* {
    box-sizing: border-box;
}
body {
    margin: 0;
}
select {
    width: 100%;
    max-width: 900px;
    height: 29px;
    padding-right: 32px;
    font-size: 15px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.42857143;
    color: rgb(170, 170, 170);
    background-color: #fff;
    background-image: none;
    border: 1px solid rgb(170, 170, 170);
    border-radius: 4px;
    background-image: url("data:image/svg+xml; charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14'%3E%3Cpath fill='%23666' d='M7 9L3.5 5h7L7 9z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 2px center;
    background-size: 16px 16px;
    appearance: none;
    text-align: center;
}
.box {
    display: flex;
    justify-content: center;
    max-width: 1600px;
    min-width: 270px;
    margin-left: auto;
    margin-right: auto;
}
.box-req-1,
.box-req-2 {
    width: 100%;
    height: 220px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 20px;
    border: #3f3e3e00 1px solid;
    border-radius: 8px;
}
.box2 {
    display: block;
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
}
.in_box {
    max-width: 800px;
    min-width: 270px;
    border: 2px solid #3f3e3e;
    background-color: rgba(240, 240, 240, 0.644);
    border-radius: 8px;
    margin-top: 15px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 20px;
    padding: 0.5%;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease;
}
legend {
    width: 95%;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16px;
    font-weight: 400;
    text-align: center;
    background-color: #c7defc;
    padding: 10px;
    border: 2px solid #2b2b2b;
    border-radius: 6px;
}
.calc-name {
    margin-top: 0;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 7px;
}
.mini-menu {
    width: 50%;
}
.legend {
    text-align: start;
    display: block;
    width: 80%;
    font-size: 14px;
}
.legend-1,
.legend-2,
.legend-3,
.legend-4 {
    vertical-align: middle;
    border-radius: 3px;
    padding-left: 5px;
    font-weight: 500;
    color: #fff;
    display: inline-block;
    margin-bottom: 5px;
    width: 50%;
    background: linear-gradient(45deg, #3492d4, #2b95dc3a);
}

.legend-3 {
   
    background: linear-gradient(45deg, #ff2828, #ff282851);
}
.legend-1:hover,
.legend-2:hover,
.legend-3:hover,
.legend-4:hover {
    background: linear-gradient(45deg, #297db5, #2283c3);
}
.strelka {
    display: inline-block;
    vertical-align: middle;
    width: 20px;
    height: 15px;
    margin-left: 10px;
    background-color: #ff2828;
    clip-path: polygon(100% 0%, 0% 50%, 100% 100%, 100% 0%);
}


.flex-rutube {
    display: flex;
    align-items: center;
}
.button-rutube {
    font-size: 14px;
    background: radial-gradient(50% 70%, #e2e9f9, #c7defc);
}
.rutube {
    align-items: center;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 40px;
}
.img-rutube {
    width: 30px;
    height: 30px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}
.img-rutube-indiv {
    text-align: center;
}
.link-rutube {
    align-items: center;
    text-decoration: none;
    color: rgb(70, 70, 77);
    font-weight: 500;
    width: 100px;
}
.rutube:hover {
    background: radial-gradient(50% 50%, #6c94f7, #c7defc);
}
.add_select2 {
    display: block;
    margin-left: auto;
    margin-right: auto;
}
.flex_select2 {
    display: flex;
    max-width: 800px;
    min-width: 270px;
    margin-right: 2px;
    align-items: start;
    justify-content: center;
    margin-right: 2px;
}
.select2 {
    width: 70%;
}
.td1 {
    width: 70%;
}
.td2 {
    text-align: center;
    width: 18%;
    margin-right: 3px;
}
.t_in {
    border-spacing: 0 5px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16px;
}
.name_in {
    width: 60%;
}
.line_input {
    border-bottom: 1px solid #2b2b2b;
    padding-bottom: 5px;
    text-align: justify;
}
.input {
    width: 98%;
    height: 25px;
    font-size: 14px;
    border: 0;
    border-radius: 3px;
    vertical-align: top;
    background-color: rgb(255, 251, 251);
    margin-left: 3px;
}
.contayner1_soglashenie {
    max-width: 800px;
    min-width: 270px;
    border: 2px solid #3f3e3e;
    background-color: rgb(233, 231, 231);
    border-radius: 8px;
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 10px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 13pt;
    padding: 10px;
    text-align: justify;
}
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
}
