/* coursestyle.css */
:root {
    --brand-indigo: #6366f1;
}

body {
    scroll-behavior: smooth;
}

/* BRAND LOGO Logic */
.brand-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #0f172a !important; 
    background-image: none !important;
    color: white !important;
    font-weight: 800;
    border-radius: 12px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.dark .brand-logo {
    background-color: white !important;
    color: #0f172a !important;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
.dark ::-webkit-scrollbar-thumb { background: #334155; }

/* Animation Settings */
.lesson-group button i {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.lesson-group div[id^="plan-"] {
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

div[id*="-m"] {
    transition: all 0.4s ease-out;
}

.module-item {
    transition: all 0.2s ease;
}

/* New Section Specific Styles */
input::placeholder {
    color: #94a3b8;
    letter-spacing: 0.2em;
}

.dark input {
    color: white;
}
/* Footer Adjustments */
footer a {
    position: relative;
    display: inline-block;
}

footer a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: #6366f1; /* Indigo 500 */
    transition: width 0.3s ease;
}

footer a:hover::after {
    width: 100%;
}

.dark footer {
    background: radial-gradient(circle at top right, #0f172a, #0b1120);
}