:root {
    --bg-light: #FFF5F7;        /* White-Pinkish */
    --bg-dark: #040007;         /* Jet Black */
    --accent-pink: #DB2777;     /* Hot Pink */
    --accent-lavender: #D8B4FE; /* Lavender */
    --card-light: rgba(255, 255, 255, 0.8);
    --card-dark: rgba(15, 23, 42, 0.6);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    color: #1E293B;
    scroll-behavior: smooth;
    transition: background-color 0.4s ease;
}

.dark body {
    background-color: var(--bg-dark);
    color: #FDF2F8;
}

.font-code { font-family: 'Fira Code', monospace; }

/* Navigation Glassmorphism */
nav {
    background-color: #fff5f7b3;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(219, 39, 119, 0.1);
}

.dark nav {
    background-color: rgba(2, 6, 23, 0.7);
    border-bottom: 1px solid rgba(216, 180, 254, 0.1);
}

.nav-link::after {
    content: ''; position: absolute; width: 0; height: 2px;
    bottom: -4px; left: 0;
    background-color: var(--accent-pink); transition: width 0.3s ease;
}
.dark .nav-link::after { background-color: var(--accent-lavender); }
.nav-link:hover::after { width: 100%; }

.section-heading { 
    display: inline-block; 
    border-bottom: 4px solid var(--accent-pink); 
    padding-bottom: 4px; 
}
.dark .section-heading { border-color: var(--accent-lavender); }

/* Cards Styling */
.card {
    background-color: var(--card-light);
    border: 1px solid rgba(219, 39, 119, 0.1);
    backdrop-filter: blur(4px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.dark .card {
    background-color: var(--card-dark);
    border: 1px solid rgba(216, 180, 254, 0.05);
}

.card:hover { 
    transform: translateY(-10px); 
    box-shadow: 0 20px 40px rgba(219, 39, 119, 0.1);
    border-color: var(--accent-pink);
}

.dark .card:hover {
    box-shadow: 0 20px 40px rgba(216, 180, 254, 0.05);
    border-color: var(--accent-lavender);
}

/* Filter Buttons */
.filter-btn.active {
    background-color: var(--accent-pink) !important;
    color: white !important;
}
.dark .filter-btn.active {
    background-color: var(--accent-lavender) !important;
    color: #1E1B4B !important;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translate(-50%, 200%);
    transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 1000;
}
.toast.show { transform: translate(-50%, 0); }