/* ========================================
   CSS Variables & Reset
   ======================================== */
:root {
    /* Colors */
    --bg-primary: #F7FAFC;
    --bg-white: #FFFFFF;
    --bg-secondary: #EEF3F7;
    --text-primary: #1E293B;
    --text-secondary: #5B6B7A;
    --accent-blue: #2563EB;
    --accent-light-blue: #60A5FA;
    --accent-teal: #2DD4BF;
    --accent-purple: #6366F1;
    --border-color: #DCE6EE;
    
    /* Typography */
    --font-heading: 'Manrope', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img, svg {
    display: block;
    max-width: 100%;
}

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

ul {
    list-style: none;
}

/* ========================================
   Utility Classes
   ======================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section {
    padding: var(--spacing-4xl) 0;
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(45, 212, 191, 0.1));
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header .section-badge {
    margin-bottom: var(--spacing-lg);
}

.section-header .section-title {
    margin-bottom: var(--spacing-lg);
}

.section-header .section-description {
    margin: 0 auto;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    white-space: nowrap;
}

.btn--primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: var(--bg-white);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.btn--outline {
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid var(--border-color);
}

.btn--outline:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: rgba(37, 99, 235, 0.05);
}

.btn--small {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
}

/* ========================================
   Header
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(220, 230, 238, 0.5);
    transition: all var(--transition-normal);
}

.header--scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo__icon {
    width: 36px;
    height: 36px;
}

.logo__text {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav__list {
    display: flex;
    gap: var(--spacing-xl);
}

.nav__link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-teal));
    border-radius: 1px;
    transition: width var(--transition-normal);
}

.nav__link:hover,
.nav__link--active {
    color: var(--text-primary);
}

.nav__link:hover::after,
.nav__link--active::after {
    width: 100%;
}

.header__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.header__phone,
.header__email {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.header__phone:hover,
.header__email:hover {
    color: var(--accent-blue);
}

.header__burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.header__burger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.header__burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header__burger.active span:nth-child(2) {
    opacity: 0;
}

.header__burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero__inner {
    position: relative;
    z-index: 1;
    padding: var(--spacing-3xl) 0;
}

.hero__content {
    max-width: 720px;
    margin-bottom: var(--spacing-3xl);
}

.hero__title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-xl);
}

.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero__cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.hero-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(220, 230, 238, 0.5);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-normal);
}

.hero-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-light-blue);
}

.hero-card__icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-md);
    color: var(--accent-blue);
}

.hero-card__icon svg {
    width: 100%;
    height: 100%;
}

.hero-card__title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.hero-card__text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.hero__scroll {
    position: absolute;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    animation: scrollBounce 2s infinite;
}

.hero__scroll-icon {
    width: 24px;
    height: 36px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    position: relative;
}

.hero__scroll-icon::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--accent-blue);
    border-radius: 2px;
    animation: scrollDot 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

@keyframes scrollDot {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

/* ========================================
   About Section
   ======================================== */
.about__inner {
    padding: var(--spacing-xl) 0;
}

.about__header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about__text p {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.8;
}

.about__metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--border-color);
}

.metric {
    text-align: center;
}

.metric__number {
    display: block;
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.metric__label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.visual-card {
    background: var(--bg-white);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
}

.crystal-svg {
    width: 100%;
    max-width: 250px;
    height: auto;
}

.visual-text {
    text-align: center;
}

.visual-text h4 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.visual-text p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========================================
   Solutions Section
   ======================================== */
.solutions {
    background: var(--bg-white);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.solution-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-teal));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-light-blue);
}

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

.solution-card__icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-lg);
    color: var(--accent-blue);
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.solution-card__icon svg {
    width: 24px;
    height: 24px;
}

.solution-card__title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.solution-card__text {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.solution-card__tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-blue);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

/* ========================================
   Services Section
   ======================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-card__number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.service-card__title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.service-card__text {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.service-card__list {
    list-style: none;
}

.service-card__list li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.service-card__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 6px;
    height: 6px;
    background: var(--accent-teal);
    border-radius: 50%;
}

/* ========================================
   Requisites / Competencies Section
   ======================================== */
.competencies {
    background: var(--bg-white);
}

