/* ==========================================================================
   BYO-Me Reusable Components
   Component classes built on top of design tokens.
   ========================================================================== */

/* ======================================================================
   SPINNER — .bm-spinner
   ====================================================================== */
.bm-spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary-color);
    border-radius: var(--radius-full);
    animation: bm-spin 0.7s linear infinite;
}

.bm-spinner--sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.bm-spinner--lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

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

/* ======================================================================
   UTILITY — Fade-in animation for scroll reveals
   ====================================================================== */
.bm-fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
}

.bm-fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation delays for children */
.bm-stagger > :nth-child(1) { transition-delay: 0ms; }
.bm-stagger > :nth-child(2) { transition-delay: 75ms; }
.bm-stagger > :nth-child(3) { transition-delay: 150ms; }
.bm-stagger > :nth-child(4) { transition-delay: 225ms; }
.bm-stagger > :nth-child(5) { transition-delay: 300ms; }
.bm-stagger > :nth-child(6) { transition-delay: 375ms; }

/* ======================================================================
   MEDICAL DISCLAIMER — .medical-disclaimer
   Sticky banner shown once/day under the navbar (see medical-disclaimer.js)
   ====================================================================== */
.medical-disclaimer {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.875rem;
    background-color: #FFF5F5;
    border-bottom: 1px solid #f0c2c2;
    border-left: 3px solid var(--primary-color, #8B0000);
    color: #5a1a1a;
    font-size: 0.8125rem;
    line-height: 1.35;
    position: sticky;
    top: 0;
    z-index: 1020;
    transition: opacity 0.2s ease-out, transform 0.2s ease-out;
}

.medical-disclaimer[hidden] {
    display: none;
}

.medical-disclaimer--closing {
    opacity: 0;
    transform: translateY(-4px);
}

.medical-disclaimer-icon {
    flex-shrink: 0;
    font-size: 1rem;
}

.medical-disclaimer-text {
    flex: 1;
}

.medical-disclaimer-text strong {
    color: #3d0f0f;
}

.medical-disclaimer-close {
    flex-shrink: 0;
    background: transparent;
    border: none;
    color: #5a1a1a;
    padding: 0.25rem 0.5rem;
    cursor: pointer;
    line-height: 1;
    border-radius: 4px;
    opacity: 0.7;
    transition: opacity 0.15s ease;
}

.medical-disclaimer-close:hover,
.medical-disclaimer-close:focus {
    opacity: 1;
    background-color: rgba(139, 0, 0, 0.08);
    outline: none;
}

@media (max-width: 575.98px) {
    .medical-disclaimer {
        font-size: 0.75rem;
        padding: 0.4375rem 0.625rem;
        gap: 0.5rem;
    }
}

/* ======================================================================
   SW UPDATE BANNER — .sw-update-banner
   Floating bottom banner shown when a new service worker is waiting.
   Injected dynamically by js/pwa-install.js. Critical for TWA/WebView shells
   where the user cannot manually refresh.
   ====================================================================== */
.sw-update-banner {
    position: fixed;
    left: 50%;
    bottom: 1rem;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    background-color: #1f2937;
    color: #ffffff;
    border-radius: 9999px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
    font-size: 0.875rem;
    line-height: 1.3;
    z-index: 2000;
    max-width: calc(100vw - 2rem);
}

.sw-update-banner-icon {
    flex-shrink: 0;
    font-size: 1rem;
}

.sw-update-banner-text {
    flex: 1;
    min-width: 0;
}

.sw-update-banner-btn {
    flex-shrink: 0;
    background-color: var(--primary-color, #8B0000);
    color: #ffffff;
    border: none;
    padding: 0.375rem 0.875rem;
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.15s ease, transform 0.1s ease;
}

.sw-update-banner-btn:hover,
.sw-update-banner-btn:focus {
    background-color: #6e0000;
    outline: none;
}

.sw-update-banner-btn:active {
    transform: scale(0.97);
}

@media (max-width: 575.98px) {
    .sw-update-banner {
        font-size: 0.8125rem;
        padding: 0.5rem 0.75rem;
        gap: 0.5rem;
    }
    .sw-update-banner-btn {
        padding: 0.3125rem 0.75rem;
        font-size: 0.75rem;
    }
}