/* ==========================================================================
   Animation Performance (GPU compositing hints)
   ========================================================================== */
.hh-profile-card.card-entering,
.hh-profile-card.swipe-left,
.hh-profile-card.swipe-right {
    will-change: transform;
    backface-visibility: hidden;
}

/* ==========================================================================
   Offline Banner
   ========================================================================== */
.hh-offline-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(var(--hh-warning-rgb), 0.1);
    border-bottom: 1px solid rgba(var(--hh-warning-rgb), 0.25);
    color: var(--hh-warning);
    font-size: 0.8125rem;
    font-weight: 500;
    animation: slideDownBanner 0.3s ease;
}

@keyframes slideDownBanner {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ==========================================================================
   Reduced Motion Accessibility
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .hh-profile-card {
        transition: none !important;
    }

    .hh-loading-spinner {
        animation: none !important;
        border-top-color: var(--hh-primary);
        opacity: 0.6;
    }

    .hh-topbar-logo-icon {
        animation: none !important;
    }
}

/* BrowserCheck */
.browser-check-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--hh-gradient-dark-bg, #1a1a2e);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.browser-check-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.check-content {
    text-align: center;
    color: var(--hh-text-primary, #fff);
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--hh-glass-border-highlight, rgba(255, 255, 255, 0.2));
    border-top-color: var(--hh-primary, #e94560);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

.check-content p {
    font-size: 1rem;
    color: var(--hh-text-secondary, #a0aec0);
}

/* UnsupportedBrowser */
.unsupported-container {
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--hh-gradient-dark-bg, var(--hh-dark, #161618));
    padding: 20px;
}

.unsupported-card {
    background: var(--hh-glass-bg, var(--hh-dark-elevated));
    backdrop-filter: blur(20px);
    border-radius: var(--hh-radius-xl, 24px);
    padding: 48px;
    max-width: 560px;
    text-align: center;
    border: 1px solid var(--hh-glass-border, rgba(255, 255, 255, 0.1));
    box-shadow: var(--hh-shadow-lg, 0 25px 50px -12px rgba(0, 0, 0, 0.5));
}

.icon-container {
    width: 120px;
    height: 120px;
    background: var(--hh-gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: var(--hh-text-inverse, #fff);
}

.unsupported-container h1 {
    color: var(--hh-text-primary, #fff);
    font-size: 2rem;
    margin-bottom: 16px;
    font-weight: 700;
}

.main-message {
    color: var(--hh-text-secondary, #a0aec0);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 32px;
}

.reason-box {
    background: rgba(var(--hh-primary-rgb), 0.08);
    border: 1px solid rgba(var(--hh-primary-rgb), 0.25);
    border-radius: var(--hh-radius-lg, 12px);
    padding: 20px;
    margin-bottom: 32px;
    text-align: left;
}

.reason-box h3 {
    color: var(--hh-primary);
    font-size: 1rem;
    margin-bottom: 8px;
}

.reason-box p {
    color: var(--hh-text-secondary, #cbd5e0);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 8px;
}

.reason-detail {
    font-style: italic;
    color: var(--hh-text-muted, #a0aec0) !important;
    font-size: 0.85rem !important;
}

.supported-browsers {
    margin-bottom: 32px;
}

.supported-browsers h3 {
    color: var(--hh-text-primary, #fff);
    font-size: 1rem;
    margin-bottom: 16px;
}

.browser-grid {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.browser-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px;
    background: var(--hh-surface-soft-alt, rgba(255, 255, 255, 0.05));
    border: 1px solid var(--hh-glass-border, rgba(255, 255, 255, 0.1));
    border-radius: 12px;
    min-width: 100px;
}

.browser-item img {
    width: 40px;
    height: 40px;
}

.browser-item span {
    color: var(--hh-text-secondary, #a0aec0);
    font-size: 0.85rem;
}

.unsupported-container .action-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.unsupported-container .btn-primary {
    background: var(--hh-gradient-primary);
    color: var(--hh-text-inverse, #fff);
    padding: 14px 28px;
    border-radius: var(--hh-radius-lg, 12px);
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.unsupported-container .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--hh-shadow-md);
}

.unsupported-container .btn-secondary {
    background: transparent;
    color: var(--hh-text-secondary, #a0aec0);
    padding: 14px 28px;
    border-radius: var(--hh-radius-lg, 12px);
    font-weight: 600;
    border: 1px solid var(--hh-glass-border-highlight, rgba(255, 255, 255, 0.2));
    cursor: pointer;
    transition: all 0.2s;
}

.unsupported-container .btn-secondary:hover {
    background: var(--hh-surface-soft-hover, rgba(255, 255, 255, 0.1));
    color: var(--hh-text-primary, #fff);
}

.security-note {
    color: var(--hh-success);
    font-size: 0.9rem;
}