/* Import Google Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS Variables for consistent theming */
:root {
    /* Dark Theme Defaults */
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-tertiary: #1a1a1d;
    --text-primary: #f8fafc; /* White */
    --text-secondary: #cbd5e1; /* Light Gray */
    --text-muted: #64748b; /* Slate Gray */
    --border: #334155; /* Darker Slate */
    --glass: rgba(255, 255, 255, 0.05); /* Subtle transparency */
    /* Accent Colors (Default: Indigo/Violet) */
    --accent-primary: #6366f1; /* Indigo */
    --accent-secondary: #8b5cf6; /* Violet */
    --accent-gradient: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    /* Background Gradient Colors (derived from accent, with opacity) */
    --bg-gradient-color1: rgba(99, 102, 241, 0.1);
    --bg-gradient-color2: rgba(139, 92, 246, 0.1);
    /* Shadows and Glows */
    --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --glow: 0 0 30px rgba(99, 102, 241, 0.3); /* Default glow color */
    --error-color: #ef4444; /* Red for errors/delete */
    --success-color: #10b981; /* Green for success */
}
/* Light Mode Variables */
body.light-mode {
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e2e8f0;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --border: #cbd5e1;
    --glass: rgba(0, 0, 0, 0.05); /* Subtle transparency for light mode */
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    /* Background Gradient Colors for Light Mode (subtler) */
    --bg-gradient-color1: rgba(0, 0, 0, 0.02);
    --bg-gradient-color2: rgba(0, 0, 0, 0.02);
}
/* Accent Color Overrides */
body[data-accent="blue"] {
    --accent-primary: #3b82f6; /* Blue */
    --accent-secondary: #2563eb; /* Darker Blue */
    --bg-gradient-color1: rgba(59, 130, 246, 0.1);
    --bg-gradient-color2: rgba(37, 99, 235, 0.1);
}
body[data-accent="green"] {
    --accent-primary: #10b981; /* Green */
    --accent-secondary: #059669; /* Darker Green */
    --bg-gradient-color1: rgba(16, 185, 129, 0.1);
    --bg-gradient-color2: rgba(5, 150, 105, 0.1);
}
body[data-accent="orange"] {
    --accent-primary: #f97316; /* Orange */
    --accent-secondary: #ea580c; /* Darker Orange */
    --bg-gradient-color1: rgba(249, 115, 22, 0.1);
    --bg-gradient-color2: rgba(234, 88, 12, 0.1);
}
body[data-accent="purple"] {
    --accent-primary: #a855f7; /* Purple */
    --accent-secondary: #9333ea; /* Darker Purple */
    --bg-gradient-color1: rgba(168, 85, 247, 0.1);
    --bg-gradient-color2: rgba(147, 51, 234, 0.1);
}
/* Reset basic styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
/* Body styling */
body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden; /* Prevent horizontal scroll */
    min-height: 100vh;
    position: relative;
    transition: background-color 0.3s ease, color 0.3s ease; /* Smooth theme transitions */
}
/* Animated background effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--bg-gradient-color1) 0%, var(--bg-gradient-color2) 100%);
    background-size: 400% 400%; /* Larger for animation */
    animation: linearBackgroundMove 30s ease-in-out infinite alternate; /* Smooth, continuous movement */
    pointer-events: none; /* Allow clicks to pass through */
    z-index: -1; /* Place behind content */
}
@keyframes linearBackgroundMove {
    0% { background-position: 0% 0%; }
    100% { background-position: 100% 100%; }
}
/* Main content container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}
/* Header section styling */
.header {
    text-align: center;
    margin-bottom: 3rem;
}
.header h1 {
    font-size: clamp(2rem, 4vw, 3rem); /* Responsive font size */
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    letter-spacing: -0.025em;
}
.header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
}
/* Stats section styling */
.stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap; /* Allow wrapping on small screens */
}
.stat-card {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}
.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}
.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}
/* Main navigation for sections */
.main-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}
.main-nav button {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}
.main-nav button:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}
.main-nav button.active {
    background: var(--accent-gradient);
    color: white;
    border-color: var(--accent-primary);
    box-shadow: var(--glow);
}
/* Content sections (links and tools) */
.content-section {
    display: none; /* Hidden by default */
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.content-section.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}
/* Search bar styling */
.search-bar {
    position: relative;
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}
.search-bar input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem; /* Left padding for icon */
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}
.search-bar input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}
.search-bar::before {
    content: '🔍'; /* Search icon */
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.5;
}
/* Site grid layout */
.site-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}
/* Individual site card styling */
.site-card {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transform: translateY(0); /* Ensure no initial transform */
    opacity: 1; /* Ensure no initial opacity */
    animation: fadeIn 0.5s ease-out; /* Fade in animation */
    cursor: grab;
}
.site-card:dragging {
    opacity: 0.7;
    cursor: grabbing;
}
/* Keyframe for fade in animation */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.site-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}
