.guide {
    --guide-cyan: #00f2ff;
    --guide-mint: #00f5d4;
    --guide-yellow: #ffd166;
    --guide-text: #f8fafc;
    --guide-muted: #a9bbc9;
    --guide-panel: rgba(6, 19, 31, .86);
    max-width: 1240px;
    margin: 0 auto;
    color: var(--guide-text);
}

.guide *, .guide *::before, .guide *::after { box-sizing: border-box; }
.guide p { color: var(--guide-muted) !important; font-size: 1rem; line-height: 1.75; text-shadow: none; }
.guide h1, .guide h2, .guide h3 { border: 0 !important; padding: 0; }
.guide h2 { margin: 0; font-size: clamp(1.55rem, 3vw, 2.2rem); }
.guide h3 { font-size: 1.05rem; }

.guide-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: center;
    min-height: 390px;
    padding: clamp(28px, 6vw, 72px);
    overflow: hidden;
    border: 1px solid rgba(0, 242, 255, .28);
    border-radius: 28px;
    background:
        radial-gradient(circle at 80% 50%, rgba(0, 242, 255, .16), transparent 30%),
        linear-gradient(135deg, rgba(5, 33, 47, .98), rgba(6, 13, 27, .98));
    box-shadow: 0 24px 70px rgba(0, 0, 0, .35), inset 0 0 55px rgba(0, 242, 255, .04);
}

.guide-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    opacity: .35;
    background-image: radial-gradient(circle, #fff 0 1px, transparent 1.5px);
    background-size: 47px 47px;
    mask-image: linear-gradient(90deg, transparent 20%, #000);
}

.guide-hero-copy { position: relative; z-index: 2; max-width: 730px; }
.guide-kicker { color: var(--guide-mint); font-size: .78rem; font-weight: 800; letter-spacing: .2em; }
.guide-hero h1 { margin: 14px 0 18px; font-size: clamp(2.1rem, 5vw, 4rem); line-height: 1.08; }
.guide-hero p { max-width: 690px; margin-bottom: 28px; font-size: 1.12rem; }
.guide-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.guide a.guide-button {
    padding: 12px 20px;
    border: 1px solid var(--guide-cyan);
    border-radius: 10px;
    background: var(--guide-cyan);
    color: #03131d !important;
    font-weight: 800;
    text-decoration: none;
    box-shadow: 0 0 24px rgba(0, 242, 255, .22);
}
.guide a.guide-button-secondary { background: transparent; color: var(--guide-text) !important; }

.guide-orbit { position: relative; z-index: 1; width: 250px; height: 250px; }
.guide-orbit-core { position: absolute; inset: 76px; display: grid; place-items: center; border: 1px solid var(--guide-cyan); border-radius: 50%; color: var(--guide-cyan); font-weight: 900; letter-spacing: .12em; box-shadow: 0 0 30px rgba(0, 242, 255, .35), inset 0 0 20px rgba(0, 242, 255, .2); }
.guide-orbit-ring { position: absolute; border: 1px solid rgba(0, 242, 255, .3); border-radius: 50%; transform: rotate(-20deg); }
.guide-orbit-ring-one { inset: 35px 10px; }
.guide-orbit-ring-two { inset: 10px 35px; transform: rotate(55deg); }
.guide-orbit-dot { position: absolute; width: 9px; height: 9px; border-radius: 50%; background: var(--guide-yellow); box-shadow: 0 0 15px var(--guide-yellow); }
.guide-orbit-dot-one { top: 48px; right: 44px; }
.guide-orbit-dot-two { bottom: 47px; left: 40px; background: var(--guide-mint); box-shadow: 0 0 15px var(--guide-mint); }

.guide-layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 34px; margin-top: 34px; align-items: start; }
.guide-nav { position: sticky; top: 20px; display: flex; flex-direction: column; padding: 20px; border: 1px solid rgba(0, 242, 255, .18); border-radius: 16px; background: rgba(4, 17, 29, .8); }
.guide-nav strong { margin-bottom: 12px; color: var(--guide-text); font-size: .85rem; letter-spacing: .05em; }
.guide .guide-nav a { display: flex; gap: 10px; padding: 9px 4px; border: 0; color: var(--guide-muted) !important; font-size: .88rem; }
.guide .guide-nav a:hover { color: var(--guide-cyan) !important; transform: translateX(3px); }
.guide-nav a span { color: var(--guide-mint); font-size: .72rem; font-weight: 800; }
.guide-content { min-width: 0; }

