/* ========================================
   ШАБЛОН САЙТА ПОДГРУЗИ
   ======================================== */

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

body {
    font-family: var(--font-body);
    background-color: #f8f9fb;
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

.container-2 {
    width: 100%;
    margin: 0;
    padding: 0;
}

/* === HEADER CONTAINER === */
.header-container {
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* === TOP BAR === */
.top-bar {
    background: var(--gradient-primary);
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-medium);
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--color-text-white);
    transition: var(--transition-fast);
}

.logo-link:hover {
    transform: translateY(-1px);
}

.logo-square,
.logo-rectangle {
    height: 40px;
    width: auto;
    margin-right: var(--spacing-md);
    transition: var(--transition-fast);
}

.logo-square {
    display: none;
}

.logo-rectangle {
    display: block;
}


.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-background-glass);
    border-radius: var(--radius-medium);
    color: var(--color-text-white);
    text-decoration: none;
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
}

.social-link:hover {
    background: var(--color-background-glass-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* === НАВИГАЦИЯ === */
.main-nav {
    background: var(--color-background-white);
    border-bottom: 1px solid var(--color-border-light);
    padding: 0;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-item {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-medium);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 50%;
}

/* === БЛОК АВТОРИЗАЦИИ === */
.auth-block {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.auth-links {
    display: flex;
    gap: var(--spacing-md);
}

.auth-links .btn {
    min-width: 120px;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

/* Специфичные стили для кнопок в хедере - переопределяют .page-content .btn */
.auth-block .btn {
    width: auto !important;
    padding: var(--spacing-md) var(--spacing-lg) !important;
    font-size: var(--font-size-sm) !important;
    margin-bottom: 0 !important;
    min-height: 44px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-decoration: none !important;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Специфичные стили для кнопок в user-info - переопределяют .page-content .btn */
.user-info .btn {
    width: auto !important;
    padding: var(--spacing-md) var(--spacing-lg) !important;
    font-size: var(--font-size-sm) !important;
    margin-bottom: 0 !important;
    min-height: 44px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-decoration: none !important;
}

.user-email {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: color 0.2s ease;
    cursor: pointer;
}

.user-email:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.user-menu {
    position: relative;
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-medium);
    transition: var(--transition-fast);
}

.user-menu:hover {
    background: var(--color-background-light);
}

.user-name {
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--color-background-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-large);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
    z-index: 1001;
}

.user-menu.active .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
    border-bottom: 1px solid var(--color-border-light);
}

.dropdown-link:last-child {
    border-bottom: none;
}

.dropdown-link:hover {
    background: var(--color-background-light);
    color: var(--color-primary);
}

.dropdown-link.logout {
    color: var(--color-error);
}

.dropdown-link.logout:hover {
    background: var(--color-error-bg);
}

/* === ОСНОВНОЙ КОНТЕНТ === */
.main-content {
    flex: 1;
    min-height: calc(100vh - 200px);
}

/* === ГЛАВНАЯ СТРАНИЦА === */

/* Hero Section */
.hero-section {
    color: var(--color-text-primary);
    text-align: left;
    width: 100%;
}

.hero-content {
    width: 100%;
}

.hero-title-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.hero-logo {
    height: 60px;
    min-height: 60px;
    width: auto;
    flex-shrink: 0;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 600;
    margin: 0;
    color: var(--color-text-primary);
    line-height: 1.2;
}

.hero-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.hero-steps {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xxxl);
    margin-bottom: var(--spacing-xxxl);
    flex-wrap: wrap;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    max-width: 200px;
}

.step-number {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-white);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.step-text {
    font-size: var(--font-size-lg);
    color: var(--color-text-white);
    text-align: center;
    line-height: 1.4;
}

.hero-conclusion {
    font-size: var(--font-size-lg);
    color: var(--color-text-white);
    opacity: 0.8;
    font-weight: var(--font-weight-medium);
}

.limits-card {
    background: var(--color-background-light);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-medium);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0 0 0;
    box-shadow: var(--shadow-small);
    max-width: 400px;
}

.limits-card h3 {
    font-family: var(--font-heading);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

/* Main Content Section */
.main-content-section {
    padding: var(--spacing-xxxxl) 0;
    margin: 0;
}

.content-layout {
    display: flex;
    gap: var(--spacing-xxxl);
    align-items: flex-start;
}

/* Upload Section */
.upload-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.upload-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxl);
}

.upload-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxxl);
    align-items: start;
}

