* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-blue: #3498db;
    --dark-blue: #2c3e50;
    --light-gray: #f8f9fa;
    --text-dark: #333;
    --text-light: #7f8c8d;
    --white: #ffffff;
    --danger: #e74c3c;
    --warning: #f39c12;
    --success: #27ae60;
    --offline: #95a5a6;
}

html, body {
    width: 100%;
    height: 100%;
    overflow-x: hidden;
}

html {
    overflow-y: scroll;
}

body {
    background: linear-gradient(135deg, #0c1e3e 0%, #1a3a6a 100%);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    font-size: 14px;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 15px;
}

.system-header {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 0.4rem 0;
    color: var(--white);
    font-size: 0.75rem;
    position: relative;
    z-index: 100;
}

.system-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
}

.system-status {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    flex-shrink: 0;
}

.system-time {
    font-family: 'Courier New', monospace;
    font-size: 0.7rem;
}

header {
    background: rgba(255,255,255,0.95);
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    position: relative;
    z-index: 99;
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.logo-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
}

.corp-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-blue);
    letter-spacing: -0.5px;
}

.corp-sublogo {
    font-size: 0.8rem;
    color: var(--text-light);
    border-top: 1px solid #bdc3c7;
    padding-top: 0.5rem;
}

.main-nav ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    list-style: none;
    gap: 0.3rem;
}

.main-nav ul li {
    flex: 1;
    min-width: 140px;
}

.main-nav ul li a {
    color: var(--dark-blue);
    text-decoration: none;
    padding: 0.8rem 0.5rem;
    border-radius: 6px;
    transition: all 0.3s;
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    display: block;
    text-align: center;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
}

.main-nav ul li a:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.main-content {
    background: var(--white);
    margin: 1rem auto;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    overflow: visible;
    max-width: 1400px;
    min-height: auto;
    height: auto;
    position: relative;
}

.content-header {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 1.5rem;
    position: relative;
}

.breadcrumbs {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 0.8rem;
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 5px;
}

.breadcrumbs a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    cursor: pointer;
    transition: color 0.3s;
    min-height: 20px;
    display: inline-flex;
    align-items: center;
}

.breadcrumbs a:hover {
    color: var(--white);
    text-decoration: underline;
}

.page-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    text-align: center;
}

.page-title h1 {
    color: var(--white);
    font-size: 1.6rem;
    margin: 0;
}

.project-id {
    background: rgba(255,255,255,0.2);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
}

.content-grid {
    display: flex;
    flex-direction: column;
    min-height: auto;
    height: auto;
    overflow: visible;
}

.sidebar {
    background: var(--light-gray);
    border-bottom: 1px solid #e9ecef;
    padding: 1.5rem;
    order: 2;
}

.user-card {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.user-name {
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.user-role {
    color: var(--text-light);
    font-size: 0.85rem;
    line-height: 1.4;
    margin-bottom: 1rem;
}

.user-status {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.status-badge {
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
}

.status-badge.confidential {
    background: var(--danger);
    color: var(--white);
}

.status-badge.online {
    background: var(--success);
    color: var(--white);
}

.status-badge.offline {
    background: var(--offline);
    color: var(--white);
}

.status-badge.ip-address {
    background: #3498db;
    color: var(--white);
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-menu a {
    display: block;
    padding: 1rem;
    color: var(--dark-blue);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s;
    cursor: pointer;
    min-height: 44px;
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    background: var(--white);
}

.nav-menu a:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.main-area {
    padding: 1.5rem;
    order: 1;
    overflow: visible;
    height: auto;
    min-height: auto;
}

.user-profile-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: 10px;
    border-left: 4px solid var(--primary-blue);
}

.user-profile-header h2 {
    color: var(--dark-blue);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.user-title {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.5;
}

.profile-section {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 2rem;
}

.photo-container {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.photo-protection {
    position: relative;
    display: block;
    cursor: pointer;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.profile-photo {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
    pointer-events: none;
}

.protection-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(44, 62, 80, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    opacity: 1;
    transition: opacity 0.3s ease;
}

.protection-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.protection-text {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

.protection-subtext {
    font-size: 0.8rem;
    opacity: 0.9;
}

.security-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--danger);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    z-index: 10;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.profile-content {
    flex: 1;
}

.profile-content h2 {
    color: var(--dark-blue);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    text-align: center;
}

.specialization {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    text-align: center;
}

.specialization h3 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.skill-category {
    background: var(--light-gray);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-blue);
}

.skill-category h4 {
    color: var(--dark-blue);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: 0.5rem 0;
    color: #5a6c7d;
    position: relative;
    padding-left: 1.5rem;
    text-align: left;
    font-size: 0.95rem;
    border-bottom: 1px solid #e9ecef;
}

