/* ===========================================================
   MANUAL
   =========================================================== */

/* ---------- HEAD ---------- */

.manual-head {
    padding-block: clamp(40px, 5vw, 60px) clamp(48px, 6vw, 76px);
    position: relative;
    overflow: hidden;
}

.manual-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line-light);
    color: rgba(242, 237, 226, 0.4);
}

.manual-main {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--gutter);
    align-items: end;
    padding-block: clamp(36px, 5vw, 60px) 32px;
    position: relative;
    z-index: 1;
}

.manual-title .kicker {
    margin-bottom: 22px;
}

.manual-head h1 {
    font-size: clamp(4rem, 8.6vw, 7.8rem);
    color: var(--bone);
    line-height: 0.9;
}

.manual-lead {
    max-width: 29ch;
    padding-bottom: 6px;
    color: rgba(242, 237, 226, 0.6);
    font-size: clamp(0.95rem, 1.1vw, 1.05rem);
    line-height: 1.9;
}

.manual-search {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 14px;
    border-top: 1px solid var(--line-light);
    border-bottom: 1px solid rgba(242, 237, 226, 0.4);
    padding: 12px 0;
}

.manual-search > i {
    color: rgba(242, 237, 226, 0.42);
    font-size: 0.9rem;
}

.manual-search input {
    flex: 1;
    min-width: 0;
    padding: 8px 0;
    border: 0;
    background: transparent;
    color: var(--bone);
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    outline: none;
}

.manual-search input::placeholder {
    color: rgba(242, 237, 226, 0.32);
}

.manual-search:focus-within {
    border-bottom-color: var(--signal);
}

.manual-search .search-hint {
    font-family: var(--font-latin);
    font-size: 0.6rem;
    letter-spacing: 0.06em;
    color: rgba(242, 237, 226, 0.28);
    white-space: nowrap;
}

.manual-empty {
    margin-top: 22px;
    padding: 14px 16px;
    border: 1px solid rgba(242, 237, 226, 0.28);
    color: rgba(242, 237, 226, 0.66);
    font-size: 0.86rem;
    max-width: 60ch;
}

.manual-empty[hidden] {
    display: none;
}

/* ---------- INDEX TABLE ---------- */

.manual-index {
    background: var(--bone);
    border-bottom: 1px solid var(--line);
}

.index-table {
    border-top: 1px solid var(--line-strong);
}

.index-row {
    display: grid;
    grid-template-columns: 64px minmax(0, 2.4fr) minmax(0, 0.7fr) minmax(0, 4fr);
    gap: 24px;
    align-items: start;
    padding: 20px 0;
    border-bottom: 1px solid var(--line);
}

.index-num {
    font-family: var(--font-latin);
    font-size: 0.68rem;
    color: var(--signal-deep);
    padding-top: 5px;
}

.index-name {
    font-size: 1.12rem;
    font-weight: 500;
    line-height: 1.5;
}

.index-count {
    font-family: var(--font-latin);
    font-size: 0.68rem;
    color: var(--muted);
    padding-top: 5px;
}

.index-links {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 20px;
}

.index-links a {
    font-size: 0.83rem;
    color: var(--muted);
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
    transition: color var(--fast), border-color var(--fast);
}

.index-links a:hover {
    color: var(--hull);
    border-color: var(--signal);
}

/* ---------- MANUAL BODY ---------- */

.manual-body {
    background: var(--bone-bright);
    padding-block: clamp(64px, 8vw, 112px);
    border-bottom: 1px solid var(--line);
}

.manual-layout {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: var(--gutter);
    align-items: start;
}

.manual-rail {
    position: sticky;
    top: calc(var(--nav-h) + 32px);
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--line-strong);
}

.rail-link {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 11px 0;
    border-bottom: 1px solid var(--line);
    font-size: 0.82rem;
    color: var(--muted);
    transition: color var(--fast);
}

.rail-link .code {
    font-size: 0.58rem;
    color: var(--signal-deep);
}

.rail-link:hover {
    color: var(--hull);
}

.rail-note {
    margin-top: 24px;
    max-width: 20ch;
    font-size: 0.76rem;
    line-height: 1.7;
    color: var(--muted);
}

