:root {
    color-scheme: dark;
    --bg: #111;
    --panel: #1a1a1a;
    --text: #eee;
    --muted: #d7d7d7;
    --accent: #ffd46b;
    --link: #cfdfff;
    --border: rgba(255, 255, 255, 0.14);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    padding: clamp(1.25rem, 4vw, 3rem);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
}

.guide-page {
    width: min(860px, 100%);
    margin: 0 auto;
}

.language-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-bottom: 2rem;
}

.language-nav a {
    padding: 0.5rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 7px;
    color: var(--link);
    text-decoration: none;
    font-weight: 650;
    line-height: 1;
}

.language-nav a:hover,
.language-nav a:focus-visible {
    border-color: rgba(255, 212, 107, 0.55);
    color: #fff3c8;
    outline: none;
}

article {
    padding: clamp(1.25rem, 4vw, 2.25rem);
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--panel);
}

h1 {
    margin: 0 0 1rem;
    font-size: clamp(1.45rem, 2.4vw, 1.85rem);
    line-height: 1.12;
}

h2 {
    margin: 2rem 0 0.75rem;
    color: var(--accent);
    font-size: clamp(1.18rem, 2vw, 1.45rem);
    line-height: 1.25;
}

.platform-icons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin: 1.25rem 0 0.2rem;
}

.platform-icon {
    display: inline-flex;
    align-items: center;
    gap: 0.38rem;
    min-height: 2rem;
    padding: 0.38rem 0.62rem;
    border: 1px solid var(--border);
    border-radius: 7px;
    color: #f3f3f3;
    background: rgba(255, 255, 255, 0.06);
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1;
}

.platform-icon::before {
    content: "✓";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1rem;
    height: 1rem;
    color: #79d78a;
    font-size: 1rem;
    line-height: 1;
}

.deck-heading {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.deck-heading img {
    width: 5.45em;
    height: 3.05em;
    border-radius: 5px;
    flex: 0 0 auto;
    object-fit: contain;
    object-position: center;
}

p {
    margin: 0.75rem 0;
    color: var(--muted);
    font-size: clamp(1rem, 1vw + 0.9rem, 1.12rem);
    line-height: 1.75;
}

ul {
    margin: 0.75rem 0 1rem;
    padding-left: 1.35rem;
    color: var(--muted);
    font-size: clamp(1rem, 1vw + 0.9rem, 1.12rem);
    line-height: 1.75;
}

li {
    margin: 0.35rem 0;
}

.control-icon {
    display: inline-block;
    vertical-align: -0.35em;
    margin-right: 0.55rem;
}

.mouse-icon {
    position: relative;
    width: 1.6rem;
    height: 2.1rem;
    border: 2px solid rgba(255, 255, 255, 0.72);
    border-radius: 0.72rem;
    background: rgba(255, 255, 255, 0.06);
}

.mouse-icon::before {
    content: "";
    position: absolute;
    top: 0.12rem;
    left: 50%;
    width: 2px;
    height: 0.55rem;
    background: rgba(255, 255, 255, 0.42);
    transform: translateX(-50%);
}

.mouse-icon::after {
    content: "";
    position: absolute;
    top: 0.76rem;
    left: 50%;
    width: 0.28rem;
    height: 0.5rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.5);
    transform: translateX(-50%);
}

.mouse-icon span {
    position: absolute;
    top: 0.12rem;
    height: 0.62rem;
    background: var(--accent);
}

.mouse-icon.left-button span {
    left: 0.18rem;
    width: 0.54rem;
    border-radius: 0.45rem 0 0.12rem 0;
}

.mouse-icon.right-button span {
    right: 0.18rem;
    width: 0.54rem;
    border-radius: 0 0.45rem 0 0.12rem;
}

.mouse-icon.wheel-button span {
    left: 50%;
    width: 0.28rem;
    height: 0.68rem;
    border-radius: 999px;
    transform: translateX(-50%);
}

.progress-icon {
    position: relative;
    width: 1.65rem;
    height: 1.65rem;
    border-radius: 50%;
    background:
        conic-gradient(var(--accent) 0 270deg, rgba(255, 255, 255, 0.2) 270deg 360deg);
}

