/* ═══════════════════════════════════════════════════════════════
   HK +Gamma — Enlightened Field Guide
   Clean, modern "Apple-esque" documentation with Enlightened Green
   ═══════════════════════════════════════════════════════════════ */

/* ── CSS Custom Properties ── */
:root {
    /* Core palette */
    --green: #00c98d;
    --green-dark: #00a674;
    --green-bg: rgba(0, 201, 141, 0.08);
    --green-bg-solid: #e6faf3;
    --gold: #d4a017;
    --gold-dark: #b08914;
    --gold-bg: rgba(212, 160, 23, 0.1);
    --blue: #3b82f6;
    --blue-bg: rgba(59, 130, 246, 0.08);
    --red: #ef4444;
    --red-bg: rgba(239, 68, 68, 0.06);

    /* Backgrounds */
    --bg: #ffffff;
    --bg-alt: #f7f8fa;
    --bg-card: #ffffff;
    --bg-nav: rgba(255, 255, 255, 0.88);
    --bg-hero: linear-gradient(160deg, #f0fdf7 0%, #ecfdf5 40%, #f0f9ff 100%);

    /* Text */
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-tertiary: #9ca3af;

    /* Borders */
    --border: #e5e7eb;
    --border-light: #f3f4f6;

    /* Radius */
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.08);
    --shadow-green: 0 4px 20px rgba(0, 201, 141, 0.15);

    /* Fonts */
    --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
    --font-cjk: 'PingFang TC', 'Microsoft JhengHei', 'Noto Sans TC', sans-serif;

    /* Spacing */
    --nav-height: 60px;
}

/* ── Reset & Base ── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-height) + 16px);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background: var(--bg);
    line-height: 1.6;
    font-size: 15px;
}

/* Traditional Chinese font support */
body[lang="zh-Hant"],
html[lang="zh-Hant"] body {
    font-family: var(--font-cjk), var(--font-body);
}

img { max-width: 100%; display: block; }
a { color: var(--green-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--font-mono); font-size: 0.88em; background: var(--bg-alt); padding: 2px 6px; border-radius: 4px; }
strong { font-weight: 600; }

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.green { color: var(--green); }

/* ═══════════════════════════════════════ */
/* NAVIGATION                             */
/* ═══════════════════════════════════════ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--nav-height);
    background: var(--bg-nav);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow 0.3s;
}
.nav.scrolled { box-shadow: var(--shadow); }

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    flex-shrink: 0;
}
.nav-logo { width: 28px; height: 28px; }
.nav-title { font-weight: 700; font-size: 16px; letter-spacing: -0.02em; white-space: nowrap; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-link {
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    white-space: nowrap;
}
.nav-link:hover {
    background: var(--green-bg);
    color: var(--green-dark);
    text-decoration: none;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.lang-toggle {
    padding: 5px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 12px;
    background: var(--bg);
    color: var(--text-secondary);
    cursor: pointer;
    outline: none;
}
.lang-toggle:focus { border-color: var(--green); }

.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.nav-hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.25s;
}
.nav-hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 768px) {
    .nav-hamburger { display: flex; }
    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0; right: 0;
        background: var(--bg);
        flex-direction: column;
        padding: 12px 20px 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        transform: translateY(-110%);
        transition: transform 0.3s ease;
        z-index: 99;
    }
    .nav-links.open { transform: translateY(0); }
    .nav-link { padding: 12px 16px; width: 100%; font-size: 15px; }
}

/* ═══════════════════════════════════════ */
/* HERO                                   */
/* ═══════════════════════════════════════ */
.hero {
    padding: calc(var(--nav-height) + 48px) 20px 56px;
    background: var(--bg-hero);
    position: relative;
    overflow: hidden;
    text-align: center;
}
.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(0,201,141,0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(59,130,246,0.04) 0%, transparent 40%);
    pointer-events: none;
}
.hero-content { position: relative; max-width: 600px; margin: 0 auto; }

.hero-badge {
    display: inline-block;
    padding: 4px 14px;
    border: 1px solid var(--green);
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--green-dark);
    margin-bottom: 20px;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.05;
    color: var(--text-primary);
}
.hero-plus {
    color: var(--green);
    font-weight: 700;
}
.hero-subtitle {
    display: block;
    font-size: clamp(1rem, 3vw, 1.35rem);
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0;
    margin-top: 6px;
}

.hero-meta {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 28px;
    flex-wrap: wrap;
}
.hero-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 14px;
}
.hero-meta-item svg { color: var(--green); flex-shrink: 0; }