input[type="number"],
input[type="number"]:hover,
input[type="number"]:focus {
    appearance: none;
    -moz-appearance: textfield;
}
.center {
    text-align: center;
    margin-top: 21px;
    margin-bottom: 21px;
}
.calc {
    width: 45%;
    height: 40px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 20px;
    border: 2px solid #2b2b2b;
    background-color: #c7defc;
    border-radius: 8px;
    font-weight: 500;
}
.pay_yoo {
    width: 25%;
    height: 40px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 10px;
    margin-bottom: 5px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 20px;
    border: 2px solid #2b2b2b;
    background-color: #81e799;
    border-radius: 8px;
    display: none;
}
.preview {
    width: 45%;
    height: 40px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
    font-size: 20px;
    border: 2px solid #2b2b2b;
    background-color: #c7defc;
    border-radius: 8px;
    display: none;
}
.predprosmotr {
    left: 50%;
    top: 0;
    bottom: 0;
    position: absolute;
    z-index: 999;
    background-color: #94b6e2;
    writing-mode: vertical-rl;
}
.predprosmotr1 {
    color: rgb(241, 241, 241);
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-weight: 600;
    font-size: 40px;
    padding-top: 50px;
}
.rezultDocx {
    width: 30%;
    height: 40px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
    font-size: 20px;
    border: 2px solid #2b2b2b;
    background-color: #c7defc;
    border-radius: 8px;
    display: none;
}
.rezult {
    width: 30%;
    height: 40px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
    font-size: 20px;
    border: 2px solid #2b2b2b;
    background-color: #c7defc;
    border-radius: 8px;
    display: none;
}
.open {
    width: 30%;
    height: 40px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    margin-top: 10px;
    margin-right: auto;
    font-size: 20px;
    border: 2px solid #2b2b2b;
    background-color: #c7defc;
    border-radius: 8px;
    display: none;
}
.but {
    width: 23px;
    height: 23px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-weight: 700;
    font-size: 15px;
    border: 1px solid #2b2b2b;
    background-color: #c7defc;
    border-radius: 6px;
    margin-left: 4px;
}
.delete {
    max-width: 28px;
    max-height: 28px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-weight: 600;
    font-size: 15px;
    border: 1px solid #2b2b2b00;
    background-color: #c7defc00;
    color: #c7defc00;
    border-radius: 6px;
    margin-left: 4px;
    padding-left: 10px;
    padding-right: 10px;
    margin-bottom: 5px;
}
.delete_false {
    max-width: 28px;
    max-height: 28px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-weight: 600;
    font-size: 15px;
    border: 1px solid #2b2b2b;
    background-color: #c7defc;
    border-radius: 6px;
    margin-left: 4px;
    padding-left: 10px;
    padding-right: 10px;
}
.calc:hover,
.clear:hover,
.rezult:hover,
.preview:hover,
.but:hover,
.open:hover,
.open_docx:hover,
.pay_yoo:hover,
.a:hover,
.add_S2:hover,
.delete_false:hover,
.rezultDocx:hover,
#confirmBtn:hover {
    background-color: #94b6e2;
}
.delete:hover {
    background-color: #94b6e200;
}
.pay_yoo:hover {
    background-color: #49905a;
}
.finish_box {
    display: none;
    border: 2px solid green;
}
.textarea {
    width: 90%;
    height: 40px;
    margin-top: 10px;
    display: block;
    resize: vertical;
    font-size: 14px;
    border: 0;
    border-radius: 5px;
    background-color: rgb(255, 251, 251);
    margin-left: auto;
    margin-right: auto;
}
.textarea_text {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-weight: 400;
    font-size: 15px;
    text-align: end;
    margin-right: 5%;
}
.rezalt {
    font-size: 14pt;
    margin-left: 5px;
}
.zag,
.zag1,
.zag2 {
    text-align: center;
    font-size: 18pt;
    font-weight: 700;
}
h1 {
    text-align: center;
    font-size: 16pt;
    font-weight: 700;
}
.h2 {
    text-align: center;
    font-size: 15pt;
    font-weight: 600;
}
.uzer {
    margin-top: 20px;
}
sup,
sub {
    font-size: small;
}
.table_formula {
    display: flex;
    justify-content: center;
    margin-top: 21px;
    margin-bottom: 21px;
    border: 0 solid #000;
}
.close1 {
    position: absolute;
    right: 15px;
    top: 10px;
    color: #aaa;
    font-size: 28px;
    font-weight: 700;
    cursor: pointer;
}
.close1:hover {
    color: #2c3e50;
}
.modal {
    display: none;
