:root {
    --guide-keep: #4dff88;
    --guide-kick: #ff4d4d;
    --guide-pink: #ffd1e6;
    --guide-ink: rgba(10, 12, 20, 0.84);
    --guide-card: linear-gradient(145deg, rgba(19, 23, 36, 0.92), rgba(10, 12, 20, 0.8));
    --guide-border: rgba(255, 255, 255, 0.12);
    --guide-text: #f8f7fb;
    --guide-muted: rgba(248, 247, 251, 0.76);
    --guide-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    --font-primary: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    background: transparent;
    color: var(--guide-text);
    font-family: var(--font-primary);
}

body {
    overflow-x: hidden;
    overflow-y: auto;
}

code {
    font-family: "Consolas", "Courier New", monospace;
}

.guide-stage {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    background:
        radial-gradient(circle at 20% 18%, rgba(77, 255, 136, 0.14), transparent 30%),
        radial-gradient(circle at 82% 20%, rgba(255, 77, 77, 0.16), transparent 28%),
        radial-gradient(circle at 50% 50%, rgba(255, 209, 230, 0.08), transparent 34%);
}

.guide-stage::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.04), transparent 32%),
        linear-gradient(320deg, rgba(255, 255, 255, 0.03), transparent 26%);
    pointer-events: none;
}

.guide-ambient {
    position: absolute;
    width: 36vw;
    aspect-ratio: 1;
    border-radius: 999px;
    filter: blur(80px);
    opacity: 0.45;
    animation: floatGlow 10s ease-in-out infinite;
    pointer-events: none;
}

.guide-ambient-keep {
    top: -8vw;
    left: -6vw;
    background: rgba(77, 255, 136, 0.26);
}

.guide-ambient-kick {
    right: -6vw;
    bottom: -10vw;
    background: rgba(255, 77, 77, 0.26);
    animation-delay: -5s;
}

.guide-shell {
    position: relative;
    z-index: 1;
    width: min(1700px, calc(100vw - 64px));
    margin: 0 auto;
    padding: 34px 0;
}

.hero-card,
.guide-card {
    background: var(--guide-card);
    border: 1px solid var(--guide-border);
    border-radius: 28px;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: var(--guide-shadow);
}

.hero-card {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(360px, 0.9fr);
    gap: 28px;
    padding: 28px;
    margin-bottom: 26px;
    min-height: 360px;
}

.hero-copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-eyebrow {
    display: inline-flex;
    align-self: flex-start;
    padding: 8px 14px;
    margin-bottom: 16px;
    border-radius: 999px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--guide-pink);
    background: rgba(255, 209, 230, 0.12);
    border: 1px solid rgba(255, 209, 230, 0.24);
}

.hero-copy h1 {
    margin: 0 0 12px;
    font-size: clamp(2.4rem, 4vw, 4.4rem);
    line-height: 0.98;
    letter-spacing: -0.04em;
}

.hero-summary {
    margin: 0;
    max-width: 760px;
    font-size: clamp(1.02rem, 1.8vw, 1.35rem);
    line-height: 1.55;
    color: var(--guide-muted);
}

.keep-text {
    color: var(--guide-keep);
    font-weight: 800;
}

.kick-text {
    color: var(--guide-kick);
    font-weight: 800;
}

.hero-badges {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 26px;
}

.hero-badge {
    position: relative;
    padding: 16px 18px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.hero-badge::after {
    content: "";
    position: absolute;
    inset: auto -35% -55% auto;
    width: 170px;
    height: 170px;
    border-radius: 999px;
    opacity: 0.14;
    pointer-events: none;
}

.keep-badge::after {
    background: var(--guide-keep);
}

.kick-badge::after {
    background: var(--guide-kick);
}

.badge-label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: rgba(248, 247, 251, 0.62);
}

.hero-badge strong {
    display: block;
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    line-height: 1.3;
}

.hero-visual {
    position: relative;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scale-frame {
    position: relative;
    width: min(100%, 470px);
    padding: 28px;
    border-radius: 30px;
    background:
        radial-gradient(circle at 50% 50%, rgba(255, 209, 230, 0.14), transparent 52%),
        rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.scale-frame img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 18px 24px rgba(0, 0, 0, 0.32));
}