.skill-list li:last-child {
    border-bottom: none;
}

.skill-list li:before {
    content: "▸";
    color: var(--primary-blue);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.system-alert {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 1.2rem;
    margin: 1.5rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

.alert-icon {
    font-size: 1.5rem;
}

.alert-content {
    flex: 1;
    font-size: 0.95rem;
}

/* Стили для блока статуса как в мобильной версии */
.mobile-status-info {
    background: #e8f4fd;
    border-radius: 10px;
    padding: 15px;
    border-left: 3px solid var(--primary-blue);
    position: relative;
    margin-top: 20px;
}

.mobile-status-info .status-item {
    margin-bottom: 8px;
    font-size: 14px;
    display: block;
}

.mobile-status-info .status-item:last-child {
    margin-bottom: 0;
}

.project-id-blur {
    background: #fff3cd;
    color: #856404;
    padding: 3px 6px;
    border-radius: 3px;
    font-weight: 600;
    margin: 3px 0;
    display: inline-block;
    border: 1px solid #ffeaa7;
}

.classified-red {
    color: var(--danger);
    font-weight: 700;
    background: rgba(231, 76, 60, 0.1);
    padding: 3px 6px;
    border-radius: 3px;
    display: inline-block;
}

.auth-required {
    font-size: 12px;
    color: var(--warning);
    font-weight: 600;
    margin-bottom: 3px;
    display: block;
}

/* === СТИЛИ ДЛЯ СТРАНИЦЫ 404 === */
.error-container {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    border: 1px solid #dee2e6;
    margin: 30px 0;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.error-code {
    font-size: 120px;
    font-weight: 900;
    color: var(--dark-blue);
    margin-bottom: 20px;
    letter-spacing: 10px;
}

.error-number {
    display: inline-block;
    text-shadow: 3px 3px 0 rgba(0,0,0,0.1);
}

.error-icon {
    font-size: 80px;
    display: inline-block;
    margin: 0 20px;
    vertical-align: middle;
}

.error-message-main h2 {
    color: var(--danger);
    font-size: 32px;
    margin-bottom: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.error-description {
    font-size: 18px;
    color: var(--text-dark);
    line-height: 1.6;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.error-details {
    background: rgba(255,255,255,0.7);
    border-radius: 8px;
    padding: 20px;
    margin: 25px auto;
    max-width: 600px;
    border-left: 4px solid var(--warning);
}

.error-detail-item {
    margin-bottom: 10px;
    font-size: 16px;
    text-align: left;
    padding-left: 20px;
}

.error-detail-item:last-child {
    margin-bottom: 0;
}

.error-actions {
    margin: 30px 0;
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.error-actions .auth-button {
    padding: 15px 40px;
    font-size: 18px;
    border-radius: 8px;
    width: auto;
    min-width: 300px;
}

.back-button {
    color: var(--primary-blue);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 10px 20px;
    border: 2px solid var(--primary-blue);
    border-radius: 6px;
    transition: all 0.3s;
}

.back-button:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.security-notice {
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid var(--primary-blue);
    border-radius: 8px;
    padding: 20px;
    margin-top: 30px;
    text-align: left;
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.security-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.security-text {
    flex: 1;
    font-size: 14px;
    line-height: 1.5;
}

/* === КОНЕЦ СТИЛЕЙ ДЛЯ 404 === */

/* Модальное окно */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
    overflow-y: auto;
}

.modal-content {
    background: linear-gradient(135deg, var(--dark-blue) 0%, #34495e 100%);
    margin: 10% 10px;
    padding: 0;
    border-radius: 12px;
    width: auto;
    max-width: 450px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    position: relative;
    animation: modalAppearMobile 0.3s ease-out;
    overflow: hidden;
    color: var(--white);
    margin-left: auto;
    margin-right: auto;
}

@keyframes modalAppearMobile {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    background: rgba(0,0,0,0.3);
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.modal-header h2 {
    color: var(--white);
    margin: 0;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-body {
    padding: 2rem;
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: rgba(255,255,255,0.7);
    background: none;
    border: none;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.3s;
    min-height: 35px;
}

.close:hover {
    color: var(--white);
    background: rgba(255,255,255,0.1);
}

.auth-form .form-group {
    margin-bottom: 1.5rem;
}

.auth-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: rgba(255,255,255,0.9);
    font-weight: 500;
    font-size: 0.9rem;
}

.auth-form input {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 6px;
    font-size: 16px;
    background: rgba(255,255,255,0.1);
    color: var(--white);
    transition: all 0.3s;
}

.auth-form input:focus {
    outline: none;
    border-color: var(--primary-blue);
    background: rgba(255,255,255,0.15);
}

