:root {
    --primary-color: #004d99;
    --primary-light: #e6f0ff;
    --secondary-color: #f8f9fa;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #dddddd;
    --danger-color: #d9534f;
    --danger-light: #fdf0f0;
    --white: #ffffff;
    --max-width: 1000px;
}

.dark {
    --primary-color: #74a9ff;
    --primary-light: rgba(116, 169, 255, 0.12);
    --secondary-color: #071026;
    --white: #0b1220;
    --text-color: #e6eef8;
    --text-light: #9fb3d6;
    --border-color: rgba(255, 255, 255, 0.06);
    --danger-color: #ff6b6b;
    --danger-light: rgba(255, 107, 107, 0.08);
}

.theme-toggle {
    position: absolute;
    right: 1.25rem;
    top: 1.25rem;
    z-index: 105;
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.theme-toggle:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

html, body, header, main, footer, section {
    transition: background-color 0.22s ease, color 0.22s ease, border-color 0.22s ease;
}

html.header-initializing header,
html.header-initializing .header-container,
html.header-initializing .logo-area,
html.header-initializing .main-nav,
html.header-initializing .main-nav ul,
html.header-initializing .main-nav ul li a,
html.header-initializing .site-logo,
html.header-initializing .logo-text {
    transition: none !important;
}

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

body {
    overflow-anchor: none;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--secondary-color);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #003366;
    text-decoration: underline;
}

header {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: transform 0.28s ease, box-shadow 0.28s ease, max-height 0.34s ease, padding 0.34s ease;
    will-change: transform;
    backface-visibility: hidden;
    overflow: hidden;
}

header.header-hidden {
    transform: translateY(-100%);
}

header.desktop-nav-only .header-container {
    padding-top: 0.35rem;
    padding-bottom: 0.35rem;
    align-items: center;
    justify-content: center;
}

/* Make the collapsed desktop header compact and vertically center the nav */
header.desktop-nav-only {
    padding-top: 0;
    padding-bottom: 0;
}

header.desktop-nav-only .header-container {
    min-height: 56px;
    padding-top: 0.2rem;
    padding-bottom: 0.2rem;
    align-items: center;
    justify-content: center;
}

header.desktop-nav-only .logo-area {
    opacity: 0;
    transform: translateY(-0.55rem) scale(0.985);
    max-width: 0;
    max-height: 0;
    margin-right: 0;
    padding-right: 0;
    gap: 0;
    pointer-events: none;
}

header.desktop-nav-only .site-logo,
header.desktop-nav-only .logo-text {
    opacity: 0;
    transform: translateY(-0.35rem);
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    position: relative;
    transition: padding 0.34s ease, gap 0.34s ease, max-height 0.34s ease;
}

/* Center nav in normal desktop header while keeping logo left */
@media (min-width: 851px) {
    /* On desktop: put logo/title on its own row and center the nav below it */
    .header-container {
        position: relative;
        flex-wrap: wrap;
        align-items: center;
    }

    header {
        max-height: 180px;
    }

    header.desktop-nav-only {
        max-height: 82px;
    }

    .logo-area {
        flex: 1 1 100%;
        display: flex;
        align-items: center;
        justify-content: flex-start;
        max-height: 120px;
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.34s ease, transform 0.34s ease, max-height 0.34s ease, margin 0.34s ease, padding 0.34s ease, gap 0.34s ease;
    }

    .main-nav {
        position: static;
        transform: translateY(0);
        order: 2;
        width: 100%;
        display: flex;
        justify-content: center;
        margin-top: -0.15rem;
        opacity: 1;
        transition: opacity 0.34s ease, transform 0.34s ease, margin-top 0.34s ease;
    }

    .menu-toggle {
        position: absolute;
        right: 2rem;
        top: 1.25rem;
    }
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    min-width: 0;
    overflow: hidden;
    max-height: 140px;
    min-height: 56px;
    transition: opacity 0.28s ease, transform 0.28s ease, max-width 0.28s ease, max-height 0.28s ease, margin 0.28s ease, padding 0.28s ease, gap 0.28s ease;
}