.visual-callout {
    position: absolute;
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(7, 10, 18, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    min-width: 120px;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.35);
}

.visual-callout span {
    display: block;
    margin-bottom: 5px;
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(248, 247, 251, 0.65);
}

.visual-callout strong {
    font-size: 1.35rem;
    letter-spacing: 0.08em;
}

.visual-callout-keep {
    left: -6px;
    top: 18px;
}

.visual-callout-keep strong {
    color: var(--guide-keep);
}

.visual-callout-kick {
    right: -6px;
    bottom: 18px;
}

.visual-callout-kick strong {
    color: var(--guide-kick);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.guide-card {
    position: relative;
    padding: 24px 24px 26px;
    min-height: 340px;
}

.card-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    margin-bottom: 14px;
    border-radius: 14px;
    font-size: 1.1rem;
    font-weight: 900;
    color: #081016;
    background: linear-gradient(135deg, var(--guide-pink), #ffffff);
}

.guide-card h2 {
    margin: 0 0 16px;
    font-size: 1.6rem;
    line-height: 1.15;
}

.guide-list {
    display: grid;
    gap: 14px;
    margin: 0;
    padding-left: 20px;
    color: var(--guide-muted);
    font-size: 1.02rem;
    line-height: 1.6;
}

.guide-list li::marker {
    color: var(--guide-pink);
}

.command-group + .command-group {
    margin-top: 18px;
}

.command-label {
    margin-bottom: 10px;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(248, 247, 251, 0.62);
}

.command-list {
    display: grid;
    gap: 12px;
}

.command-row {
    display: grid;
    grid-template-columns: minmax(150px, auto) minmax(0, 1fr);
    gap: 14px;
    align-items: center;
}

.command-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--guide-text);
    font-size: 0.98rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.command-chip.keep-chip {
    border-color: rgba(77, 255, 136, 0.28);
    color: var(--guide-keep);
}

.command-chip.kick-chip {
    border-color: rgba(255, 77, 77, 0.28);
    color: var(--guide-kick);
}

.command-description {
    color: var(--guide-muted);
    font-size: 0.96rem;
    line-height: 1.55;
}

.timeline {
    display: grid;
    gap: 16px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 18px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
}

.timeline-dot {
    position: relative;
    width: 14px;
    height: 14px;
    margin-top: 7px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--guide-pink), #fff);
    box-shadow: 0 0 22px rgba(255, 209, 230, 0.42);
}

.timeline-dot::after {
    content: "";
    position: absolute;
    left: 50%;
    top: calc(100% + 8px);
    width: 2px;
    height: calc(100% + 32px);
    transform: translateX(-50%);
    background: linear-gradient(180deg, rgba(255, 209, 230, 0.36), rgba(255, 209, 230, 0));
}

.timeline-item:last-child .timeline-dot::after {
    display: none;
}

.timeline-item strong {
    display: block;
    margin-bottom: 6px;
    font-size: 1.03rem;
}

.timeline-item p {
    margin: 0;
    color: var(--guide-muted);
    font-size: 0.98rem;
    line-height: 1.55;
}

@keyframes floatGlow {
    0%,
    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }

    50% {
        transform: translate3d(0, 24px, 0) scale(1.06);
    }
}

@media (max-width: 1280px) {
    body {
        overflow: auto;
    }

    .guide-shell {
        width: min(100vw - 32px, 1200px);
        padding: 16px 0 24px;
    }

    .hero-card {
        grid-template-columns: 1fr;
    }

    .guide-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .hero-card,
    .guide-card {
        border-radius: 22px;
    }

    .hero-card,
    .guide-card {
        padding: 20px;
    }

    .hero-badges {
        grid-template-columns: 1fr;
    }

    .hero-summary,
    .guide-list,
    .timeline-item p,
    .command-description {
        font-size: 0.95rem;
    }

    .command-row {
        grid-template-columns: 1fr;
        gap: 10px;
        align-items: start;
    }

    .command-chip {
        justify-self: start;
    }

    .visual-callout {
        position: static;
        margin-top: 12px;
    }

    .hero-visual {
        display: block;
    }

    .scale-frame {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .guide-ambient {
        animation: none;
    }
}