.total-sp-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 28px;
    padding: 12px 24px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    max-width: 100%;
}
.total-sp-label { font-size: 13px; color: var(--text-secondary); font-weight: 600; }
.total-sp-value {
    font-family: var(--font-mono);
    font-size: 22px;
    font-weight: 700;
    color: var(--green);
}

/* ═══════════════════════════════════════ */
/* SECTIONS                               */
/* ═══════════════════════════════════════ */
.section {
    padding: 64px 0;
}
.section--alt {
    background: var(--bg-alt);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
}
.section-desc {
    color: var(--text-secondary);
    font-size: 15px;
    max-width: 640px;
    margin-bottom: 36px;
}
.subsection-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 48px;
    margin-bottom: 16px;
}

/* ═══════════════════════════════════════ */
/* COMPONENT CARDS (Overview)             */
/* ═══════════════════════════════════════ */
.component-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 14px;
}
.comp-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: all 0.25s;
}
.comp-card:hover {
    box-shadow: var(--shadow);
    border-color: transparent;
}
.comp-card--primary {
    border-color: rgba(0,201,141,0.2);
    background: linear-gradient(135deg, rgba(0,201,141,0.02), rgba(0,201,141,0.05));
}
.comp-card--primary:hover {
    box-shadow: var(--shadow-green);
}
.comp-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 10px;
}
.comp-icon { flex-shrink: 0; }
.comp-points {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-tertiary);
}
.comp-points small { font-size: 10px; }
.comp-points--big {
    color: var(--green);
    font-size: 16px;
}
.comp-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}
.comp-when {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: 8px;
}
.comp-summary {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ═══════════════════════════════════════ */
/* TL;DR                                  */
/* ═══════════════════════════════════════ */
.prepare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}
.prepare-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px;
}
.prepare-block-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 14px;
    color: var(--text-primary);
}
.prepare-block--do { border-color: rgba(0,201,141,0.3); }
.prepare-block--dont { border-color: rgba(239,68,68,0.2); background: var(--red-bg); }
.prepare-block--dont .prepare-block-title { color: var(--red); }

.prepare-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.prepare-list li {
    padding-left: 18px;
    position: relative;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}
.prepare-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
}
.prepare-list--red li::before { background: var(--red); }

/* ═══════════════════════════════════════ */
/* TIMELINE                               */
/* ═══════════════════════════════════════ */
.timeline {
    position: relative;
    padding-left: 140px;
    margin-bottom: 24px;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 139px;
    top: 12px;
    bottom: 12px;
    width: 2px;
    background: var(--border);
}
.timeline-item {
    position: relative;
    padding: 0 0 32px 24px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-time {
    position: absolute;
    left: -140px;
    top: 2px;
    width: 116px;
    text-align: right;
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-tertiary);
    line-height: 1;
}
.timeline-dot {
    position: absolute;
    left: -6px;
    top: 2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--border);
}
.timeline-item--active .timeline-time { color: var(--green-dark); }
.timeline-item--active .timeline-dot {
    background: var(--green);
    border-color: var(--green);
}
.timeline-dot--pulse {
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0,201,141,0.4); }
    50% { box-shadow: 0 0 0 8px rgba(0,201,141,0); }
}
.timeline-content h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}
.timeline-content p {
    font-size: 13.5px;
    color: var(--text-secondary);
}

@media (max-width: 600px) {
    .timeline { padding-left: 28px; }
    .timeline::before { left: 8px; }
    .timeline-time {
        position: static;
        width: auto;
        text-align: left;
        margin-bottom: 2px;
    }
    .timeline-dot { left: -24px; }
}

/* ── Text utility ── */
.text-red { color: var(--red); font-weight: 600; }
.text-green { color: var(--green); font-weight: 600; }

/* ── On-site Events ── */
.onsite-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 10px;
}
.onsite-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
}
.onsite-date {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}
.onsite-name {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
}
.onsite-link {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--green);
    border: 1px solid var(--green);
    padding: 3px 10px;
    border-radius: 100px;
    text-decoration: none;
    transition: all 0.2s;
}
.onsite-link:hover {
    background: var(--green);
    color: #fff;
    text-decoration: none;
}