    position: fixed;
    z-index: 400;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}
.modal-content {
    background-color: #fefefe;
    margin: 10% auto;
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 10px;
    border-radius: 8px;
    padding-bottom: 10px;
    position: relative;
    z-index: 99999;
    max-width: 900px;
    min-width: 900px;
}
.noselect {
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    -o-user-select: none;
    user-select: none;
}
.modal-kassa {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}
.modal-content-kassa {
    background-color: #fefefe;
    margin: 10% auto;
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 300px;
    border-radius: 8px;
    max-width: 800px;
    min-width: 270px;
    position: relative;
    z-index: 11111;
    text-align: center;
}
.close {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 28px;
    font-weight: 700;
    cursor: pointer;
}
.close1 {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 28px;
    font-weight: 700;
    cursor: pointer;
}
.close:hover,
.close:focus {
    color: #000;
    text-decoration: none;
}
#paymentSuccessMessage {
    display: none;
    z-index: 9999999;
}
#paymentErrorMessage {
    display: none;
    z-index: 9999999;
}
.modalPay {
    position: fixed;
    z-index: 999999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}
.modal-contentPay {
    position: relative;
    background-color: #fff;
    margin: 10% auto;
    padding: 0;
    border-radius: 12px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
    overflow: hidden;
}
.modal-successPay .modal-headerPay {
    background: linear-gradient(135deg, #4caf50, #45a049);
    color: #fff;
    padding: 20px;
    text-align: center;
}
.modal-successPay .modal-bodyPay {
    padding: 30px 20px;
    text-align: center;
}
.modal-successPay {
    padding: 15px 20px;
    text-align: center;
    background-color: #f8f9fa;
}
.modal-errorPay .modal-headerPay {
    background: linear-gradient(135deg, #f44336, #d32f2f);
    color: #fff;
    padding: 20px;
    text-align: center;
}
.modal-errorPay .modal-bodyPay {
    padding: 30px 20px;
    text-align: center;
}
.modal-errorPay {
    padding: 15px 20px;
    text-align: center;
    background-color: #f8f9fa;
}
.modal-iconPay {
    font-size: 48px;
    margin-bottom: 15px;
}
.modal-titlePay {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
}
.modal-messagePay {
    font-size: 16px;
    color: #666;
    line-height: 1.5;
    margin-bottom: 20px;
}
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}
#confirmBtn {
    width: 45%;
    height: 40px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 20px;
    border: 2px solid #2b2b2b;
    background-color: #c7defc;
    border-radius: 8px;
    align-items: center;
    display: none;
}
.bold_font {
    font-weight: 500;
}
.flex {
    display: flex;
}
.flex1 {
    display: flex;
    justify-content: center;
}
#pay_check {
    width: 20px;
    margin-right: 10px;
}
.small_font {
    font-size: small;
}
.pod {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 15px;
    display: none;
}
h3,
h4 {
    text-align: center;
}
.img_formula_calcV {
    text-align: center;
}
.img_formula_calcV_stellazhi {
    text-align: center;
}
.img {
    max-width: 100%;
    height: 100%;
}
@media screen and (max-width: 1100px) {
    .img_formula_calcV_stellazhi {
        text-align: center;
        max-width: 80%;
        height: 100%;
    }
}
.add_in,
.div_in {
    text-align: center;
    margin-left: 0;
    margin-right: 0;
    padding-left: 0;
    padding-right: 0;
}
.name_bl1 {
    display: flex;
}
.name_bl {
    width: 98%;
    font-size: 12px;
    border: 0;
    border-radius: 3px;
    vertical-align: top;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 15px;
    padding-bottom: 3px;
}
.left_bl {
    width: 70%;
}
.right_bl {
    width: 30%;
}
.select2-container {
    margin-top: 2px;
}
.but_center {
    text-align: center;
}
.add_S2 {
    width: 90%;
    height: 30px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 17px;
    font-weight: 400;
    padding-bottom: 2px;
    border: 2px solid #2b2b2b;
    background-color: #c7defc;
    border-radius: 8px;
    text-align: center;
}
@media (max-width: 1330px) {
    .box {
        display: block;
    }
    .box-req-1,
    .box-req-2,
    .box-req-3,
    .box-req-4,
    .st {
        display: none;
    }
}
