:root {
    --navy: #0A0F1C;
    --gold: #D4AF37;
    --gold-light: #F4E8C1;
    --cream: #F9F9F7;
    --white: #FFFFFF;
    --slate-50: #F8FAFC;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--cream);
    color: var(--navy);
    font-family: 'Inter', sans-serif;
}

.text-gold {
    color: var(--gold);
}

.bg-gold {
    background-color: var(--gold);
}

.border-gold {
    border-color: var(--gold);
}

/* Premium Letter Aesthetic */
.premium-paper {
    background-color: var(--white);
    box-shadow: 0 40px 100px -20px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.premium-paper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--gold) 0%, #F5D17E 50%, var(--gold) 100%);
}

.highlight-gold {
    background: linear-gradient(120deg, rgba(212, 175, 55, 0.1) 0%, rgba(212, 175, 55, 0.2) 100%);
    padding: 0 0.2em;
    border-radius: 0.1em;
}

/* Custom Alerts & Containers */
.alert-premium {
    border-left: 4px solid var(--gold);
    padding: 1.5rem;
    background-color: var(--slate-50);
    border-radius: 0 0.5rem 0.5rem 0;
}

.alert-gold {
    border-left: 4px solid var(--gold);
    background-color: #FFFDF5;
}

.alert-navy {
    border-left: 4px solid var(--navy);
    background-color: #F8FAFC;
}

.alert-red {
    border-left: 4px solid #EF4444;
    background-color: #FEF2F2;
}

/* Nudge Bar Styles */
.nudge-bar {
    background: rgba(10, 15, 28, 0.03);
    border-top: 1px solid rgba(10, 15, 28, 0.08);
    border-bottom: 1px solid rgba(10, 15, 28, 0.08);
}

/* Typography refinements */
.font-serif {
    font-family: 'Merriweather', serif;
}

.italic-serif {
    font-variant-ligatures: common-ligatures;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
    letter-spacing: -0.02em;
}

/* Micro-animations */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.animate-fade-in {
    animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.btn-whatsapp {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-whatsapp:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px -10px rgba(37, 211, 102, 0.4);
}