.growth-hub-page {
    min-width: 0;
}

.plan-lab-hero {
    max-width: 900px;
    margin: 0 auto 4.5rem;
    text-align: center;
}

.plan-lab-hero h1 {
    margin-bottom: 1.25rem;
    color: var(--ink);
    font-family: var(--font-heading);
    font-size: clamp(2.7rem, 8vw, 6.4rem);
    font-weight: 800;
    line-height: 0.94;
    letter-spacing: -0.06em;
    text-wrap: balance;
}

.plan-lab-hero h1 span {
    color: var(--coral-dark);
}

.plan-lab-hero p {
    max-width: 760px;
    margin: 0 auto 1.6rem;
    color: var(--ink-soft);
    font-size: clamp(1.05rem, 2vw, 1.2rem);
    line-height: 1.75;
}

.plan-lab-hero .hero-actions {
    justify-content: center;
}

.lab-intro,
.lab-flow,
.standalone-section {
    margin-bottom: 5.5rem;
}

.lab-intro,
.lab-flow {
    display: grid;
    grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr);
    gap: 2rem;
    align-items: start;
    padding: 1.8rem;
    background: var(--surface);
    border: 3px solid var(--ink);
    border-radius: var(--radius);
    box-shadow: var(--shadow-small);
}

.lab-intro h2,
.lab-flow h2,
.standalone-section h2 {
    margin: 0.45rem 0 0;
    color: var(--ink);
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 3rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
    text-wrap: balance;
}

.lab-intro-copy,
.lab-flow-copy {
    color: var(--ink-soft);
    line-height: 1.75;
}

.lab-intro-copy p,
.lab-flow-copy p {
    margin-bottom: 1rem;
}

.lab-intro-copy p:last-child,
.lab-flow-copy p:last-child {
    margin-bottom: 0;
}

.section-heading-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(240px, 0.7fr);
    gap: 2rem;
    align-items: end;
    margin-bottom: 1.5rem;
}

.section-heading-row p {
    color: var(--ink-soft);
    line-height: 1.7;
}

.system-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.system-card {
    min-width: 0;
    display: flex;
    flex-direction: column;
    padding: 1.25rem;
    color: var(--ink);
    background: var(--surface);
    border: 3px solid var(--ink);
    border-radius: var(--radius-small);
    box-shadow: 4px 4px 0 var(--ink);
    text-decoration: none;
    transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.system-card:hover {
    background: #fff3c7;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 var(--ink);
}

.system-number {
    color: var(--coral-dark);
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0.1em;
}

.system-card h3 {
    margin: 0.55rem 0 0.45rem;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    line-height: 1.1;
}

.system-card p {
    flex: 1;
    color: var(--ink-soft);
    font-size: 0.9rem;
    line-height: 1.65;
}

.system-link {
    margin-top: 1rem;
    color: var(--cobalt);
    font-size: 0.85rem;
    font-weight: 850;
}

.flow-list {
    display: grid;
    gap: 0.8rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.flow-list li {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 0.8rem;
    align-items: start;
    padding: 0.9rem;
    background: var(--paper);
    border: 2px solid var(--ink);
    border-radius: var(--radius-small);
}

.flow-list li > span {
    color: var(--coral-dark);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 850;
}

.flow-list h3 {
    margin-bottom: 0.25rem;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    line-height: 1.1;
}

.flow-list p {
    color: var(--ink-soft);
    font-size: 0.88rem;
    line-height: 1.6;
}

.standalone-section {
    max-width: 1120px;
    margin-inline: auto;
}

.standalone-group {
    margin-top: 3rem;
}

.standalone-group > h3 {
    margin-bottom: 1rem;
    color: var(--coral-dark);
    font-family: var(--font-heading);
    font-size: clamp(1.45rem, 3vw, 2.1rem);
    line-height: 1.1;
}

.standalone-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.9rem;
}

.standalone-card {
    min-width: 0;
    padding: 1rem;
    background: var(--surface);
    border: 2px solid var(--ink);
    border-radius: var(--radius-small);
}

.standalone-card h4 {
    margin-bottom: 0.45rem;
    color: var(--ink);
    font-family: var(--font-heading);
    font-size: 1.08rem;
    line-height: 1.15;
    overflow-wrap: anywhere;
}

.standalone-card h4 a {
    color: var(--cobalt);
    text-decoration-thickness: 2px;
}

.standalone-card p {
    color: var(--ink-soft);
    font-size: 0.85rem;
    line-height: 1.6;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.75rem;
}

.tag-list a {
    min-height: 32px;
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.5rem;
    color: var(--ink);
    background: var(--paper-deep);
    border: 1px solid var(--ink);
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 800;
    text-decoration: none;
}

.tag-list a:hover {
    background: var(--sun);
}

@media (max-width: 900px) {
    .system-grid,
    .standalone-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .plan-lab-hero,
    .lab-intro,
    .lab-flow,
    .section-heading-row {
        grid-template-columns: 1fr;
    }

    .plan-lab-hero {
        margin-bottom: 3rem;
    }

    .lab-intro,
    .lab-flow {
        padding: 1.2rem;
    }

    .system-grid,
    .standalone-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 320px) {
    .plan-lab-hero h1 {
        font-size: 2.35rem;
    }

    .plan-lab-hero .hero-actions .btn,
    .tag-list a {
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    .lab-intro,
    .lab-flow,
    .standalone-card {
        padding: 0.8rem;
    }

    .flow-list li {
        grid-template-columns: 1fr;
        gap: 0.3rem;
    }
}

@media print {
    .plan-lab-hero .hero-actions,
    .system-card .system-link,
    .tag-list,
    .skip-link {
        display: none;
    }

    .plan-lab-hero,
    .lab-intro,
    .lab-flow,
    .standalone-card {
        box-shadow: none;
    }

    .system-grid,
    .standalone-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .system-card,
    .standalone-card {
        break-inside: avoid;
    }
}