.site-logo {
    max-height: 104px;
    width: auto;
    flex-shrink: 0;
    transition: max-height 0.28s ease, opacity 0.28s ease, transform 0.28s ease;
    display: block;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: opacity 0.28s ease, transform 0.28s ease;
}

.logo-text h1 {
    color: var(--primary-color);
    font-size: 2rem;
    letter-spacing: 0.5px;
    line-height: 1.08;
    margin-bottom: 0.2rem;
}

.logo-text p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.2;
}

.menu-toggle {
    display: none;
    position: relative;
    width: 44px;
    height: 36px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 101;
}

.menu-toggle span {
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    height: 5px;
    background-color: var(--primary-color);
    border-radius: 999px;
    transition-property: transform, opacity, top, bottom;
    transition-duration: 150ms;
    transition-timing-function: cubic-bezier(0.8, 0.5, 0.2, 1.4);
    transform-origin: center;
}

.menu-toggle span:nth-child(1) {
    top: 0;
    transform: translateY(0);
}

.menu-toggle span:nth-child(2) {
    transform: translateY(-50%);
}

.menu-toggle span:nth-child(3) {
    top: auto;
    bottom: 0;
    transform: translateY(0);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(-50%) rotate(45deg);
    top: 50%;
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateY(-50%) scaleX(0);
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-50%) rotate(-45deg);
    top: 50%;
    bottom: auto;
}

.main-nav {
    margin-left: auto;
    display: flex;
    align-items: center;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.main-nav ul li a {
    display: inline-flex;
    align-items: center;
    color: var(--text-color);
    font-weight: 500;
    text-decoration: none;
    padding: 0.6rem 0.9rem;
    line-height: 1.1;
    border-radius: 6px;
    transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.main-nav ul li a:hover,
.main-nav ul li a.active {
    color: var(--primary-color);
    background-color: var(--primary-light);
    text-decoration: none;
}

header.desktop-nav-only .main-nav {
    align-items: center;
    margin-left: 0;
    justify-content: center;
    width: auto;
}

header.desktop-nav-only .main-nav {
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    align-self: center;
    margin-top: 0.22rem;
    margin-bottom: 0;
    opacity: 1;
    transform: translateX(-0.5rem) translateY(0.12rem);
}

header.desktop-nav-only .main-nav ul {
    gap: 0.6rem;
    justify-content: center;
    align-items: center;
}

header.desktop-nav-only .main-nav ul {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
}

header.desktop-nav-only .main-nav ul li a {
    padding: 0.3rem 0.7rem;
    font-size: 0.96rem;
}

header.desktop-nav-only .main-nav ul li a {
    padding-top: 0.2rem;
    padding-bottom: 0.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: auto;
}

.alert-banner {
    background-color: var(--danger-light);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
    padding: 1rem 2rem;
    max-width: var(--max-width);
    margin: 2rem auto;
    border-radius: 4px;
    font-weight: 500;
}

.alert-banner strong {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

main {
    max-width: var(--max-width);
    margin: 2rem auto;
    padding: 0 2rem;
    min-height: calc(100vh - 300px);
}

section {
    background-color: var(--white);
    padding: 2.5rem;
    margin-bottom: 2rem;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-light);
}

h3 {
    color: #444;
    margin: 1.5rem 0 1rem;
}

p, ul {
    margin-bottom: 1rem;
}

ul {
    padding-left: 1.5rem;
}

ul li {
    margin-bottom: 0.5rem;
}

.button {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    margin-top: 1rem;
}

.button:hover {
    background-color: #003366;
    color: var(--white);
    text-decoration: none;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.value-card {
    background: var(--primary-light);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.value-card h4 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.footer-col h3 {
    color: var(--white);
    border-bottom: none;
    margin-top: 0;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li a {
    color: #b3d9ff;
    text-decoration: none;
}

.footer-links li a:hover {
    color: var(--white);
    text-decoration: underline;
}

.copyright {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: #b3d9ff;
}

.legal-text h3 {
    margin-top: 2rem;
}

.legal-text strong {
    color: #222;
}

.page-hero {
    background: linear-gradient(135deg, var(--primary-light), #ffffff 60%);
    border: 1px solid rgba(0, 77, 153, 0.12);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.page-hero h2 {
    margin-bottom: 0.75rem;
}

