:root {
    --navy-900: #0f172a;
    --navy-800: #1e293b;
    --navy-600: #2563eb;
    --navy-500: #3b82f6;
    --navy-200: #bfdbfe;
    --navy-100: #dbeafe;
}

.bg-navy-900 { background-color: var(--navy-900); }
.bg-navy-800 { background-color: var(--navy-800); }
.text-navy-600 { color: var(--navy-600); }
.text-navy-500 { color: var(--navy-500); }
.text-navy-100 { color: var(--navy-100); }
.border-navy-200 { border-color: var(--navy-200); }
.focus-ring-navy-500\/20:focus { --tw-ring-color: rgba(59, 130, 246, 0.2); }
.focus-border-navy-500:focus { border-color: var(--navy-500); }

html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #f8fafc;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Smooth Transitions */
.solution-panel {
    transition: all 0.4s cubic-bezier(0.2, 1, 0.3, 1);
}

.reveal-text, .reveal-subtext, .reveal-btns {
    opacity: 0;
    transform: translateY(20px);
}

.problem-card {
    opacity: 0;
    transform: translateY(30px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.1);
}

.solution-panel {
    opacity: 0;
}

.engine-table table tr:last-child {
    border-bottom: none;
}

/* Floating Action Button Shadow */
.floating-cta {
    filter: drop-shadow(0 20px 30px rgba(34, 197, 94, 0.3));
}

@media (max-width: 768px) {
    .reveal-text {
        font-size: 3.5rem;
    }
}