* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --manual-blue: #1D1B59;
    --manual-deep: #1E1D40;
    --manual-lime: #DFF2B6;
    --manual-gold: #D9BF73;
    --manual-coral: #D97B66;
    --manual-purple: #8C86C8;
    --page-width: 95%;
    --page-max: 1680px;
    --glass-dark: rgba(7, 8, 13, 0.70);
    --text-main: #F5F4F2;
    --text-muted: #CBCBD0;
}

html {
    min-height: 100%;
    background: #050508;
    scroll-behavior: smooth;
}

body {
    position: relative;
    isolation: isolate;
    min-height: 100vh;
    overflow-x: hidden;
    background: #050508;
    color: var(--text-main);
    font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, Arial, sans-serif;
    line-break: strict;
    overflow-wrap: break-word;
}

body::before {
    content: "";
    position: fixed;
    inset: -5%;
    z-index: -2;
    background: url("../images/index/background.png") center top / cover no-repeat;
    filter: blur(22px) brightness(0.48) saturate(0.72);
    transform: scale(1.1);
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        linear-gradient(to bottom, rgba(10, 9, 28, 0.38), rgba(2, 3, 6, 0.92)),
        rgba(0, 0, 0, 0.24);
}

a {
    color: inherit;
}

img,
video {
    max-width: 100%;
}

.top-line {
    width: 100%;
    min-height: 30px;
    padding: 5px clamp(8px, 0.6vw, 14px);
    display: flex;
    align-items: center;
    background: #171D25;
    color: rgba(255, 255, 255, 0.58);
    border-bottom: 1px solid #1E3040;
    font-size: clamp(0.74rem, 0.82vw, 0.95rem);
    font-weight: 700;
    letter-spacing: 0.03em;
}

.page-frame {
    width: min(var(--page-width), var(--page-max));
    margin-inline: auto;
}

.manual-title-wrap {
    padding-top: clamp(16px, 2vw, 30px);
}

.manual-title-bar {
    width: min(var(--page-width), var(--page-max));
    min-height: clamp(96px, 8vw, 138px);
    margin-inline: auto;
    padding: clamp(18px, 2.1vw, 34px) clamp(22px, 3vw, 48px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: clamp(24px, 4vw, 70px);
    background: var(--manual-blue);
    color: #fff;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.32);
}

.manual-title-kicker {
    margin-bottom: 7px;
    color: var(--manual-lime);
    font-size: clamp(0.68rem, 0.8vw, 0.86rem);
    font-weight: 900;
    letter-spacing: 0.18em;
}

.manual-title-bar h1 {
    font-family: Impact, "Arial Narrow", "Noto Sans JP", "Yu Gothic", sans-serif;
    font-size: clamp(2.15rem, 4.2vw, 5rem);
    font-weight: 900;
    line-height: 0.98;
    letter-spacing: 0.025em;
}

.manual-title-brand {
    flex: 0 1 360px;
    min-width: 230px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 14px;
}

.manual-title-brand img {
    width: clamp(92px, 9vw, 150px);
    height: auto;
    display: block;
}

.manual-title-brand p {
    color: rgba(255,255,255,0.78);
    font-size: clamp(0.72rem, 0.85vw, 0.9rem);
    font-weight: 800;
    line-height: 1.45;
    text-align: right;
}

.global-menu {
    position: relative;
    z-index: 20;
    margin-top: 10px;
    padding: 10px;
    display: flex;
    align-items: stretch;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 8px;
    border: 1px solid rgba(255,255,255,0.20);
    background: rgba(4, 5, 9, 0.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.menu-card {
    min-width: 118px;
    min-height: 44px;
    padding: 9px 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 1px solid rgba(255,255,255,0.72);
    background: #000;
    color: #fff;
    font: inherit;
    font-size: 0.84rem;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
    transition: background 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.menu-card:hover,
.menu-card:focus-visible,
.menu-card.active,
.menu-card[aria-current="page"],
.menu-dropdown.is-open > .menu-card {
    background: linear-gradient(90deg, rgba(223,242,182,0.12), rgba(83,143,75,0.72), rgba(223,242,182,0.12));
    box-shadow: 0 0 18px rgba(87,155,79,0.32);
    transform: translateY(-1px);
}

.menu-card:focus-visible,
.menu-panel a:focus-visible {
    outline: 2px solid var(--manual-lime);
    outline-offset: 2px;
}

