/* assets/css/style.css */

/* Modern Design System */
:root {
    /* Color Palette */
    --primary-gradient: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
    --secondary-gradient: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
    --primary-color: #2196F3;
    --primary-dark: #1976D2;
    --primary-light: #BBDEFB;
    --secondary-color: #4CAF50;
    --accent-color: #FF4081;
    --background-color: #F5F7FA;
    --surface-color: #FFFFFF;
    --text-primary: #263238;
    --text-secondary: #546E7A;
    --text-hint: #78909C;
    --error-color: #F44336;
    --success-color: #4CAF50;
    --warning-color: #FFC107;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.1);
    --shadow-xl: 0 12px 24px rgba(0,0,0,0.15);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    animation: fadeIn 0.5s ease;
}

/* Header */
header {
    background: var(--surface-color);
    box-shadow: var(--shadow-md);
    /* position: sticky; */ /* Убрано, чтобы открепить шапку */
    /* top: 0; */
    /* z-index: 1000; */
    transition: all var(--transition-normal);
}

header:hover {
    box-shadow: var(--shadow-lg);
}

.header-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

header h1 {
    margin: 0;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: 2.5rem;
    text-align: center;
    transition: transform var(--transition-normal);
}

header h1:hover {
    transform: scale(1.02);
}

header h1 a {
    text-decoration: none;
    color: var(--text-color);
}

/* Navigation */
nav {
    width: 100%;
    display: flex;
    justify-content: center;
    padding: var(--spacing-md) 0;
}

nav form {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--background-color);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

nav form:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

#lang-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--primary-light);
    border-radius: var(--radius-sm);
    background: var(--surface-color);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    outline: none;
}

#lang-select:hover, #lang-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* Calculator Form */
.calculator-form {
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.calculator-form:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.calculator-form div {
    margin-bottom: var(--spacing-lg);
}

.calculator-form label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.calculator-form label:hover {
    color: var(--primary-color);
}

.calculator-form input[type="text"],
.calculator-form input[type="text"][inputmode="decimal"],
.calculator-form input[type="number"] {
    width: 100%;
    padding: 10px;
    border: 2px solid var(--primary-light);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-normal);
    outline: none;
}

.calculator-form input[type="text"]:hover,
.calculator-form input[type="text"][inputmode="decimal"]:hover,
.calculator-form input[type="number"]:hover {
    border-color: var(--primary-color);
}

.calculator-form input[type="text"]:focus,
.calculator-form input[type="text"][inputmode="decimal"]:focus,
.calculator-form input[type="number"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.calculator-form button {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.calculator-form button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    filter: brightness(1.1);
}

.calculator-form button:active {
    transform: translateY(0);
}

/* Results & Messages */
#result {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    border: 2px solid var(--primary-light);
    color: var(--primary-dark);
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

#error-message {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #FFEBEE 0%, #FFCDD2 100%);
    border: 2px solid #FFCDD2;
    color: var(--error-color);
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

/* Footer */
footer {
    background: var(--footer-bg);
    color: var(--text-color);
    text-align: center;
    padding: 2rem 1rem;
    margin-top: auto; /* Push footer to the bottom */
    border-top: 1px solid var(--border-color);
}

footer a {
    color: var(--accent-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Cookie Consent Banner */
.cookie-consent-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--background-color-light);
    color: var(--text-color);
    padding: 15px;
    z-index: 1000;
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    flex-wrap: wrap;
    gap: 15px;
}

.cookie-consent-text {
    margin: 0;
    background-color: #fff;
    padding: 10px;
    border-radius: 5px;
}

.cookie-accept-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.3s ease;
    flex-shrink: 0;
}

.cookie-accept-btn:hover {
    background-color: var(--accent-color-dark);
}

/* Privacy Policy Page */
.privacy-policy {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.privacy-policy h1 {
    margin-bottom: 1.5rem;
    color: var(--accent-color);
}

.privacy-policy h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--headings-color);
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
}

