/* Aniyab UI Buttons — from Figma AaniYab Components / Buttons
 *
 * Usage:
 *   <button type="button" class="ay-btn ay-btn--primary ay-btn--lg">
 *     <span class="ay-btn__icon" aria-hidden="true">…svg…</span>
 *     <span class="ay-btn__label">متن دکمه</span>
 *     <span class="ay-btn__icon" aria-hidden="true">…svg…</span>
 *   </button>
 *
 * Variants:  --primary | --outline | --neutral | --text | --white
 * Sizes:     --lg | --md (default) | --sm
 * States:    :hover / :disabled / .is-loading
 */

.ay-btn {
  --ay-btn-bg: transparent;
  --ay-btn-bg-hover: transparent;
  --ay-btn-bg-disabled: var(--ay-surface-disabled);
  --ay-btn-color: var(--ay-brand-primary);
  --ay-btn-color-hover: var(--ay-brand-primary-light);
  --ay-btn-color-disabled: var(--ay-text-disable);
  --ay-btn-border: transparent;
  --ay-btn-border-hover: transparent;
  --ay-btn-border-disabled: transparent;
  --ay-btn-spinner: currentColor;
  --ay-btn-height: 44px;
  --ay-btn-padding: 8px;
  --ay-btn-font-size: 14px;
  --ay-btn-line-height: 28px;
  --ay-btn-icon: 20px;

  box-sizing: border-box;
  position: relative;
  display: inline-flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 0;
  min-height: var(--ay-btn-height);
  height: var(--ay-btn-height);
  padding: var(--ay-btn-padding);
  margin: 0;
  border: 1px solid var(--ay-btn-border);
  border-radius: var(--ay-radius-btn, 8px);
  background: var(--ay-btn-bg);
  color: var(--ay-btn-color);
  font-family: var(--ay-font-family, dana, IRANSansfanum, Tahoma, sans-serif);
  font-style: normal;
  font-weight: 500;
  font-size: var(--ay-btn-font-size);
  line-height: var(--ay-btn-line-height);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  vertical-align: middle;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, opacity 0.15s ease;
}

.ay-btn:hover:not(:disabled):not(.is-loading):not([aria-disabled="true"]) {
  background: var(--ay-btn-bg-hover);
  border-color: var(--ay-btn-border-hover);
  color: var(--ay-btn-color-hover);
  text-decoration: none;
}

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

.ay-btn:disabled,
.ay-btn[disabled],
.ay-btn[aria-disabled="true"],
.ay-btn.is-disabled {
  background: var(--ay-btn-bg-disabled);
  border-color: var(--ay-btn-border-disabled);
  color: var(--ay-btn-color-disabled);
  cursor: not-allowed;
  pointer-events: none;
}

/* ----- Sizes ----- */

.ay-btn--lg {
  --ay-btn-height: 48px;
  --ay-btn-padding: 10px;
  --ay-btn-font-size: 14px;
  --ay-btn-line-height: 28px;
  --ay-btn-icon: 24px;
}

.ay-btn--md {
  --ay-btn-height: 44px;
  --ay-btn-padding: 8px;
  --ay-btn-font-size: 14px;
  --ay-btn-line-height: 28px;
  --ay-btn-icon: 20px;
}

.ay-btn--sm {
  --ay-btn-height: 36px;
  --ay-btn-padding: 6px;
  --ay-btn-font-size: 12px;
  --ay-btn-line-height: 24px;
  --ay-btn-icon: 18px;
}

/* ----- Parts ----- */

.ay-btn__label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  gap: 10px;
}

.ay-btn__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: var(--ay-btn-icon);
  height: var(--ay-btn-icon);
  color: inherit;
}

.ay-btn__icon svg,
.ay-btn__icon img {
  display: block;
  width: 100%;
  height: 100%;
}

.ay-btn__icon svg {
  fill: none;
  stroke: currentColor;
}

.ay-btn__icon svg[fill]:not([fill="none"]) {
  fill: currentColor;
  stroke: none;
}

/* ----- Variants ----- */

/* Solid primary */
.ay-btn--primary {
  --ay-btn-bg: var(--ay-brand-primary);
  --ay-btn-bg-hover: var(--ay-brand-primary-light);
  --ay-btn-bg-disabled: var(--ay-surface-disabled);
  --ay-btn-color: var(--ay-text-contrast);
  --ay-btn-color-hover: var(--ay-text-contrast);
  --ay-btn-color-disabled: var(--ay-text-disable);
  --ay-btn-border: var(--ay-brand-primary);
  --ay-btn-border-hover: var(--ay-brand-primary-light);
  --ay-btn-border-disabled: var(--ay-surface-disabled);
  --ay-btn-spinner: #FFFFFF;
}

.ay-btn--primary.is-loading {
  --ay-btn-bg: var(--ay-brand-primary-light);
  --ay-btn-border: var(--ay-brand-primary-light);
  --ay-btn-color: var(--ay-text-contrast);
}

