:root {
    --color-primary: #0A1A3A;
    --color-secondary: #152642;
    --color-accent: #1E3A8A;
    --color-accent-light: #2563eb;
    --color-text: #ffffff;
    --color-text-secondary: #94a3b8;
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-border: #1e293b;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'SF Pro Display', sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-primary);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-xl);
    text-align: center;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius-md);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: var(--font-family);
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    color: var(--color-text);
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 58, 138, 0.4);
}

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

.btn--secondary:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 26, 58, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.nav__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Company Logo Styles */
.nav__logo-img {
    height: 40px;
    width: auto;
    display: none;
}

.logo--company:not(.logo-placeholder) {
    display: block;
}

.logo--company.logo-placeholder {
    display: none;
}

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

.nav__link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-left: var(--spacing-xl);
}

.lang-switcher {
    background: var(--color-accent);
    color: var(--color-text);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.lang-switcher:hover {
    background: var(--color-accent-light);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    background: radial-gradient(circle at 50% 50%, rgba(30, 58, 138, 0.2) 0%, transparent 50%);
    position: relative;
    padding-bottom: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.1) 0%, transparent 100%);
    pointer-events: none;
}

.hero__content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

/* Product Logo Styles */
.hero__logo-wrapper {
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__logo-img {
    max-width: 300px;
    width: 100%;
    height: auto;
    display: none;
}

.logo--product:not(.logo-placeholder) {
    display: block;
}

.logo--product.logo-placeholder {
    display: none;
}

.hero__title {
    font-size: 1.7rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.3rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 400;
}

.hero__slogan {
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--color-accent-light);
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.02em;
}

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

.problem {
    padding: var(--spacing-xxl) 0;
    background: var(--color-secondary);
}

.comparison-table {
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid var(--color-border);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-cell {
    padding: var(--spacing-md);
    font-size: 1.1rem;
    border-right: 1px solid var(--color-border);
}

.comparison-cell:last-child {
    border-right: none;
}

.comparison-cell--header {
    background: var(--color-accent);
    font-weight: 700;
    color: var(--color-text);
}

.comparison-cell--danger {
    color: var(--color-danger);
}

.comparison-cell--highlight {
    background: var(--color-accent);
}

.comparison-cell--success {
    color: var(--color-success);
    font-weight: 700;
}

.principle {
    padding: var(--spacing-xxl) 0;
    background: var(--color-primary);
}

.principle__diagram {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.diagram-step {
    text-align: center;
}

.diagram-box {
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    font-weight: 700;
    font-size: 1.2rem;
    min-width: 200px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.diagram-box--request {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    color: var(--color-text);
}

.diagram-box--validation {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent) 100%);
    color: var(--color-text);
}

.diagram-box--response {
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
    color: var(--color-text);
}

.diagram-arrow {
    font-size: 2rem;
    color: var(--color-text-secondary);
}

.principle__theses {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.thesis {
    background: var(--color-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
}

.thesis--wide {
    grid-column: 1 / -1;
}

.thesis__title {
    font-size: 1.1rem;
    font-weight: 600;
}

.principle__explanation {
    text-align: center;
    font-size: 1.3rem;
    color: var(--color-text-secondary);
    font-style: italic;
}

.use-cases {
    padding: var(--spacing-xxl) 0;
    background: var(--color-secondary);
}

.use-cases__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.use-case {
    background: var(--color-primary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.use-case:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(30, 58, 138, 0.3);
    border-color: var(--color-accent);
}

.use-case__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.use-case__icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--color-text);
}

.use-case__title {
    font-size: 1.2rem;
    font-weight: 600;
}

.regulatory {
    padding: var(--spacing-xxl) 0;
    background: var(--color-primary);
}

.regulatory__list {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.regulatory-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-secondary);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
    border: 1px solid var(--color-border);
}

.regulatory-item__icon {
    width: 40px;
    height: 40px;
    background: var(--color-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.regulatory-item__text {
    font-size: 1.1rem;
}

.regulatory__explanation {
    text-align: center;
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 800px;
    margin: 0 auto;
    font-style: italic;
}

.status {
    padding: var(--spacing-xxl) 0;
    background: var(--color-secondary);
}

.status__current {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.status-item {
    background: var(--color-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
}

.status-item__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.status-item__value {
    font-size: 1.2rem;
    font-weight: 700;
}

.status-item__value--success {
    color: var(--color-success);
}

.status__roadmap {
    background: var(--color-primary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
}

.roadmap__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.roadmap__timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.roadmap-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-secondary);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--color-accent);
}

.roadmap-item__period {
    font-weight: 700;
    color: var(--color-accent-light);
    min-width: 120px;
}

.roadmap-item__description {
    font-size: 1.1rem;
}

.investors {
    padding: var(--spacing-xxl) 0;
    background: var(--color-primary);
}

.investors__data {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.investor-metric {
    background: var(--color-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
}

.investor-metric__label {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.investor-metric__value {
    font-size: 2rem;
    font-weight: 800;
}

.investor-metric__value--text {
    font-size: 1.3rem;
}

.investors__cta {
    text-align: center;
}

.founder {
    padding: var(--spacing-xxl) 0;
    background: var(--color-secondary);
}

.founder__content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.founder__photo-wrapper {
    width: 100%;
    max-width: 320px;      /* было 400 — это реально много */
    margin: 0 auto;
}

.founder__photo {
    width: 100%;
    aspect-ratio: 1 / 1;   /* 🔥 КЛЮЧ */
    object-fit: cover;     /* не растягивается */
    border-radius: var(--border-radius-lg);
    display: block;
}

.founder__photo-text {
    color: var(--color-text);
    font-size: 1.1rem;
    font-weight: 500;
}

.founder__name {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.founder__role {
    font-size: 1.3rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.founder__theses {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.founder__theses li {
    font-size: 1.2rem;
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
}

.founder__theses li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent-light);
    font-weight: 700;
}

.contact {
    padding: var(--spacing-xxl) 0;
    background: var(--color-primary);
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
}

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

.contact-item__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.contact-item__label {
    color: var(--color-text-secondary);
    font-weight: 600;
}

.contact-item__value {
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
}

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

.contact__form-wrapper {
    background: var(--color-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.2);
}

.form-select {
    cursor: pointer;
}

.form-honeypot {
    display: none;
}

.form-success {
    display: none;
    padding: var(--spacing-lg);
    background: var(--color-success);
    border-radius: var(--border-radius-md);
    text-align: center;
    font-weight: 600;
    color: var(--color-text);
}

.form-success.active {
    display: block;
}

.contact-form.hidden {
    display: none;
}

.footer {
    background: var(--color-secondary);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
}

.footer__copyright {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.fade-in {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in:not(.visible) {
    opacity: 1;
    transform: translateY(0);
}

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

.fade-in.visible.animate {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1024px) {
    .hero__title {
        font-size: 1.6rem;
    }

    .hero__subtitle {
        font-size: 1.3rem;
    }

    .hero__slogan {
        font-size: 1.5rem;
    }

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

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

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

    .founder__content,
    .contact__content {
        grid-template-columns: 1fr;
    }

    .founder__photo-wrapper {
        max-width: 300px;
    }
}