/* css chung */
p {
    margin: 0;
}

.imgfluid {
    display: block;
    width: 100%;
}

.active {
    background-color: #fff;
    color: #8d4df3 !important;
    font-weight: 700;
    font-size: 16px;

}

/* end css chung */
.academy__nav {
    box-shadow: 4px 0 10px 0 rgba(0, 0, 0, 0.05);
    z-index: 99;
    height: clamp(60px, 6vw, 100px);
}

.navbar {
    margin: 0 auto;
    padding: 0 50px;
}

.logo-teacher-header-container {
    max-width: clamp(70px, 10vw, 120px); /* Chiều rộng của container logo thay đổi linh hoạt */
}

.logo-teacher-header {
    width: auto; /* Giữ tỷ lệ chiều rộng của logo */
    max-width: 100%; /* Đảm bảo logo không vượt quá chiều rộng của container */
    max-height: 90%; /* Đảm bảo logo không vượt quá chiều cao của container */
    object-fit: contain; /* Giữ tỷ lệ của logo mà không làm logo bị méo */
}

.nav-tabs .nav-link {
    border: none;
}

.nav-tabs .nav-link:hover {
    color: #fff;
    border: none;
}

.premium__course--content-title {
    text-transform: uppercase;
    font-size: 28px;
    font-weight: bold;
    margin: 15px 0 20px 0;
    background-image: linear-gradient(90deg, #8d4df3, #0120d4);
    color: transparent;
    background-clip: text;
}

.premium__course {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.premium__course--login {
    position: sticky;
    top: 0; /* Đặt khoảng cách từ phía trên cùng */
    align-self: start; /* Giữ nó ở đầu của vùng cha */
}

.premium__course--content-synthetic {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 15px;
}

/* input slider */

.course--content-synthetic-title {
    font-size: 18px;
    margin: 0;
    font-weight: 600;
}

.premium__course--content-note {
    font-style: italic;
    color: rgb(241, 89, 89);
    font-weight: 500;
    font-size: 16px;
    margin-bottom: 10px;
}

.premium__course--list {
    margin-bottom: 15px;
}

.premium__course--list-item-title {
    text-transform: uppercase;
    font-size: 22px;
    background-image: linear-gradient(90deg, #8d4df3, #0120d4);
    color: transparent;
    background-clip: text;
    font-weight: bold;
    margin: 10px 0;
}

#premium__course--list-item-icon {
    color: #8d4df3;
    font-size: 18px;
    font-weight: 600;
}

.premium--course-item-icon-add {
    display: none;
    cursor: pointer;
}

.premium--course-item-icon-remove {
    display: inline-block;
    cursor: pointer;
}

.premium__course--list-info {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.premium__course--list-info p {
    display: flex;
    align-items: center;
    gap: 7px;
}

.premium__course--list-info iconify-icon {
    color: #8d4df3;
}

.premium__course--list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.premium__course--list-video {
    background-color: #f4f5f8;
    padding: 20px;
    border-radius: 10px;
    cursor: pointer;
    display: block;
    max-height: 500px;
    overflow: auto;
    transition: max-height 0.5s ease-out;
}

.premium__course--list-video::-webkit-scrollbar {
    display: none; /* Ẩn thanh cuộn trên Chrome, Safari */
}

.premium__course--list-video.hidden {
    max-height: 0;
    padding: 0;
    overflow: hidden;
}

.premium__course--items {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 12px;
    margin-bottom: 15px;
    height: 115px;
}

.premium__course--items:hover {
    color: white;
    background: linear-gradient(to right, #c2a9e9, #8897e9);
    padding: 5px;
    border-radius: 10px;
}

.course--item-image {
    overflow: hidden;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    position: relative;
}

.course--item-thumbnail {
    width: 100%;
    height: 100%;
    border-radius: 8px;
    object-fit: cover; /* Đảm bảo ảnh bao phủ hết khung */
}

.course--item-lesson-tag {
    display: flex;
    align-items: center;
    gap: 5px;
}

.course--item-lesson-outstanding,
.course--item-lesson-pro,
.course--item-lesson-free {
    display: flex;
    align-items: center;
    gap: 2px;
}

.course--item-lesson {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.course--item-lesson-outstanding {
    background-color: #f41e92;
    border-radius: 0.4rem;
    padding: 4px 12px;
    color: #fff;
    font-weight: 600;
    font-size: 14px;
}

.course--item-lesson-free {
    background-color: #0d824b;
    border-radius: 0.4rem;
    padding: 4px 12px;
    color: #fff;
    font-weight: 600;
    font-size: 14px;
}

.course--item-lesson-pro {
    border-color: #c09148;
    background: radial-gradient(50% 50% at 50% 50%, #2072c9 0, #103863 100%);
    color: #f5d31e;
    border-radius: 0.4rem;
    padding: 4px 12px;
    font-weight: 600;
    font-size: 14px;
}

.course--item-lesson-time {
    display: flex;
    align-items: center;
    gap: 5px;
}

.course--item-lesson-time iconify-icon {
    color: #8d4df3;
}

.premium__course--login-desc {
    text-align: center;
    text-decoration: underline;
    margin-bottom: 25px;
}

.premium__course--login-form {
    border-radius: 12px;