@media (max-width: 950px) {
    .modal-content1 {
        margin: 5% auto;
        width: 80%;
    }
}
@media (max-width: 700px) {
    .modal-content1 {
        margin: 5% auto;
        width: 90%;
    }
}
@media (max-width: 634px) {
    .calc,
    .modal-close-btn1,
    .preview,
    .rezult,
    .open,
    .open_docx,
    .rezultDocx,
    .pay_yoo {
        font-size: 1rem;
    }
}
@media (max-width: 589px) {
    .calc,
    .modal-close-btn1,
    .preview,
    .rezult,
    .open,
    .open_docx,
    .rezultDocx,
    .pay_yoo {
        font-size: 16px;
    }
    .modal-content1 {
        margin: 3% auto;
        width: 95%;
    }
    .legend {
        width: 90%;
        font-size: 12px;
    }
    .legend-1, 
    .legend-2,
    .legend-3,
    .legend-4  {
        border-radius: 2px;
        width: 70%;
    }
   
}
@media (max-width: 569px) {
    .contayner,
    .contayner1,
    .contayner2,
    .contayner3,
    .box2,
    .in_box {
        width: 100%;
        height: auto;
    }
    .box {
        width: 100%;
        overflow: auto;
    }
    .rezult,
    .open,
    .open_docx,
    .rezultDocx,
    .pay_yoo {
        font-size: 16px;
    }
    .add_S2 {
        font-size: 13px;
    }
    .img_formula_calcV_stellazhi {
        text-align: center;
        max-width: 90%;
    }
}
@media (max-width: 522px) {
    .calc,
    .modal-close-btn1,
    .preview,
    .rezult,
    .open,
    .open_docx,
    .rezultDocx,
    .pay_yoo {
        font-size: 13px;
    }
}
@media (max-width: 364px) {
    .legend-1, 
    .legend-2,
    .legend-3,
    .legend-4  {
        font-size: 10px;
    }
}
@media (max-width: 349px) {
    .calc,
    .modal-close-btn1,
    .preview,
    .rezult,
    .open,
    .open_docx,
    .rezultDocx,
    .pay_yoo {
        font-size: 9px;
    }
    .add_S2 {
        font-size: 12px;
    }
    .img_formula_calcV_stellazhi {
        text-align: center;
        max-width: 97%;
        height: 100%;
    }
}
@media (max-width: 340px) {
    .delete,
    .delete_false {
        padding-left: 4px;
        padding-right: 4px;
    }
}
.required-empty {
    border: 2px solid #ec0e0e9e;
}
.optional-empty {
    border: 2px solid #ec0e0e9e;
}
.filled {
    border: 2px solid #25a62a95;
}
input[name="In_massa"] {
    width: 100%;
    height: 28px;
    padding-top: 0;
    padding-bottom: 0;
    margin-bottom: 5px;
    background-color: #fff;
    border-radius: 4px;
    font-size: 14px;
    vertical-align: top;
    margin-right: 3px;
    margin-left: 3px;
    padding-left: 3px;
    padding-right: 0;
}
:root {
    --primary-color: #2c3e50;
    --secondary-color: #e74c3c;
    --accent-color: #3498db;
    --light-bg: #f8f9fa;
    --dark-text: #333;
    --light-text: #7f8c8d;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}
body {
    margin: 0;
    height: 100vh;
}
.main-conteyner {
    display: flex;
    max-width: 1600px;
    margin-left: auto;
    margin-right: auto;
}
.contayner-article {
    font-family: "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: #fff;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
article {
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 20px;
}
.article-mein {
    margin-bottom: 20px;
}
h1,
h2,
h3,
h4 {
    color: var(--primary-color);
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    font-weight: 600;
}
h1 {
    font-size: 2.2rem;
}
.h2 {
    font-size: 1.8rem;
    border-left: 4px solid var(--accent-color);
    padding-left: 15px;
}
h3 {
    font-size: 1.4rem;
}
h4 {
    font-size: 1.2rem;
}
p {
    font-size: 1.05rem;
}
.a-calc {
    color: #1288d6;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}
.a-calc:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}
ul,
ol {
    margin-bottom: 1.5em;
    padding-left: 1.5em;
}
li {
    font-size: 1.05rem;
}
.formula-container {
    background: var(--light-bg);
    padding: 15px;
    border-left: 3px solid var(--accent-color);
    margin: 20px 0;
    overflow-x: auto;
    font-size: 1.05rem;
}
.note {
    background-color: #e3f2fd;
    border-left: 4px solid var(--accent-color);
    padding: 15px;
    margin: 20px 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}
.warning {
    background-color: #fff3e0;
    border-left: 4px solid #ffa000;
    padding: 15px;
    margin: 20px 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}
.toc {
    position: relative;
    background: var(--light-bg);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