.menu-dropdown {
    position: relative;
}

.menu-chevron {
    position: relative;
    width: 14px;
    height: 14px;
    flex: 0 0 14px;
    display: inline-block;
    color: rgba(255,255,255,0.90);
    transform-origin: 50% 50%;
    transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.menu-chevron::before,
.menu-chevron::after {
    content: "";
    position: absolute;
    top: 8.25px;
    width: 7px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
}

.menu-chevron::before {
    left: 0;
    transform: rotate(40deg);
    transform-origin: right center;
}

.menu-chevron::after {
    right: 0;
    transform: rotate(-40deg);
    transform-origin: left center;
}

.menu-dropdown.is-open > .menu-card .menu-chevron {
    transform: rotate(180deg);
}

.menu-panel {
    position: absolute;
    top: calc(100% + 7px);
    left: 0;
    z-index: 40;
    min-width: 190px;
    padding: 5px;
    display: grid;
    gap: 2px;
    border: 1px solid rgba(255,255,255,0.72);
    background: rgba(0,0,0,0.96);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-7px);
    transition: opacity 160ms ease, transform 160ms ease, visibility 160ms ease;
}

.menu-dropdown.is-open > .menu-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.menu-panel a {
    padding: 10px 12px;
    color: rgba(255,255,255,0.84);
    text-decoration: none;
    font-size: 0.86rem;
    line-height: 1.45;
}

.menu-panel a:hover {
    background: var(--manual-blue);
    color: #fff;
}

.menu-submenu {
    position: relative;
}

.menu-submenu-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.menu-submenu-chevron {
    display: inline-block;
    color: var(--manual-lime);
    font-size: 1.15em;
    line-height: 1;
    transition: transform 160ms ease;
}

.menu-subpanel {
    top: -5px;
    left: calc(100% + 7px);
    min-width: 210px;
    transform: translateX(-7px);
}

.menu-subpanel::before {
    content: "";
    position: absolute;
    top: 0;
    right: 100%;
    width: 8px;
    height: 100%;
}

.menu-submenu:hover > .menu-submenu-trigger,
.menu-submenu:focus-within > .menu-submenu-trigger,
.menu-submenu.is-open > .menu-submenu-trigger {
    background: var(--manual-blue);
    color: #fff;
}

.menu-submenu:hover > .menu-submenu-trigger .menu-submenu-chevron,
.menu-submenu:focus-within > .menu-submenu-trigger .menu-submenu-chevron,
.menu-submenu.is-open > .menu-submenu-trigger .menu-submenu-chevron {
    transform: translateX(2px);
}

.menu-submenu:hover > .menu-subpanel,
.menu-submenu:focus-within > .menu-subpanel,
.menu-submenu.is-open > .menu-subpanel {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.site-main {
    padding: clamp(18px, 2.5vw, 38px) 0 clamp(54px, 6vw, 96px);
}

.intro-panel,
.directory-panel,
.table-panel {
    height: auto;
    padding: clamp(22px, 3vw, 46px);
    border: 1px solid rgba(255,255,255,0.46);
    border-radius: 4px;
    background: var(--glass-dark);
    box-shadow: 0 18px 46px rgba(0,0,0,0.34);
    backdrop-filter: blur(24px) saturate(0.78);
    -webkit-backdrop-filter: blur(24px) saturate(0.78);
}

.breadcrumb {
    margin-bottom: 18px;
    color: rgba(255,255,255,0.58);
    font-size: 0.82rem;
    letter-spacing: 0.04em;
}

.breadcrumb a {
    color: var(--manual-lime);
    text-decoration: none;
}

.section-kicker {
    margin-bottom: 8px;
    color: var(--manual-gold);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.16em;
}

.intro-panel h2,
.directory-panel h2,
.table-panel h2 {
    margin-bottom: 14px;
    font-size: clamp(1.65rem, 2.5vw, 2.75rem);
    line-height: 1.2;
}

.intro-panel > p:not(.breadcrumb):not(.section-kicker),
.directory-panel > p:not(.section-kicker),
.table-panel > p:not(.section-kicker) {
    max-width: 1120px;
    color: var(--text-muted);
    font-size: clamp(0.96rem, 1.08vw, 1.08rem);
    line-height: 1.9;
}

.source-links {
    margin-top: 22px;
    padding-top: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    border-top: 1px solid rgba(255,255,255,0.18);
    color: rgba(255,255,255,0.66);
    font-size: 0.9rem;
}

.source-links a {
    color: var(--manual-lime);
    text-underline-offset: 3px;
}

