/* Theme Variables */
:root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3d3d3d;
    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
    --accent-primary: #4CAF50;
    --accent-secondary: #45a049;
    --border-color: #444;
    --shadow-color: rgba(0,0,0,0.3);
    --transition-speed: 200ms;
}

[data-theme="light"] {
    --bg-primary: #f5f5f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #eaeaea;
    --text-primary: #333333;
    --text-secondary: #666666;
    --accent-primary: #43A047;
    --accent-secondary: #388E3C;
    --border-color: #ddd;
    --shadow-color: rgba(0,0,0,0.1);
}

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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* Layout */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 10px;
    display: grid;
    gap: 0.75rem;
    grid-template-areas: 
        "combined combined"
        "config config";
}

.combined-section { grid-area: combined; }
.mode-select-section { grid-area: mode-select; }
.actions-section { grid-area: actions; }
.config-section { grid-area: config; }

/* Components */
.section {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 1rem;
    box-shadow: 0 2px 4px var(--shadow-color);
    border: 1px solid var(--border-color);
}

.section-title {
    font-size: 1.1rem;
    color: var(--accent-primary);
    margin-bottom: 0.75rem;
}

.password-section {
    composes: section;
    grid-area: password;
    display: flex;
    flex-direction: column;
}

/* Form Elements */
button {
    cursor: pointer;
    border: none;
    outline: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    background-color: var(--accent-primary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: background-color var(--transition-speed) ease;
}

button:hover {
    background-color: var(--accent-secondary);
}

.icon-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

input[type="text"],
input[type="number"] {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 6px;
    border-radius: 4px;
}

input[type="checkbox"],
input[type="radio"] {
    accent-color: var(--accent-primary);
}

/* Range input styling */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    height: 8px;
}

/* Slider track */
input[type="range"]::-webkit-slider-runnable-track {
    background: var(--bg-secondary);
    height: 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

input[type="range"]::-moz-range-track {
    background: var(--bg-secondary);
    height: 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

/* Slider thumb */
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-primary);
    cursor: pointer;
    margin-top: -5px;
    border: none;
    transition: background-color var(--transition-speed) ease;
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-primary);
    cursor: pointer;
    border: none;
    transition: background-color var(--transition-speed) ease;
}

/* Hover and focus states */
input[type="range"]:hover::-webkit-slider-thumb,
input[type="range"]:focus::-webkit-slider-thumb {
    background: var(--accent-secondary);
}

input[type="range"]:hover::-moz-range-thumb,
input[type="range"]:focus::-moz-range-thumb {
    background: var(--accent-secondary);
}

/* Active state */
input[type="range"]:active::-webkit-slider-thumb {
    transform: scale(1.1);
}

input[type="range"]:active::-moz-range-thumb {
    transform: scale(1.1);
}

/* Controls */
.controls-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Strength Indicators */
.strength-bar-container {
    margin: 0.5rem 0;
    padding: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
}

/* Header */
.app-header {
    padding: 1rem 0.75rem;
    margin-bottom: 0.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
}

.app-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 0.25rem;
    letter-spacing: -0.5px;
}

.app-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Media Queries */
@media (min-width: 1024px) {
    .container {
        grid-template-columns: 1fr;
        grid-template-areas: 
            "combined"
            "config";
        align-items: start;
    }

    .password-section {
        position: sticky;
        top: 1rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 5px;
        gap: 0.5rem;
    }
    
    .section {
        padding: 0.75rem;
    }
}

/* Add password container styles */
.password-container {
    margin-bottom: 1rem;
}

.password-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.password-actions {
    display: flex;
    gap: 0.5rem;
}

#password {
    font-family: monospace;
    font-size: 1.2rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 4px;
    word-break: break-all;
    min-height: 3rem;
    cursor: pointer;
}

/* Character type colors */
.char-upper { color: var(--accent-primary); }
.char-lower { color: var(--text-primary); }
.char-number { color: #ff9800; }
.char-symbol { color: #e91e63; }

/* Strength bar styles */
.strength-bar {
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    margin-top: 0.5rem;
}

#strengthProgress {
    height: 100%;
    width: 0;
    border-radius: 2px;
    transition: width 0.3s ease, background-color 0.3s ease;
}

.strength-text {
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.strength-details {
    display: flex;
    gap: 0.5rem;
}

.separator {
    color: var(--border-color);
}

/* Mode buttons */
.mode-buttons {
    display: flex;
    gap: 0.5rem;
    margin: 1rem 0;
}

.mode-button {
    flex: 1;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
}

.mode-button.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

/* Form group styles */
.options-group {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 4px;
}

.options-group h3 {
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.options-group h4 {
    color: var(--text-secondary);
    margin: 0.5rem 0;
    font-size: 0.9rem;
}

/* Length controls */
.length-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.length-controls input[type="range"] {
    flex: 1;
}

.length-controls input[type="number"] {
    width: 70px;
}

/* Theme switch */
.theme-switch {
    background: transparent;
    color: var(--text-primary);
    padding: 0.5rem;
}

.theme-switch:hover {
    background: var(--bg-tertiary);
}

/* Visitor badge */
.visitor-badge {
    margin: 2rem 0;
}