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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    min-height: 100vh;
    color: #e0e0e0;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
}

/* Header Styles */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 0;
}

.app-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.app-title i {
    font-size: 2rem;
    color: #00d4ff;
    text-shadow: 0 0 15px rgba(0, 212, 255, 0.5);
}

.app-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
}

/* Main Content */
.main-content {
    background: linear-gradient(135deg, #1e1e2e 0%, #2d2d44 100%);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.1);
    overflow: hidden;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

/* Voice Section */
.voice-section {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 50%, #2c3e50 100%);
    padding: 30px;
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.voice-controls {
    text-align: center;
    margin-bottom: 30px;
}

.voice-btn {
    background: rgba(0, 212, 255, 0.1);
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-radius: 50px;
    padding: 20px 40px;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 0 auto 20px;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.voice-btn:hover {
    background: rgba(0, 212, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
}

.voice-btn.listening {
    background: #00d4ff;
    border-color: #00d4ff;
    animation: pulse 1.5s infinite;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.6);
}

.voice-btn i {
    font-size: 1.3rem;
}

.voice-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.status-text {
    font-weight: 500;
    font-size: 1rem;
}

.voice-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #4CAF50;
    animation: blink 2s infinite;
}

.voice-indicator.listening {
    background: #00d4ff;
    animation: pulse 1s infinite;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.6);
}

.connection-status {
    margin-top: 15px;
    text-align: center;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 0.85rem;
    color: #ffc107;
    font-weight: 500;
}

.status-badge.https {
    background: rgba(76, 175, 80, 0.1);
    border-color: rgba(76, 175, 80, 0.3);
    color: #4CAF50;
}

.status-badge.error {
    background: rgba(244, 67, 54, 0.1);
    border-color: rgba(244, 67, 54, 0.3);
    color: #f44336;
}

.voice-commands {
    background: rgba(0, 212, 255, 0.05);
    border-radius: 15px;
    padding: 25px;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.voice-commands h3 {
    margin-bottom: 20px;
    font-size: 1.2rem;
    font-weight: 600;
}

.commands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.command-item {
    background: rgba(0, 212, 255, 0.1);
    padding: 15px;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.voice-settings {
    background: rgba(0, 212, 255, 0.05);
    border-radius: 15px;
    padding: 25px;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 212, 255, 0.1);
    margin-top: 20px;
}

.voice-settings h3 {
    margin-bottom: 20px;
    font-size: 1.2rem;
    font-weight: 600;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.setting-item label {
    font-weight: 600;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.9);
}

.setting-item input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    -webkit-appearance: none;
}

.setting-item input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #00d4ff;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.setting-item input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #00d4ff;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.setting-value {
    font-size: 0.85rem;
    color: #00d4ff;
    font-weight: 600;
    text-align: center;
}

.command {
    font-weight: 600;
    font-size: 0.9rem;
}

.description {
    font-size: 0.85rem;
    opacity: 0.9;
}

/* Input Section */
.input-section {
    padding: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.input-container {
    display: flex;
    gap: 15px;
    max-width: 600px;
    margin: 0 auto;
}

.todo-input {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.05);
    color: #e0e0e0;
}

.todo-input:focus {
    outline: none;
    border-color: #00d4ff;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.2);
    color: #ffffff;
}

.add-btn {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    border: none;
    border-radius: 12px;
    padding: 15px 20px;
    color: white;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 50px;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.add-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.5);
}

/* Todo Section */
.todo-section {
    padding: 30px;
}

.todo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.todo-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
}

.todo-stats {
    font-size: 0.9rem;
    color: #b0b0b0;
    display: flex;
    gap: 15px;
}

.todo-stats span {
    font-weight: 600;
    color: #00d4ff;
}

.todo-filters {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    justify-content: center;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    padding: 8px 20px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #b0b0b0;
}

.filter-btn:hover {
    border-color: #00d4ff;
    color: #00d4ff;
}

.filter-btn.active {
    background: #00d4ff;
    border-color: #00d4ff;
    color: white;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.todo-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.todo-item {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
    animation: slideIn 0.3s ease;
}

.todo-item:hover {
    border-color: #00d4ff;
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

.todo-item.completed {
    background: rgba(76, 175, 80, 0.1);
    border-color: #4CAF50;
    opacity: 0.7;
}

.todo-checkbox {
    width: 24px;
    height: 24px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
}

.todo-checkbox.checked {
    background: #4CAF50;
    border-color: #4CAF50;
}

.todo-checkbox i {
    color: white;
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.todo-checkbox.checked i {
    opacity: 1;
}

.todo-text {
    flex: 1;
    font-size: 1rem;
    color: #e0e0e0;
    word-break: break-word;
}

.todo-item.completed .todo-text {
    text-decoration: line-through;
    color: #888;
}

.todo-actions {
    display: flex;
    gap: 10px;
}

.todo-btn {
    background: none;
    border: none;
    padding: 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #b0b0b0;
}

.todo-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.todo-btn.delete:hover {
    background: #ffebee;
    color: #f44336;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #888;
}

.empty-state i {
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.3);
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #ffffff;
}

.empty-state p {
    font-size: 1rem;
    color: #888;
}

/* Notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #1e1e2e 0%, #2d2d44 100%);
    border-radius: 12px;
    padding: 15px 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 1000;
    max-width: 300px;
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    border-left: 4px solid #4CAF50;
}

.notification.error {
    border-left: 4px solid #f44336;
}

.notification.info {
    border-left: 4px solid #2196F3;
}

.notification-icon {
    font-size: 1.2rem;
}

.notification.success .notification-icon::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: #4CAF50;
}

.notification.error .notification-icon::before {
    content: '\f071';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: #f44336;
}

.notification.info .notification-icon::before {
    content: '\f05a';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: #2196F3;
}

.notification-text {
    font-size: 0.9rem;
    color: #e0e0e0;
}

/* Animations */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .app-title {
        font-size: 2rem;
    }
    
    .voice-section {
        padding: 20px;
    }
    
    .voice-btn {
        padding: 15px 30px;
        font-size: 1rem;
    }
    
    .commands-grid {
        grid-template-columns: 1fr;
    }
    
    .input-section,
    .todo-section {
        padding: 20px;
    }
    
    .todo-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .todo-filters {
        flex-wrap: wrap;
    }
    
    .notification {
        right: 15px;
        left: 15px;
        max-width: none;
    }
}

@media (max-width: 480px) {
    .app-title {
        font-size: 1.8rem;
        flex-direction: column;
        gap: 10px;
    }
    
    .voice-btn {
        flex-direction: column;
        gap: 10px;
    }
    
    .input-container {
        flex-direction: column;
    }
    
    .add-btn {
        width: 100%;
    }
}