.page-hero p:last-child {
    margin-bottom: 0;
}

.two-column-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
    gap: 2rem;
    align-items: start;
}

.content-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.content-card h3 {
    margin-top: 0;
}

.legal-text {
    max-width: 860px;
    margin: 0 auto;
}

.legal-text p,
.legal-text ul {
    max-width: 100%;
}

.legal-text h4 {
    color: #444;
    margin: 1.25rem 0 0.75rem;
}

.feature-list {
    list-style: none;
    padding-left: 0;
}

.feature-list li {
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--border-color);
}

.feature-list li:last-child {
    border-bottom: none;
}

.split-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.notice-box {
    border-left: 4px solid var(--primary-color);
    background: var(--primary-light);
    padding: 1rem 1.25rem;
    border-radius: 8px;
}

@media (max-width: 850px) {
    main {
        padding: 0 1rem;
    }

    section {
        padding: 1.4rem 1.1rem;
        margin-bottom: 1.25rem;
    }

    .page-hero {
        padding: 1.25rem 1.1rem;
    }

    .values-grid,
    .two-column-layout {
        grid-template-columns: 1fr;
        gap: 1rem;
        width: 100%;
    }

    .content-card,
    .notice-box {
        width: 100%;
    }

    .notice-box {
        border-left-width: 4px;
    }

    .header-container {
        align-items: flex-start;
        padding-right: 1rem;
    }

    header {
        z-index: 300;
    }

    header.desktop-nav-only .logo-area {
        opacity: 1;
        transform: none;
        max-width: none;
        margin-right: 0;
        padding-right: 0;
        gap: 1.5rem;
        pointer-events: auto;
    }

    header.desktop-nav-only .header-container {
        padding-top: 1rem;
        padding-bottom: 1rem;
    }

    .menu-toggle {
        display: flex;
        position: absolute;
        top: 1.35rem;
        right: 1rem;
        margin: 0;
        transform: none;
        z-index: 320;
    }

    .main-nav {
        width: 100%;
        margin-top: 0;
        padding: 0 0 0.25rem;
        flex-basis: 100%;
        order: 3;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transform: translateY(-0.35rem) scaleY(0.98);
        transform-origin: top center;
        transition: max-height 0.42s cubic-bezier(0.2, 0.9, 0.2, 1), opacity 0.24s ease, transform 0.32s cubic-bezier(0.2, 0.9, 0.2, 1);
        pointer-events: none;
    }

    .main-nav.active {
        max-height: 480px;
        opacity: 1;
        transform: translateY(0) scaleY(1);
        pointer-events: auto;
        margin-top: 0.5rem;
        padding: 0.45rem 1rem 0.75rem;
        background-color: var(--white);
        border: 1px solid var(--border-color);
        border-radius: 14px;
        box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0.5rem;
        padding-top: 0;
        padding-left: 0;
        width: 100%;
        align-items: center;
    }

    .main-nav ul li {
        width: 100%;
        max-width: 560px;
    }

    .main-nav ul li a {
        display: flex;
        width: 100%;
        justify-content: center;
        align-items: center;
        text-align: center;
        padding: 1rem clamp(1.15rem, 5vw, 1.75rem);
        border: 1px solid var(--border-color);
        background-color: var(--secondary-color);
        box-sizing: border-box;
        font-size: 1.05rem;
        min-width: 0;
        transition: background-color 0.22s ease, border-color 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease;
    }

    .main-nav ul li a:hover,
    .main-nav ul li a.active {
        border-color: var(--primary-color);
        background-color: var(--primary-light);
        transform: translateY(-1px);
        box-shadow: 0 4px 10px rgba(0, 77, 153, 0.08);
    }

    .two-column-layout {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .two-column-layout .content-card {
        width: 100%;
    }

    .two-column-layout .content-card + .content-card {
        margin-top: 0;
    }

    .two-column-layout .content-card h3 {
        word-break: normal;
        overflow-wrap: anywhere;
    }

    .logo-text h1 {
        font-size: 1.6rem;
    }

    .site-logo {
        max-height: 74px;
    }

    .footer-container {
        grid-template-columns: 1fr;
    }
}