/* Outline primary */
.ay-btn--outline {
  --ay-btn-bg: transparent;
  --ay-btn-bg-hover: transparent;
  --ay-btn-bg-disabled: transparent;
  --ay-btn-color: var(--ay-brand-primary);
  --ay-btn-color-hover: var(--ay-brand-primary-light);
  --ay-btn-color-disabled: var(--ay-text-disable);
  --ay-btn-border: var(--ay-brand-primary);
  --ay-btn-border-hover: var(--ay-brand-primary-light);
  --ay-btn-border-disabled: var(--ay-border-disabled);
  --ay-btn-spinner: var(--ay-brand-primary);
}

/* Outline neutral */
.ay-btn--neutral {
  --ay-btn-bg: transparent;
  --ay-btn-bg-hover: transparent;
  --ay-btn-bg-disabled: transparent;
  --ay-btn-color: var(--ay-text-main);
  --ay-btn-color-hover: var(--ay-text-main);
  --ay-btn-color-disabled: var(--ay-text-disable);
  --ay-btn-border: var(--ay-text-tertiary);
  --ay-btn-border-hover: var(--ay-text-main);
  --ay-btn-border-disabled: var(--ay-border-disabled);
  --ay-btn-spinner: var(--ay-text-secondary);
}

/* Ghost / text primary */
.ay-btn--text {
  --ay-btn-bg: transparent;
  --ay-btn-bg-hover: transparent;
  --ay-btn-bg-disabled: transparent;
  --ay-btn-color: var(--ay-brand-primary);
  --ay-btn-color-hover: var(--ay-brand-primary-light);
  --ay-btn-color-disabled: var(--ay-text-disable);
  --ay-btn-border: transparent;
  --ay-btn-border-hover: transparent;
  --ay-btn-border-disabled: transparent;
  --ay-btn-spinner: var(--ay-brand-primary-light);
}

/* White (solid white / dark label) */
.ay-btn--white {
  --ay-btn-bg: var(--ay-surface-white);
  --ay-btn-bg-hover: var(--ay-surface-white);
  --ay-btn-bg-disabled: var(--ay-surface-white);
  --ay-btn-color: var(--ay-text-title);
  --ay-btn-color-hover: var(--ay-text-main);
  --ay-btn-color-disabled: var(--ay-text-disable);
  --ay-btn-border: var(--ay-surface-white);
  --ay-btn-border-hover: var(--ay-surface-white);
  --ay-btn-border-disabled: var(--ay-surface-white);
  --ay-btn-spinner: var(--ay-text-main);
}

/* ----- Loading ----- */

.ay-btn.is-loading {
  color: transparent !important;
  pointer-events: none;
  cursor: wait;
}

.ay-btn.is-loading > *:not(.ay-btn__spinner):not(.ay-spinner) {
  visibility: hidden;
}

.ay-btn.is-loading .ay-btn__spinner,
.ay-btn.is-loading > .ay-spinner {
  visibility: visible;
}

/* Button-embedded spinner — matches Figma Button-Loading */
.ay-btn__spinner {
  --ay-spinner-size: 24px;
  --ay-spinner-tip: 3.6px;
  --ay-spinner-color: var(--ay-btn-spinner, #FFFFFF);

  position: absolute;
  inset: 0;
  margin: auto;
  box-sizing: border-box;
  width: var(--ay-spinner-size);
  height: var(--ay-spinner-size);
  border: 0;
  border-radius: 50%;
  background: transparent;
  animation: ay-spinner-rotate 0.75s linear infinite;
}

.ay-btn__spinner::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(
    from 180deg at 50% 50%,
    var(--ay-spinner-color) 0deg,
    var(--ay-spinner-color) 63.24deg,
    rgba(255, 255, 255, 0) 360deg
  );
  -webkit-mask: radial-gradient(
    farthest-side,
    transparent calc(100% - var(--ay-spinner-tip)),
    #000 calc(100% - var(--ay-spinner-tip) + 0.25px)
  );
  mask: radial-gradient(
    farthest-side,
    transparent calc(100% - var(--ay-spinner-tip)),
    #000 calc(100% - var(--ay-spinner-tip) + 0.25px)
  );
}

.ay-btn__spinner::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: var(--ay-spinner-tip);
  height: var(--ay-spinner-tip);
  margin-left: calc(var(--ay-spinner-tip) / -2);
  border-radius: 50%;
  background: var(--ay-spinner-color);
}

.ay-btn--sm .ay-btn__spinner,
.ay-btn--sm.is-loading .ay-btn__spinner {
  --ay-spinner-size: 16px;
  --ay-spinner-tip: 2.4px;
}

.ay-btn--lg .ay-btn__spinner,
.ay-btn--md .ay-btn__spinner {
  --ay-spinner-size: 24px;
  --ay-spinner-tip: 3.6px;
}


/* Block / full width helper */
.ay-btn--block {
  display: flex;
  width: 100%;
}

/* Anchor reset when used as <a class="ay-btn"> */
a.ay-btn {
  text-decoration: none;
}

a.ay-btn:hover {
  text-decoration: none;
}