* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: #2c3e50;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

nav {
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

nav a:hover {
    background-color: rgba(255,255,255,0.1);
}

main {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

footer {
    background-color: #34495e;
    color: white;
    text-align: center;
    padding: 1rem 0;
    margin-top: 3rem;
}

/* Upload Form */
.upload-form {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: 0 auto;
}

.upload-form h2 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #555;
}

.form-group input[type="text"],
.form-group input[type="file"],
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
    font-family: inherit;
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: #666;
    font-size: 0.875rem;
}

.btn-primary {
    background-color: #007bff;
    color: white;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: #0056b3;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    border: 1px solid #f5c6cb;
}

/* Speakers List */
.speakers-list {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.speakers-list h2 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.speakers-table {
    width: 100%;
    border-collapse: collapse;
}

.speakers-table thead {
    background-color: #f8f9fa;
}

.speakers-table th,
.speakers-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

.speakers-table th {
    font-weight: 600;
    color: #495057;
}

.speakers-table tbody tr:hover {
    background-color: #f8f9fa;
}

.btn-link {
    color: #007bff;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.btn-link:hover {
    background-color: #e7f3ff;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: #666;
}

/* Speaker Detail */
.speaker-detail {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.speaker-detail h2 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.speaker-detail h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #34495e;
}

.notes {
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    border-left: 4px solid #007bff;
}

.meta-info {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #dee2e6;
}

.meta-info p {
    margin-bottom: 0.5rem;
    color: #666;
}

/* Samples */
.samples-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sample-card {
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 1.5rem;
    background-color: #f8f9fa;
}

.sample-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.sample-header h4 {
    color: #2c3e50;
}

.sample-date {
    color: #666;
    font-size: 0.875rem;
}

.sample-duration {
    color: #666;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.audio-player {
    margin-bottom: 1rem;
}

.audio-player audio {
    width: 100%;
}

.public-url {
    margin-top: 1rem;
}

.public-url label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #555;
    font-size: 0.875rem;
}

.url-input-group {
    display: flex;
    gap: 0.5rem;
}

.url-input {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.875rem;
    font-family: monospace;
    background-color: white;
}

.btn-copy {
    background-color: #007bff;
    color: white;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-copy:hover {
    background-color: #0056b3;
}