/* ═══════════════════════════════════════ */
/* RULE BLOCKS (Accordion)                */
/* ═══════════════════════════════════════ */
.rule-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 14px;
    overflow: hidden;
}
.rule-block--warning {
    border-color: rgba(212,160,23,0.3);
}
.rule-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    cursor: pointer;
    user-select: none;
    transition: background 0.15s;
}
.rule-header:hover { background: var(--bg-alt); }
.rule-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}
.rule-header-left h3 {
    font-size: 16px;
    font-weight: 600;
}
.rule-sp {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--green);
    background: var(--green-bg);
    padding: 2px 8px;
    border-radius: 100px;
}
.rule-chevron {
    transition: transform 0.3s;
    color: var(--text-tertiary);
    flex-shrink: 0;
}
.rule-header[aria-expanded="false"] .rule-chevron {
    transform: rotate(-90deg);
}
.rule-body {
    padding: 0 22px 22px;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
}
.rule-body[aria-hidden="true"] {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
}

.rule-info-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}
.info-chip {
    font-size: 13px;
    background: var(--bg-alt);
    padding: 5px 12px;
    border-radius: 100px;
    color: var(--text-secondary);
}
.info-chip strong { color: var(--text-primary); }

.rule-note {
    display: flex;
    gap: 10px;
    padding: 14px 16px;
    background: var(--green-bg);
    border-radius: var(--radius);
    margin-top: 16px;
}
.rule-note svg { flex-shrink: 0; margin-top: 2px; }
.rule-note p { font-size: 13.5px; color: var(--text-secondary); line-height: 1.55; }

/* ── Rule "What to Do" intro ── */
.rule-whatdo {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 12px 16px;
    background: var(--green-bg);
    border-left: 3px solid var(--green);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-bottom: 18px;
}
.rule-whatdo strong {
    color: var(--green-dark);
}

/* ── Beacon Diagram ── */
.diagram-card {
    background: var(--bg-alt);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 12px;
}
.diagram-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin-bottom: 16px;
}

.beacon-diagram {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.beacon-type { display: flex; flex-direction: column; gap: 8px; }
.beacon-type-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}
.beacon-checkpoints {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.checkpoint {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 14px;
    min-width: 52px;
}
.checkpoint--vol {
    border-color: rgba(212,160,23,0.3);
    background: var(--gold-bg);
}
.checkpoint--total {
    border-color: var(--green);
    background: var(--green-bg);
}
.checkpoint--total.checkpoint--vol {
    border-color: var(--gold);
    background: var(--gold-bg);
}
.cp-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
    text-transform: uppercase;
}
.cp-val {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}
.cp-val--total { color: var(--green); }
.checkpoint--vol .cp-val { color: var(--gold-dark); }
.checkpoint--vol .cp-val--total { color: var(--gold-dark); font-size: 20px; }
.checkpoint-arrow {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-tertiary);
    font-weight: 600;
}

/* ── Wave Grid ── */
.wave-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 16px;
}
.wave-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: var(--bg-alt);
    border-radius: var(--radius-sm);
    flex: 1 1 auto;
    min-width: fit-content;
    justify-content: center;
}
.wave-num {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    color: var(--green);
    background: var(--green-bg);
    padding: 2px 6px;
    border-radius: 4px;
}
.wave-time {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
}

/* ── Shard Scoring Visual Examples ── */
.diagram-subtitle {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 18px;
}
.shard-examples {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.shard-ex {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.shard-ex--target {
    border-color: rgba(212,160,23,0.35);
    background: linear-gradient(135deg, rgba(212,160,23,0.04), rgba(212,160,23,0.08));
}
.shard-ex-diagram {
    display: flex;
    justify-content: center;
}
.shard-ex-svg {
    width: 100%;
    max-width: 320px;
    height: auto;
}
.shard-ex-portal-label {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    fill: var(--text-tertiary);
}
.shard-ex-portal-label--target {
    fill: var(--gold-dark);
}
.shard-ex-dist {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    fill: var(--text-tertiary);
}
.shard-ex-dist--long {
    fill: var(--green-dark);
}
.shard-ex-scoring {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.shard-ex-row {
    display: flex;
    align-items: center;
    gap: 8px;
}
.shard-ex-desc {
    font-size: 12px;
    color: var(--text-secondary);
}
.shard-ex-total {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-primary);
    padding-top: 4px;
    border-top: 1px solid var(--border-light);
    margin-top: 2px;
}
.shard-ex-caption {
    font-size: 12px;
    color: var(--text-primary);
    font-weight: 600;
    text-align: center;
    padding-top: 6px;
    border-top: 1px dashed var(--border-light);
}
.shard-ex-conditions {
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: var(--text-tertiary);
    text-align: center;
    line-height: 1.4;
    margin-top: -4px;
}
.shard-pts {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    white-space: nowrap;
    min-width: 34px;
    text-align: center;
}
.shard-pts--link {
    color: var(--green-dark);
    background: var(--green-bg);
    border: 1px solid rgba(0,201,141,0.2);
}
.shard-pts--bonus {
    color: var(--green-dark);
    background: rgba(0,201,141,0.12);
    border: 1px solid rgba(0,201,141,0.25);
}
.shard-pts--target {
    color: var(--gold-dark);
    background: var(--gold-bg);
    border: 1px solid rgba(212,160,23,0.3);
    font-size: 14px;
}
.shard-case-warning {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    margin-top: 14px;
    padding: 10px 12px;
    background: rgba(212,160,23,0.06);
    border-radius: var(--radius-sm);
    border: 1px dashed rgba(212,160,23,0.3);
}
.shard-case-warning svg { flex-shrink: 0; margin-top: 1px; }
.shard-case-warning span {
    font-size: 12.5px;
    color: var(--text-secondary);
    line-height: 1.5;
}

