/* Основные переменные для тем */
:root {
  /* Light theme variables (default) */
  --bg-color: #f5f5f5;
  --card-bg: #ffffff;
  --text-color: #333333;
  --text-secondary: #666666;
  --primary-color: #0d9488;
  --primary-light: #e0f2f1;
  --primary-dark: #00796b;
  --border-color: #e0e0e0;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
  --input-bg: #f9f9f9;
  --log-bg: #f9f9f9;
  --log-border: #e0e0e0;
  --stats-bg: #f1f8e9;
  --warning-bg: #fff8e1;
  --warning-color: #f57f17;
  --error-bg: #ffebee;
  --error-color: #b71c1c;
  --secondary-btn-bg: #f5f5f5;
  --secondary-btn-color: #333333;
  --secondary-btn-border: #e0e0e0;
  --progress-bg: #e0e0e0;
}

/* Dark theme variables */
[data-theme="dark"] {
  --bg-color: #1a1a1a;
  --card-bg: #2d2d2d;
  --text-color: #e0e0e0;
  --text-secondary: #aaaaaa;
  --primary-color: #26a69a;
  --primary-light: #1e3532;
  --primary-dark: #64ffda;
  --border-color: #444444;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.2);
  --input-bg: #3d3d3d;
  --log-bg: #2a2a2a;
  --log-border: #444444;
  --stats-bg: #263238;
  --warning-bg: #3e2723;
  --warning-color: #ffb74d;
  --error-bg: #331111;
  --error-color: #ef5350;
  --secondary-btn-bg: #3d3d3d;
  --secondary-btn-color: #e0e0e0;
  --secondary-btn-border: #555555;
  --progress-bg: #444444;
}

/* Apply theme variables to elements */
body {
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

main {
  background-color: var(--card-bg);
  box-shadow: var(--shadow);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

header h1 {
  color: var(--primary-color);
  transition: color 0.3s ease;
}

header p {
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.screen h2 {
  color: var(--primary-color);
  transition: color 0.3s ease;
}

.form-group label {
  color: var(--text-color);
  transition: color 0.3s ease;
}

.form-group input {
  border-color: var(--border-color);
  background-color: var(--input-bg);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.form-group input:focus {
  border-color: var(--primary-color);
  background-color: var(--input-bg);
}

.form-help {
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.qr-container {
  border-color: var(--border-color);
  background-color: var(--input-bg);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.log-container {
  background-color: var(--log-bg);
  border-color: var(--log-border);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.log-entry {
  border-bottom-color: var(--border-color);
  transition: border-bottom-color 0.3s ease;
}

.log-time {
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.log-entry.log-error {
  background-color: var(--error-bg);
  color: var(--error-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.log-entry.log-warning {
  background-color: var(--warning-bg);
  color: var(--warning-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.stats-container {
  background-color: var(--stats-bg);
  transition: background-color 0.3s ease;
}

.stat-item {
  border-bottom-color: var(--border-color);
  transition: border-bottom-color 0.3s ease;
}

.stat-value {
  color: var(--primary-color);
  transition: color 0.3s ease;
}

.progress-bar {
  background-color: var(--progress-bg);
  transition: background-color 0.3s ease;
}

.secondary-button {
  background-color: var(--secondary-btn-bg);
  color: var(--secondary-btn-color);
  border-color: var(--secondary-btn-border);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.secondary-button:hover {
  background-color: var(--secondary-btn-bg);
  filter: brightness(1.1);
}

/* Theme toggle button */
.theme-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  border-radius: 25px;
  background-color: var(--primary-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  border: none;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.theme-toggle:hover {
  transform: scale(1.1);
}

.theme-toggle i {
  font-size: 24px;
  transition: transform 0.5s ease;
}

[data-theme="dark"] .theme-toggle .fa-moon {
  display: none;
}

[data-theme="dark"] .theme-toggle .fa-sun {
  display: inline-block;
}

.theme-toggle .fa-sun {
  display: none;
}

.theme-toggle .fa-moon {
  display: inline-block;
}

/* Enhanced styling for dark theme */
[data-theme="dark"] {
  /* Special effects for dark theme only */
  --glow-effect: 0 0 15px rgba(38, 166, 154, 0.5);
}

[data-theme="dark"] .primary-button {
  box-shadow: var(--glow-effect);
}

[data-theme="dark"] .primary-button:hover {
  box-shadow: 0 0 20px rgba(38, 166, 154, 0.8);
}

[data-theme="dark"] .qr-code canvas {
  border: 2px solid var(--primary-color);
  border-radius: 10px;
  padding: 10px;
  box-shadow: var(--glow-effect);
}

[data-theme="dark"] .download-button {
  box-shadow: var(--glow-effect);
}

[data-theme="dark"] .progress-fill {
  box-shadow: 0 0 10px var(--primary-color);
}

/* Dark mode footer */
[data-theme="dark"] footer {
  border-top: 1px solid var(--border-color);
  padding-top: 15px;
}

/* Styles for activity visualization */
.activity-visualization {
    margin: 30px 0;
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.activity-visualization h3 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
    transition: color 0.3s ease;
}

.chart-container {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    height: 300px;
    position: relative;
    transition: background-color 0.3s ease;
}

.secondary-charts {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: space-between;
}

.chart-container.half-width {
    flex: 1 1 calc(50% - 10px);
    min-width: 250px;
    height: 250px;
}

/* Dark theme enhancements for charts */
[data-theme="dark"] .activity-visualization {
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .chart-container {
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .chart-container canvas {
    filter: drop-shadow(0 0 3px rgba(38, 166, 154, 0.3));
}

/* Make the charts responsive */
@media (max-width: 768px) {
    .secondary-charts {
        flex-direction: column;
    }
    
    .chart-container.half-width {
        width: 100%;
    }
    
    .chart-container {
        height: 250px;
    }
}

/* Animation for chart appearance */
.chart-container {
    animation: chart-appear 0.8s ease-out;
}

@keyframes chart-appear {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stagger animation for multiple charts */
.chart-container:nth-child(1) {
    animation-delay: 0.1s;
}

.chart-container:nth-child(2) {
    animation-delay: 0.3s;
}

/* Theme transition event dispatcher */
#theme-toggle {
    transition: transform 0.3s ease, background-color 0.3s ease;
}

/* Исправления для темной темы */

/* Исправление видимости заголовка "Download Results" */
.download-section h3 {
    color: var(--text-color);
    transition: color 0.3s ease;
}

/* Исправление дополнительных заголовков в темной теме */
[data-theme="dark"] h3 {
    color: var(--text-color);
}

[data-theme="dark"] .activity-visualization h3 {
    color: var(--primary-color);
}

/* Улучшение контрастности и видимости элементов в темной теме */
[data-theme="dark"] .download-section {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 15px;
    margin-top: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Добавляем свечение для кнопок скачивания в темной теме */
[data-theme="dark"] .download-button {
    box-shadow: 0 0 10px rgba(38, 166, 154, 0.3);
    transition: all 0.3s ease;
}

[data-theme="dark"] .download-button:hover {
    box-shadow: 0 0 15px rgba(38, 166, 154, 0.5);
    transform: translateY(-2px);
}