/* ═══ How It Works Page ═══ */

/* Hero */
.hiw-hero {
    padding: 160px var(--space-xl) 80px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hiw-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 400;
    color: var(--text-primary);
    margin: 0 0 20px;
}

.hiw-subtitle {
    font-family: var(--font-body);
    font-size: 20px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}

/* Sections - Full Width Alternating */
.hiw-section {
    padding: 80px var(--space-xl);
    max-width: 1300px;
    margin: 0 auto;
}

.hiw-section h2 {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0 0 28px;
}

.hiw-section p {
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.9;
    color: var(--text-secondary);
    margin: 0 0 20px;
}

.hiw-section p:last-child {
    margin-bottom: 0;
}

/* Two Column Layout */
.hiw-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.hiw-two-col-text {
    max-width: none;
}

.hiw-two-col-visual {
    background: var(--color-surface);
    border: 1px solid var(--color-elevated);
    border-radius: 16px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.hiw-two-col-visual .visual-label {
    font-family: var(--font-accent);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.hiw-two-col-visual .visual-diagram {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 2px solid var(--color-gold);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hiw-two-col-visual .visual-diagram::before,
.hiw-two-col-visual .visual-diagram::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(201, 162, 39, 0.3);
}

.hiw-two-col-visual .visual-diagram::before {
    width: 140px;
    height: 140px;
}

.hiw-two-col-visual .visual-diagram::after {
    width: 80px;
    height: 80px;
}

.hiw-two-col-visual .visual-core {
    width: 24px;
    height: 24px;
    background: var(--color-gold);
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(201, 162, 39, 0.5);
}

/* Highlight Box */
.hiw-highlight {
    background: rgba(201, 162, 39, 0.06);
    border: 1px solid rgba(201, 162, 39, 0.25);
    border-radius: 12px;
    padding: 32px 36px;
    margin-top: 30px;
}

.hiw-highlight h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-gold);
    margin: 0 0 14px;
}

.hiw-highlight p {
    font-size: 17px;
    color: var(--text-secondary);
    margin: 0;
}

/* Node Classification - Visual Grid */
.hiw-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
    margin-top: 36px;
}

.hiw-card {
    background: var(--color-surface);
    border: 1px solid var(--color-elevated);
    border-radius: 14px;
    padding: 32px;
    position: relative;
    transition: border-color 0.2s, transform 0.2s;
}

.hiw-card:hover {
    border-color: rgba(201, 162, 39, 0.4);
    transform: translateY(-2px);
}

.hiw-card-order {
    font-family: var(--font-accent);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-gold);
    margin-bottom: 10px;
}

.hiw-card h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0 0 12px;
}

.hiw-card p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

/* Energy Line Types - Side by Side */
.hiw-definitions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 36px 0 0;
}

.hiw-def-row {
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-elevated);
    border-radius: 12px;
}

.hiw-def-row dt {
    font-family: var(--font-accent);
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.hiw-def-row dd {
    margin: 0;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* Full-width band sections */
.hiw-band {
    background: var(--color-surface);
    border-top: 1px solid var(--color-elevated);
    border-bottom: 1px solid var(--color-elevated);
}

/* CTA */
.hiw-cta {
    display: flex;
    gap: 16px;
    margin-top: 36px;
    flex-wrap: wrap;
}

/* Stats row */
.hiw-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.hiw-stat {
    text-align: center;
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-elevated);
    border-radius: 12px;
}

.hiw-stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 400;
    color: var(--color-gold);
    display: block;
    margin-bottom: 6px;
}

.hiw-stat-label {
    font-family: var(--font-accent);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 900px) {
    .hiw-two-col {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hiw-definitions {
        grid-template-columns: 1fr;
    }
    .hiw-grid {
        grid-template-columns: 1fr;
    }
    .hiw-stats {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .hiw-hero {
        padding: 120px var(--space-md) 50px;
    }
    .hiw-section {
        padding: 50px var(--space-md);
    }
    .hiw-stats {
        grid-template-columns: 1fr;
    }
}