:root {
    --primary: #C0392B;
    --primary-dark: #96281B;
    --primary-light: #E74C3C;
    --secondary: #1A1A2E;
    --accent: #F39C12;
    --text: #1A1A2E;
    --text-light: #6C7A89;
    --background: #F8F7F5;
    --surface: #FFFFFF;
}

/* ── Editorial SEO ─────────────────────────────────────────── */
.section-editorial-seo {
    padding: 4rem 1.5rem;
    background: var(--surface);
}
.section-editorial-seo .container {
    max-width: 740px;
    margin: 0 auto;
}
.section-editorial-seo p {
    font-size: 1.08rem;
    line-height: 1.85;
    color: var(--text);
    margin-bottom: 1.5rem;
}
.section-editorial-seo p:last-child {
    margin-bottom: 0;
}
.section-editorial-seo a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.section-editorial-seo a:hover {
    color: var(--primary-dark);
}

/* ── Hero diagonal drum ────────────────────────────────────── */
.section-hero-diagonal {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--secondary);
    color: #fff;
}
.hero-diagonal-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
}
.hero-diagonal-bg picture,
.hero-diagonal-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
}
.hero-diagonal-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--secondary) 0%, rgba(26,26,46,0.6) 50%, rgba(192,57,43,0.3) 100%);
    z-index: 2;
}
.hero-diagonal-content {
    position: relative;
    z-index: 3;
    max-width: 700px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
    text-align: center;
}
.hero-diagonal-content h1 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2.4rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
}
.hero-diagonal-content h1 em {
    font-style: normal;
    color: var(--accent);
}
.hero-diagonal-content p {
    font-size: 1.15rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.85);
    margin-bottom: 2.5rem;
}
.hero-diagonal-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}
.hero-diagonal-actions .btn-primary {
    background: var(--primary);
    color: #fff;
    padding: 0.9rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s, transform 0.2s;
}
.hero-diagonal-actions .btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}
.hero-diagonal-actions .btn-secondary {
    color: rgba(255,255,255,0.9);
    padding: 0.9rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid rgba(255,255,255,0.3);
    transition: border-color 0.3s, transform 0.2s;
}
.hero-diagonal-actions .btn-secondary:hover {
    border-color: #fff;
    transform: translateY(-2px);
}
.hero-diagonal-divider {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    z-index: 4;
}

/* ── Rhythm pillars ────────────────────────────────────────── */
.section-rhythm-pillars {
    padding: 5rem 1.5rem;
    background: var(--background);
}
.section-rhythm-pillars .container { max-width: 1100px; margin: 0 auto; }
.section-rhythm-pillars .section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}
.section-rhythm-pillars .section-header h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    color: var(--text);
}
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.pillar-card {
    background: var(--surface);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    transition: transform 0.3s, box-shadow 0.3s;
}
.pillar-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}
.pillar-number {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.12;
    position: absolute;
    top: 0.5rem;
    right: 1.2rem;
    line-height: 1;
}
.pillar-icon {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    display: block;
}
.pillar-card h3 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--text);
}
.pillar-card p {
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--text-light);
}

/* ── Clermont volcanic strip ───────────────────────────────── */
.section-volcanic-strip {
    background: var(--secondary);
    color: #fff;
    padding: 4rem 1.5rem;
    position: relative;
    overflow: hidden;
}
.section-volcanic-strip::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(192,57,43,0.15), transparent 70%);
    border-radius: 50%;
}
.section-volcanic-strip::after {
    content: '';
    position: absolute;
    bottom: -60px;
    left: -60px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(243,156,18,0.1), transparent 70%);
    border-radius: 50%;
}
.volcanic-inner {
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}
.volcanic-inner h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    margin-bottom: 1rem;
    text-align: center;
}
.volcanic-inner > p {
    max-width: 700px;
    margin: 0 auto 3rem;
    text-align: center;
    color: rgba(255,255,255,0.75);
    line-height: 1.7;
    font-size: 1.05rem;
}
.volcanic-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}
.volcanic-stat {
    text-align: center;
    padding: 1.5rem 2rem;
    border-radius: 12px;
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(4px);
    min-width: 160px;
}
.volcanic-stat .stat-number {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--accent);
    display: block;
    margin-bottom: 0.3rem;
}
.volcanic-stat .stat-label {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.65);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ── Articles ribbon ───────────────────────────────────────── */
.section-articles-ribbon {
    padding: 5rem 1.5rem;
    background: var(--background);
}
.section-articles-ribbon .container { max-width: 1100px; margin: 0 auto; }
.section-articles-ribbon .section-header {
    text-align: center;
    margin-bottom: 3rem;
}
.section-articles-ribbon .section-header h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    color: var(--text);
}
.section-articles-ribbon .section-header p {
    color: var(--text-light);
    margin-top: 0.5rem;
}
.ribbon-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.ribbon-card {
    display: grid;
    grid-template-columns: 80px 1fr;
    align-items: center;
    gap: 2rem;
    background: var(--surface);
    border-radius: 16px;
    padding: 2rem;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 2px 16px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    border-left: 4px solid transparent;
}
.ribbon-card:hover {
    transform: translateX(8px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    border-left-color: var(--primary);
}
.ribbon-num {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.2;
    text-align: center;
    line-height: 1;
}
.ribbon-body h3 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.25rem;
    color: var(--text);
    margin-bottom: 0.5rem;
}
.ribbon-body p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-light);
}

/* ── CTA pulse ─────────────────────────────────────────────── */
.section-cta-pulse {
    padding: 5rem 1.5rem;
    background: var(--background);
}
.cta-pulse-card {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 4rem 3rem;
    border-radius: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(192,57,43,0.25);
}
.cta-pulse-card::before {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 180px;
    height: 180px;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
}
.cta-pulse-card::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: -30px;
    width: 120px;
    height: 120px;
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
}
.cta-pulse-card h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}
.cta-pulse-card p {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.85);
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}
.cta-pulse-card .btn-cta {
    display: inline-block;
    background: #fff;
    color: var(--primary);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.3s;
    position: relative;
    z-index: 1;
}
.cta-pulse-card .btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
    .pillars-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .volcanic-stats { flex-direction: column; align-items: center; gap: 1rem; }
    .volcanic-stat { width: 100%; max-width: 300px; }
    .ribbon-card { grid-template-columns: 50px 1fr; gap: 1rem; padding: 1.5rem; }
    .ribbon-num { font-size: 2rem; }
    .cta-pulse-card { padding: 3rem 1.5rem; }
    .hero-diagonal-content { padding: 6rem 1.5rem 4rem; }
}