.auth-form input::placeholder {
    color: rgba(255,255,255,0.3);
}

.auth-button {
    width: 100%;
    padding: 1.2rem;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 1rem;
    min-height: 50px;
}

.auth-button:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

.error-message {
    background: rgba(231, 76, 60, 0.2);
    color: var(--danger);
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    text-align: center;
    border: 1px solid rgba(231, 76, 60, 0.3);
    display: none;
    font-size: 0.9rem;
}

.modal-footer {
    padding: 1.5rem;
    background: rgba(0,0,0,0.2);
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.7);
}

.system-footer {
    background: var(--dark-blue);
    color: #bdc3c7;
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.8rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.footer-links a {
    color: #bdc3c7;
    text-decoration: none;
    cursor: pointer;
    min-height: 20px;
    display: inline-flex;
    align-items: center;
    font-size: 0.85rem;
}

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

.footer-copyright {
    font-size: 0.75rem;
}

.confidential-badge {
    color: var(--danger);
    font-weight: 600;
}

/* Адаптивность для 404 страницы */
@media (max-width: 768px) {
    .error-code {
        font-size: 80px;
        letter-spacing: 5px;
    }
    
    .error-icon {
        font-size: 50px;
        margin: 0 10px;
    }
    
    .error-message-main h2 {
        font-size: 24px;
    }
    
    .error-description {
        font-size: 16px;
    }
    
    .error-actions .auth-button {
        min-width: 100%;
    }
    
    .security-notice {
        flex-direction: column;
        text-align: center;
    }
}

@media (min-width: 768px) {
    body {
        font-size: 15px;
    }
    
    .container {
        padding: 0 20px;
    }
    
    .system-header {
        padding: 0.5rem 0;
        font-size: 0.8rem;
    }
    
    .system-info {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
    
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
    
    .logo-section {
        flex-direction: row;
        align-items: center;
        gap: 1rem;
    }
    
    .corp-sublogo {
        border-top: none;
        border-left: 1px solid #bdc3c7;
        padding-left: 1rem;
        padding-top: 0;
    }
    
    .main-nav ul {
        gap: 0.5rem;
    }
    
    .main-nav ul li {
        flex: none;
        min-width: auto;
    }
    
    .main-nav ul li a {
        padding: 0.8rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .main-content {
        margin: 2rem auto;
        border-radius: 12px;
    }
    
    .content-header {
        padding: 2rem;
    }
    
    .page-title {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }
    
    .page-title h1 {
        font-size: 2rem;
    }
    
    .content-grid {
        display: grid;
        grid-template-columns: 300px 1fr;
        gap: 0;
    }
    
    .sidebar {
        order: 1;
        border-right: 1px solid #e9ecef;
        border-bottom: none;
        padding: 2rem;
    }
    
    .main-area {
        order: 2;
        padding: 2rem;
    }
    
    .user-card {
        text-align: left;
        padding: 1.5rem;
    }
    
    .user-status {
        justify-content: flex-start;
    }
    
    .user-profile-header {
        text-align: left;
        padding: 2rem;
    }
    
    .user-profile-header h2 {
        font-size: 2rem;
    }
    
    .profile-section {
        display: grid;
        grid-template-columns: 400px 1fr;
        gap: 3rem;
        text-align: left;
    }
    
    .photo-container {
        max-width: none;
        margin: 0;
    }
    
    .profile-photo {
        height: 550px;
    }
    
    .protection-overlay {
        opacity: 0;
    }
    
    .photo-protection:hover .protection-overlay {
        opacity: 1;
    }
    
    .profile-content h2 {
        text-align: left;
        font-size: 1.8rem;
    }
    
    .skills-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 2rem;
    }
    
    .system-alert {
        flex-direction: row;
        text-align: left;
        padding: 1.5rem;
    }
    
    .mobile-status-info {
        text-align: left;
        margin-top: 30px;
    }
    
    .modal-content {
        margin: 5% auto;
        animation: modalAppear 0.4s ease-out;
    }
    
    @keyframes modalAppear {
        from {
            opacity: 0;
            transform: translateY(-30px) scale(0.9);
        }
        to {
            opacity: 1;
            transform: translateY(0) scale(1);
        }
    }
    
    .footer-links {
        flex-direction: row;
        justify-content: center;
        gap: 2rem;
    }
}

@media (min-width: 1024px) {
    .profile-section {
        gap: 4rem;
    }
    
    .profile-photo {
        height: 600px;
    }
    
    .corp-logo {
        font-size: 1.8rem;
    }
    
    .page-title h1 {
        font-size: 2.2rem;
    }
    
    .photo-container {
        max-width: 450px;
    }
    
    .mobile-status-info {
        padding: 20px;
    }
    
    .mobile-status-info .status-item {
        font-size: 15px;
    }
}