  font-size: var(--font-size-16);
  color: var(--color-text-default);
  box-shadow: 0 4px 4px rgba(0, 0, 0, 0.08);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 89, 248, 0.15);
}

.input::placeholder {
  color: var(--color-text-muted);
}

/* ---- Utilities ---- */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}