*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

@font-face {
    font-family: "Noto Sans", sans-serif;
}

.site-footer {
    background-color: #2c3565;
    color: #63c8ea;
    padding: 48px 32px 36px;
    margin-top: 64px;
    text-align: center;
    border-top: 1px solid #2a4a60;
}

.site-footer .footer-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.site-footer .footer-brand {
    font-size: 1.3rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 8px;
    letter-spacing: 0.02em;
}

.site-footer p {
    margin: 0;
    font-size: 0.92rem;
    color: #8ad8ff;
    line-height: 1.6;
}

.site-footer .footer-divider {
    width: 48px;
    height: 2px;
    background: #fff7f0;
    border: none;
    border-radius: 2px;
    margin: 16px 0;
}

.site-footer a {
    text-decoration: none;
    font-size: 2rem;
    color: #ede6df;
}

.site-footer .footer-copy {
    font-size: 0.82rem;
    color: #fff7f0;
    margin-top: 8px;
}

.install-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 32px;
    border-bottom-left-radius: 16px;
    border-bottom-right-radius: 16px;
}

.install-section h2 {
    font-size: 2.8rem;
    color: #2f3b73;
    margin-bottom: 16px;
}

.install-text {
    max-width: 700px;
    margin: 0 auto 40px;
    font-size: 1.2rem;
    line-height: 1.7;
    color: #4a5568;
}

.install-box {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #fffbf7;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    background: white;
    text-align: left;
    box-sizing: border-box;
}

.install-tabs {
    display: flex;
    background: #d9d9d9;
}

.tab-button {
    flex: 1;
    padding: 14px 18px;
    border: none;
    background: #dedad7;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    color: #333;
}

.tab-button.active {
    background: #fffcfa;
    color: #111;
}

.tab-content {
    display: none;
    padding: 30px 20px;
    background: #1d2547;
    FONT-family: monospace;
    font-size: 1.1rem;
}

.tab-content.active {
    display: block;
}

.tab-content code {
    display: block;
    background: transparent;
    color: #7cf352;
    font-family: "JetBrains Mono", monospace;
    white-space: pre-wrap;
    word-break: break-word;
}

.features {
    display: grid;
    gap: 40px;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    padding: clamp(48px, 6vw, 96px) clamp(48px, 10vw, 160px);
    max-width: 1100px;
    margin: 0 auto;
    box-sizing: border-box;
    width: 100%;
}

.features article {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.features article img {
    width: 56px;
    height: 56px;
    object-fit: contain;
}

.feature-icon {
    font-size: 56px;
    margin-bottom: 16px;
    color: #2f3b73;
    display: block;
}

.features h3 {
    font-size: 22px;
    margin-bottom: 14px;
    color: #2f3b73;
}

.features p {
    font-size: 17px;
    line-height: 1.6;
    color: #334;
}

img {
    max-width: 100%;
}

body {
    background: #fff7f0;
    color: #2c3565;
    font-family: "Noto Sans", Arial, Helvetica, sans-serif;
    margin: 0;
    overflow-x: hidden;
}

h1 {
    font-size: 35pt;
    font-weight: 800;
}

h2 {
    font-size: 20pt;
    font-weight: 700;
    color: #307da8
}

h3 {
    font-size: 35pt;
    font-weight: 600;
}
.hori {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 64px 0;
    @media only screen and (max-width: 1280px) {
        flex-direction: column;
        margin: 32px 0;
    }
}
h2.motto {
    @media only screen and (max-width: 1280px) {text-align: center;}
}
h2.reverse {
    @media only screen and (min-width: 1281px) {margin-right: 100px; text-align: right;}
}

img {
    width: 100px;
    margin-bottom: 20px;
}

p {
    font-size: 15pt;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: #377375;
}

#banner {
    background-image: linear-gradient(#9be0f0, #5bc5e9);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 64px 32px 72px;
    border-bottom-left-radius: 16px;
    border-bottom-right-radius: 16px;
    gap: 0;
}

#banner * {
    margin: 0;
}

#banner img {
    width: 240px;
    margin-bottom: 20px;
}

#banner h1 {
    margin-bottom: 10px;
}

#banner h2 {
    margin-bottom: 28px;
    color: #1e4f6b;
    font-weight: 500;
}

section {
    margin: 32px auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 100%;
    padding: 0 16px;
}

section p {
    width: 85%;
    max-width: 640px;
}

.about {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    padding: 60px 20px;
}

.hori-small {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 16px 0;
    @media only screen and (max-width: 1280px) {
        flex-direction: column-reverse;
    }
}
code {
    background-color: #c8ddd2;
    padding-inline: 8px;
    border-radius: 24px;
}

hr {
    width: 50vw;
    max-width: 540px;
}


.button {
    background: #fff7f0;
    color: black;
    padding: 15px;
    border-radius: 24px;
      transition: background 0.25s cubic-bezier(0.075, 0.82, 0.165, 1),
                  box-shadow 0.25s cubic-bezier(0.075, 0.82, 0.165, 1),
                  scale 0.16s cubic-bezier(0.075, 0.82, 0.165, 1);
}

.button:hover {
    background: #fff7f0;
    cursor: pointer;
    box-shadow: 5px 5px 5px #418da6;
    scale: 1.03;
}

.or {
    margin: 16px;
}