/* Button — Figma: Tasarım sistemi › Buton (2:82)
   Variant: primary · secondary · inverse · text
   Size: l (56) · m (46) · s (36)
   State: hover · pressed · focus · disabled · loading */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-10);
  height: 56px;
  padding-inline: var(--space-24);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: 17px;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.003em;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color var(--duration-base) var(--ease-standard),
    color var(--duration-base) var(--ease-standard),
    transform var(--duration-base) var(--ease-standard),
    box-shadow var(--duration-base) var(--ease-standard);
}

.btn--m { height: 46px; padding-inline: var(--space-20); font-size: 15px; letter-spacing: -0.002em; }
.btn--s { height: 36px; padding-inline: var(--space-16); font-size: 14px; letter-spacing: -0.002em; gap: var(--space-6); }
.btn--full { width: 100%; }
/* A full-width label longer than a narrow phone wraps inside the button instead of spilling out */
.btn--full {
  height: auto;
  min-height: 56px;
  padding-block: var(--space-12);
  white-space: normal;
  text-align: center;
}
.btn--full.btn--m { min-height: 46px; padding-block: var(--space-10); }
.btn--full.btn--s { min-height: 36px; padding-block: var(--space-6); }

.btn:active:not([disabled]):not([aria-busy="true"]) { transform: scale(0.98); }
.btn:focus-visible { box-shadow: var(--shadow-focus); border-radius: var(--radius-pill); }

/* Primary */
.btn--primary { background: var(--color-brand-primary); color: var(--color-text-inverse); }
.btn--primary:hover { background: var(--color-brand-primary-hover); }
.btn--primary:active { background: var(--color-brand-primary-pressed); }

/* Secondary */
.btn--secondary {
  background: var(--color-surface-page);
  border-color: var(--color-border-strong);
  color: var(--color-text-primary);
}
.btn--secondary:hover { background: var(--color-state-hover-bg); }
.btn--secondary:active { background: var(--color-state-pressed-bg); }

/* Inverse (on dark backgrounds) */
.btn--inverse { background: var(--color-surface-page); color: var(--color-text-primary); }
.btn--inverse:hover { background: var(--color-state-hover-bg); }
.btn--inverse:active { background: var(--color-state-pressed-bg); }

/* Text */
.btn--text {
  height: auto;
  min-height: 56px;
  padding-inline: 0;
  background: none;
  color: var(--color-text-link);
}
.btn--text.btn--m { min-height: 46px; }
.btn--text.btn--s { min-height: 36px; }
.btn--text:hover { color: var(--color-text-link-hover); }
.btn--text:hover .btn__label { text-decoration: underline; text-underline-position: from-font; }
.btn--text:active { color: var(--color-text-link-pressed); }

/* Disabled */
.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* Loading: arrow hidden, spinner visible */
.btn__spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 1.5px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: btn-spin 0.8s linear infinite;
}
.btn--s .btn__spinner { width: 14px; height: 14px; }
.btn[aria-busy="true"] { cursor: progress; pointer-events: none; }
.btn[aria-busy="true"] .btn__spinner { display: inline-block; order: -1; }
.btn[aria-busy="true"] .btn__arrow { display: none; }

@keyframes btn-spin {
  to { transform: rotate(360deg); }
}