/* Global Variables */
:root {
    /* Light theme variables */
    --sidebar-width: 250px;
    --sidebar-width-collapsed: 0px;
    --primary-blue: #7b9ed9;
    --secondary-blue: #b8d1f6;
    --background: #ffffff;
    --text-color: #333333;
    --button-bg: #7b9ed9;
    --button-hover: #6b8ec9;
    --toggle-bg: rgba(255, 255, 255, 0.9);
    --toggle-color: #333333;
    --toggle-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    --border-color: rgba(0, 0, 0, 0.1);
    --card-bg: #ffffff;
    --input-bg: #f5f5f5;
    --input-text: #333333;
    --text-secondary: #666666;
    /* Base font sizes */
    --base-font-size-small: 14px;
    --base-font-size-medium: 18px;
    --base-font-size-large: 20px;
}

/* Dark theme variables */
.dark-theme {
    --background: #1a1a1a;
    --text-color: #ffffff;
    --button-bg: #333333;
    --button-hover: #444444;
    --toggle-bg: rgba(45, 45, 45, 0.9);
    --toggle-color: #ffffff;
    --toggle-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --border-color: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(255, 255, 255, 0.1);
    --input-bg: rgba(255, 255, 255, 0.15);
    --input-text: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
}

/* Font size utility classes */
:root[data-font-size="small"] {
    font-size: var(--base-font-size-small);
}

:root[data-font-size="medium"] {
    font-size: var(--base-font-size-medium);
}

:root[data-font-size="large"] {
    font-size: var(--base-font-size-large);
}

/* Scale other elements relative to base font size */
h1 { font-size: 2em; }
h2 { font-size: 1.5em; }
h3 { font-size: 1.25em; }
h4 { font-size: 1.1em; }
p, button, input, select { font-size: 1em; }

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--background);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Layout Components */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar-container {
    position: relative;
    height: 100%;
}

.content-wrapper {
    margin-left: calc(var(--sidebar-width) - 15px);
    max-width: calc(100vw - var(--sidebar-width));
    width: 100%;
    min-height: 100vh;
    transition: margin-left 0.3s ease, max-width 0.3s ease;
    padding: 20px;
    position: relative;
}

.content-wrapper.sidebar-closed {
    margin-left: var(--sidebar-width-collapsed);
    max-width: calc(100vw - var(--sidebar-width-collapsed));
}

.main-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 10px;
}

.theme-toggle button {
    background-color: var(--toggle-bg);
    color: var(--toggle-color);
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: var(--toggle-shadow);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

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

.theme-toggle button i {
    font-size: 1.2rem;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1000;
    background-color: var(--toggle-bg);
    color: var(--toggle-color);
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--toggle-shadow);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.mobile-menu-toggle i {
    font-size: 1.2rem;
}

@media screen and (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .content-wrapper {
        margin-left: 0;
        max-width: 100vw;
    }
}

@media screen and (max-width: 320px) {
    .theme-toggle button,
    .mobile-menu-toggle {
        width: 40px;
        height: 40px;
    }
}

/* Safe Area Insets */
@supports (padding: max(0px)) {
    .main-content {
        padding-left: max(20px, env(safe-area-inset-left));
        padding-right: max(20px, env(safe-area-inset-right));
    }
}

/* Settings styles */
.settings-button {
    background-color: var(--toggle-bg) !important;
    color: var(--toggle-color) !important;
    width: 44px !important;
    height: 44px !important;
    margin-right: 0 !important;
}

.settings-button:hover {
    transform: scale(1.1) !important;
}

.settings-button i {
    transition: transform 0.3s ease;
}

.settings-button:hover i {
    transform: rotate(30deg);
}

.settings-panel {
    position: fixed;
    top: 60px;
    right: 20px;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    width: 300px;
    z-index: 1000;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s, transform 0.3s;
}

.settings-panel.hidden {
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
}

.settings-content {
    padding: 16px;
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.settings-header h3 {
    margin: 0;
    color: var(--text-color);
}

.close-settings {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 4px;
    opacity: 0.7;
}

.close-settings:hover {
    opacity: 1;
}

.settings-section {
    margin-bottom: 20px;
}

.settings-section h4 {
    margin: 0 0 8px;
    color: var(--text-color);
}

#languageSelect {
    width: 100%;
    padding: 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--input-bg);
    color: var(--input-text);
}

.font-size-controls {
    display: flex;
    gap: 8px;
}

.font-size-btn {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--input-bg);
    color: var(--input-text);
    cursor: pointer;
    transition: background-color 0.2s;
}

.font-size-btn:hover {
    background: var(--button-hover);
    color: white;
}

.font-size-btn.active {
    background: var(--button-bg);
    color: white;
}