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

.header-identity {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
}
header span.tagline {
    font-size: 0.8rem;
    color: var(--muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 600;
}

/* ── Nav ── */
nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-link {
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    text-decoration: none;
    padding: 0.4em 0.9em;
    border-radius: 3px;
    font-weight: 600;
    transition: color 0.15s, background 0.15s;
}
.nav-link:hover {
    color: var(--accent);
}
.nav-link.nav-cta {
    color: #ffffff;
    background: var(--accent);
    font-weight: 600;
}
.nav-link.nav-cta:hover {
    background: var(--accent-dim);
}

/* ── Empty state ── */
.empty {
    text-align: center;
    padding: 6rem 2rem;
    color: var(--muted);
}
.empty p { font-size: 1.1rem; }

/* ── Newsletter list ── */
.newsletter-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 3px;
    overflow: hidden;
}

/* ── Newsletter row ── */
.newsletter-card {
    background: var(--bg);
    padding: 0.85rem 1.2rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    transition: background 0.12s ease;
    border-left: 3px solid transparent;
}
.newsletter-card:hover {
    background: var(--surface);
    border-left-color: var(--accent);
}
.newsletter-card.is-read {
    background: var(--read);
}
.newsletter-card.is-read:hover {
    background: #e8e8e8;
    border-left-color: var(--border);
}

.card-title {
    font-size: 0.95rem;
    color: var(--text);
    font-weight: 400;
}
.newsletter-card.is-read .card-title {
    color: var(--muted);
}

.badge-read {
    flex-shrink: 0;
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    padding: 0.2em 0.55em;
    border-radius: 2px;
    font-weight: 600;
}
.btn-show-more {
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 600;
    padding: 0.4em 0.9em;
    border-radius: 3px;
    color: var(--muted);
    background: transparent;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: color 0.15s, background 0.15s;
}

.btn-show-more:hover {
    color: var(--accent);
    background: var(--surface);
}

/* ── Loading State ── */
.btn-show-more.loading {
    cursor: wait;
}

.btn-show-more.loading .spinner {
    display: inline-block;
    width: 1em;
    height: 1em;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.btn-show-more.loading span {
    display: none; /* Hide the text content */
}

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