}

.premium__course--login-form-content {
    display: flex;
    align-items: center;
    gap: 12px;
    /* margin-top: 30px; */
    padding: 20px;
    border-radius: 10px 10px 0 0;
    background: linear-gradient(to right, #c2a9e9, #8897e9);
}

.course--login-form-content-img {
    width: 70px;
}

.course--login-form-content-desc {
    font-size: 20px;
    font-weight: bold;
    color: #fff;
}

.nav-item {
    width: 50%;
}

.premium__course--login-form-gg {
    width: 95%;

    /* display: flex;
    align-items: center;
    justify-content: center; */
    /* gap: 5px; */
    padding: 10px 0;
    border: 1px solid #ccc;
    border-radius: 15px;
    margin: 15px;
    background-color: unset;
}

.course--login-gg-title {
    font-weight: 500;
    color: #3b3b3b;
}

.premium__course--login-form-account {
    background: linear-gradient(to right, #c2a9e9, #8897e9);
    border-radius: 0 0 10px 10px;
    padding: 5px;
}

.nav-link {
    color: #fff;
    font-weight: 700;
}

#signup-now {
    border-radius: 0 0 10px 10px;
}

.signup-now-note {
    color: #747474;
    font-weight: 500;
    margin-bottom: 7px;
}

.signup-now-note span {
    color: #8d4df3;
    text-decoration: underline;
}

.btn-signup-now, .btn-signin-now {
    background: linear-gradient(to right, #c2a9e9, #8897e9);
    border: none;
    margin-bottom: 20px;
    color: #fff;
    font-weight: 600;
}

.btn-signup-now-title, .btn-signin-now-title {
    font-size: 20px;
    text-transform: uppercase;
}

.btn-signup-now-desc, .btn-signin-now-desc {
    font-size: 12px;
}

#signin-now {
    border-radius: 0 0 10px 10px;
}

.signin-now-note {
    color: #747474;
    font-weight: 500;
    margin-bottom: 7px;
}

.signin-now-note span {
    color: #8d4df3;
    text-decoration: underline;
}

.signin-now-btn-forgot {
    background-color: unset;
    border: none;
    font-weight: 600;
}

.error-message {
    color: red;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 10px;
}

.signin-now-message,
.signup-now-message {
    color: #000;
    margin-bottom: 10px;
    font-size: 14px;
}

.premium__course--container {
    margin-top: 80px;
}

@media (max-width: 576.98px) {
    /* Header */
    .academy__nav {
        height: auto;
        padding: 10px;
        flex-direction: column;
    }

    .navbar {
        padding: 0 20px;
    }

    .logo-teacher-header-container {
        width: 50px;
    }

    /* Nội dung khóa học */
    .premium__course {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 10px;
    }

    .premium__course--content-title {
        font-size: 20px;
        text-align: center;
    }

    .course--content-synthetic-title {
        font-size: 16px;
        text-align: center;
    }

    .premium__course--content-note {
        font-size: 14px;
        text-align: center;
    }

    /* Video và danh sách bài học */
    .premium__course--list-video {
        padding: 10px;
        max-height: 300px;
        overflow-y: auto;
    }

    .premium__course--items {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 10px;
        padding: 10px;
        border: 1px solid #ececec;
        border-radius: 8px;
        background-color: #fff;
    }

    .course--item-image {
        flex: 0 0 150px; /* Đặt chiều rộng cố định cho ảnh */
        height: 100px;
        overflow: hidden;
        border-radius: 8px;
    }

    .course--item-thumbnail {
        width: 100%;
        height: 84%;
        object-fit: cover;
        border-radius: 8px;
    }

    .course--item-lesson {
        flex: 1; /* Để nội dung chiếm hết khoảng còn lại */
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        gap: 5px;
    }

    .course--item-lesson-info {
        display: flex;
        flex-direction: column;
        gap: 5px;
    }

    .course--item-lesson-title {
        font-size: 16px;
        font-weight: bold;
    }

    .course--item-lesson-tag {
        display: flex;
        gap: 10px;
        flex-wrap: wrap; /* Đảm bảo các tag tự xuống dòng nếu không đủ không gian */
    }

    .course--item-lesson-time {
        display: flex;
        align-items: center;
        gap: 5px;
    }

    .course--item-lesson-free {
        margin-left: 20px;
    }

    /* Đăng ký và đăng nhập */
    .premium__course--login {
        margin-top: 20px;
    }

    .premium__course--login-form {
        padding: 10px;
        border-radius: 8px;
        margin-bottom: 70px;
    }

    .premium__course--login-form-content {
        flex-direction: column;
        text-align: center;
    }

    .course--login-form-content-img {
        width: 50px;
        margin-bottom: 10px;
    }

    .premium__course--login-form-account {
        padding: 10px;
    }

    .btn-signup-now, .btn-signin-now {
        font-size: 14px;
        padding: 10px;
    }

    .btn-signup-now-title, .btn-signin-now-title {
        font-size: 16px;
    }

    .btn-signup-now-desc, .btn-signin-now-desc {
        font-size: 12px;
    }

    /* Dropdown và menu */
    .dropdown-menu {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 772px) {
    .premium__course {
        grid-template-columns: repeat(1, 1fr);
    }
}