.requisites-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.requisites-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.requisites-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-light-blue);
}

.requisites-card h3 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.req-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--spacing-sm) 0;
    gap: var(--spacing-md);
}

.req-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    flex-shrink: 0;
    min-width: 140px;
}

.req-value {
    font-size: 0.9375rem;
    color: var(--text-primary);
    text-align: right;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.req-value a {
    color: var(--accent-blue);
}

.req-value a:hover {
    text-decoration: underline;
}

.pdf-download-card {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(45, 212, 191, 0.05));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl) var(--spacing-2xl);
    flex-wrap: wrap;
}

.pdf-icon {
    width: 48px;
    height: 48px;
    color: var(--accent-blue);
    flex-shrink: 0;
}

.pdf-content h4 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.pdf-content p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

/* ========================================
   Partners Section
   ======================================== */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-xl);
}

.partner-logo {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100px;
    transition: all var(--transition-normal);
}

.partner-logo:hover {
    border-color: var(--accent-light-blue);
    box-shadow: var(--shadow-md);
}

.partner-logo span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ========================================
   Contacts Section
   ======================================== */
.contacts {
    background: var(--bg-white);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-info__card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.contact-info__card:hover {
    border-color: var(--accent-light-blue);
    box-shadow: var(--shadow-md);
}

.contact-info__icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(45, 212, 191, 0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
}

.contact-info__icon svg {
    width: 20px;
    height: 20px;
}

.contact-info__content h4 {
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.contact-info__content a,
.contact-info__content p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.contact-info__content a:hover {
    color: var(--accent-blue);
}

.contact-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

/* ========================================
   Map Section
   ======================================== */
.map__inner {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.map__container {
    width: 100%;
    height: 400px;
    background: var(--bg-secondary);
}

.map__container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.map__overlay {
    position: absolute;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--text-primary);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-3xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__brand .logo__text {
    color: var(--bg-white);
}

.footer__description {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-top: var(--spacing-md);
    max-width: 300px;
}

.footer__heading {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--bg-white);
    margin-bottom: var(--spacing-lg);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__links a {
    font-size: 0.9375rem;
    transition: color var(--transition-normal);
}

.footer__links a:hover {
    color: var(--accent-light-blue);
}

.footer__contacts li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: 0.9375rem;
}

.footer__contacts svg {
    flex-shrink: 0;
    margin-top: 4px;
}

.footer__contacts a:hover {
    color: var(--accent-light-blue);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    font-size: 0.875rem;
}

.footer__bottom a {
    transition: color var(--transition-normal);
}

.footer__bottom a:hover {
    color: var(--accent-light-blue);
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-hidden {
    opacity: 0;
    transform: translateY(30px);
}

/* ========================================
   Responsive - Tablet
   ======================================== */
@media (max-width: 1024px) {
    .header__phone,
    .header__email {
        display: none;
    }
    
    .about__content {
        grid-template-columns: 1fr;
    }
    
    .footer__top {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-2xl);
    }
}

/* ========================================
   Responsive - Mobile
   ======================================== */
@media (max-width: 768px) {
    .section {
        padding: var(--spacing-3xl) 0;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .header__inner {
        height: 64px;
    }
    
    .nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        padding: var(--spacing-xl);
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .nav--open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav__list {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .header__burger {
        display: flex;
    }
    
    .header__actions .btn {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding-top: 100px;
        padding-bottom: var(--spacing-2xl);
    }
    
    .hero__title {
        font-size: 1.75rem;
    }
    
    .hero__buttons {
        flex-direction: column;
    }
    
    .hero__cards {
        grid-template-columns: 1fr;
    }
    
    .hero__scroll {
        display: none;
    }
    
    .about__metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solutions-grid,
    .services-grid,
    .competencies-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-buttons {
        flex-direction: column;
    }
    
    .contact-buttons .btn {
        width: 100%;
    }
    
    .footer__top {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .footer__bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 1.5rem;
    }
    
    .about__metrics {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }
    
    .partners-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .req-row {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .req-label {
        min-width: auto;
    }
    
    .req-value {
        text-align: left;
    }
    
    .pdf-download-card {
        flex-direction: column;
        text-align: center;
    }
}

.requisites-container {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}