@media (max-width: 600px) {
    .shard-examples { grid-template-columns: 1fr; }
}

/* ── Shard Wave Lifecycle ── */
.shard-wave-lifecycle {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
}
.shard-wave-svg {
    width: 100%;
    min-width: 480px;
    height: auto;
}
.shard-wave-minute {
    font-family: var(--font-mono);
    font-size: 9px;
    fill: var(--text-tertiary);
    font-weight: 600;
}
.shard-wave-event {
    font-family: var(--font-body);
    font-size: 10px;
    fill: var(--green-dark);
    font-weight: 700;
}
.shard-wave-event--end {
    fill: var(--red);
}
.shard-wave-detail {
    font-family: var(--font-mono);
    font-size: 8px;
    fill: var(--text-tertiary);
    font-weight: 500;
}
.shard-wave-notes {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 12px;
}
.shard-wave-note {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 12.5px;
    color: var(--text-secondary);
    line-height: 1.45;
}
.shard-wave-note svg {
    flex-shrink: 0;
    margin-top: 1px;
}

/* ── Shard Movement Rule Cards ── */
.shard-movement-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
}
.shard-rule-card {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}
.shard-rule-card--warn {
    border-color: rgba(212,160,23,0.3);
    background: linear-gradient(135deg, rgba(212,160,23,0.03), rgba(212,160,23,0.07));
}
.shard-rule-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
}
.shard-rule-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.shard-rule-text strong {
    font-size: 12.5px;
    color: var(--text-primary);
}
.shard-rule-text span {
    font-size: 11.5px;
    color: var(--text-secondary);
    line-height: 1.4;
}
@media (max-width: 768px) {
    .shard-movement-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
    .shard-movement-grid { grid-template-columns: 1fr; }
}

/* ── Bounty List ── */
.bounty-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.bounty-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--bg-alt);
    border-radius: var(--radius-sm);
}
.bounty-item--bonus {
    background: var(--gold-bg);
    border: 1px dashed rgba(212,160,23,0.3);
}
.bounty-num {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--green);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
}
.bounty-desc {
    flex: 1;
    font-size: 14px;
    color: var(--text-primary);
}
.bounty-reward {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 600;
    color: var(--gold-dark);
    white-space: nowrap;
}
.bounty-reward small { font-size: 10px; color: var(--text-tertiary); }

/* ── Recursive Info ── */
.recursive-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}
.recursive-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin-bottom: 6px;
}
.recursive-col p {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ── Immunity Details ── */
.immunity-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.immunity-item {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    padding: 8px 12px;
    background: var(--gold-bg);
    border-radius: var(--radius-sm);
}
.immunity-item strong {
    color: var(--text-primary);
    margin-right: 4px;
}

/* ═══════════════════════════════════════ */
/* SCORING FORMULA                        */
/* ═══════════════════════════════════════ */
.scoring-formula {
    display: flex;
    justify-content: center;
    margin-top: 8px;
}
.formula-box {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px 36px;
    text-align: center;
}
.formula-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-tertiary);
    margin-bottom: 14px;
}
.formula-expression {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 600;
    flex-wrap: wrap;
    justify-content: center;
}
.formula-fraction {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}
.formula-bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    margin: 4px 0;
}
.formula-num, .formula-den { font-size: 14px; }
.formula-times { color: var(--text-tertiary); }
.formula-sp { color: var(--gold-dark); }
.formula-faction { font-weight: 700; }

