body { 
    background-color: #0b0b0b; 
    color: #cfcfcf; 
    font-family: 'Poppins', sans-serif; 
}

.navbar { 
    background-color: rgba(0, 0, 0, 0.9); 
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1); 
    padding: 15px 0; 
}

.brand-container { 
    display: flex; 
    flex-direction: column; 
    line-height: 1.2; 
}

.brand-logo { 
    font-size: 1.4rem; 
    font-weight: 700; 
    color: #fff; 
    letter-spacing: 0.5px;
}

.brand-name { 
    font-size: 0.75rem; 
    color: #888; 
    letter-spacing: 1.5px; 
    text-transform: uppercase; 
}

.nav-link { 
    color: #aaa !important; 
    transition: 0.3s ease; 
}

.nav-link:hover { 
    color: #fff !important; 
}

.hero-section { 
    padding: 160px 20px 120px 20px; 
    text-align: center; 
    background: linear-gradient(rgba(0,0,0,0.75), rgba(0,0,0,0.85)), url('bg-anime.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    margin-top: 70px;
}

.section-title { 
    font-weight: 700; 
    margin-bottom: 40px; 
    color: #fff; 
    letter-spacing: 0.5px;
}

.about-card, .project-card { 
    background: rgba(255, 255, 255, 0.03); 
    backdrop-filter: blur(12px); 
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08); 
    border-radius: 16px;
    color: #d1d1d1;
    line-height: 1.8;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1); 
}

.about-card strong {
    color: #ffffff;
}

.project-card:hover { 
    transform: translateY(-6px); 
    border-color: rgba(255, 255, 255, 0.2); 
    background: rgba(255, 255, 255, 0.06);
}

.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.3);
    transition: 0.3s;
}

.btn-outline-light:hover {
    background-color: #fff;
    color: #000;
    border-color: #fff;
}

.custom-modal {
    background-color: #161616;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    color: #e0e0e0;
    border-radius: 16px;
}

.custom-modal .modal-title {
    color: #ffffff !important;
}

.modal-backdrop.show {
    opacity: 0.8;
}

footer { 
    padding: 30px 0; 
    text-align: center; 
    color: #666; 
    font-size: 0.85rem; 
    background-color: #000; 
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.hidden-section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.show-section {
    opacity: 1;
    transform: translateY(0);
}

.education-card {
    background: rgba(255, 255, 255, 0.03); 
    backdrop-filter: blur(12px); 
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08); 
    border-radius: 16px;
    color: #d1d1d1;
    padding: 2rem;
}

details.custom-accordion {
    width: 100%; 
    background: rgba(255, 255, 255, 0.04); 
    margin-bottom: 0.8rem; 
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px; 
    overflow: hidden; 
    color: #fafafa; 
    -webkit-tap-highlight-color: transparent; 
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

details.custom-accordion:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

summary.custom-summary {
    padding: 1.1rem 1.2rem; 
    display: block; 
    background: rgba(255, 255, 255, 0.02); 
    padding-left: 2.8rem; 
    position: relative; 
    cursor: pointer; 
    font-weight: 600;
    color: #ffffff;
    transition: color 0.3s ease;
}

summary.custom-summary:hover {
    color: #ffffff; 
}

summary.custom-summary::before {
    content: ''; 
    border-width: .4rem; 
    border-style: solid; 
    border-color: transparent transparent transparent #fff; 
    position: absolute; 
    top: 1.5rem; 
    left: 1.2rem; 
    transform: rotate(0); 
    transform-origin: .2rem 50%; 
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1); 
}

details.custom-accordion[open] > summary.custom-summary::before {
    transform: rotate(90deg); 
}

details.custom-accordion summary::-webkit-details-marker {
    display: none; 
}

.accordion-content {
    padding: 1rem 1.2rem 1.2rem 2.8rem;
    color: #b0b0b0;
    font-size: 0.95rem;
    line-height: 1.6;
    animation: fadeInContent 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInContent {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.social-card {
    background: rgba(255, 255, 255, 0.03); 
    backdrop-filter: blur(12px); 
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08); 
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.social-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.2);
}

.social-card i, .social-card span {
    transition: color 0.3s ease;
}

.social-card:hover i, .social-card:hover span {
    color: #ffffff;
}