* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4a90e2;
    --primary-dark: #357abd;
    --primary-light: #6ba3e8;
    --secondary-color: #5cb85c;
    --accent-color: #f0ad4e;
    --text-color: #2c3e50;
    --text-secondary: #6c757d;
    --text-light: #adb5bd;
    --border-color: #dee2e6;
    --bg-color: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #212529;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --radius: 8px;
    --radius-large: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section__header {
    text-align: center;
    margin-bottom: 60px;
}

.section__title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-color);
}

.section__subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    outline: none;
    letter-spacing: 0.01em;
}

.btn--primary {
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 2px 8px rgba(74, 144, 226, 0.2);
}

.btn--primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.btn--secondary {
    background: #fff;
    color: var(--text-color);
    border: 2px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
}

.btn--secondary:hover {
    background: var(--bg-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08);
}

.btn--large {
    padding: 16px 44px;
    font-size: 1.0625rem;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.header--scrolled {
    background-color: rgba(255, 255, 255, 0.99);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav__logo .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.nav__logo .logo i {
    font-size: 2rem;
    color: var(--primary-color);
}

.nav__menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav__menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

.nav__menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav__menu a:hover::after {
    width: 100%;
}

.nav__actions {
    display: flex;
    gap: 16px;
}

.nav__toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
}

.banner {
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    color: var(--text-color);
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.banner::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(92, 184, 92, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.banner__title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
    color: var(--text-color);
    position: relative;
}

.banner__subtitle {
    font-size: 1.25rem;
    margin-bottom: 40px;
    color: var(--text-secondary);
    font-weight: 400;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.banner__actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    position: relative;
}

.products__filter {
    margin-bottom: 40px;
}

.filter__search {
    position: relative;
    max-width: 400px;
    margin: 0 auto 30px;
}

.filter__search input {
    width: 100%;
    padding: 12px 40px 12px 16px;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    outline: none;
    transition: var(--transition);
}

.filter__search input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
}

.filter__search i {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.filter__categories {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.filter__btn {
    padding: 10px 24px;
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    color: var(--text-color);
}

.filter__btn:hover {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.filter__btn--active {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.products__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 32px;
}

.product-card {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    padding: 28px;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.product-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
    border-color: var(--primary-color);
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-card__header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.product-card__logo {
    width: 64px;
    height: 64px;
    background: var(--bg-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.75rem;
    border: 2px solid var(--border-color);
}

.product-card__title {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 4px;
}

.product-card__subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.product-card__description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
    font-size: 0.9375rem;
}

.product-card__features {
    list-style: none;
    margin-bottom: 20px;
}

.product-card__features li {
    padding: 5px 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.product-card__features li::before {
    content: "✓";
    color: var(--secondary-color);
    font-weight: 600;
    flex-shrink: 0;
}

.product-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    margin-top: 24px;
}

.product-card__price {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--primary-color);
}

.product-card__btn {
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    font-size: 0.9375rem;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.25);
}

.product-card__btn:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 102, 204, 0.35);
}

.specs__compare {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
}

.specs__selection {
    background-color: var(--bg-light);
    padding: 24px;
    border-radius: var(--radius-large);
}

.specs__selection h3 {
    margin-bottom: 20px;
    font-size: 1.25rem;
}

.specs__checkboxes {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.specs__checkboxes label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

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

.specs__table {
    overflow-x: auto;
}

.specs__table table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--bg-color);
}

.specs__table th,
.specs__table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.specs__table th {
    background-color: var(--bg-light);
    font-weight: 600;
}

.specs__table tr:hover {
    background-color: var(--bg-light);
}

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

.form__group {
    margin-bottom: 20px;
}

.form__group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form__group input,
.form__group select,
.form__group textarea {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    outline: none;
    transition: var(--transition);
}

.form__group select[multiple] {
    min-height: 200px;
    padding: 8px;
}

.form__group select[multiple] option {
    padding: 10px 12px;
    margin: 2px 0;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.form__group select[multiple] option:hover {
    background-color: var(--bg-light);
}

