/* ============================================
COMPONENT: Main Stylesheet
Описание: Стили для лендинга медицинских салфеток с уникальным асимметричным дизайном
Версия: 1.0
============================================ */

/* === CSS ПЕРЕМЕННЫЕ === */
:root {
    --color-primary: #00a896;
    --color-primary-dark: #007a6e;
    --color-primary-light: #00d4b8;
    --color-secondary: #028090;
    --color-accent: #05668d;
    --color-text: #2c3e50;
    --color-text-light: #7f8c8d;
    --color-bg: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-bg-dark: #1a1a2e;
    --color-border: #e0e0e0;
    --spacing-unit: 8px;
    --font-size-base: 16px;
    --transition-base: 0.3s ease;
    --border-radius: 12px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
}

/* === БАЗОВЫЕ СТИЛИ === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-base);
}

/* === ШАПКА САЙТА === */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 249, 250, 0.98) 100%);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: calc(var(--spacing-unit) * 2) 0;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    flex-direction: column;
}

.logo {
    font-size: calc(var(--font-size-base) * 1.75);
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

.logo-accent {
    color: var(--color-primary);
}

.tagline {
    font-size: calc(var(--font-size-base) * 0.75);
    color: var(--color-text-light);
    margin-top: calc(var(--spacing-unit) * 0.5);
}

.main-navigation {
    display: flex;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: calc(var(--spacing-unit) * 4);
    align-items: center;
}

.nav-list a {
    color: var(--color-text);
    font-weight: 500;
    position: relative;
    padding: calc(var(--spacing-unit) * 0.5) 0;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

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

.nav-list a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: calc(var(--spacing-unit) * 1);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition-base);
}

/* === HERO СЕКЦИЯ === */
.hero-section {
    position: relative;
    margin-top: 80px;
    padding: calc(var(--spacing-unit) * 12) 0 calc(var(--spacing-unit) * 8);
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #bae6fd 100%);
    overflow: hidden;
}

.hero-shape {
    position: absolute;
    bottom: -100px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    border-radius: 50%;
    opacity: 0.1;
    transform: rotate(45deg);
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 6);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 3);
}

.hero-badge {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 2.5);
    background: var(--color-primary);
    color: white;
    border-radius: 20px;
    font-size: calc(var(--font-size-base) * 0.875);
    font-weight: 600;
    width: fit-content;
}

.hero-title {
    font-size: calc(var(--font-size-base) * 3);
    font-weight: 800;
    line-height: 1.2;
    color: var(--color-text);
}

.hero-description {
    font-size: calc(var(--font-size-base) * 1.125);
    color: var(--color-text-light);
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: calc(var(--spacing-unit) * 4);
    margin: calc(var(--spacing-unit) * 2) 0;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: calc(var(--font-size-base) * 2);
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: calc(var(--font-size-base) * 0.875);
    color: var(--color-text-light);
}

.cta-button {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 2.5) calc(var(--spacing-unit) * 5);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: calc(var(--font-size-base) * 1.125);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    width: fit-content;
    text-align: center;
}

.cta-button:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hero-image-wrapper {
    position: relative;
}

.hero-image-container {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transform: rotate(-2deg);
    transition: transform var(--transition-base);
}

.hero-image-container:hover {
    transform: rotate(0deg) scale(1.02);
}

.hero-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 168, 150, 0.1) 0%, rgba(2, 128, 144, 0.2) 100%);
}

/* === TRUST СЕКЦИЯ === */
.trust-section {
    background: var(--color-bg);
    padding: calc(var(--spacing-unit) * 6) 0;
    border-bottom: 1px solid var(--color-border);
}

.trust-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: calc(var(--spacing-unit) * 4);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 2);
}

.trust-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: calc(var(--font-size-base) * 1.25);
    flex-shrink: 0;
}

.trust-text {
    font-weight: 500;
    color: var(--color-text);
    font-size: calc(var(--font-size-base) * 0.9375);
}

/* === BENEFITS СЕКЦИЯ === */
.benefits-section {
    padding: calc(var(--spacing-unit) * 12) 0;
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-light) 100%);
    position: relative;
}

.benefits-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(135deg, transparent 0%, var(--color-primary-light) 50%, transparent 100%);
    opacity: 0.05;
    transform: skewY(-2deg);
    transform-origin: top left;
}

.benefits-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 8);
}

.section-label {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 0.75) calc(var(--spacing-unit) * 2.5);
    background: rgba(0, 168, 150, 0.1);
    color: var(--color-primary);
    border-radius: 20px;
    font-size: calc(var(--font-size-base) * 0.875);
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.section-title {
    font-size: calc(var(--font-size-base) * 2.5);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 4);
}

.benefit-card {
    background: var(--color-bg);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.benefit-icon-wrapper {
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.benefit-icon {
    font-size: calc(var(--font-size-base) * 2.5);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    border-radius: 12px;
}

.benefit-title {
    font-size: calc(var(--font-size-base) * 1.25);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

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

/* === PRODUCTS СЕКЦИЯ === */
.products-section {
    padding: calc(var(--spacing-unit) * 12) 0;
    background: var(--color-bg);
}

.products-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
}

.products-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
    align-items: center;
}

.products-text {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 3);
}

.section-description {
    font-size: calc(var(--font-size-base) * 1.125);
    color: var(--color-text-light);
    line-height: 1.7;
}

.features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 2);
    margin-top: calc(var(--spacing-unit) * 2);
}

.features-list li {
    padding-left: calc(var(--spacing-unit) * 3);
    position: relative;
    color: var(--color-text-light);
}

.features-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.products-image-wrapper {
    position: relative;
}

.products-image-container {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transform: rotate(2deg);
    transition: transform var(--transition-base);
}