.site-card:hover::before {
    opacity: 0.05;
}
.site-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
    border-color: var(--accent-primary);
}
.site-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}
.site-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    object-fit: cover;
    border: 2px solid var(--border);
    transition: all 0.3s ease;
    flex-shrink: 0;
}
.site-card:hover .site-logo {
    border-color: var(--accent-primary);
    box-shadow: var(--glow);
}
.site-info {
    flex-grow: 1;
    min-width: 0; /* Allow text ellipsis to work */
}
.site-info h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.site-info .site-url {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: 'SF Mono', 'Monaco', monospace;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}
.site-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    flex-grow: 1;
}
.site-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}
.tag {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--border);
}
/* Add button (Floating Action Button) */
.add-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.add-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--glow);
}
/* Modal overlay */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    justify-content: center;
    align-items: center;
    z-index: 2000;
    padding: 1rem;
    opacity: 0; /* Initial state for fade-in */
    transition: opacity 0.3s ease;
}
.modal.show {
    display: flex;
    opacity: 1;
}
/* Modal content box */
.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2rem;
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow);
    transform: translateY(-20px); /* Initial state for slide-in */
    opacity: 0; /* Initial state for fade-in */
    transition: all 0.3s ease-out;
}
.modal.show .modal-content {
    transform: translateY(0);
    opacity: 1;
}
.modal-content h2 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-weight: 600;
}
.form-group {
    margin-bottom: 1.5rem;
    position: relative; /* For loading indicator */
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}
.form-group textarea {
    resize: vertical;
    min-height: 80px;
}
/* Tag input container for interactive tags */
.tag-input-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.6rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    min-height: 44px;
    align-items: center;
}
.tag-input-container:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}
.tag-input-container input {
    flex-grow: 1;
    border: none;
    background: transparent;
    padding: 0;
    margin: 0;
    min-width: 80px;
}
.tag-input-container input:focus {
    outline: none;
    box-shadow: none;
}
.modal-tag {
    background: var(--accent-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}
.modal-tag .remove-tag-btn {
    background: none;
    border: none;
    color: white;
    font-size: 0.9rem;
    cursor: pointer;
    margin-left: 0.25rem;
    line-height: 1;
    opacity: 0.8;
    transition: opacity 0.2s ease;
}
.modal-tag .remove-tag-btn:hover {
    opacity: 1;
}
/* Modal action buttons */
.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}
.btn-primary {
    background: var(--accent-gradient);
    color: white;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow);
}
.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.btn-secondary:hover {
    background: var(--border);
}
/* Actions within site cards (Edit/Delete) */
.site-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    margin-top: 1rem;
    z-index: 1;
}
.site-actions button {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
}
.site-actions button:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}
.site-actions button.delete-btn:hover {
    background: var(--error-color);
    border-color: var(--error-color);
}
/* Empty state message */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
    grid-column: 1 / -1;
}
.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}
/* Loading indicator for AI description generation */
.loading-spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--accent-primary);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    display: none; /* Hidden by default */
}
.loading-spinner.active {
    display: block;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
/* Message box for alerts/confirmations */
.message-box-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    justify-content: center;
    align-items: center;
    z-index: 3000;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.message-box-overlay.show {
    display: flex;
    opacity: 1;
}
.message-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    width: 90%;
    max-width: 400px;
    box-shadow: var(--shadow);
    text-align: center;
    transform: translateY(-20px);
    opacity: 0;
    transition: all 0.3s ease-out;
}
.message-box-overlay.show .message-box {
    transform: translateY(0);
    opacity: 1;
}
.message-box h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}
.message-box p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}
.message-box-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}
/* --- Burger Menu Styles --- */
.burger-menu-toggle {
    position: fixed;
    top: 1.5rem;
    right: 2rem;
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    z-index: 2500; /* Above modal, below message box */
    transition: background 0.3s ease, border-color 0.3s ease;
}
.burger-menu-toggle:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
}
.burger-line {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}
.burger-menu-toggle.open .burger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.burger-menu-toggle.open .burger-line:nth-child(2) {
    opacity: 0;
}