.privacy-policy p, .privacy-policy ul {
    line-height: 1.8;
}

.privacy-policy ul {
    padding-left: 2rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* RTL Support */
html[dir="rtl"] body {
    text-align: right;
}

html[dir="rtl"] nav form {
    flex-direction: row-reverse;
}

/* Responsive Design */
@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    main.container {
        padding: 0 var(--spacing-md) var(--spacing-md);
    }
    header h1 {
        font-size: 2rem;
    }
    nav form {
        flex-direction: column;
        width: 100%;
        max-width: 400px;
    }
    #search-form {
        flex-direction: row;
        width: 100%;
        max-width: none; /* Убираем ограничение от nav form */
    }
    #search-form input[type="search"] {
        flex-grow: 1;
    }
    .calculator-form {
        padding: var(--spacing-lg);
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #121212;
        --surface-color: #1E1E1E;
        --text-primary: #FFFFFF;
        --text-secondary: #B0BEC5;
        --text-hint: #78909C;
        --primary-light: rgba(33, 150, 243, 0.2);
    }
    
    .calculator-form {
        background: var(--surface-color);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    #lang-select {
        background: var(--surface-color);
        color: var(--text-primary);
        border-color: rgba(255, 255, 255, 0.1);
    }
    
    nav form {
        background: var(--surface-color);
    }
    
    #result {
        background: linear-gradient(135deg, rgba(33, 150, 243, 0.1) 0%, rgba(33, 150, 243, 0.2) 100%);
        border-color: rgba(33, 150, 243, 0.3);
    }
    
    #error-message {
        background: linear-gradient(135deg, rgba(244, 67, 54, 0.1) 0%, rgba(244, 67, 54, 0.2) 100%);
        border-color: rgba(244, 67, 54, 0.3);
    }
}

.dark-theme .header-content select {
    background-color: #444;
    color: #ddd;
    border-color: #666;
}

/* Breadcrumbs */
.breadcrumbs ol {
    list-style-type: none;
    padding: 0;
    margin: 0 0 1rem 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    font-size: 0.9rem;
}

.breadcrumbs li {
    margin: 0 var(--spacing-sm);
}

.breadcrumbs li:not(:last-child)::after {
    content: '/'; /* Возвращаем разделитель */
    margin-left: var(--spacing-sm);
    color: var(--text-secondary);
}

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

.breadcrumbs a:hover {
    text-decoration: underline;
}

.breadcrumbs li[aria-current="page"] {
    color: #555;
    font-weight: bold;
}

/* Header Controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Header Links */
.header-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    color: var(--primary-color);
    text-decoration: none;
    background: transparent;
    line-height: 1;
    font-weight: 600;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.header-link:hover {
    background: var(--primary-gradient);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.header-link--admin {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

.header-link--admin:hover {
    background: var(--secondary-gradient);
    color: #fff;
}

#search-form {
    display: flex;
    gap: 5px;
}

#search-form input[type="search"] {
    border: 1px solid #ccc;
    padding: 8px 15px;
    border-radius: 20px 0 0 20px; /* Скругляем только левые углы */
    margin-right: -1px; /* Стыкуем с кнопкой */
    height: 40px;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

#search-form input[type="search"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
    z-index: 2;
}

#search-form button {
    padding: 8px 20px;
    border: 1px solid var(--primary-color);
    background-color: var(--primary-color);
    color: white;
    cursor: pointer;
    border-radius: 0 20px 20px 0; /* Скругляем только правые углы */
    height: 40px;
    transition: background-color 0.3s, border-color 0.3s;
}

#search-form button:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.cookie-consent p {
    margin: 0;
    text-align: center;
}

.cookie-consent-buttons {
    margin-top: 10px;
}

/* Admin Mode Banner */
.admin-mode-banner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #ffc107; /* A noticeable yellow */
    color: #212529; /* Dark text for contrast */
    text-align: center;
    padding: 5px 0;
    font-size: 14px;
    font-weight: bold;
    z-index: 1050; /* High z-index to stay on top */
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Push down the body content when the admin banner is active */
body.admin-mode {
    padding-top: 28px; /* Adjust this to the height of your banner */
}

.breadcrumbs ol {
    margin-bottom: 20px; /* Add some space below the breadcrumbs */
}

/* Responsive design for header */
@media (max-width: 600px) {
    .header-controls {
        flex-direction: column;
        width: 100%;
    }

    #search-form {
        width: 100%;
        display: flex;
    }

    #search-form input[type="search"] {
        flex-grow: 1;
        min-width: 0;
    }
}

/* Main content styles */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    animation: fadeIn 0.5s ease;
}