.products-image-container:hover {
    transform: rotate(0deg) scale(1.02);
}

.products-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.products-badge {
    position: absolute;
    top: calc(var(--spacing-unit) * 3);
    right: calc(var(--spacing-unit) * 3);
    background: var(--color-primary);
    color: white;
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 3);
    border-radius: 20px;
    font-weight: 600;
    font-size: calc(var(--font-size-base) * 0.875);
    box-shadow: var(--shadow-md);
}

/* === QUALITY СЕКЦИЯ === */
.quality-section {
    padding: calc(var(--spacing-unit) * 12) 0;
    background: linear-gradient(135deg, var(--color-bg-light) 0%, #e8f5e9 100%);
    position: relative;
}

.quality-section::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(135deg, transparent 0%, var(--color-primary-light) 50%, transparent 100%);
    opacity: 0.05;
    transform: skewY(2deg);
}

.quality-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
    align-items: center;
    position: relative;
    z-index: 1;
}

.quality-image-wrapper {
    position: relative;
}

.quality-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.quality-content {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 3);
}

.quality-description {
    font-size: calc(var(--font-size-base) * 1.125);
    color: var(--color-text-light);
    line-height: 1.7;
}

.quality-features {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 3);
    margin-top: calc(var(--spacing-unit) * 2);
}

.quality-feature {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
    align-items: flex-start;
}

.quality-check {
    width: 30px;
    height: 30px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.quality-text h4 {
    font-size: calc(var(--font-size-base) * 1.125);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.quality-text p {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* === TESTIMONIALS СЕКЦИЯ === */
.testimonials-section {
    padding: calc(var(--spacing-unit) * 12) 0;
    background: var(--color-bg);
}

.testimonials-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 4);
    margin-top: calc(var(--spacing-unit) * 6);
}

.testimonial-card {
    background: var(--color-bg-light);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 2);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.testimonial-rating {
    color: #ffc107;
    font-size: calc(var(--font-size-base) * 1.25);
}

.testimonial-text {
    color: var(--color-text-light);
    line-height: 1.7;
    font-style: italic;
}

.testimonial-author {
    margin-top: auto;
    padding-top: calc(var(--spacing-unit) * 2);
    border-top: 1px solid var(--color-border);
}

.testimonial-author strong {
    display: block;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.testimonial-author span {
    color: var(--color-text-light);
    font-size: calc(var(--font-size-base) * 0.875);
}

/* === ORDER СЕКЦИЯ === */
.order-section {
    padding: calc(var(--spacing-unit) * 12) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.order-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.order-section::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -150px;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.order-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
    position: relative;
    z-index: 1;
}

.order-header {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.order-header .section-label {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.order-header .section-title {
    color: white;
}

.order-description {
    color: rgba(255, 255, 255, 0.9);
    font-size: calc(var(--font-size-base) * 1.125);
    margin-top: calc(var(--spacing-unit) * 2);
}

.order-form {
    background: white;
    padding: calc(var(--spacing-unit) * 5);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 3);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 1);
}

.form-label {
    font-weight: 600;
    color: var(--color-text);
    font-size: calc(var(--font-size-base) * 0.9375);
}

.form-input {
    padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 2.5);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: border-color var(--transition-base);
    color: var(--color-text);
}

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

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

.form-submit {
    width: 100%;
    margin-top: calc(var(--spacing-unit) * 2);
    padding: calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 5);
    font-size: calc(var(--font-size-base) * 1.125);
}

/* === ПОДВАЛ САЙТА === */
.site-footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: calc(var(--spacing-unit) * 8) 0 calc(var(--spacing-unit) * 4);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: calc(var(--spacing-unit) * 6);
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 2);
}

.footer-title {
    font-size: calc(var(--font-size-base) * 1.5);
    font-weight: 700;
    color: white;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    font-size: calc(var(--font-size-base) * 0.9375);
}

.footer-heading {
    font-size: calc(var(--font-size-base) * 1.125);
    font-weight: 600;
    color: white;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 1.5);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-primary-light);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 2);
}

.contact-item {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    font-size: calc(var(--font-size-base) * 0.9375);
}

.contact-item strong {
    color: white;
    display: block;
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.contact-item a {
    color: var(--color-primary-light);
}

.contact-item a:hover {
    text-decoration: underline;
}

.footer-hours {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    font-size: calc(var(--font-size-base) * 0.9375);
}

.footer-bottom {
    padding-top: calc(var(--spacing-unit) * 4);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: calc(var(--font-size-base) * 0.875);
}

/* === АДАПТИВНОСТЬ === */
@media (max-width: 1024px) {
    .hero-content,
    .products-content,
    .quality-container {
        grid-template-columns: 1fr;
    }

    .hero-image-container,
    .products-image-container {
        transform: none;
        margin-top: calc(var(--spacing-unit) * 4);
    }

    .benefits-grid,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .trust-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .main-navigation {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: calc(var(--font-size-base) * 2);
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: calc(var(--spacing-unit) * 2);
    }

    .section-title {
        font-size: calc(var(--font-size-base) * 2);
    }

    .benefits-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .trust-container {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 3);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

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

    .hero-section {
        padding: calc(var(--spacing-unit) * 8) 0 calc(var(--spacing-unit) * 6);
    }

    .hero-image {
        height: 300px;
    }

    .products-image {
        height: 300px;
    }

    .quality-image {
        height: 300px;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-base: 14px;
    }

    .header-container {
        padding: 0 calc(var(--spacing-unit) * 2);
    }

    .hero-content,
    .benefits-container,
    .products-container,
    .quality-container,
    .testimonials-container,
    .order-container,
    .footer-container {
        padding: 0 calc(var(--spacing-unit) * 2);
    }

    .order-form {
        padding: calc(var(--spacing-unit) * 3);
    }
}