/* =============================================
   ARTICLE PAGE STYLES
   article.css — import alongside greentec.css
============================================= */

/* Back bar */
.article-back-bar {
    background: #f8fafc;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    padding: 16px 0;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--navy, #0f172a);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--green-accent, #22c55e);
}

/* Article page wrapper */
.article-page {
    padding: 60px 5% 80px;
    background: #fff;
    min-height: 60vh;
}

/* Loading / error states */
.article-loading,
.article-error {
    max-width: 820px;
    margin: 0 auto;
}

.article-error {
    text-align: center;
    padding: 80px 20px;
    color: var(--navy, #0f172a);
}

.article-error i {
    font-size: 3rem;
    color: #e2e8f0;
    margin-bottom: 20px;
    display: block;
}

.article-error h2 {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.article-error p {
    color: #64748b;
    margin-bottom: 30px;
}

/* Article inner */
.article-inner .container {
    max-width: 820px;
    margin: 0 auto;
}

/* Header */
.article-header {
    margin-bottom: 40px;
}

.article-header h1 {
    font-size: clamp(1.8rem, 4vw, 3rem);
    color: var(--navy, #0f172a);
    line-height: 1.25;
    margin-bottom: 16px;
}

.article-header .article-meta {
    font-size: 0.9rem;
    color: #64748b;
    font-weight: 400;
}

/* Cover image */
.article-cover {
    width: 100%;
    height: 420px;
    border-radius: 20px;
    background-size: cover;
    background-position: center;
    margin-bottom: 50px;
    display: none;
}

/* Body text */
.article-body {
    font-size: 1.08rem;
    line-height: 1.85;
    color: #334155;
}

.article-body p {
    margin-bottom: 1.4em;
}

.article-body h2 {
    font-size: 1.6rem;
    color: var(--navy, #0f172a);
    margin: 2em 0 0.6em;
}

.article-body h3 {
    font-size: 1.3rem;
    color: var(--navy, #0f172a);
    margin: 1.6em 0 0.5em;
}

.article-body blockquote {
    border-left: 4px solid var(--green-accent, #22c55e);
    padding: 16px 24px;
    margin: 2em 0;
    background: #f0fdf4;
    border-radius: 0 12px 12px 0;
    font-style: italic;
    color: #475569;
}

.article-body strong { color: var(--navy, #0f172a); }

/* CTA section */
.article-cta-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a2f 100%);
    padding: 80px 5%;
    text-align: center;
    color: white;
}

.article-cta-section h3 {
    font-size: 2rem;
    margin-bottom: 12px;
}

.article-cta-section p {
    color: #94a3b8;
    margin-bottom: 30px;
    font-size: 1.05rem;
}

/* Responsive */
@media (max-width: 768px) {
    .article-page { padding: 40px 5% 60px; }
    .article-cover { height: 220px; }
    .article-header h1 { font-size: 1.6rem; }
}