.form__group select[multiple] option:checked {
    background-color: var(--primary-color);
    color: #fff;
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
}

.form__group--checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form__group--checkbox input {
    width: auto;
}

.form__group--checkbox label {
    margin-bottom: 0;
    font-weight: normal;
}

.tutorials__categories {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 40px;
}

.tutorial__btn {
    padding: 8px 20px;
    background-color: var(--bg-light);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
}

.tutorial__btn:hover {
    background-color: var(--primary-color);
    color: #fff;
}

.tutorial__btn--active {
    background-color: var(--primary-color);
    color: #fff;
}

.tutorials__list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.tutorial-card {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    overflow: hidden;
    transition: var(--transition);
}

.tutorial-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-8px);
    border-color: var(--primary-light);
}

.tutorial-card__image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #fff;
}

.tutorial-card__content {
    padding: 24px;
}

.tutorial-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-color);
}

.tutorial-card__description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
    font-size: 0.9375rem;
}

.tutorial-card__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.tutorial-card__category {
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    color: #fff;
    border-radius: 20px;
    font-weight: 500;
}

.faq__search {
    position: relative;
    max-width: 600px;
    margin: 0 auto 30px;
}

.faq__search input {
    width: 100%;
    padding: 12px 40px 12px 16px;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    outline: none;
    transition: var(--transition);
}

.faq__search input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
}

.faq__search i {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.faq__categories {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 40px;
}

.faq__btn {
    padding: 10px 24px;
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    color: var(--text-color);
}

.faq__btn:hover {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.faq__btn--active {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.faq__list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
}

.faq-item__question {
    padding: 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    transition: var(--transition);
    font-size: 1rem;
}

.faq-item__question:hover {
    background-color: var(--bg-light);
}

.faq-item__question i {
    transition: var(--transition);
    color: var(--text-secondary);
}

.faq-item--active .faq-item__question i {
    transform: rotate(180deg);
    color: var(--primary-color);
}

.faq-item__answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item--active .faq-item__answer {
    padding: 24px;
    max-height: 500px;
}

.faq-item__actions {
    display: flex;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.faq-item__vote {
    display: flex;
    gap: 12px;
}

.faq-item__vote button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.faq-item__vote button:hover {
    color: var(--primary-color);
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact__item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-large);
    transition: var(--transition);
}

.contact__item:hover {
    background: #fff;
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}

.contact__item i {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-top: 4px;
}

.contact__item h4 {
    font-size: 1.125rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.contact__item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact__map {
    height: 450px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    border-radius: var(--radius-large);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: var(--shadow);
}

.footer {
    background-color: var(--bg-dark);
    color: #fff;
    padding: 80px 0 30px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 48px;
    margin-bottom: 60px;
}

.footer__section h3 {
    font-size: 1.25rem;
    margin-bottom: 24px;
    font-weight: 600;
    color: #fff;
}

.footer__section p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 16px;
    line-height: 1.7;
}

.footer__social {
    display: flex;
    gap: 16px;
    margin-top: 24px;
}

.footer__social a {
    width: 44px;
    height: 44px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: var(--transition);
    font-size: 1.125rem;
}

.footer__social a:hover {
    background-color: var(--primary-color);
    transform: translateY(-4px);
}

.footer__section ul {
    list-style: none;
}

.footer__section li {
    margin-bottom: 12px;
}

.footer__section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer__section a:hover {
    color: #fff;
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

.footer__section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer__section a:hover {
    color: #fff;
}

.footer__bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

.chat-widget {
    position: fixed;
    bottom: 40px;
    right: 40px;
    z-index: 999;
}

.chat__toggle {
    width: 56px;
    height: 56px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.5rem;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.25);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat__toggle:hover {
    transform: scale(1.05) translateY(-2px);
    box-shadow: 0 6px 16px rgba(74, 144, 226, 0.35);
}

.chat__window {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 380px;
    height: 520px;
    background-color: var(--bg-color);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    overflow: hidden;
}

.chat__window--active {
    display: flex;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    background: var(--primary-color);
    color: #fff;
}

