body {
    background: linear-gradient(135deg, #f0f4f8 0%, #e2e8f0 100%);
    background-attachment: fixed;
    -webkit-tap-highlight-color: transparent;
    font-family: 'Inter', sans-serif;
    color: #1a202c;
}

h1, h2, h3, h4, h5, h6, .font-heading {
    font-family: 'Outfit', sans-serif;
}

/* Unified Glass Panel */
.glass-panel {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 8px 32px rgba(0, 53, 106, 0.05);
    border-radius: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.glass-panel:hover {
    box-shadow: 0 12px 48px rgba(0, 53, 106, 0.08);
}

/* Unified Button */
.btn-primary {
    background-color: #00356a;
    color: white;
    border-radius: 0.75rem; /* rounded-xl */
    padding: 0.75rem 1.5rem; /* py-3 px-6 */
    font-size: 1rem; /* text-base */
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 4px 12px rgba(0, 53, 106, 0.2);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    cursor: pointer;
    border: none;
}

.btn-primary:hover {
    background-color: #004b93;
    transform: translateY(-2px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3), 0 8px 20px rgba(0, 53, 106, 0.3);
    color: white;
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 2px 4px rgba(0, 53, 106, 0.2);
}

/* Unified Input */
.sleek-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.9) !important;
    border: 1px solid #cbd5e1 !important;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s ease;
    border-radius: 0.5rem !important;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02) !important;
}

.sleek-input:focus {
    outline: none !important;
    background: rgba(255, 255, 255, 0.9) !important;
    border-bottom-color: #0088ff !important;
    box-shadow: 0 4px 12px rgba(0, 136, 255, 0.1) !important;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* Brand Panel Background for Login/Auth pages */
.brand-panel {
    background: linear-gradient(135deg, rgba(0,53,106,0.85), rgba(0,75,147,0.95)), url('https://images.unsplash.com/photo-1581092918056-0c4c3acd3789?auto=format&fit=crop&w=1400&q=80') center/cover no-repeat;
}

/* Sidebar Mobile Toggle */
@media (max-width: 768px) {
    #sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
    }
    #sidebar.open { transform: translateX(0); }
    #overlay.open { display: block; }
}