.content-module {
    margin-top: clamp(34px, 4.8vw, 78px);
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
    align-items: stretch;
    gap: clamp(24px, 3vw, 56px);
}

.content-media {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    align-self: start;
    min-width: 0;
    margin: 0;
    overflow: hidden;
    border-radius: 5px;
    background: #08090C;
    box-shadow: 0 18px 44px rgba(0,0,0,0.42);
}

.content-media::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(to top, rgba(0,0,0,0.52), transparent 42%);
}

.content-media img,
.content-media video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.content-media figcaption {
    position: absolute;
    left: 16px;
    bottom: 12px;
    z-index: 1;
    color: rgba(255,255,255,0.84);
    font-size: clamp(0.68rem, 0.75vw, 0.8rem);
    font-weight: 900;
    letter-spacing: 0.1em;
}

.content-copy {
    min-width: 0;
    min-height: 100%;
    padding: clamp(4px,0.5vw,10px) clamp(4px,0.4vw,10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: var(--text-main);
    text-shadow: 0 2px 12px rgba(0,0,0,0.92);
}

.module-number {
    margin: 0 0 -6px;
    color: rgba(255,255,255,0.13);
    font-family: Impact, "Arial Narrow", Arial, sans-serif;
    font-size: clamp(3.2rem, 6vw, 7rem);
    line-height: 0.8;
}

.module-tag {
    width: fit-content;
    margin-bottom: 10px;
    padding: 5px 9px;
    color: #111;
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.1em;
}

.tag-lime { background: var(--manual-lime); }
.tag-gold { background: var(--manual-gold); }
.tag-coral { background: var(--manual-coral); }
.tag-purple { background: var(--manual-purple); }

.content-copy h2 {
    margin-bottom: 14px;
    font-size: clamp(1.45rem, 2vw, 2.35rem);
    line-height: 1.22;
}

.content-copy p:not(.module-number):not(.module-tag) {
    margin-top: 10px;
    color: rgba(242,242,244,0.88);
    font-size: clamp(0.92rem, 1vw, 1.05rem);
    line-height: 1.85;
}

.action-row {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.action-button {
    padding: 10px 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,0.78);
    background: rgba(0,0,0,0.62);
    color: #fff;
    font-weight: 800;
    text-decoration: none;
    transition: background 160ms ease, box-shadow 160ms ease;
}

.action-button:hover,
.action-button:focus-visible {
    background: linear-gradient(90deg, rgba(223,242,182,0.10), rgba(83,143,75,0.72), rgba(223,242,182,0.10));
    box-shadow: 0 0 18px rgba(87,155,79,0.32);
}

.steam-visual {
    padding: clamp(18px, 3vw, 36px);
    display: grid;
    align-content: center;
    gap: 18px;
    background: linear-gradient(135deg, #203447, #101A25);
}

.steam-visual::after {
    background: linear-gradient(to top, rgba(0,0,0,0.32), transparent 52%);
}

.steam-visual img {
    width: min(280px, 58%);
    height: auto;
    object-fit: contain;
}

.steam-visual-links {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 12px;
}

.steam-visual-links a {
    min-height: 56px;
    padding: 10px 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,0.24);
    border-radius: 5px;
    color: #fff;
    font-weight: 800;
    text-align: center;
    text-decoration: none;
}

.steam-store { background: linear-gradient(135deg, #2694D8, #145A96); }
.steam-profile { background: linear-gradient(135deg, #6A9B2F, #3F6F42); }

.directory-panel,
.table-panel {
    margin-top: clamp(38px, 5vw, 76px);
}

.directory-grid {
    margin-top: 24px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 16px;
}

.directory-card {
    min-height: 178px;
    padding: 22px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid rgba(255,255,255,0.50);
    background: rgba(0,0,0,0.52);
    color: #fff;
    text-decoration: none;
    transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.directory-card:hover,
.directory-card:focus-visible {
    transform: translateY(-3px);
    background: var(--manual-blue);
    box-shadow: 0 18px 34px rgba(0,0,0,0.32);
}

.directory-card span {
    color: var(--manual-lime);
    font-size: 0.75rem;
    font-weight: 900;
    letter-spacing: 0.14em;
}

.directory-card h3 {
    margin: 12px 0 8px;
    font-size: 1.35rem;
}

.directory-card p {
    color: rgba(255,255,255,0.72);
    line-height: 1.65;
}

.table-scroll {
    margin-top: 22px;
    overflow-x: auto;
}

.strategy-table {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
    background: rgba(0,0,0,0.38);
}

