/* ── Hero Section ───────────────────────────────── */
.home-hero {
    padding: 160px 80px 100px 80px;
    max-width: 1300px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 80px;
}

.hero-text { flex: 1.2; }

.hero-headline {
    font-size: clamp(40px, 5vw, 64px);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 32px;
}

.hero-body {
    font-size: 18px;
    line-height: 1.7;
    color: var(--gray);
    margin-bottom: 24px;
    max-width: 620px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.hero-diagram { flex: 0.8; display: flex; align-items: center; justify-content: center; }

/* Neutral layer diagram */
.diagram-container {
    width: 320px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.diagram-party {
    width: 200px;
    padding: 20px 0;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray);
    letter-spacing: 0.02em;
}

.diagram-connector {
    width: 1px;
    height: 32px;
    background: rgba(0,0,0,0.15);
}

.diagram-neutral {
    width: 100%;
    padding: 24px 0;
    text-align: center;
    border: 1.5px solid var(--black);
    border-radius: 8px;
}

.diagram-neutral-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--light-gray);
    display: block;
    margin-bottom: 4px;
}

.diagram-neutral-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--black);
    letter-spacing: -0.02em;
}

/* ── Problem + Product Section (grey box) ───────── */
.problem-section {
    background-color: var(--warm-grey);
    padding: 64px 72px;
    max-width: 1300px;
    margin: 0 auto 32px auto;
    border-radius: 24px;
}

.problem-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.problem-headline {
    font-size: clamp(32px, 3.5vw, 44px);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 20px;
}

.problem-body {
    font-size: 17px;
    line-height: 1.6;
    color: #4a4a4a;
}

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

.product-step {
    padding: 24px 0;
    border-bottom: 1px solid rgba(0,0,0,0.08);
    display: grid;
    grid-template-columns: 32px 1fr;
    gap: 16px;
    align-items: start;
}

.product-step:first-child {
    border-top: 1px solid rgba(0,0,0,0.08);
}

.step-number {
    font-size: 13px;
    font-weight: 600;
    color: var(--light-gray);
    padding-top: 3px;
}

.step-content h3 {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 8px;
}

.step-content p {
    font-size: 15px;
    line-height: 1.6;
    color: #4a4a4a;
}

/* ── Why Neutral Section ────────────────────────── */
.neutral-section {
    max-width: 1300px;
    margin: 0 auto;
    padding: 100px 80px;
}

.neutral-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.neutral-headline {
    font-size: clamp(32px, 3.5vw, 44px);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 24px;
}

.neutral-body {
    font-size: 17px;
    line-height: 1.7;
    color: var(--gray);
    margin-bottom: 16px;
}

.structural-points {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.structural-point {
    padding: 28px 0;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.structural-point:first-child {
    border-top: 1px solid rgba(0,0,0,0.08);
}

.structural-point-keyword {
    font-size: 48px;
    font-weight: 600;
    letter-spacing: -0.03em;
    display: block;
    margin-bottom: 8px;
}

.structural-point-text {
    font-size: 15px;
    line-height: 1.5;
    color: var(--gray);
}

/* ── Thoughts Section ───────────────────────────── */
.thoughts-section {
    max-width: 1300px;
    margin: 0 auto;
    padding: 48px 80px 80px 80px;
}

.thoughts-header {
    margin-bottom: 24px;
}

.thoughts-list {
    border-top: 1px solid rgba(0,0,0,0.1);
}

.thought-row {
    display: grid;
    grid-template-columns: 1fr 140px 100px;
    gap: 24px;
    padding: 20px 0;
    border-bottom: 1px solid rgba(0,0,0,0.08);
    text-decoration: none;
    color: inherit;
    transition: opacity 0.2s ease;
    align-items: center;
}
.thought-row:hover { opacity: 0.6; }

.thought-title {
    font-size: 17px;
    font-weight: 500;
    color: var(--black);
    letter-spacing: -0.01em;
}

.thought-category {
    font-size: 14px;
    color: var(--gray);
}

.thought-date {
    font-size: 14px;
    color: var(--gray);
    text-align: right;
}

.thoughts-footer {
    margin-top: 24px;
}

.view-all-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--black);
    text-decoration: none;
    transition: opacity 0.2s ease;
}
.view-all-link:hover { opacity: 0.6; }

/* ── MOBILE OVERRIDES (page-specific) ────────────── */
@media (max-width: 1024px) {
    /* Hero Mobile */
    .home-hero {
        flex-direction: column;
        padding: 120px 24px 48px 24px;
        gap: 48px;
    }
    .hero-headline { font-size: 36px; }
    .hero-body { font-size: 16px; }
    .hero-diagram { display: none; }
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; max-width: 280px; justify-content: center; }

    /* Problem Section Mobile */
    .problem-section { padding: 40px 24px; margin: 0 12px 12px 12px; }
    .problem-grid { grid-template-columns: 1fr; gap: 40px; }
    .problem-headline { font-size: 28px; }
    .step-content h3 { font-size: 17px; }

    /* Neutral Section Mobile */
    .neutral-section { padding: 64px 24px; }
    .neutral-grid { grid-template-columns: 1fr; gap: 48px; }
    .neutral-headline { font-size: 28px; }
    .structural-point-keyword { font-size: 36px; }

    /* Thoughts Mobile */
    .thoughts-section { padding: 32px 24px 64px 24px; }
    .thought-row {
        grid-template-columns: 1fr;
        gap: 8px; padding: 16px 0;
    }
    .thought-category, .thought-date { font-size: 13px; text-align: left; }
    .thought-title { font-size: 16px; }
}