/* Сброс стилей и базовые настройки */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-dark-blue: #1a2a4a;
    --color-graphite: #2c3e50;
    --color-white: #ffffff;
    --color-accent: #ff6b35;
    --color-accent-hover: #e55a2b;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg-light: #f5f5f5;
    --color-border: #e0e0e0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
}

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

/* Hero-секция */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-image: url('images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26, 42, 74, 0.85) 0%, rgba(44, 62, 80, 0.75) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    color: var(--color-white);
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.95);
}

.hero-text {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    max-width: 700px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Кнопки */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    border-radius: 5px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-dark-blue);
}

/* Секции */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--color-dark-blue);
}

/* О компании */
.about {
    background-color: var(--color-white);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-content p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-light);
}

.about-content p:last-child {
    margin-bottom: 0;
}

/* Услуги */
.services {
    background-color: var(--color-bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--color-white);
    padding: 2.5rem 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.service-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-dark-blue);
}

.service-description {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Как мы работаем */
.how-we-work {
    background-color: var(--color-white);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
    margin-top: 2rem;
}

.step {
    position: relative;
    text-align: center;
    padding: 2rem 1.5rem;
}

.step-number {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background-color: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.step-icon {
    font-size: 3rem;
    margin: 1.5rem 0 1rem;
}

.step-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-dark-blue);
}

.step-description {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Чат-бот / Заявка */
.request {
    background-color: var(--color-bg-light);
}

.request-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.request-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1100px;
    margin: 0 auto;
}

.chat-preview {
    background-color: var(--color-white);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    height: fit-content;
}

.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.message {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 80%;
}

.message-client {
    align-self: flex-end;
}

.message-company {
    align-self: flex-start;
}

.message-text {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.message-client .message-text {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-bottom-right-radius: 4px;
}

.message-company .message-text {
    background-color: var(--color-bg-light);
    color: var(--color-text);
    border-bottom-left-radius: 4px;
}

.message-time {
    font-size: 0.75rem;
    color: var(--color-text-light);
    padding: 0 4px;
}

.message-client .message-time {
    text-align: right;
}

.request-form-wrapper {
    background-color: var(--color-white);
    border-radius: 10px;
    padding: 2.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.request-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--color-dark-blue);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.checkbox-group {
    flex-direction: row;
    align-items: flex-start;
    gap: 0.75rem;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
}

.checkbox-group label {
    font-weight: 400;
    cursor: pointer;
}

.btn-submit {
    width: 100%;
    padding: 16px;
    font-size: 1.1rem;
    margin-top: 0.5rem;
}

/* География и преимущества */
.geography {
    background-color: var(--color-white);
}

.geography-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.map-container {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.yandex-map {
    width: 100%;
    height: 400px;
    background-color: var(--color-bg-light);
}

.advantages {
    padding: 2rem 0;
}

.advantages-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--color-dark-blue);
}

.advantages-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-text-light);
}

.advantage-icon {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    background-color: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

/* Контакты */
.contacts {
    background-color: var(--color-bg-light);
}

.contacts-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.contact-info {
    flex: 1;
}

.contact-label {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-dark-blue);
}

.contact-value {
    color: var(--color-text);
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.contact-value:hover {
    color: var(--color-accent);
}

.contact-item.contact-map-link {
    grid-column: 1 / -1;
    justify-content: center;
    margin-top: 1rem;
}

/* Футер */
.footer {
    background-color: var(--color-dark-blue);
    color: var(--color-white);
    padding: 2rem 0;
    text-align: center;
}

.footer-text {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
}

/* Адаптивность для планшетов */
@media (max-width: 968px) {
    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.3rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .request-wrapper {
        grid-template-columns: 1fr;
    }

    .geography-wrapper {
        grid-template-columns: 1fr;
    }

    .yandex-map {
        height: 300px;
    }
}

/* Адаптивность для мобильных */
@media (max-width: 640px) {
    .hero {
        min-height: 80vh;
        background-attachment: scroll;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-text {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .request-form-wrapper {
        padding: 1.5rem;
    }

    .contacts-content {
        grid-template-columns: 1fr;
    }

    .about-content p {
        font-size: 1rem;
    }
}