.strategy-table th,
.strategy-table td {
    padding: 13px 14px;
    border: 1px solid rgba(255,255,255,0.28);
    text-align: left;
    vertical-align: top;
    line-height: 1.6;
}

.strategy-table th {
    background: var(--manual-blue);
    color: #fff;
}

.strategy-table tr:nth-child(even) td {
    background: rgba(255,255,255,0.035);
}

.bottom-nav {
    margin-top: clamp(46px, 6vw, 92px);
    padding-top: 22px;
    display: flex;
    justify-content: space-between;
    gap: 18px;
    border-top: 1px solid rgba(255,255,255,0.30);
}

.bottom-nav a {
    padding: 11px 18px;
    border: 1px solid rgba(255,255,255,0.72);
    background: rgba(0,0,0,0.54);
    color: #fff;
    font-weight: 800;
    text-decoration: none;
}

.bottom-nav a:hover,
.bottom-nav a:focus-visible {
    background: var(--manual-blue);
}

.site-footer {
    min-height: 64px;
    padding: 16px max(2.5%, 18px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--manual-deep);
    color: rgba(255,255,255,0.64);
    font-size: 0.84rem;
    line-height: 1.55;
    text-align: center;
}

@media (max-width: 980px) {
    .manual-title-bar {
        align-items: flex-start;
        flex-direction: column;
    }

    .manual-title-brand {
        width: 100%;
        justify-content: flex-start;
    }

    .manual-title-brand p {
        text-align: left;
    }

    .global-menu {
        justify-content: flex-start;
    }

    .content-module {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .content-copy {
        min-height: auto;
        padding-inline: 2px;
    }

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

@media (min-width: 621px) and (max-width: 1500px) {
    .global-menu > .menu-dropdown:last-of-type .menu-subpanel {
        right: calc(100% + 7px);
        left: auto;
        transform: translateX(7px);
    }

    .global-menu > .menu-dropdown:last-of-type .menu-subpanel::before {
        right: auto;
        left: 100%;
    }

    .global-menu > .menu-dropdown:last-of-type .menu-submenu:hover > .menu-subpanel,
    .global-menu > .menu-dropdown:last-of-type .menu-submenu:focus-within > .menu-subpanel,
    .global-menu > .menu-dropdown:last-of-type .menu-submenu.is-open > .menu-subpanel {
        transform: translateX(0);
    }
}

@media (max-width: 620px) {
    :root { --page-width: 92%; }

    .manual-title-wrap { padding-top: 12px; }
    .manual-title-bar { min-height: 0; padding: 20px; }

    .manual-title-brand {
        min-width: 0;
        align-items: flex-start;
        flex-direction: column;
    }

    .global-menu {
        display: grid;
        grid-template-columns: repeat(2,minmax(0,1fr));
    }

    .menu-card,
    .menu-dropdown,
    .menu-dropdown > .menu-card {
        width: 100%;
        min-width: 0;
    }

    .menu-panel {
        width: 100%;
        min-width: 0;
    }

    .menu-subpanel {
        position: static;
        display: none;
        margin-top: 2px;
        padding-left: 12px;
        opacity: 1;
        visibility: visible;
        transform: none;
        border: 0;
        border-left: 2px solid rgba(223,242,182,0.48);
        background: rgba(18,17,49,0.96);
    }

    .menu-subpanel::before {
        display: none;
    }

    .menu-submenu:hover > .menu-subpanel,
    .menu-submenu:focus-within > .menu-subpanel,
    .menu-submenu.is-open > .menu-subpanel {
        display: grid;
        transform: none;
    }

    .intro-panel,
    .directory-panel,
    .table-panel { padding: 20px; }

    .source-links { flex-direction: column; }
    .directory-grid { grid-template-columns: 1fr; }
    .steam-visual-links { grid-template-columns: 1fr; }
    .bottom-nav { flex-direction: column; }
    .bottom-nav a { text-align: center; }
}

@media (prefers-reduced-motion: no-preference) {
    .intro-panel,
    .content-module,
    .directory-panel,
    .table-panel {
        animation: moduleReveal 650ms ease-out both;
    }

    .content-module:nth-of-type(2) { animation-delay: 70ms; }
    .content-module:nth-of-type(3) { animation-delay: 130ms; }
    .content-module:nth-of-type(4) { animation-delay: 190ms; }
    .content-module:nth-of-type(5) { animation-delay: 250ms; }
    .content-module:nth-of-type(6) { animation-delay: 310ms; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}

@keyframes moduleReveal {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: translateY(0); }
}