html {
    scroll-behavior: smooth;
}

/* Page loading - opacity fade */
body {
    transition: opacity 0.3s ease-out;
}
body.page-loading {
    opacity: 0.9;
}
body:not(.page-loading) {
    opacity: 1;
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-in-up {
    animation: fadeInUp 0.5s ease-out forwards;
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

.feature-item {
    opacity: 0;
    animation: fadeInUp 0.4s ease-out forwards;
}

/* Bento card base */
.bento-card {
    background: #fff;
    border: 1.5px solid #e2e8f0;
    border-radius: 1.25rem;
    transition: all 0.25s ease;
}
.bento-card:hover {
    border-color: #cbd5e1;
    box-shadow: 0 8px 30px -8px rgba(0,0,0,0.08);
}

/* Header */
header.scrolled {
    box-shadow: 0 1px 12px -4px rgba(0,0,0,0.08);
}

/* Accent button */
.btn-accent {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: #0f172a;
    color: #fff;
    font-weight: 600;
    padding: 0.65rem 1.5rem;
    border-radius: 0.75rem;
    transition: all 0.2s ease;
}
.btn-accent:hover {
    background: #1e293b;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px -4px rgba(15,23,42,0.25);
}

.btn-accent-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1.5px solid #0f172a;
    color: #0f172a;
    font-weight: 600;
    padding: 0.5rem 1.25rem;
    border-radius: 0.75rem;
    transition: all 0.2s ease;
}
.btn-accent-outline:hover {
    background: #0f172a;
    color: #fff;
}

/* Trust pill */
.trust-pill {
    border-left: 3px solid #0f172a;
    transition: all 0.2s ease;
}
.trust-pill:hover {
    border-left-color: #2563eb;
    background: #f8fafc;
}

/* Feature row */
.feature-row {
    transition: all 0.2s ease;
}
.feature-row:hover {
    background: #f8fafc;
    transform: translateX(4px);
}

/* CTA card */
.cta-card {
    background: #0f172a;
    border-radius: 1.25rem;
    transition: all 0.25s ease;
}
.cta-card:hover {
    box-shadow: 0 12px 40px -12px rgba(15,23,42,0.35);
}

/* Product page hero */
.page-hero {
    background: #f8fafc;
    border-bottom: 1.5px solid #e2e8f0;
}

/* Preview frame */
.preview-frame {
    border: 1.5px solid #e2e8f0;
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.25s ease;
}
.preview-frame:hover {
    border-color: #cbd5e1;
    box-shadow: 0 8px 30px -8px rgba(0,0,0,0.08);
}

/* WhatsApp floating button */
.whatsapp-btn {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 999;
    width: 56px;
    height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px -2px rgba(37, 211, 102, 0.45);
    transition: all 0.25s ease;
}
.whatsapp-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 24px -2px rgba(37, 211, 102, 0.55);
}