/**
 * How-to-use page. Scoped to .help-* so it cannot affect any other page.
 * Uses the existing EduProd design tokens from variables.css.
 */

.help-hero {
    padding: var(--space-2xl) 0 var(--space-xl);
    border-bottom: 1px solid var(--border-subtle);
    background:
        radial-gradient(900px 320px at 15% -10%, rgba(92, 225, 230, 0.10), transparent 65%),
        radial-gradient(700px 280px at 90% 0%, rgba(244, 123, 32, 0.10), transparent 65%);
}

.help-hero h1 {
    font-size: clamp(2rem, 4.2vw, 3.1rem);
    line-height: 1.1;
    margin: 0.5rem 0 0.9rem;
}

.help-lede {
    max-width: 62ch;
    color: var(--text-secondary);
    font-size: var(--text-lg);
    line-height: 1.65;
    margin: 0 0 var(--space-lg);
}

.help-lede.narrow { max-width: 70ch; }

.help-roles {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-sm);
}

.help-role {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1.1rem 1.15rem;
    border: 1px solid var(--border-medium);
    border-radius: 14px;
    background: var(--bg-card);
    color: var(--text-primary);
    text-decoration: none;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.help-role:hover,
.help-role:focus-visible {
    transform: translateY(-2px);
    border-color: var(--brand-orange);
    background: var(--bg-card-hover);
}

.help-role-icon { font-size: 1.5rem; line-height: 1; }
.help-role strong { font-size: var(--text-base); }
.help-role small { color: var(--text-tertiary); font-size: var(--text-sm); }

.help-jump {
    position: sticky;
    top: 64px;
    z-index: 20;
    background: rgba(10, 14, 26, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-subtle);
}

.help-jump .container {
    display: flex;
    gap: 1.1rem;
    overflow-x: auto;
    padding-top: 0.7rem;
    padding-bottom: 0.7rem;
    scrollbar-width: thin;
}

.help-jump a {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
}

.help-jump a:hover,
.help-jump a:focus-visible { color: var(--brand-orange); }

.help-section { padding: var(--space-xl) 0; }
.help-section.alt {
    background: rgba(20, 28, 46, 0.35);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.help-section h2 {
    font-size: clamp(1.5rem, 2.8vw, 2.1rem);
    margin: 0.35rem 0 1.1rem;
}

.help-note {
    margin-top: var(--space-md);
    color: var(--text-secondary);
    line-height: 1.6;
}

.help-small { color: var(--text-tertiary); font-size: var(--text-sm); line-height: 1.55; }
.help-note a, .help-small a { color: var(--brand-orange); }

.help-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.9rem;
    counter-reset: none;
}

.help-steps li {
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 0.9rem;
    padding: 1rem 1.1rem;
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    background: var(--bg-card);
}

.help-steps strong { display: block; margin-bottom: 0.25rem; }
.help-steps p { margin: 0; color: var(--text-secondary); line-height: 1.6; }
.help-steps a { color: var(--brand-orange); }

.help-step-num {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(244, 123, 32, 0.14);
    border: 1px solid rgba(244, 123, 32, 0.4);
    color: var(--brand-orange);
    font-weight: 800;
}

.help-split {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-sm);
}

.help-panel {
    padding: 1.2rem 1.3rem;
    border: 1px solid var(--border-medium);
    border-radius: 14px;
    background: var(--bg-card);
}

.help-panel h3 { margin: 0 0 0.15rem; font-size: var(--text-lg); }
.help-panel-tag {
    margin: 0 0 0.75rem;
    color: var(--brand-orange);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.help-panel ul, .help-mini-steps {
    margin: 0;
    padding-left: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.65;
}
.help-panel li + li, .help-mini-steps li + li { margin-top: 0.35rem; }
.help-panel code {
    background: rgba(92, 225, 230, 0.12);
    border-radius: 5px;
    padding: 0.05rem 0.3rem;
    color: var(--text-primary);
}

.help-loop, .help-loop.second-row {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    align-items: stretch;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}
.help-loop.second-row {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    margin-bottom: 0;
}

.help-loop-step {
    padding: 0.9rem 0.95rem;
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    background: var(--bg-card);
}

