/* ─── PAGE HERO ─────────────────────────────────────────────── */
.page-hero {
    background: linear-gradient(135deg, var(--red) 0%, var(--red-dark) 100%);
    color: var(--white);
    padding: 48px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 80% 50%, rgba(255,255,255,0.06) 0%, transparent 60%),
    radial-gradient(circle at 20% 80%, rgba(0,0,0,0.1) 0%, transparent 50%);
}

.page-hero__content { position: relative; }

.page-hero__eyebrow {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.65);
    margin-bottom: 12px;
}

.page-hero__title {
    font-family: var(--font-display);
    font-size: clamp(32px, 4.5vw, 52px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.5px;
}

/* ─── SECTION SHARED ────────────────────────────────────────── */
.section-title {
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 600;
    color: var(--ink);
    text-align: center;
    margin-bottom: 8px;
    line-height: 1.2;
}

.section-rule {
    width: 48px;
    height: 3px;
    background: var(--red);
    margin: 16px auto 48px;
    border-radius: 2px;
}

/* ─── ELISA SECTION ─────────────────────────────────────────── */
.elisa-section {
    padding: 80px 0;
    background: var(--white);
}

.dept-block {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 48px;
    align-items: start;
    max-width: 960px;
    margin: 0 auto;
}

.dept-block-elisa {
    display: block;
    grid-template-columns: 380px 1fr;
    gap: 48px;
    align-items: start;
    max-width: 960px;
    margin: 0 auto;
}
.dept-block__img-elisa {
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0,0,0,0.1);
    border: 1px solid var(--border);
    line-height: 0;
    width: 80%;
    justify-self: center;
}
.dept-block__img-elisa img {
    padding: 0.5rem;
    border-radius: 10px;
    transition: 0.3s ease-in-out;
}
.dept-block__img-elisa img:hover {
    transform: scale(1.02);
}

@media (width <= 768px){
    .dept-block__img-elisa {
    width: 100%;
}
}

.dept-block--reverse {
    grid-template-columns: 1fr 380px;
}

.dept-block--reverse .dept-block__img { order: 2; }
.dept-block--reverse .dept-block__text { order: 1; }

.dept-block__img {
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0,0,0,0.1);
    border: 1px solid var(--border);
    line-height: 0;
}

.dept-block__img img {
    display: block;
    width: 100%;
    height: 260px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.dept-block__img:hover img { transform: scale(1.03); }

.dept-block__text {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.dept-block__label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--red);
}

.dept-block__heading {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.3;
}

.dept-block__body {
    font-size: 14.5px;
    color: var(--muted);
    line-height: 1.8;
}

/* Markers card */
.markers-card {
    background: var(--cream);
    border: 1px solid var(--border);
    border-left: 3px solid var(--red);
    border-radius: 4px;
    padding: 20px 24px;
}

.markers-card__title {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 12px;
}

.markers-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.marker-tag {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 700;
    color: var(--ink);
}

/* ─── NAT SECTION ────────────────────────────────────────────── */
.nat-section {
    padding: 80px 0;
    background: var(--red-pale);
}

.nat-wrap {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.nat-intro {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 48px;
    align-items: start;
}

.nat-intro__img {
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0,0,0,0.1);
    border: 1px solid var(--border);
    line-height: 0;
    width: 100%;
    height: auto;
}

.nat-intro__img img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: transform 0.4s ease;
    padding: 0.5rem;
    border-radius: 10px;
}

.nat-intro__img:hover img { transform: scale(1.03); }

.nat-intro__content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.nat-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--red);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 5px 12px;
    border-radius: 2px;
}

.nat-badge::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: rgba(255,255,255,0.6);
}

.nat-intro__heading {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.3;
}

.nat-intro__body {
    font-size: 14.5px;
    color: var(--muted);
    line-height: 1.8;
}

/* Window period stats */
.window-stats {
    display: flex;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    background: var(--white);
}

.window-stat {
    flex: 1;
    text-align: center;
    padding: 22px 16px;
    border-right: 1px solid var(--border);
    transition: background 0.2s;
}

.window-stat:last-child { border-right: none; }
.window-stat:hover { background: var(--red-pale); }

.window-stat__virus {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}

.window-stat__time {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 700;
    color: var(--red);
    line-height: 1;
    margin-bottom: 6px;
}

.window-stat__label {
    font-size: 11px;
    color: var(--muted);
}

/* ─── WORKFLOW SECTION ───────────────────────────────────────── */
.workflow-section {
    padding: 80px 0;
    background: var(--white);
}

.workflow-card {
    max-width: 820px;
    margin: 0 auto;
    background: var(--white);
    border: 1px solid var(--border);
    border-top: 4px solid var(--red);
    border-radius: 4px;
    padding: 44px 48px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.workflow-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--red-pale);
    color: var(--red);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 5px 12px;
    border-radius: 2px;
    margin-bottom: 20px;
}

.workflow-badge::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--red);
}

.workflow-card__title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 24px;
    line-height: 1.35;
}

.workflow-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.workflow-step {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

.workflow-step:last-child { border-bottom: none; padding-bottom: 0; }
.workflow-step:first-child { padding-top: 0; }

.workflow-step__num {
    flex-shrink: 0;
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--red);
    color: var(--white);
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
}

.workflow-step__body {
    flex: 1;
}

.workflow-step__title {
    font-size: 15px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 6px;
}

.workflow-step__desc {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.7;
}

/* ─── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 900px) {
    .dept-block,
    .dept-block--reverse { grid-template-columns: 1fr; max-width: 100%; }
    .dept-block--reverse .dept-block__img,
    .dept-block--reverse .dept-block__text { order: unset; }
    .nat-intro { grid-template-columns: 1fr; }
    .dept-block__img img,
    .nat-intro__img img { height: auto; }
    .window-stats { flex-wrap: wrap; }
    .window-stat { flex: 1 1 calc(33% - 1px); }
    .workflow-card { padding: 32px 24px; }
}

@media (max-width: 600px) {
    .page-hero { padding: 40px 20px; }
    .elisa-section, .nat-section, .workflow-section { padding: 56px 0; }
    .window-stats { flex-direction: column; }
    .window-stat { border-right: none; border-bottom: 1px solid var(--border); }
    .window-stat:last-child { border-bottom: none; }
}