}
#spinner_modal {
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999099999;
}
.spinner_modal_content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #999;
    padding: 20px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    max-width: 300px;
    width: 80%;
    text-align: center;
}
#spinner_modal .p_spinner {
    margin-bottom: 20px;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
}
#spinner {
    display: inline-block;
    width: 60px;
    height: 60px;
}
.loader {
    border: 8px solid #f3f3f3;
    border-top: 8px solid #3498db;
    border-radius: 50%;
    width: 100%;
    height: 100%;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}
@media (max-width: 772px) {
    article {
        padding: 20px;
    }
    h1 {
        font-size: 1.8rem;
    }
    h2 {
        font-size: 1.5rem;
    }
}
.modal2 {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
}
.modal-content2 {
    background-color: #fff;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    max-width: 800px;
    width: 100%;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    position: relative;
}
.modal2 {
    margin-bottom: 1rem;
    color: var(--primary-blue);
}
.button-container {
    display: flex;
    gap: 1rem;
    justify-content: center;
}
.modal-button {
    background-color: var(--primary-blue);
    color: #fff;
    border: none;
    padding: 1rem 2rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
    flex: 1;
}
#uuu {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
@media (max-width: 474px) {
    .modal-button {
        font-size: 0.8rem;
        padding: 0.7rem 1rem;
    }
    article {
        padding: 10px;
    }
    .contayner-article {
        margin: 0 auto;
        padding: 0 5px;
    }
}
.modal-button:hover,
.cta-button:hover {
    background-color: #1a3a53;
}
.close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-gray);
}
.close:hover {
    color: var(--accent-red);
}
q {
    quotes: "" "";
}
.block-review {
    padding: 0;
    margin: 30px 0;
}
.toc-s {
    background: #b7e7fd6c;
    padding: 0 20px 20px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    margin-top: 0;
    margin-bottom: 8px;
    display: block;
    padding: 5px 0 5px 1px;
}
.toc-h3 {
    margin-top: 5px;
}
.ul-s {
    list-style-type: none;
    padding: 0 7px 0 12px;
}
.toc-b {
    background: #f3b3c481;
    padding: 10px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    margin-top: 0;
    margin-bottom: 8px;
    display: block;
    padding: 5px 0 25px 0;
    text-align: center;
}
.calc-b {
    width: 47%;
    height: 40px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 15px;
    color: #000;
    border: 2px solid #2b2b2b;
    background-color: #ff28287d;
    border-radius: 8px;
    font-weight: 500;
}
.calc-b:hover {
    background-color: #ff2828;
    color: #fff;
}
.st {
    position: sticky;
    top: 0;
    height: 1600px;
    overflow-y: auto;
    margin-left: 5px;
    margin-right: 10px;
    width: 30%;
}
@media (max-height: 1080px) {
    .st {
        height: 980px;
    }
}
@media (max-height: 864px) {
    .st {
        height: 800px;
    }
}
@media (max-height: 768px) {
    .st {
        height: 700px;
    }
}
@media (max-width: 1484px) {
    .calc-b {
        font-size: 12px;
    }
}
@media (max-width: 640px) {
    .toc {
        padding: 1px;
    }
}
.select2-container {
    box-sizing: border-box;
    display: inline-block;
    margin: 0;
    position: relative;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 15px;
}
.select2-container .select2-selection--single {
    box-sizing: border-box;
    cursor: pointer;
    display: block;
    height: 28px;
    user-select: none;
    -webkit-user-select: none;
}
.select2-container .select2-selection--single .select2-selection__rendered {
    display: block;
    padding-left: 8px;
    padding-right: 20px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.select2-hidden-accessible {
    border: 0 !important;
    clip: rect(0 0 0 0) !important;
    -webkit-clip-path: inset(50%) !important;
    clip-path: inset(50%) !important;
    height: 1px !important;
    overflow: hidden !important;
    padding: 0 !important;
    position: absolute !important;
    width: 1px !important;
    white-space: nowrap !important;
}
.select2-container--default .select2-selection--single {
    background-color: #fff;
    border: 1px solid #aaa;