.guide-section { scroll-margin-top: 24px; margin-bottom: 28px; padding: clamp(24px, 4vw, 42px); border: 1px solid rgba(0, 242, 255, .17); border-radius: 20px; background: var(--guide-panel); box-shadow: 0 14px 35px rgba(0, 0, 0, .2); }
.guide-section-accent { border-color: rgba(0, 245, 212, .42); box-shadow: 0 0 35px rgba(0, 245, 212, .08); }
.guide-heading { display: flex; gap: 15px; align-items: center; margin-bottom: 25px; }
.guide-heading > span { display: grid; flex: 0 0 48px; width: 48px; height: 48px; place-items: center; border: 1px solid rgba(0, 242, 255, .5); border-radius: 12px; color: var(--guide-cyan); font-weight: 900; }
.guide-heading p { margin: 0 0 3px; color: var(--guide-mint) !important; font-size: .7rem; font-weight: 800; letter-spacing: .15em; }
.guide-heading h2 { color: var(--guide-text) !important; }
.guide-lead { font-size: 1.1rem !important; }
.guide-subtitle { margin: 32px 0 15px; color: var(--guide-text) !important; font-size: 1.2rem !important; }

.guide-step-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.guide-step-grid article, .guide-panel, .guide-definition-grid article, .guide-settings-list article { padding: 18px; border: 1px solid rgba(0, 242, 255, .14); border-radius: 14px; background: rgba(255, 255, 255, .025); }
.guide-step-grid b { display: grid; width: 32px; height: 32px; place-items: center; margin-bottom: 15px; border-radius: 50%; background: rgba(0, 242, 255, .12); color: var(--guide-cyan); }
.guide-step-grid h3, .guide-panel h3, .guide-feature-grid h3 { margin: 0 0 7px; color: var(--guide-text) !important; }
.guide-step-grid p, .guide-panel p { margin: 0; font-size: .9rem; }

.guide-tip, .guide-warning, .guide-info, .guide-note { margin-top: 22px; padding: 16px 18px; border-left: 3px solid var(--guide-mint); border-radius: 0 10px 10px 0; background: rgba(0, 245, 212, .07); }
.guide-tip { display: flex; gap: 13px; align-items: baseline; }
.guide-tip span { color: var(--guide-mint); font-weight: 800; text-transform: uppercase; }
.guide-tip p, .guide-warning p, .guide-info p, .guide-note { margin: 0; }
.guide-warning { border-color: var(--guide-yellow); background: rgba(255, 209, 102, .07); }
.guide-warning strong { color: var(--guide-yellow); }
.guide-info strong { display: block; margin-bottom: 4px; color: var(--guide-mint); }

.guide-feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 22px; }
.guide-feature-grid article { display: flex; gap: 14px; padding: 18px; border-radius: 14px; background: rgba(0, 242, 255, .055); }
.guide-feature-grid article > span { color: var(--guide-cyan); font-size: 1.4rem; }
.guide-feature-grid p { margin: 0; font-size: .92rem; }
.guide-two-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.guide-panel-icon { display: block; margin-bottom: 12px; font-size: 1.7rem; }
.guide ul { margin: 12px 0 0; padding-left: 1.2rem; color: var(--guide-muted); }
.guide li { margin-bottom: 8px; line-height: 1.55; }

.guide-formula { display: grid; grid-template-columns: 1fr auto 1fr; gap: 16px; align-items: center; margin-top: 18px; padding: 18px; border-radius: 14px; background: linear-gradient(90deg, rgba(0, 242, 255, .08), rgba(0, 245, 212, .05)); }
.guide-formula div { display: flex; flex-direction: column; gap: 5px; }
.guide-formula span { color: var(--guide-muted); font-size: .8rem; text-transform: uppercase; }
.guide-formula strong { color: var(--guide-text); }
.guide-formula i { color: var(--guide-mint); font-size: 1.5rem; }
.guide-example { margin-bottom: 0; }

.guide-action-list { display: grid; gap: 10px; }
.guide-action-list article { display: grid; grid-template-columns: 175px 1fr; gap: 18px; padding: 14px 0; border-bottom: 1px solid rgba(255, 255, 255, .07); }
.guide-action-list strong { color: var(--guide-cyan); }
.guide-action-list p { margin: 0; }
.guide-legend { display: flex; flex-wrap: wrap; gap: 10px; }
.guide-legend span { display: flex; align-items: center; gap: 8px; padding: 8px 11px; border-radius: 20px; background: rgba(255, 255, 255, .04); color: var(--guide-muted); font-size: .85rem; }
.guide-legend i { width: 10px; height: 10px; border-radius: 50%; }
.guide-legend .is-glucose { background: var(--guide-cyan); }
.guide-legend .is-meal { background: #ffc400; }
.guide-legend .is-rapid { background: #ff5c65; }
.guide-legend .is-long { background: #50df87; }
.guide-check-list li::marker { color: var(--guide-mint); }

.guide-metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 20px; }
.guide-metric-grid article { padding: 18px; border-radius: 14px; background: rgba(255, 255, 255, .035); }
.guide-metric-grid strong { display: block; color: var(--guide-cyan); font-size: 1.45rem; }
.guide-metric-grid span { color: var(--guide-text); font-size: .82rem; font-weight: 700; }
.guide-metric-grid p { margin: 10px 0 0; font-size: .87rem; }