/* ═══════════════════════════════════════ */
/* CALCULATOR                             */
/* ═══════════════════════════════════════ */
.calculator {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 24px;
    overflow: hidden;
}

.calc-header-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 60px;
    gap: 10px;
    padding: 0 0 12px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 8px;
}
.calc-header-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.calc-header-faction {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    text-align: center;
}
.calc-header-enl { color: var(--green); }
.calc-header-res { color: var(--blue); }
.calc-header-sp {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-align: center;
}

.calc-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 60px;
    gap: 10px;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
}
.calc-row--primary { background: var(--green-bg); margin: 0 -24px; padding: 8px 24px; border-bottom-color: rgba(0,201,141,0.1); }
.calc-label {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-primary);
}
.calc-cut-label {
    display: block;
    font-size: 10px;
    font-weight: 500;
    color: var(--text-tertiary);
}

.calc-input {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 14px;
    text-align: center;
    background: var(--bg);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s;
}
.calc-input:focus { border-color: var(--green); }
.calc-input--enl:focus { border-color: var(--green); box-shadow: 0 0 0 2px rgba(0,201,141,0.1); }
.calc-input--res:focus { border-color: var(--blue); box-shadow: 0 0 0 2px rgba(59,130,246,0.1); }

.calc-pool {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-tertiary);
    font-weight: 600;
}

.calc-results {
    margin-top: 20px;
}
.calc-result-bar {
    display: flex;
    height: 44px;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg-alt);
}
.calc-result-enl {
    background: var(--green);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: width 0.4s ease;
    min-width: 60px;
}
.calc-result-res {
    background: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: width 0.4s ease;
    min-width: 60px;
}
.calc-result-label {
    font-size: 11px;
    font-weight: 700;
    color: rgba(255,255,255,0.8);
    letter-spacing: 0.05em;
}
.calc-result-value {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 700;
    color: #fff;
}
.calc-result-total {
    text-align: center;
    margin-top: 10px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-tertiary);
}

@media (max-width: 600px) {
    .calc-header-row, .calc-row {
        grid-template-columns: 1fr 1fr 1fr 44px;
        gap: 6px;
    }
    .calc-row--primary { margin: 0 -16px; padding: 8px 16px; }
    .calculator { padding: 16px; }
    .calc-label { font-size: 12px; }
    .calc-input { padding: 6px 4px; font-size: 13px; }
}

/* ═══════════════════════════════════════ */
/* JOIN FACTION                           */
/* ═══════════════════════════════════════ */
.join-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.join-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s;
}
.join-btn:hover { text-decoration: none; transform: translateY(-2px); }
.join-btn--enl {
    background: var(--green);
    color: #fff;
    box-shadow: var(--shadow-green);
}
.join-btn--enl:hover { background: var(--green-dark); }
.join-btn--res {
    background: var(--blue);
    color: #fff;
    box-shadow: 0 4px 20px rgba(59,130,246,0.2);
}
.join-btn--res:hover { background: #2563eb; }

/* ═══════════════════════════════════════ */
/* FOOTER                                 */
/* ═══════════════════════════════════════ */
.footer {
    padding: 24px 0;
    border-top: 1px solid var(--border);
    background: var(--bg-alt);
}
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-left {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-tertiary);
}
.footer-right a {
    font-size: 13px;
    color: var(--text-tertiary);
}
.footer-right a:hover { color: var(--green); }

/* ═══════════════════════════════════════ */
/* ANIMATIONS                             */
/* ═══════════════════════════════════════ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}
.hero-content {
    animation: fadeInUp 0.6s ease-out;
}
.comp-card {
    animation: fadeInUp 0.5s ease-out backwards;
}
.comp-card:nth-child(1) { animation-delay: 0.05s; }
.comp-card:nth-child(2) { animation-delay: 0.1s; }
.comp-card:nth-child(3) { animation-delay: 0.15s; }
.comp-card:nth-child(4) { animation-delay: 0.2s; }
.comp-card:nth-child(5) { animation-delay: 0.25s; }
.comp-card:nth-child(6) { animation-delay: 0.3s; }

/* ═══════════════════════════════════════ */
/* PRINT                                  */
/* ═══════════════════════════════════════ */
@media print {
    .nav, .nav-hamburger, .lang-toggle, .join-buttons, .footer { display: none; }
    .section { padding: 24px 0; }
    .rule-body[aria-hidden="true"] { max-height: none; padding: 0 22px 22px; }
}