:root {
    --primary-teal: #006064;
    --secondary-teal: #00838f;
    --light-teal: #4fb3bf;
    --metallic-silver: #b0bec5;
    --metallic-gold: #ffd700;
    --metallic-bronze: #cd7f32;
    --dark-bg: #263238;
    --light-bg: #f5f5f5;
    --text-primary: #212121;
    --text-secondary: #757575;
    --border-color: #e0e0e0;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 16px rgba(0,0,0,0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.header {
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--secondary-teal) 100%);
    color: white;
    padding: 1rem;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

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

.radio-button {
    background: rgba(255,255,255,0.2);
    border: 2px solid rgba(255,255,255,0.3);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.radio-button:hover {
    background: rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
}

.radio-button.playing {
    background: var(--metallic-gold);
    color: var(--dark-bg);
    border-color: var(--metallic-gold);
}

.radio-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.main-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem;
}

.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.reset-button {
    background: var(--metallic-silver);
    color: var(--dark-bg);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.reset-button:hover {
    background: var(--metallic-bronze);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.loading {
    display: none;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--light-teal);
    border-top-color: var(--primary-teal);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner.small {
    width: 16px;
    height: 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.news-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.news-article {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

.news-article:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.news-article.expanded {
    box-shadow: var(--shadow-hover);
}

.article-header {
    padding: 1rem 1rem 0;
}

.article-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.article-title {
    font-size: 1.1rem;
    line-height: 1.3;
    color: var(--primary-teal);
}

.article-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.article-content {
    padding: 0 1rem 1rem;
}

.article-body-wrapper {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.article-image-wrapper {
    flex-shrink: 0;
}

.article-image {
    width: 120px;
    height: 90px;
    object-fit: cover;
    border-radius: 8px;
    display: block;
}

.article-text-content {
    flex: 1;
    min-width: 0;
}

.article-summary {
    color: var(--text-primary);
    line-height: 1.5;
    margin: 0;
}

.article-full {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.loading-full {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 2rem;
    color: var(--text-secondary);
}

.full-article-content {
    line-height: 1.7;
}

.full-article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1rem 0;
}

.full-article-content p {
    margin-bottom: 1rem;
}

.full-article-content h2, 
.full-article-content h3 {
    margin: 1.5rem 0 1rem;
    color: var(--primary-teal);
}

.expand-button {
    background: linear-gradient(135deg, var(--light-teal) 0%, var(--secondary-teal) 100%);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.expand-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.expand-icon {
    transition: transform 0.3s ease;
}

.no-news, .error {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.error {
    color: #d32f2f;
}

.article-fallback {
    padding: 1.5rem;
    background: var(--light-bg);
    border-radius: 8px;
    text-align: center;
}

.fallback-message {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.read-on-err {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--primary-teal);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.read-on-err:hover {
    background: var(--secondary-teal);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.rss-fallback {
    padding: 0;
}

.rss-content {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.rss-content p {
    margin-bottom: 1rem;
}

.article-footer {
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.rss-notice {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}