:root {
    --bg: #0d0d0d;
    --surface: #151515;
    --surface-2: #1f1f1f;
    --text: #e8e8e8;
    --text-muted: #888;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --success: #22c55e;
    --warning: #f59e0b;
    --border: #2a2a2a;
    --radius: 10px;
    --shadow: 0 4px 20px rgba(0,0,0,0.35);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

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

a:hover {
    text-decoration: underline;
}

.topnav {
    position: sticky;
    top: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: rgba(13,13,13,0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
}

.nav-brand a {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--text);
}

.nav-links {
    display: flex;
    gap: 1.25rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.95rem;
    position: relative;
}

.nav-links a.active,
.nav-links a:hover {
    color: var(--text);
}

.badge {
    background: var(--accent);
    color: white;
    font-size: 0.7rem;
    padding: 0.1rem 0.45rem;
    border-radius: 999px;
    margin-left: 0.3rem;
    font-weight: 600;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 1.5rem;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.page-header h1 {
    margin: 0;
    font-size: 1.75rem;
}

.count-badge {
    background: var(--surface-2);
    padding: 0.35rem 0.8rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    color: var(--text-muted);
}

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

.select-all {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
}

.toolbar-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

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

button, .btn-primary, .btn-read, .btn-action, .btn-refresh, .btn-bulk {
    border: none;
    border-radius: var(--radius);
    padding: 0.55rem 1rem;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.15s, transform 0.05s;
    font-weight: 500;
}

button:disabled, .btn-bulk:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.btn-primary, .btn-read {
    background: var(--accent);
    color: white;
}

.btn-primary:hover, .btn-read:hover {
    background: var(--accent-hover);
}

.btn-refresh {
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-refresh:hover {
    background: var(--surface);
}

.btn-action {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.btn-action:hover {
    background: var(--surface-2);
    color: var(--text);
}

.btn-bulk {
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-bulk:hover:not(:disabled) {
    background: var(--surface);
}

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

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.1rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    box-shadow: var(--shadow);
}

.card-select {
    padding-top: 0.2rem;
}

.card-body {
    flex: 1;
    min-width: 0;
}

.card-meta {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.4rem;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.source {
    color: var(--accent);
    font-weight: 600;
}

.card-title {
    margin: 0 0 0.5rem 0;
    font-size: 1.15rem;
    line-height: 1.35;
}

.card-summary {
    margin: 0 0 0.8rem 0;
    color: var(--text-muted);
    font-size: 0.95rem;
}

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

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.auth-box {
    max-width: 420px;
    margin: 4rem auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.auth-box h1 {
    margin: 0 0 0.3rem 0;
}

.auth-box p {
    color: var(--text-muted);
    margin-top: 0;
}

.auth-box form {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.auth-box label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.auth-box input {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.7rem;
    color: var(--text);
    font-size: 1rem;
}

.auth-box input:focus {
    outline: none;
    border-color: var(--accent);
}

.auth-link {
    text-align: center;
    margin-top: 1.5rem;
}

.flash-messages {
    margin-bottom: 1rem;
}

.flash {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
}

.flash-error {
    background: rgba(239,68,68,0.12);
    color: #fca5a5;
    border: 1px solid rgba(239,68,68,0.25);
}

.flash-success {
    background: rgba(34,197,94,0.12);
    color: #86efac;
    border: 1px solid rgba(34,197,94,0.25);
}

.settings-card {
    margin-bottom: 1rem;
}

.settings-card h2 {
    margin-top: 0;
    font-size: 1.2rem;
}

@media (max-width: 600px) {
    .topnav {
        flex-direction: column;
        gap: 0.6rem;
        align-items: flex-start;
    }

    .nav-links {
        flex-wrap: wrap;
        gap: 0.9rem;
    }

    .toolbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .toolbar-actions {
        width: 100%;
    }

    .card {
        flex-direction: column;
        gap: 0.6rem;
    }
}