/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #3aad80;
    --color-primary-hover: #2aa071;
    --color-text: #101010;
    --color-text-light: #666;
    --color-bg: #ffffff;
    --color-bg-light: #f7f7f7;
    --color-border: #e0e0e0;
    --font-main: 'Arial', sans-serif;
    --font-heading: 'Arial', sans-serif;
    --container-width: 1200px;
    --spacing: 20px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s;
}

a:hover {
    opacity: 0.8;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing);
}

/* Header */
.header {
    background-color: var(--color-bg);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.header__logo-img {
    height: 50px;
    width: auto;
}

.header__nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
    flex-wrap: wrap;
}

.header__nav-link {
    font-size: 16px;
    color: var(--color-text);
    transition: color 0.3s;
}

.header__nav-link:hover {
    color: var(--color-primary);
}

.header__contacts {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header__phone {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
}

.header__social {
    display: flex;
    gap: 10px;
}

.header__social-link {
    display: flex;
    align-items: center;
    width: 32px;
    height: 32px;
}

.header__social-link img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Hero Section */
.hero {
    background-color: var(--color-bg-light);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero__title {
    font-size: 50px;
    font-weight: 500;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 30px;
    color: var(--color-text);
}

.hero__title strong {
    color: var(--color-primary);
}

.hero__subtitle {
    font-size: 20px;
    line-height: 1.32;
    margin-bottom: 40px;
    color: var(--color-text);
}

.hero__form {
    margin-bottom: 20px;
}

.hero__form-group {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.hero__form-input {
    flex: 1;
    min-width: 200px;
    padding: 20px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-size: 17px;
    background-color: var(--color-bg);
}

.hero__form-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.hero__form-button {
    padding: 20px 40px;
    background-color: var(--color-primary);
    color: #ffffff;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    white-space: nowrap;
    transition: background-color 0.3s;
}

.hero__form-button:hover {
    background-color: var(--color-primary-hover);
}

.hero__form-checkbox {
    margin-top: 10px;
}

.hero__form-checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 10px;
    font-weight: 300;
    color: var(--color-text);
    cursor: pointer;
}

.hero__form-checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.hero__image {
    position: relative;
}

.hero__img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    object-fit: cover;
}

/* Section Styles */
.section {
    padding: 80px 0;
}

.section__title {
    font-size: 40px;
    font-weight: 500;
    text-align: center;
    margin-bottom: 50px;
    color: var(--color-text);
}

.section__subtitle {
    font-size: 20px;
    text-align: center;
    margin-bottom: 40px;
    color: var(--color-text-light);
}

/* Types Section */
.types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.types-card {
    background-color: var(--color-bg);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.types-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.types-card__img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    margin-bottom: 20px;
}

.types-card__title {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 15px;
    color: var(--color-text);
}

.types-card__text {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Quiz Section */
.quiz {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--color-bg-light);
    border-radius: 15px;
    padding: 40px;
}

.quiz__step-title {
    font-size: 28px;
    font-weight: 500;
    margin-bottom: 30px;
    text-align: center;
}

.quiz__options {
    display: grid;
    gap: 15px;
    margin-bottom: 30px;
}

.quiz__option {
    padding: 20px;
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
    text-align: left;
}

.quiz__option:hover {
    border-color: var(--color-primary);
}

.quiz__option.active {
    border-color: var(--color-primary);
    background-color: rgba(58, 173, 128, 0.1);
}

.quiz__next {
    width: 100%;
    padding: 20px;
    background-color: var(--color-primary);
    color: #ffffff;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    transition: background-color 0.3s;
}

.quiz__next:hover {
    background-color: var(--color-primary-hover);
}

.quiz__result {
    text-align: center;
}

.quiz__result-title {
    font-size: 28px;
    font-weight: 500;
    margin-bottom: 30px;
}

.quiz__result-price {
    font-size: 36px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.quiz__result-label {
    display: block;
    font-size: 18px;
    color: var(--color-text-light);
    margin-bottom: 10px;
}

.quiz__result-value {
    display: block;
    font-size: 48px;
}

.quiz__result-text {
    font-size: 18px;
    margin-bottom: 30px;
    color: var(--color-text-light);
}

.quiz__result-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.quiz__result-form input {
    padding: 15px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-size: 16px;
}

.quiz__result-button {
    padding: 15px;
    background-color: var(--color-primary);
    color: #ffffff;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    transition: background-color 0.3s;
}