    border-radius: 4px;
}
.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: #444;
    line-height: 28px;
}
.select2-container--default .select2-selection--single .select2-selection__placeholder {
    color: #999;
}
.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 26px;
    position: absolute;
    top: 1px;
    right: 1px;
    width: 20px;
}
.select2-container--default .select2-selection--single .select2-selection__arrow b {
    border-color: #888 transparent transparent transparent;
    border-style: solid;
    border-width: 5px 4px 0 4px;
    height: 0;
    left: 50%;
    margin-left: -4px;
    margin-top: -2px;
    position: absolute;
    top: 50%;
    width: 0;
}
.select2-container .select2-search--inline .select2-search__field {
    box-sizing: border-box;
    border: none;
    font-size: 100%;
    margin-top: 5px;
    margin-left: 5px;
    padding: 0;
    max-width: 100%;
    resize: none;
    height: 18px;
    vertical-align: bottom;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    overflow: hidden;
    word-break: keep-all;
}
.select2-container .select2-search--inline .select2-search__field::-webkit-search-cancel-button {
    -webkit-appearance: none;
}
.select2-dropdown {
    background-color: #fff;
    border: 1px solid #aaa;
    border-radius: 4px;
    box-sizing: border-box;
    display: block;
    position: absolute;
    left: -100000px;
    width: 100%;
    z-index: 1051;
}
.select2-results {
    display: block;
}
.select2-results__options {
    list-style: none;
    margin: 0;
    padding: 0;
}
.select2-results__option {
    padding: 6px;
    user-select: none;
    -webkit-user-select: none;
}
.select2-results__option--selectable {
    cursor: pointer;
}
.select2-container--open .select2-dropdown {
    left: 0;
}
.select2-container--open .select2-dropdown--above {
    border-bottom: none;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}
.select2-container--open .select2-dropdown--below {
    border-top: none;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}
.select2-search--dropdown {
    display: block;
    padding: 4px;
}
.select2-search--dropdown .select2-search__field {
    padding: 4px;
    width: 100%;
    box-sizing: border-box;
}
.select2-search--dropdown .select2-search__field::-webkit-search-cancel-button {
    -webkit-appearance: none;
}
.select2-search--dropdown.select2-search--hide {
    display: none;
}
.select2-close-mask {
    border: 0;
    margin: 0;
    padding: 0;
    display: block;
    position: fixed;
    left: 0;
    top: 0;
    min-height: 100%;
    min-width: 100%;
    height: auto;
    width: auto;
    opacity: 0;
    z-index: 99;
    background-color: #fff;
    filter: alpha(opacity=0);
}
.select2-container--default .select2-selection--single .select2-selection__clear {
    cursor: pointer;
    float: right;
    font-weight: 700;
    height: 26px;
    margin-right: 20px;
    padding-right: 0;
}
.select2-container--default.select2-container--disabled .select2-selection--single {
    background-color: #eee;
    cursor: default;
}
.select2-container--default.select2-container--disabled .select2-selection--single .select2-selection__clear {
    display: none;
}
.select2-container--default.select2-container--open .select2-selection--single .select2-selection__arrow b {
    border-color: transparent transparent #888 transparent;
    border-width: 0 4px 5px 4px;
}
.select2-container--default .select2-results > .select2-results__options {
    max-height: 300px;
    overflow-y: auto;
}
.select2-container--default .select2-results__option--highlighted.select2-results__option--selectable {
    background-color: #5897fb;
    color: #fff;
}
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    display: none;
}
.loading-content {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
    width: 80%;
    max-width: 400px;
}
.progress-container {
    width: 100%;
    height: 20px;
    background-color: #f1f1f1;
    border-radius: 10px;
    margin: 20px 0;
    overflow: hidden;
}
.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #4caf50, #2e8b57);
    border-radius: 10px;
    transition: width 0.3s ease;
    position: relative;
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0% {
        opacity: 0.9;
    }
    50% {
        opacity: 0.7;
    }
    100% {
        opacity: 0.9;
    }
}
.progress-text {
    font-size: 14px;
    color: #555;
    margin-top: 10px;
}