@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');

:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --secondary-color: #6c757d;
    --secondary-hover: #5a6268;
    --background-color: #f8f9fa;
    --surface-color: #ffffff;
    --text-color: #343a40;
    --border-color: #dee2e6;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --light-gray: #f1f1f1;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 800px;
    background: var(--surface-color);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    overflow: hidden;
}

header {
    padding: 20px;
    background-color: var(--primary-color);
    color: white;
}

header h1 {
    margin: 0;
    text-align: center;
    font-weight: 700;
    padding-bottom: 15px;
}

.tabs {
    display: flex;
    justify-content: center;
    background-color: var(--primary-hover);
}

.tab-link {
    padding: 15px 30px;
    border: none;
    background: none;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s, color 0.3s;
    border-bottom: 3px solid transparent;
}

.tab-link:hover {
    background-color: rgba(255,255,255,0.1);
}

.tab-link.active {
    color: white;
    border-bottom: 3px solid white;
}

main {
    padding: 30px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

#recorder-ui, #preview-ui, #processing-ui {
    text-align: center;
}

#instructions, #recording-status p, #preview-ui p {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

#record-btn {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: none;
    background-color: var(--danger-color);
    color: white;
    font-size: 36px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
}

#record-btn.recording {
    background-color: var(--secondary-color);
    animation: pulse 1.5s infinite;
}

#record-btn:hover {
    transform: scale(1.05);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.7); }
    70% { box-shadow: 0 0 0 20px rgba(220, 53, 69, 0); }
    100% { box-shadow: 0 0 0 0 rgba(220, 53, 69, 0); }
}

#recording-status {
    margin-top: 20px;
}

#visualizer {
    background: var(--light-gray);
    border-radius: 4px;
    margin-top: 10px;
}

#preview-ui h2, #processing-ui h2 {
    margin-bottom: 10px;
}

#audio-preview {
    width: 100%;
    margin-top: 20px;
}

.button-group {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.primary-btn, .secondary-btn {
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
}
.primary-btn:hover {
    background-color: var(--primary-hover);
}

.secondary-btn {
    background-color: var(--secondary-color);
    color: white;
}
.secondary-btn:hover {
    background-color: var(--secondary-hover);
}

.progress-bar-container {
    width: 100%;
    background-color: var(--light-gray);
    border-radius: 5px;
    margin-top: 20px;
    position: relative;
    height: 30px;
}

#progress-bar {
    width: 0;
    height: 30px;
    background-color: var(--success-color);
    border-radius: 5px;
    transition: width 0.2s ease-in-out;
}

#progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-color);
    font-weight: 500;
}


/* --- Tasks Tab Styles --- */
#task-list-container {
    max-height: 500px;
    overflow-y: auto;
}

.task-group {
    margin-bottom: 25px;
}

.task-group h3 {
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 2px solid var(--border-color);
    color: var(--primary-color);
}

.task-item {
    display: flex;
    align-items: center;
    padding: 10px;
    border-radius: 5px;
    transition: background-color 0.2s;
    margin-bottom: 8px;
}

.task-item:hover {
    background-color: var(--light-gray);
}

.task-item.done {
    opacity: 0.7;
}

.task-item.done .task-content {
    text-decoration: line-through;
    color: var(--secondary-color);
}

.task-checkbox {
    margin-right: 15px;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.task-content {
    flex-grow: 1;
    cursor: text;
}

.task-content-input {
    flex-grow: 1;
    padding: 5px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
}

.delete-btn {
    background: none;
    border: none;
    color: var(--secondary-color);
    cursor: pointer;
    font-size: 18px;
    padding: 5px;
    opacity: 0;
    transition: opacity 0.2s, color 0.2s;
}

.task-item:hover .delete-btn {
    opacity: 1;
}

.delete-btn:hover {
    color: var(--danger-color);
}

.hidden {
    display: none !important;
}