.guide-analysis-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 9px; align-items: center; margin: 25px 0; }
.guide-analysis-flow article { min-height: 125px; padding: 15px; border: 1px solid rgba(0, 245, 212, .18); border-radius: 14px; background: rgba(0, 245, 212, .045); }
.guide-analysis-flow b { display: block; color: var(--guide-mint); font-size: .78rem; }
.guide-analysis-flow span { display: block; margin: 12px 0 4px; color: var(--guide-text); font-weight: 800; }
.guide-analysis-flow small { color: var(--guide-muted); }
.guide-analysis-flow > i { color: var(--guide-mint); font-size: 1.5rem; }
.guide-definition-grid, .guide-settings-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.guide-definition-grid strong, .guide-settings-list strong { color: var(--guide-text); }
.guide-definition-grid p, .guide-settings-list p { margin: 7px 0 0; font-size: .9rem; }

.guide-table-wrap { overflow-x: auto; border: 1px solid rgba(0, 242, 255, .16); border-radius: 14px; }
.guide-table { width: 100%; min-width: 720px; border-collapse: collapse; color: var(--guide-muted); font-size: .91rem; }
.guide-table th { padding: 14px 16px; background: rgba(0, 242, 255, .09); color: var(--guide-text); text-align: left; font-size: .78rem; letter-spacing: .05em; text-transform: uppercase; }
.guide-table td { padding: 15px 16px; border-top: 1px solid rgba(255, 255, 255, .065); line-height: 1.55; vertical-align: top; }
.guide-table td:first-child { width: 170px; color: var(--guide-cyan); }
.guide-number-list { list-style: none; margin: 24px 0 0 !important; padding: 0 !important; }
.guide-number-list li { display: flex; gap: 13px; align-items: flex-start; }
.guide-number-list span { display: grid; flex: 0 0 29px; height: 29px; place-items: center; border-radius: 50%; background: rgba(0, 242, 255, .12); color: var(--guide-cyan); font-weight: 800; }
.guide-number-list p { margin: 1px 0 10px; }

.guide-terms { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0; }
.guide-terms div { display: grid; grid-template-columns: 65px 1fr; gap: 12px; padding: 13px; border-radius: 10px; background: rgba(255, 255, 255, .03); }
.guide-terms dt { color: var(--guide-cyan); font-weight: 900; }
.guide-terms dd { margin: 0; color: var(--guide-muted); }
.guide-safety { border-color: rgba(255, 209, 102, .38); }
.guide-safety-content { display: flex; gap: 20px; }
.guide-safety-content > span { display: grid; flex: 0 0 58px; height: 58px; place-items: center; border: 1px solid var(--guide-yellow); border-radius: 50%; color: var(--guide-yellow); font-size: 1.7rem; font-weight: 900; box-shadow: 0 0 20px rgba(255, 209, 102, .15); }
.guide-safety-content p { margin-top: 0; }
.guide-safety-content strong { color: var(--guide-text); }
.guide .guide-back-top { display: block; width: max-content; margin: 0 auto; padding: 10px 16px; border: 1px solid rgba(0, 242, 255, .35); border-radius: 10px; color: var(--guide-cyan) !important; }

@media (max-width: 991px) {
    .guide-hero { grid-template-columns: 1fr; }
    .guide-orbit { display: none; }
    .guide-layout { grid-template-columns: 1fr; }
    .guide-nav { position: static; display: grid; grid-template-columns: repeat(2, 1fr); }
    .guide-nav strong { grid-column: 1 / -1; }
    .guide-step-grid, .guide-metric-grid { grid-template-columns: repeat(2, 1fr); }
    .guide-analysis-flow { grid-template-columns: 1fr 1fr; }
    .guide-analysis-flow > i { display: none; }
}

@media (max-width: 640px) {
    .guide-hero { min-height: auto; padding: 28px 22px; border-radius: 18px; }
    .guide-hero h1 { font-size: 2rem; }
    .guide-nav { grid-template-columns: 1fr; }
    .guide-section { padding: 22px 17px; border-radius: 16px; }
    .guide-step-grid, .guide-feature-grid, .guide-two-columns, .guide-metric-grid,
    .guide-definition-grid, .guide-settings-list, .guide-analysis-flow, .guide-terms { grid-template-columns: 1fr; }
    .guide-formula { grid-template-columns: 1fr; }
    .guide-formula i { transform: rotate(90deg); text-align: center; }
    .guide-action-list article { grid-template-columns: 1fr; gap: 4px; }
    .guide-safety-content { flex-direction: column; }
    .guide-heading > span { flex-basis: 42px; width: 42px; height: 42px; }
}

@media (prefers-reduced-motion: reduce) {
    .guide * { scroll-behavior: auto !important; transition: none !important; }
}