.help-loop-step span {
    display: inline-grid;
    place-items: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    margin-bottom: 0.45rem;
    background: rgba(92, 225, 230, 0.12);
    color: var(--chemistry-light);
    font-weight: 800;
    font-size: var(--text-sm);
}

.help-loop-step strong { display: block; font-size: var(--text-sm); margin-bottom: 0.3rem; }
.help-loop-step p { margin: 0; color: var(--text-tertiary); font-size: 0.82rem; line-height: 1.5; }

.help-loop-arrow {
    display: grid;
    place-items: center;
    color: var(--text-muted);
    font-size: 1.1rem;
}

.help-cards {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-sm);
}

.help-card {
    padding: 1.15rem 1.25rem;
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    background: var(--bg-card);
}

.help-card h3 { margin: 0 0 0.35rem; font-size: var(--text-base); }
.help-card p { margin: 0; color: var(--text-secondary); line-height: 1.6; }

.help-faq {
    display: grid;
    gap: 0.55rem;
    max-width: 900px;
}

.help-faq details {
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    background: var(--bg-card);
    padding: 0.85rem 1rem;
}

.help-faq summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--text-primary);
    list-style-position: outside;
}

.help-faq summary::marker { color: var(--brand-orange); }

.help-faq details[open] summary { margin-bottom: 0.6rem; }

.help-faq p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.65;
}

.help-faq a { color: var(--brand-orange); }

.help-support {
    padding: var(--space-xl) 0;
    background:
        radial-gradient(700px 240px at 20% 0%, rgba(244, 123, 32, 0.10), transparent 70%),
        rgba(20, 28, 46, 0.5);
    border-top: 1px solid var(--border-subtle);
}

.help-support .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.help-support h2 { margin: 0 0 0.35rem; }
.help-support p { margin: 0; color: var(--text-secondary); max-width: 62ch; line-height: 1.6; }
.help-support a { color: var(--brand-orange); }
.help-support-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }

.help-cta {
    display: inline-block;
    margin-top: 0.2rem;
    padding: 0.6rem 1rem;
    border-radius: 9px;
    background: var(--brand-orange);
    color: #fff !important;
    font-weight: 700;
    text-decoration: none;
}

@media (max-width: 1024px) {
    .help-loop, .help-loop.second-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .help-loop-arrow { display: none; }
}

@media (max-width: 820px) {
    .help-roles, .help-split, .help-cards { grid-template-columns: 1fr; }
    .help-jump { top: 0; }
}

@media (max-width: 560px) {
    .help-loop, .help-loop.second-row { grid-template-columns: 1fr; }
    .help-steps li { grid-template-columns: 38px minmax(0, 1fr); }
}

/* Three-phase summary: Learn -> Test -> Remediate */
.help-phases {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    gap: 0.6rem;
    align-items: stretch;
    margin: 1.2rem 0 0.9rem;
}

.help-phase {
    padding: 1.1rem 1.15rem;
    border: 1px solid var(--border-medium);
    border-radius: 14px;
    background: var(--bg-card);
}

.help-phase-tag {
    display: inline-block;
    margin-bottom: 0.35rem;
    color: var(--brand-orange);
    font-size: var(--text-xs);
    font-weight: 800;
    letter-spacing: 0.08em;
}

.help-phase strong { display: block; font-size: var(--text-xl); margin-bottom: 0.35rem; }
.help-phase p { margin: 0; color: var(--text-secondary); line-height: 1.6; }

.help-phase-arrow {
    display: grid;
    place-items: center;
    color: var(--text-muted);
    font-size: 1.4rem;
}

.help-loopback {
    margin: 0.9rem 0 1.4rem;
    padding: 0.85rem 1rem;
    border-left: 3px solid var(--brand-orange);
    border-radius: 0 10px 10px 0;
    background: rgba(244, 123, 32, 0.08);
    color: var(--text-secondary);
    line-height: 1.6;
}

.help-loopback strong { color: var(--text-primary); }

@media (max-width: 820px) {
    .help-phases { grid-template-columns: 1fr; }
    .help-phase-arrow { display: none; }
}