/* ===================================
   Layout Styles
   =================================== */

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

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* Header */
.header {
    background-color: #ffffff;
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) 0;
    gap: var(--spacing-sm);
}

.logo {
    margin: 0;
    font-size: var(--font-size-xl);
}

html[lang="ru"] .logo {
    margin-left: -248px;
}

html[lang="en"] .logo {
    margin-left: -348px;
}

.logo a {
    color: var(--color-gray-900);
    text-decoration: none;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
}

.logo a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--color-gray-700);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.nav-link:hover {
    background-color: var(--color-gray-100);
    color: var(--color-primary);
    text-decoration: none;
}

.nav-link:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Language Switcher */
.language-switcher {
    margin-left: var(--spacing-md);
}

.language-select {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    background-color: #ffffff;
    color: var(--color-gray-700);
    cursor: pointer;
    transition: var(--transition-base);
}

.language-select:hover {
    border-color: var(--color-primary);
    background-color: var(--color-gray-50);
}

.language-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .logo-block {
        flex-direction: row;
        justify-content: flex-start;
        gap: var(--spacing-xs);
    }
    
    .logo-image-wrapper {
        width: 10px;
        height: 10px;
    }
    
    .nav {
        flex-direction: column;
        width: 100%;
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-sm);
        width: 100%;
    }
    
    .nav-link {
        display: block;
        text-align: center;
    }
    
    .language-switcher {
        margin-left: 0;
        margin-top: var(--spacing-sm);
        width: 100%;
    }
    
    .language-select {
        width: 100%;
    }
}

/* Main Content */
.main {
    flex: 1;
    padding: var(--spacing-2xl) 0;
    min-height: calc(100vh - 200px);
}

/* Footer */
.footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--spacing-xl) 0;
    margin-top: auto;
    text-align: center;
}

.footer p {
    margin: 0;
    font-size: var(--font-size-sm);
}

/* Page Header */
.page-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--color-gray-200);
}

.page-header h2 {
    margin-bottom: var(--spacing-md);
}

.lead {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    font-weight: 400;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    align-items: stretch;
}

.content-grid .card {
    height: 100%;
}

@media (max-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* Messages */
.messages {
    margin-bottom: var(--spacing-xl);
}

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background-color: #d1fae5;
    border-color: var(--color-success);
    color: #065f46;
}

.alert-error,
.alert-danger {
    background-color: #fee2e2;
    border-color: var(--color-danger);
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    border-color: var(--color-warning);
    color: #92400e;
}

.alert-info {
    background-color: #cffafe;
    border-color: var(--color-info);
    color: #155e75;
}