.quiz__result-button:hover {
    background-color: var(--color-primary-hover);
}

/* Stages Section */
.stages {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.stages__item {
    text-align: center;
}

.stages__number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 600;
    margin: 0 auto 20px;
}

.stages__title {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 15px;
    color: var(--color-text);
}

.stages__text {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Examples Section */
.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

/* Doctors Section */
.doctors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.doctors-card {
    background-color: var(--color-bg-light);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
}

.doctors-card__img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 20px;
}

.doctors-card__name {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--color-text);
}

.doctors-card__position {
    font-size: 18px;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.doctors-card__exp {
    font-size: 16px;
    color: var(--color-text-light);
}

/* FAQ Section */
.faq {
    max-width: 900px;
    margin: 0 auto;
}

.faq__item {
    background-color: var(--color-bg-light);
    border-radius: 10px;
    margin-bottom: 10px;
    overflow: hidden;
}

.faq__question {
    width: 100%;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    font-size: 20px;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: background-color 0.3s;
}

.faq__question:hover {
    background-color: rgba(58, 173, 128, 0.1);
}

.faq__question-icon {
    font-size: 24px;
    font-weight: 300;
    color: var(--color-primary);
    transition: transform 0.3s;
}

.faq__question[aria-expanded="true"] .faq__question-icon {
    transform: rotate(45deg);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 20px;
}

.faq__question[aria-expanded="true"] + .faq__answer {
    max-height: 1000px;
    padding: 0 20px 20px;
}

.faq__answer p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-light);
}

/* CTA Section */
.section--cta {
    background-color: var(--color-bg-light);
}

.cta-form {
    max-width: 600px;
    margin: 0 auto;
}

.cta-form__group {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.cta-form__input {
    flex: 1;
    min-width: 200px;
    padding: 15px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-size: 16px;
    background-color: var(--color-bg);
}

.cta-form__input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.cta-form__button {
    padding: 15px 40px;
    background-color: var(--color-primary);
    color: #ffffff;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    white-space: nowrap;
    transition: background-color 0.3s;
}

.cta-form__button:hover {
    background-color: var(--color-primary-hover);
}

.cta-form__checkbox {
    text-align: center;
}

.cta-form__checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--color-text-light);
    cursor: pointer;
}

.cta-form__checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Footer */
.footer {
    background-color: var(--color-text);
    color: #ffffff;
    padding: 60px 0 30px;
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer__title {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 20px;
}

.footer__text {
    font-size: 16px;
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.8);
}

.footer__link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: underline;
}

.footer__nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer__nav-link {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s;
}

.footer__nav-link:hover {
    color: var(--color-primary);
}

.footer__social {
    display: flex;
    gap: 15px;
}

.footer__social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer__social-link img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    flex-wrap: wrap;
    gap: 20px;
}

.footer__copyright {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* Popup */
.popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.popup__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    cursor: pointer;
}

.popup__content {
    position: relative;
    background-color: var(--color-bg);
    border-radius: 15px;
    padding: 40px;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    z-index: 1;
    margin: 20px;
}

.popup__close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 30px;
    height: 30px;
    font-size: 30px;
    line-height: 1;
    color: var(--color-text);
    cursor: pointer;
    transition: color 0.3s;
}

.popup__close:hover {
    color: var(--color-primary);
}

.popup__title {
    font-size: 28px;
    font-weight: 500;
    margin-bottom: 20px;
    color: var(--color-text);
}

.popup__text {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-light);
}

/* Responsive */
@media (max-width: 960px) {
    .hero__content {
        grid-template-columns: 1fr;
    }

    .hero__title {
        font-size: 36px;
    }

    .hero__form-group {
        flex-direction: column;
    }

    .hero__form-button {
        width: 100%;
    }

    .header__content {
        flex-wrap: wrap;
    }

    .header__nav-list {
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .section__title {
        font-size: 32px;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 40px 0;
    }

    .hero__title {
        font-size: 24px;
    }

    .hero__subtitle {
        font-size: 16px;
    }

    .section {
        padding: 40px 0;
    }

    .section__title {
        font-size: 24px;
    }

    .types-grid,
    .stages,
    .doctors-grid {
        grid-template-columns: 1fr;
    }

    .cta-form__group {
        flex-direction: column;
    }

    .cta-form__button {
        width: 100%;
    }

    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }
}