.manual-entries {
    min-width: 0;
}

.manual-chapter {
    padding-bottom: 10px;
    border-top: 1px solid var(--line-strong);
    padding-top: 18px;
    margin-bottom: 32px;
}

.manual-chapter:last-child {
    margin-bottom: 0;
}

.manual-chapter-head {
    display: flex;
    align-items: baseline;
    gap: 14px;
    margin-bottom: 6px;
}

.manual-chapter-num {
    font-family: var(--font-latin);
    font-size: 0.66rem;
    color: var(--signal-deep);
}

.manual-chapter-head h3 {
    font-size: 1.16rem;
    font-weight: 600;
}

.manual-entry {
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 16px;
    padding: 20px 0;
    border-top: 1px solid var(--line);
}

.manual-entry h4 {
    font-size: 1.02rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.manual-entry p {
    font-size: 0.87rem;
    line-height: 1.85;
    max-width: 62ch;
}

.entry-num {
    font-size: 0.62rem;
    color: var(--muted);
    padding-top: 5px;
}

.manual-entry.is-hidden,
.manual-chapter.is-hidden {
    display: none;
}

/* ---------- SUPPORT ---------- */

.support {
    background: var(--signal);
    color: var(--hull-deep);
    padding-block: clamp(56px, 7vw, 88px);
}

.support-grid {
    display: grid;
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: end;
}

.support-kicker {
    color: rgba(7, 30, 32, 0.6);
    margin-bottom: 22px;
}

.support-kicker::before {
    background: var(--hull-deep);
}

.support h2 {
    color: var(--hull-deep);
    font-size: clamp(3rem, 6.4vw, 6rem);
    line-height: 0.9;
}

.support-side p {
    color: rgba(7, 30, 32, 0.7);
    font-size: 0.94rem;
    max-width: 28ch;
}

.support-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px 28px;
    margin-top: 26px;
}

.support-phone {
    font-family: var(--font-latin);
    font-size: clamp(1rem, 2.2vw, 1.4rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--hull-deep);
    text-decoration: none;
    overflow-wrap: anywhere;
    transition: color var(--fast);
}

.support-phone:hover {
    color: var(--signal-deep);
}

.support .btn {
    border-color: var(--hull-deep);
    color: var(--hull-deep);
}

.support .btn .btn-arrow {
    background: var(--hull-deep);
    color: var(--bone);
}

.support .btn:hover {
    background: var(--hull-deep);
    color: var(--bone);
}

.support .btn:hover .btn-arrow {
    background: var(--bone);
    color: var(--hull-deep);
}

/* ---------- RESPONSIVE ---------- */

@media (max-width: 980px) {
    .manual-main {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .manual-lead {
        max-width: 42ch;
    }

    .index-row {
        grid-template-columns: 44px minmax(0, 1fr) auto;
        gap: 16px;
    }

    .index-links {
        grid-column: 2 / -1;
        margin-top: 4px;
    }

    .manual-layout {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .manual-rail {
        position: static;
        display: grid;
        grid-template-columns: repeat(5, minmax(0, 1fr));
        border-bottom: 1px solid var(--line-strong);
    }

    .rail-link {
        flex-direction: column;
        gap: 4px;
        padding: 10px 12px;
        border-right: 1px solid var(--line);
        border-bottom: 0;
    }

    .rail-link:last-of-type {
        border-right: 0;
    }

    .rail-note {
        display: none;
    }

    .support-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .support h2 {
        max-width: 8ch;
    }
}

@media (max-width: 720px) {
    .manual-top {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
    }

    .manual-search .search-hint {
        display: none;
    }

    .index-row {
        grid-template-columns: 34px minmax(0, 1fr);
        gap: 8px 14px;
        padding: 18px 0;
    }

    .index-count {
        grid-column: 2;
        padding-top: 0;
    }

    .index-links {
        grid-column: 2;
    }

    .manual-rail {
        display: flex;
        overflow-x: auto;
        scrollbar-width: none;
    }

    .rail-link {
        flex: 0 0 auto;
        flex-direction: row;
        align-items: baseline;
        gap: 8px;
        padding: 12px 16px;
        border-bottom: 0;
        white-space: nowrap;
    }

    .manual-entry {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .entry-num {
        padding-top: 0;
    }
}