/**
 * EULAI Links & Buttons
 *
 * Shared interactive components.
 * Uses global design tokens.
 */

/* ----------------------------------------------------------
   Button foundation
---------------------------------------------------------- */

.eulai-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.875rem;

    min-height: var(--eulai-control-height-md, 3rem);
    padding: 0.625rem 1.25rem;

    border: 1px solid transparent;
    border-radius: var(--eulai-control-radius, 2px);

    font-size: var(--eulai-font-size-small, 0.875rem);
    font-weight: 500;
    line-height: 1.4;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;

    cursor: pointer;

    transition:
        background-color 200ms ease,
        border-color 200ms ease,
        color 200ms ease;
}

/* ----------------------------------------------------------
   Primary button
---------------------------------------------------------- */

/* Reusable larger CTA size for page-end invitations */
.eulai-button--large {
    padding: 1rem 1.75rem;
}

.eulai-button--primary {
    background-color: var(--eulai-color-brand);
    border-color: var(--eulai-color-brand);
    color: var(--eulai-color-text-inverse);
}

/* Primary button — default light context */
.eulai-button--primary:hover {
    background-color: var(--eulai-color-text);
    border-color: var(--eulai-color-text);
    color: var(--eulai-color-text-inverse);
}

/* Primary button — dark context */
.eulai-section--dark .eulai-button--primary:hover,
.eulai-home-hero .eulai-button--primary:hover,
.eulai-home-final-cta .eulai-button--primary:hover {
    background-color: var(--eulai-color-brand-hover-dark, #c94b18);
    border-color: var(--eulai-color-brand-hover-dark, #c94b18);
    color: var(--eulai-color-text-inverse);
}


.eulai-button--primary:focus-visible {
    outline: 2px solid var(--eulai-color-brand);
    outline-offset: 3px;
}

/* ----------------------------------------------------------
   Secondary button — outlined, for dark backgrounds
---------------------------------------------------------- */

.eulai-button--secondary {
    background-color: transparent;
    border-color: var(--eulai-color-text-inverse, #fff);
    color: var(--eulai-color-text-inverse, #fff);
}

.eulai-button--secondary:hover {
    background-color: var(--eulai-color-surface, #fff);
    border-color: var(--eulai-color-surface, #fff);
    color: var(--eulai-color-text, #17191c);
}

.eulai-button--secondary:focus-visible {
    outline: 2px solid var(--eulai-color-text-inverse, #fff);
    outline-offset: 3px;
}

/* ----------------------------------------------------------
   Optional icon
---------------------------------------------------------- */

.eulai-button__icon {
    display: block;
    width: 1.125rem;
    height: 1.125rem;
    flex: 0 0 auto;
    transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* Arrow moves without changing button dimensions */
.eulai-button:hover .eulai-button__icon {
    transform: translateX(4px);
}


/* ----------------------------------------------------------
   Disabled state
---------------------------------------------------------- */

.eulai-button:disabled,
.eulai-button[aria-disabled="true"] {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ----------------------------------------------------------
   Reduced motion
---------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    .eulai-button {
        transition: none;
    }

    .eulai-button__icon {
        transition: none;
    }
}


/* =========================================================
   Text CTA — Global Component
   ========================================================= */

.eulai-text-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.875rem;

    color: var(--eulai-color-text-muted);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    text-decoration: none;

    cursor: pointer;
}

/* Light text variant */

.eulai-text-cta--light {
    color: var(--eulai-color-text-inverse);
}

/* Shared brand arrow */

.eulai-text-cta .eulai-button__icon {
    display: block;
    flex: 0 0 auto;
    width: 1.125rem;
    height: 1.125rem;
    color: var(--eulai-color-brand);

    transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* Hover / keyboard focus */

.eulai-text-cta:is(:hover, :focus-visible) {
    color: var(--eulai-color-text-muted);
}

.eulai-text-cta--light:is(:hover, :focus-visible) {
    color: var(--eulai-color-text-inverse);
}

.eulai-text-cta:is(:hover, :focus-visible) .eulai-button__icon {
    transform: translateX(4px);
}

.eulai-text-cta:focus-visible {
    outline: 2px solid var(--eulai-color-brand);
    outline-offset: 4px;
}

/* Reduced motion */

@media (prefers-reduced-motion: reduce) {
    .eulai-text-cta .eulai-button__icon {
        transition: none;
    }
}