.burger-menu-toggle.open .burger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}
.side-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 100%;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
    transform: translateX(100%);
    transition: transform 0.3s ease-out;
    z-index: 2400;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto; /* Enable scrolling for long content */
}
.side-menu.open {
    transform: translateX(0);
}
.side-menu h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}
.side-menu .section-group {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem;
}
.side-menu .section-group label {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-weight: 500;
}
.theme-toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}
.theme-toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border);
    transition: 0.4s;
    border-radius: 34px;
}
.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}
input:checked + .slider {
    background-color: var(--accent-primary);
}
input:focus + .slider {
    box-shadow: 0 0 1px var(--accent-primary);
}
input:checked + .slider:before {
    transform: translateX(26px);
}
.color-swatches {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.color-swatch {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.2s ease, transform 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em; /* Checkmark size */
    color: white; /* Checkmark color */
}
.color-swatch:hover {
    transform: scale(1.1);
}
.color-swatch.selected {
    border-color: var(--text-primary); /* Highlight selected swatch */
    box-shadow: 0 0 0 2px var(--accent-primary); /* Outer glow for selected */
}
/* Specific swatch colors */
.color-swatch[data-color="indigo"] { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.color-swatch[data-color="blue"] { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.color-swatch[data-color="green"] { background: linear-gradient(135deg, #10b981, #059669); }
.color-swatch[data-color="orange"] { background: linear-gradient(135deg, #f97316, #ea580c); }
.color-swatch[data-color="purple"] { background: linear-gradient(135deg, #a855f7, #9333ea); }
/* --- Pomodoro Timer Styles --- */
.pomodoro-section {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 3rem;
    text-align: center;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    position: relative; /* For settings icon positioning */
}
.pomodoro-section:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--accent-primary);
}
.pomodoro-section h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}
.timer-display {
    font-family: 'Inter', monospace; /* Monospace for consistent digits */
    font-size: 4rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
    text-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}
.timer-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem; /* Space before settings */
}
.timer-controls button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.timer-controls button:hover {
    background: var(--accent-primary);
    color: white;
    box-shadow: var(--glow);
}
.timer-controls button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
    background: var(--bg-tertiary);
    color: var(--text-muted);
}
/* Pomodoro Settings Toggle Button */
.pomodoro-settings-toggle {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: background 0.2s ease;
}
.pomodoro-settings-toggle:hover {
    background: var(--bg-tertiary);
}
.pomodoro-settings-toggle svg {
    width: 24px;
    height: 24px;
    fill: var(--text-secondary);
    transition: fill 0.2s ease, transform 0.3s ease;
}
.pomodoro-settings-toggle:hover svg {
    fill: var(--text-primary);
}
.pomodoro-settings-toggle.open svg {
    transform: rotate(90deg); /* Rotate when open */
}
/* Pomodoro Settings Panel */
.pomodoro-settings-panel {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-10px);
    transition: max-height 0.3s ease-out, opacity 0.3s ease-out, transform 0.3s ease-out;
    padding-top: 0;
}
.pomodoro-settings-panel.open {
    max-height: 200px; /* Adjust based on content height */
    opacity: 1;
    transform: translateY(0);
    padding-top: 1rem;
}
.pomodoro-settings-inputs .form-group {
    margin-bottom: 0.75rem; /* Closer spacing */
}
.pomodoro-settings-inputs input[type="number"] {
    width: 80px; /* Fixed width for number inputs */
    display: inline-block;
    padding: 0.5rem 0.75rem;
    text-align: center;
    margin-left: 0.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all 0.2s ease;
}
.pomodoro-settings-inputs input[type="number"]:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}
.pomodoro-settings-inputs label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
}
/* Responsive adjustments */
@media (max-width: 768px) {
    .stats {
        gap: 1rem;
    }
    .site-grid {
        grid-template-columns: 1fr;
    }
    .add-btn {
        bottom: 1rem;
        right: 1rem;
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    .modal-content {
        padding: 1.5rem;
    }
    .modal-actions {
        flex-direction: column-reverse; /* Stack buttons on small screens */
    }
    .btn {
        width: 100%;
    }
    .burger-menu-toggle {
        top: 1rem;
        right: 1rem;
        width: 36px;
        height: 36px;
        gap: 5px;
    }
    .burger-line {
        width: 20px;
    }
    .burger-menu-toggle.open .burger-line:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .burger-menu-toggle.open .burger-line:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    .side-menu {
        width: 250px; /* Smaller menu on small screens */
    }
    .pomodoro-section {
        padding: 1.5rem;
    }
    .timer-display {
        font-size: 3rem; /* Smaller timer display */
    }

}