.upload-left {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.upload-right {
    background: var(--color-background-light);
    padding: var(--spacing-xxxl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-medium);
    position: sticky;
    top: var(--spacing-xl);
}

.upload-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.upload-area {
    background: var(--color-background-white);
    border: 3px dashed var(--color-border-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xxxxl);
    text-align: center;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-fast);
    cursor: pointer;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.upload-area:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
}

.upload-area.drag-over {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.7;
}

.upload-description {
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
}

.upload-formats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.format-item {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
}

.upload-btn {
    background: var(--color-primary);
    color: var(--color-text-white);
    border: none;
    border-radius: var(--radius-large);
    padding: var(--spacing-lg) var(--spacing-xxl);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-medium);
}

.upload-btn:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
}

.upload-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.checkbox-option {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    cursor: pointer;
    padding: var(--spacing-md);
    border-radius: var(--radius-medium);
    transition: var(--transition-fast);
}

.checkbox-option:hover {
    background: var(--color-background-light);
}

.checkbox-option input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-small);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    flex-shrink: 0;
    margin-top: 2px;
}

.checkbox-option input[type="checkbox"]:checked + .checkmark {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.checkbox-option input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    color: var(--color-text-white);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
}

.option-text {
    color: var(--color-text-primary);
    font-size: var(--font-size-md);
    line-height: 1.5;
}

.more-options {
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    align-self: flex-end;
    transition: var(--transition-fast);
}

.more-options:hover {
    text-decoration: underline;
}

.send-btn {
    background: var(--color-primary);
    color: var(--color-text-white);
    border: none;
    border-radius: var(--radius-large);
    padding: var(--spacing-lg) var(--spacing-xxxl);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-medium);
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
}

.send-btn:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-xxxl);
    font-size: var(--font-size-xl);
}

/* Hero link */
.hero-link {
    color: var(--color-primary);
    text-decoration: underline;
    font-weight: var(--font-weight-semibold);
    transition: all 0.3s ease;
}

.hero-link:hover {
    color: var(--color-primary-dark);
    text-decoration: none;
    transform: translateY(-1px);
}

/* How it works section */
.how-it-works-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-xxl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.how-it-works-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxxl);
}

.how-step {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.how-step-number {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    color: var(--color-text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
    box-shadow: var(--shadow-medium);
}

.how-step-content {
    flex: 1;
}

.how-step-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.how-step-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-md);
    line-height: 1.5;
    margin: 0;
}

.how-it-works-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border-light);
}

.how-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-background-white);
    border-radius: var(--radius-medium);
    border: 1px solid var(--color-border-light);
    transition: var(--transition-fast);
}

.how-feature:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-small);
}

.how-feature-icon {
    font-size: var(--font-size-lg);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.how-feature-text {
    color: var(--color-text-primary);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
}

/* Features List in Upload Section */
.features-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-background-light);
    border-radius: var(--radius-medium);
    transition: var(--transition-fast);
}

.feature-item:hover {
    background: var(--color-background-white);
    box-shadow: var(--shadow-small);
}

.feature-item .feature-icon {
    font-size: var(--font-size-xl);
    flex-shrink: 0;
    margin-top: var(--spacing-xs);
}

.feature-content {
    flex: 1;
}

.feature-item .feature-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.feature-item .feature-description {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    margin: 0;
}

/* Features Section */
.features-section {
    padding-bottom: var(--spacing-xxxl);
    margin: 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-xxxl);
    color: var(--color-text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xxxl);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
    align-items: stretch;
}

.feature-card {
    background: var(--color-background-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-medium);
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    width: 100%;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-fast);
}

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

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

.feature-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    border-radius: 50%;
    margin: 0 auto var(--spacing-md);
    transition: var(--transition-fast);
}

.feature-card:hover .feature-icon {
    background: var(--gradient-primary);
    transform: scale(1.1);
}

.feature-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.feature-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    text-align: left;
    flex: 1;
    display: flex;
    align-items: center;
}

.features-footer {
    text-align: right;
    margin-top: var(--spacing-xxl);
}

.find-out-more {
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.find-out-more:hover {
    text-decoration: underline;
    transform: translateX(4px);
}

.find-out-more::after {
    content: '→';
    transition: var(--transition-fast);
}

.find-out-more:hover::after {
    transform: translateX(4px);
}

.info-icon {
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    border-radius: 50%;
    margin-right: var(--spacing-sm);
    font-size: 12px;
}