.chat__header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.chat__header button {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 1.125rem;
    transition: var(--transition);
}

.chat__header button:hover {
    transform: rotate(90deg);
}

.chat__messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
    background-color: var(--bg-light);
}

.chat__message {
    max-width: 82%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.9375rem;
    line-height: 1.5;
    animation: fadeIn 0.3s ease;
}

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

.chat__message--bot {
    align-self: flex-start;
    background-color: #fff;
    color: var(--text-color);
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.chat__message--user {
    align-self: flex-end;
    background: var(--primary-color);
    color: #fff;
    border-bottom-right-radius: 4px;
    box-shadow: 0 2px 8px rgba(74, 144, 226, 0.15);
}
.chat__quick-replies {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    background-color: #fff;
}

.chat__quick-reply {
    padding: 8px 16px;
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
    color: var(--text-color);
    font-weight: 500;
}

.chat__quick-reply:hover {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.chat__input {
    display: flex;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    gap: 12px;
    background-color: #fff;
}

.chat__input input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    outline: none;
    transition: var(--transition);
    font-size: 0.9375rem;
}

.chat__input input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.chat__input button {
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: 24px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.chat__input button:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.25);
}

.chat__input input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    outline: none;
    margin-right: 12px;
}

.chat__input input:focus {
    border-color: var(--primary-color);
}

.chat__input button {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

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

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal--active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal__content {
    background-color: var(--bg-color);
    border-radius: var(--radius-large);
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

.modal__content--large {
    max-width: 700px;
}

.modal__close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.05);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal__close:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--text-color);
    transform: rotate(90deg);
}

.modal__body {
    padding: 40px;
}

.modal__body h2 {
    font-size: 1.75rem;
    margin-bottom: 24px;
    font-weight: 700;
}

.product-detail__header {
    display: flex;
    gap: 32px;
    margin-bottom: 40px;
    align-items: flex-start;
}

.product-detail__logo {
    width: 100px;
    height: 100px;
    background: var(--bg-light);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    border: 2px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    flex-shrink: 0;
}

.product-detail__info h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.product-detail__category {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.product-detail__description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.product-detail__section {
    margin-bottom: 32px;
}

.product-detail__section h4 {
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.product-detail__features,
.product-detail__advantages {
    list-style: none;
}

.product-detail__features li,
.product-detail__advantages li {
    padding: 8px 0;
    color: var(--text-secondary);
}

.product-detail__features li:before {
    content: "✓";
    color: var(--secondary-color);
    margin-right: 12px;
    font-weight: bold;
}

.product-detail__advantages li:before {
    content: "★";
    color: #faad14;
    margin-right: 12px;
}

.product-detail__specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.product-detail__spec {
    padding: 12px;
    background-color: var(--bg-light);
    border-radius: var(--radius);
}

.product-detail__spec-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 4px;
}

.product-detail__spec-value {
    font-weight: 600;
}

.product-detail__pricing {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.product-detail__plan {
    padding: 20px;
    background-color: var(--bg-light);
    border-radius: var(--radius);
    text-align: center;
}

.product-detail__plan-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.product-detail__plan-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.product-detail__plan-features {
    list-style: none;
    text-align: left;
}

.product-detail__plan-features li {
    padding: 4px 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.product-detail__actions {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}

.product-detail__actions .btn {
    flex: 1;
}

.toast {
    position: fixed;
    top: 100px;
    right: 30px;
    padding: 16px 24px;
    background-color: var(--bg-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
    display: none;
    align-items: center;
    gap: 12px;
    z-index: 3000;
}

.toast--success {
    border-left: 4px solid var(--secondary-color);
}

.toast--error {
    border-left: 4px solid #ff4d4f;
}

.toast--active {
    display: flex;
}

.toast__icon {
    font-size: 1.25rem;
}

.toast--success .toast__icon {
    color: var(--secondary-color);
}

.toast--error .toast__icon {
    color: #ff4d4f;
}

.toast__message {
    color: var(--text-color);
}