/* Hiệu ứng card mạng xã hội giống dự án */
.social-card {
    background: #101522;
    border: 1.5px solid #1976d2;
    border-radius: 14px;
    box-shadow: 0 2px 16px rgba(25, 118, 210, 0.10);
    transition: transform 0.15s, box-shadow 0.15s;
    color: #fff;
}
.social-card:hover {
    transform: translateY(-4px) scale(1.06);
    box-shadow: 0 6px 32px rgba(25, 118, 210, 0.18);
    z-index: 2;
    color: #fff;
}
.social-card i {
    transition: color 0.18s, transform 0.18s;
}
.social-card:hover i {
    transform: scale(1.15);
    filter: brightness(1.2);
}
/*
    style.css - CSS tuỳ chỉnh cho Portfolio cá nhân
    Sử dụng font Poppins, tối ưu responsive, dễ bảo trì
*/


body {
    font-family: 'Roboto', Arial, sans-serif;
    background-color: #101522;
    color: #fff;
    padding-top: 80px; /* Tạo khoảng cách cho fixed navbar */
}


h2, .navbar-brand {
    font-weight: 600;
    color: #1976d2;
}


.navbar {
    font-size: 1.1rem;
    background: #181c2a !important;
    border-radius: 0 0 16px 16px;
    box-shadow: 0 2px 12px rgba(25, 118, 210, 0.08);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1030;
}

.navbar-brand {
    color: #1976d2 !important;
}

.nav-link {
    color: #e9ecef !important;
    transition: color 0.2s, background 0.2s;
    border-radius: 6px;
    margin: 0 2px;
}

.nav-link.active, .nav-link:hover {
    color: #fff !important;
    background: #1976d2;
}

section {
    scroll-margin-top: 80px; /* Đảm bảo cuộn tới đúng vị trí khi click nav */
    border-radius: 16px;
    box-shadow: 0 2px 24px rgba(25, 118, 210, 0.10);
    border: 1.5px solid #222b3a;
    background: #181c2a;
    padding: 2.5rem 0;
    margin-bottom: 2.5rem;
    color: #fff;
}


.card {
    background: #101522;
    border: 1.5px solid #1976d2;
    border-radius: 14px;
    box-shadow: 0 2px 16px rgba(25, 118, 210, 0.10);
    transition: transform 0.15s, box-shadow 0.15s;
}
.card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 6px 32px rgba(25, 118, 210, 0.18);
}
.card-title {
    font-weight: 600;
    color: #1976d2;
}
.card, .card-body, .card-text, .card-title {
    color: #fff;
}


footer {
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    background: #181c2a !important;
    border-radius: 16px 16px 0 0;
    border-top: 2px solid #1976d2;
}

/* Responsive cho ảnh About */

.profile-img {
    width: 220px;
    height: 220px;
    object-fit: cover;
    border-radius: 50%;
    border: 2.5px solid #1976d2;
    box-shadow: 0 2px 16px rgba(25, 118, 210, 0.12);
    display: block;
    margin-left: auto;
    margin-right: auto;
    transition: transform 0.18s, box-shadow 0.18s;
}
.profile-img:hover {
    transform: translateY(-4px) scale(1.08);
    box-shadow: 0 6px 32px rgba(25, 118, 210, 0.22);
    z-index: 2;
}

/* Tối ưu list kỹ năng */

#skills .list-group-item {
    background: #181c2a;
    font-weight: 500;
    font-size: 1rem;
    padding: 0.5rem 1.2rem;
    color: #fff;
    border: 1.5px solid #1976d2;
    margin: 0.2rem 0.4rem;
    border-radius: 8px;
    transition: background 0.2s, color 0.2s;
}
#skills .list-group-item:hover {
    background: #1976d2;
    color: #fff;
}


@media (max-width: 767.98px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    h2 {
        font-size: 1.5rem;
        color: #1976d2;
    }
    section {
        padding: 1.2rem 0.2rem;
        border-radius: 10px;
        color: #fff;
    }
    #skills .list-group-item {
        font-size: 0.95rem;
        padding: 0.4rem 0.7rem;
        color: #fff;
    }
}