:root {
    --bg: #fafafa;
    --fg: #1a1a1a;
    --muted: #666;
    --border: #e0e0e0;
    --card-bg: #fff;
    --accent: #0055aa;
    --accent-hover: #003d7a;
    --tag-bg: #eef3f8;
    --tag-fg: #0055aa;
    --success: #2a7d3f;
    --danger: #c0392b;
    --max-width: 900px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #121212;
        --fg: #e0e0e0;
        --muted: #999;
        --border: #333;
        --card-bg: #1e1e1e;
        --accent: #5b9bd5;
        --accent-hover: #7ab8e8;
        --tag-bg: #1a2a3a;
        --tag-fg: #5b9bd5;
        --success: #4caf50;
        --danger: #e57373;
    }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.6;
}

header {
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    position: sticky;
    top: 0;
    background: var(--bg);
    z-index: 10;
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--fg);
}

.edition {
    color: var(--muted);
    font-size: 0.9rem;
}

.auth-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.btn-auth {
    background: none;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--accent);
    transition: all 0.15s;
}

.btn-auth:hover {
    border-color: var(--accent);
    background: var(--accent);
    color: #fff;
}

#login-dialog {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.login-box {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    width: 320px;
    max-width: 90vw;
}

.login-box h3 {
    margin-bottom: 1rem;
}

.login-box input[type="password"] {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.9rem;
    background: var(--bg);
    color: var(--fg);
    margin-bottom: 0.75rem;
}

.login-actions {
    display: flex;
    gap: 0.5rem;
}

#add-source-form {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 2rem;
}

#add-source-form h2 {
    margin-bottom: 0.75rem;
}

.add-source-fields {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.add-source-fields input {
    flex: 1;
    min-width: 150px;
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.85rem;
    background: var(--bg);
    color: var(--fg);
}

nav {
    max-width: var(--max-width);
    margin: 0.5rem auto 0;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

nav a {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
}

nav a:hover { text-decoration: underline; }

.weekly-link {
    margin-left: auto;
    font-weight: 600 !important;
}

main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem;
}

section {
    margin-bottom: 2.5rem;
}

section h2 {
    font-size: 1.2rem;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.3rem;
    margin-bottom: 1rem;
}

.story-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: border-color 0.2s;
}

.story-card:hover {
    border-color: var(--accent);
}

.story-card h3 {
    font-size: 1rem;
    margin-bottom: 0.4rem;
}

.story-card h3 a {
    color: var(--fg);
    text-decoration: none;
}

.story-card h3 a:hover {
    color: var(--accent);
}

.summary {
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--muted);
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 0.5rem;
}

.original {
    color: var(--accent);
    text-decoration: none;
}

.tags {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.tag {
    background: var(--tag-bg);
    color: var(--tag-fg);
    font-size: 0.75rem;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
}

.actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-action {
    background: none;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.3rem 0.7rem;
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--fg);
    transition: all 0.15s;
}

.btn-action:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-action.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

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

/* Story detail page */
.story-detail {
    max-width: 700px;
}

.story-detail h1 {
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.category-badge {
    background: var(--accent);
    color: #fff;
    padding: 0.1rem 0.5rem;
    border-radius: 3px;
    font-size: 0.75rem;
}

.full-summary {
    margin: 1.5rem 0;
    font-size: 1rem;
    line-height: 1.7;
}

.read-original {
    display: inline-block;
    margin-top: 1rem;
    color: var(--accent);
    font-weight: 500;
    text-decoration: none;
}

.read-original:hover { text-decoration: underline; }

.back-link {
    display: inline-block;
    margin-top: 1rem;
    margin-left: 1.5rem;
    color: var(--muted);
    text-decoration: none;
}

.back-link:hover { color: var(--accent); }

/* Weekly digest */
.weekly-digest .narrative {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.week-label {
    color: var(--muted);
    margin-bottom: 1.5rem;
}

footer {
    max-width: var(--max-width);
    margin: 2rem auto;
    padding: 1rem;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--muted);
    font-size: 0.8rem;
}

footer a { color: var(--accent); text-decoration: none; }

@media (max-width: 600px) {
    .header-inner { flex-direction: column; gap: 0.3rem; }
    nav { gap: 0.6rem; }
    .story-card { padding: 0.8rem; }
    .actions { gap: 0.3rem; }
    .btn-action { padding: 0.25rem 0.5rem; font-size: 0.75rem; }
    .add-source-fields { flex-direction: column; }
}