/* How it works */
.how-it-works {
    flex: 1;
    background: var(--color-background-light);
    padding: var(--spacing-xxxl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-medium);
    position: static;
    top: var(--spacing-xl);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.step {
    text-align: left;
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-background-white);
    border-radius: var(--radius-medium);
    border: 1px solid var(--color-border-light);
    transition: var(--transition-fast);
}

.step:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-small);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    color: var(--color-text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
    box-shadow: var(--shadow-medium);
}

.step-content {
    flex: 1;
}

.step-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.step-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin: 0;
}

/* Upload States */
.uploading {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

.upload-success {
    text-align: center;
}

.success-icon {
    font-size: var(--font-size-xxxl);
    margin-bottom: var(--spacing-lg);
}

.upload-success h3 {
    font-family: var(--font-heading);
    color: var(--color-success);
    margin-bottom: var(--spacing-lg);
}

.file-info {
    background: var(--color-background-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-medium);
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.file-info p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.upload-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.upload-error {
    text-align: center;
}

.error-icon {
    font-size: var(--font-size-xxxl);
    margin-bottom: var(--spacing-lg);
}

.upload-error h3 {
    font-family: var(--font-heading);
    color: var(--color-error);
    margin-bottom: var(--spacing-lg);
}

.upload-error p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.breadcrumbs {
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.breadcrumb-item {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.breadcrumb-item:hover {
    color: var(--color-primary);
}

.breadcrumb-item.current {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
}

.breadcrumb-separator {
    margin: 0 var(--spacing-sm);
    color: var(--color-text-secondary);
}

.page-header {
    margin-bottom: var(--spacing-xxl);
    text-align: center;
}

.page-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-xxxxl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.page-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.page-content {
    width: 100%;
    min-height: 60vh;
    padding: var(--spacing-xxl) 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.page-content .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* === СТИЛИ ДЛЯ КНОПОК === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-body);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    border: none;
    border-radius: var(--radius-large);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-height: 44px;
    text-align: center;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn:active {
    transform: translateY(-1px) scale(0.98);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transition: all 0.1s ease;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--gradient-primary);
    color: var(--color-text-white);
    border-color: transparent;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    transform: translateY(-3px) scale(1.02);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: var(--gradient-primary);
    color: var(--color-text-white);
    border-color: transparent;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

/* === СТИЛИ ДЛЯ ФОРМ === */
.page-content .form-group {
    margin-bottom: var(--spacing-xl);
}

.page-content .form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
}

.page-content .form-group input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-large);
    font-size: var(--font-size-lg);
    transition: border-color var(--transition-fast);
    box-sizing: border-box;
}

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

.page-content .btn {
    width: 100%;
    padding: var(--spacing-lg);
    background: var(--gradient-primary);
    color: var(--color-text-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-large);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    text-transform: none;
    letter-spacing: normal;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-content .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.page-content .btn:hover::before {
    left: 100%;
}

.page-content .btn:hover {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    border-color: rgba(255, 255, 255, 0.3);
}

.page-content .btn:active {
    transform: translateY(-1px) scale(0.98);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    transition: all 0.1s ease;
}

.page-content .btn:disabled {
    background: var(--color-disabled);
    cursor: not-allowed;
    transform: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-color: transparent;
}

.page-content .error {
    background: var(--color-error-bg);
    color: var(--color-error-text);
    padding: var(--spacing-md);
    border-radius: var(--radius-medium);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-md);
}

.page-content .success {
    background: var(--color-success-bg);
    color: var(--color-success-text);
    padding: var(--spacing-md);
    border-radius: var(--radius-medium);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-md);
}

.page-content .link {
    text-align: center;
    color: var(--color-text-secondary);
}

.page-content .link a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
}

.page-content .link a:hover {
    text-decoration: underline;
}

.page-content .password-requirements {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

/* === СТИЛИ ДЛЯ СТРАНИЦЫ РЕГИСТРАЦИИ === */
.page-content .container {
    background: var(--color-background-white);
    border-radius: var(--radius-xxl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-xxxxl);
    width: 100%;
    margin: 0 auto;
}

.page-content .logo {
    text-align: center;
    margin-bottom: var(--spacing-xxxl);
}

.page-content .logo h1 {
    font-family: var(--font-heading);
    color: var(--color-text-primary);
    font-size: var(--font-size-xxxxl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.page-content .logo p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

