/* Typography: Product Sans Việt Hoá với fallback Plus Jakarta Sans & Be Vietnam Pro */
body { 
    font-family: 'Product Sans', 'Plus Jakarta Sans', 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; 
    background-color: #f8fafc; 
    color: #0f172a; 
    overflow-x: hidden; 
    -webkit-font-smoothing: antialiased; 
}
.font-product { 
    font-family: 'Product Sans', 'Plus Jakarta Sans', 'Be Vietnam Pro', -apple-system, sans-serif; 
}

/* Glassmorphism */
.glass {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.gradient-text {
    background: linear-gradient(135deg, #e11d48 0%, #dc2626 50%, #b91c1c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-blue {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}
@keyframes pulseGlow {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
}

.animate-float { animation: float 5s ease-in-out infinite; }
.animate-glow { animation: pulseGlow 4s ease-in-out infinite; }

/* Feature Cards */
.pillar-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px -2px rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}
.pillar-card:hover {
    transform: translateY(-6px);
    border-color: #fca5a5;
    box-shadow: 0 20px 35px -10px rgba(220, 38, 38, 0.12);
}
.pillar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #ef4444, #f97316);
    opacity: 0;
    transition: opacity 0.3s;
}
.pillar-card:hover::before {
    opacity: 1;
}

.btn-primary {
    background: linear-gradient(135deg, #e11d48 0%, #dc2626 60%, #b91c1c 100%);
    box-shadow: 0 4px 18px rgba(220, 38, 38, 0.28);
    transition: all 0.25s;
    color: white;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.38);
}
.btn-outline {
    background: white;
    border: 1.5px solid #cbd5e1;
    color: #334155;
    transition: all 0.2s;
}
.btn-outline:hover {
    border-color: #dc2626;
    color: #dc2626;
    background: #fef2f2;
    transform: translateY(-1px);
}

/* Blob decorations */
.blob {
    position: absolute; filter: blur(80px); z-index: -1; opacity: 0.20;
    border-radius: 50%;
}