:root {
    --navy-950: #020617;
    --navy-900: #0f172a;
    --navy-800: #1e293b;
    --emerald-600: #059669;
    --emerald-700: #047857;
}

body {
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .font-serif {
    font-family: 'Playfair Display', serif;
}

.bg-navy-950 { background-color: var(--navy-950); }
.bg-navy-900 { background-color: var(--navy-900); }
.text-navy-900 { color: var(--navy-900); }

.filter-btn {
    padding: 0.5rem 1.25rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
    transition: all 0.3s ease;
}

.filter-btn.active, .filter-btn:hover {
    background-color: var(--emerald-600);
    border-color: var(--emerald-600);
    color: white;
}

/* Custom Accordion */
.accordion-header {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-header:hover {
    background-color: #f8fafc;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-item.active .accordion-content {
    max-height: 1000px;
}

.accordion-item.active .chevron {
    transform: rotate(180deg);
}

/* Campaign Cards */
.campaign-card {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.campaign-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
}

/* Timeline */
.timeline-dot {
    position: absolute;
    left: -9px;
    top: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--emerald-600);
    border: 4px solid white;
}

.timeline-line {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: #e2e8f0;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.reveal {
    animation: fadeIn 0.8s ease forwards;
}