/* === ФУТЕР === */
.main-footer {
    background: var(--color-background-light);
    border-top: 1px solid var(--color-border-light);
    padding: var(--spacing-xxxxl) 0 var(--spacing-xxl);
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xxxxl);
    margin-bottom: var(--spacing-xxxxl);
}

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

.footer-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.footer-subtitle {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
}

.footer-description {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--color-background-white);
    border-radius: var(--radius-medium);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-light);
}

.footer-social-link:hover {
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    font-size: var(--font-size-sm);
}

.footer-link:hover {
    color: var(--color-primary);
}

.footer-bottom {
    border-top: 1px solid var(--color-border-light);
    padding-top: var(--spacing-xxl);
}

.footer-legal {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-xxxxl);
}

.legal-info {
    flex: 1;
}

.legal-info p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.legal-links {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.legal-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-xs);
    transition: var(--transition-fast);
}

.legal-link:hover {
    color: var(--color-primary);
}

.company-info {
    text-align: right;
    flex: 1;
}

.company-name {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.company-address,
.company-contacts,
.company-legal {
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.contact-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.contact-link:hover {
    color: var(--color-primary);
}

/* === АДАПТИВНОСТЬ === */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xxl);
    }
    
    .footer-legal {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .company-info {
        text-align: left;
    }
    
    .content-layout {
        flex-direction: column;
        gap: var(--spacing-xxl);
    }
    
    .how-it-works {
        position: static;
        order: -1;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .top-bar-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        padding: var(--spacing-lg) 0;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .auth-block {
        width: 100%;
        justify-content: center;
    }
    
    .auth-links {
        width: 100%;
        justify-content: center;
    }
    
    .auth-links .btn {
        flex: 1;
        max-width: 150px;
    }
    
    .logo-square {
        display: none;
    }
    
    .logo-rectangle {
        display: block;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .legal-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .page-title {
        font-size: var(--font-size-xxxl);
    }
    
    .main-content {
        padding: var(--spacing-xl) 0;
    }
    
    /* Главная страница - мобильные стили */
    .hero-section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title-container {
        gap: var(--spacing-md);
    }
    
    .hero-logo {
        height: 50px;
        min-height: 50px;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero-description {
        font-size: var(--font-size-md);
    }
    
    .hero-steps {
        flex-direction: column;
        gap: var(--spacing-xl);
        align-items: center;
    }
    
    .step-item {
        max-width: 100%;
    }
    
    .upload-container {
        padding: 0 var(--spacing-md);
    }
    
    .content-layout {
        flex-direction: column;
        gap: var(--spacing-xl);
    }
    
    .how-it-works {
        position: static;
        order: -1;
        padding: var(--spacing-xl);
    }
    
    .steps {
        gap: var(--spacing-lg);
    }
    
    .step {
        padding: var(--spacing-md);
    }
    
    .upload-area {
        padding: var(--spacing-xxl);
    }
    
    .upload-formats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .upload-info {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }
    
    .features-list {
        gap: var(--spacing-md);
    }
    
    .feature-item {
        padding: var(--spacing-md);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
        max-width: 800px;
    }
    
    .features-footer {
        text-align: center;
    }
    
    .steps {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .upload-links {
        flex-direction: column;
        align-items: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .upload-title {
        font-size: 1.5rem;
    }
    
    .how-it-works-title {
        font-size: var(--font-size-xl);
    }
    
    .how-step {
        gap: var(--spacing-md);
    }
    
    .how-step-number {
        width: 28px;
        height: 28px;
        font-size: var(--font-size-md);
    }
    
    .how-step-title {
        font-size: var(--font-size-md);
    }
    
    .how-step-description {
        font-size: var(--font-size-sm);
    }
    
    .how-it-works-features {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .how-feature {
        flex: 1;
        min-width: 120px;
        padding: var(--spacing-sm);
    }
    
    .how-feature-text {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .nav-menu {
        flex-direction: column;
        width: 100%;
        text-align: center;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-md);
        border-radius: var(--radius-large);
    }
    
    
    .page-title {
        font-size: var(--font-size-xxl);
    }
    
    .footer-legal {
        text-align: center;
    }
    
    .company-info {
        text-align: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        max-width: 100%;
    }
}

/* === ДОПОЛНИТЕЛЬНЫЕ УТИЛИТЫ === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* === АНИМАЦИИ === */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

/* === СОСТОЯНИЯ ЗАГРУЗКИ === */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--color-primary);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}