.progress-icon::after {
    content: "";
    position: absolute;
    inset: 0.32rem;
    border-radius: 50%;
    background: var(--panel);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.hover-stone-icon {
    position: relative;
    width: 2.25rem;
    height: 2.1rem;
}

.hover-stone-icon::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.22rem;
    width: 1.15rem;
    height: 1.15rem;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 32%, #ffffff 0 18%, #daddea 45%, #9ca3ba 100%);
    box-shadow:
        0 0 0 2px rgba(255, 212, 107, 0.62),
        0 0 10px rgba(255, 212, 107, 0.38);
}

.hover-stone-icon span {
    position: absolute;
    right: 0;
    bottom: 0.08rem;
    width: 0.9rem;
    height: 0.9rem;
    background-color: #fff;
    clip-path: polygon(0 0, 0 100%, 32% 73%, 50% 100%, 66% 90%, 48% 64%, 100% 64%);
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.65));
}

.deck-control {
    position: relative;
    width: 2.5rem;
    height: 1.75rem;
    border: 1px solid rgba(255, 255, 255, 0.42);
    border-radius: 0.42rem;
    background: rgba(255, 255, 255, 0.07);
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.28);
}

.deck-control::before,
.deck-control::after {
    position: absolute;
    box-sizing: border-box;
}

.deck-screen-tap::before,
.deck-screen-rotate::before {
    content: "";
    inset: 0.35rem 0.42rem;
    border: 2px solid rgba(255, 255, 255, 0.78);
    border-radius: 0.12rem;
}

.deck-l2-touch::after {
    content: "";
    right: 0.28rem;
    top: 0.35rem;
    width: 1.15rem;
    height: 0.8rem;
    border: 2px solid rgba(255, 255, 255, 0.78);
    border-radius: 0.12rem;
}

.deck-screen-tap::after {
    content: "";
    right: 0.28rem;
    bottom: 0.18rem;
    width: 0.72rem;
    height: 0.72rem;
    background-color: var(--accent);
    clip-path: polygon(0 0, 0 100%, 32% 73%, 50% 100%, 66% 90%, 48% 64%, 100% 64%);
    filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.6));
}

.deck-screen-rotate::after {
    content: "↻";
    right: 0.22rem;
    bottom: 0.06rem;
    color: var(--accent);
    font-size: 0.95rem;
    font-weight: 800;
    line-height: 1;
}

.deck-shoulders {
    width: 3.15rem;
}

.deck-shoulders::before {
    content: "L1";
    left: 0.18rem;
    top: 0.32rem;
}

.deck-shoulders::after {
    content: "R1";
    right: 0.18rem;
    top: 0.32rem;
}

.deck-l2-touch {
    width: 3.65rem;
}

.deck-l2-touch::before {
    content: "L2";
    left: 0.18rem;
    top: 0.34rem;
    width: 1.25rem;
    height: 1rem;
    border: 1px solid rgba(255, 212, 107, 0.74);
    border-radius: 0.28rem;
    background: rgba(255, 212, 107, 0.12);
    text-align: center;
    padding-top: 0.13rem;
}

.deck-touchpad::before {
    content: "";
    left: 0.72rem;
    top: 0.34rem;
    width: 1.1rem;
    height: 1.1rem;
    border: 2px solid rgba(255, 255, 255, 0.78);
    border-radius: 0.22rem;
    background: rgba(255, 212, 107, 0.18);
}

.deck-r2::before {
    content: "R2";
    left: 50%;
    top: 50%;
    width: 1.25rem;
    height: 1rem;
    border: 1px solid rgba(255, 212, 107, 0.74);
    border-radius: 0.28rem;
    background: rgba(255, 212, 107, 0.12);
    text-align: center;
    padding-top: 0.13rem;
    transform: translate(-50%, -50%);
}

.deck-shoulders::before,
.deck-shoulders::after,
.deck-l2-touch::before,
.deck-r2::before {
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 850;
    line-height: 1;
}

strong {
    color: #fff;
}

@media (max-width: 520px) {
    article {
        padding: 1rem;
    }

    .language-nav a {
        flex: 1 1 auto;
        text-align: center;
    }
}