/* ===================================================================
   ESTUDO — Scrollytelling editorial do TCC
   Reforma Tributária e Arrecadação Municipal · Samuel Pulcini
   Design system: navy MP076 + lime · fintech rounded
   =================================================================== */

:root {
    /* Paleta MP076 */
    --navy: #001F3F;        /* Midnight Mirage */
    --lime: #DBE64C;        /* First Colors of Spring */
    --lime-light: #E9F277;
    --green: #74C365;       /* Mantis */
    --green-light: #9BD98F;
    --green-deep: #00804C;  /* Picture Book Green */
    --blue: #1E488F;        /* Nuit Blanche */
    --blue-light: #5B8DEF;
    --white: #F6F7ED;       /* Praxeti White */

    /* Semânticos derivados */
    --bg: #02101f;
    --bg-soft: #03182e;
    --bg-card: rgba(13, 42, 74, 0.42);
    --line: rgba(246, 247, 237, 0.08);

    --neg: #FF6E61;
    --neg-light: #FFA396;

    --text: var(--white);
    --text-2: #A9BACB;
    --text-3: #7A93AC;

    --sans: 'Plus Jakarta Sans', -apple-system, 'SF Pro Rounded', system-ui, sans-serif;
    --display: 'Plus Jakarta Sans', -apple-system, system-ui, sans-serif;
    --mono: 'JetBrains Mono', 'SF Mono', monospace;

    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    background-image: linear-gradient(160deg, #02101f 0%, #001F3F 55%, #032441 100%);
    background-attachment: fixed;
    color: var(--text);
    font-family: var(--sans);
    font-weight: 400;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(219, 230, 76, 0.35); }

b, strong { font-weight: 700; color: var(--text); }
em { font-style: normal; }

/* Ícones SVG inline */
.icon {
    width: 1em;
    height: 1em;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    vertical-align: -0.12em;
    flex-shrink: 0;
}

/* ---------------- Progress bar ---------------- */
.progress-bar {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, var(--lime), var(--green));
    z-index: 1000;
    box-shadow: 0 0 12px rgba(219, 230, 76, 0.55);
}

/* ---------------- Chapter nav (dots) ---------------- */
.chapter-nav {
    position: fixed;
    right: 1.4rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 14px;
    z-index: 900;
}

.chapter-nav a {
    width: 9px; height: 9px;
    border-radius: 50%;
    background: rgba(246, 247, 237, 0.18);
    transition: all 0.35s var(--ease);
    position: relative;
}

.chapter-nav a:hover { background: var(--lime-light); transform: scale(1.4); }

.chapter-nav a.active {
    background: var(--lime);
    box-shadow: 0 0 10px rgba(219, 230, 76, 0.8);
    transform: scale(1.35);
}

.chapter-nav a::after {
    content: attr(data-label);
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%) translateX(6px);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-2);
    background: rgba(2, 16, 31, 0.92);
    border: 1px solid var(--line);
    padding: 3px 10px;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.25s var(--ease);
}

.chapter-nav a:hover::after { opacity: 1; transform: translateY(-50%) translateX(0); }

@media (max-width: 900px) { .chapter-nav { display: none; } }

/* ---------------- Header ---------------- */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 950;
    padding: 0 1.5rem;
    transition: all 0.4s var(--ease);
}

.site-header.scrolled {
    background: rgba(2, 16, 31, 0.78);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    max-width: 1180px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: -0.01em;
}

.brand-mark {
    width: 12px; height: 12px;
    border-radius: 4px;
    background: linear-gradient(135deg, var(--lime), var(--green));
    box-shadow: 0 0 14px rgba(219, 230, 76, 0.55);
}

.brand-text em { font-weight: 400; color: var(--text-3); }

.btn-sim {
    text-decoration: none;
    white-space: nowrap;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--lime);
    padding: 9px 18px;
    border-radius: 99px;
    border: 1px solid rgba(219, 230, 76, 0.45);
    background: rgba(219, 230, 76, 0.08);
    transition: all 0.3s var(--ease);
}

.btn-sim:hover {
    background: var(--lime);
    color: var(--navy);
    box-shadow: 0 6px 24px rgba(219, 230, 76, 0.35);
    transform: translateY(-1px);
}

@media (max-width: 600px) {
    .header-inner { height: 56px; }
    .brand-text em { display: none; }
    .brand { font-size: 0.84rem; }
    .btn-sim { font-size: 0.76rem; padding: 7px 13px; white-space: nowrap; }
    .formula { font-size: 1.1rem; gap: 0.6rem; }
    .hero-meta { flex-direction: column; gap: 0.8rem; }
    .hero-meta .divider { display: none; }
    .hero-meta div { text-align: center; align-items: center; }
}

/* ---------------- Reveal-on-scroll ---------------- */
.reveal {
    opacity: 0;
    transform: translateY(34px);
    transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.32s; }
.reveal.d4 { transition-delay: 0.48s; }
.reveal.d5 { transition-delay: 0.64s; }

@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

/* ---------------- HERO ---------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 7rem 1.5rem 6rem;
    overflow: hidden;
    background:
        radial-gradient(ellipse 70% 50% at 50% -10%, rgba(30, 72, 143, 0.30), transparent),
        radial-gradient(ellipse 50% 40% at 85% 100%, rgba(219, 230, 76, 0.07), transparent);
}

#hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 880px;
}

.hero-badge {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--lime);
    border: 1px solid rgba(219, 230, 76, 0.3);
    background: rgba(219, 230, 76, 0.07);
    padding: 8px 18px;
    border-radius: 99px;
    margin-bottom: 2rem;
}

.hero-title {
    font-family: var(--display);
    font-weight: 800;
    font-size: clamp(2.3rem, 5.8vw, 4.3rem);
    line-height: 1.1;
    letter-spacing: -0.035em;
    margin-bottom: 1.8rem;
}

.hero-title .line { display: block; }

.hero-title .accent {
    background: linear-gradient(100deg, var(--lime), var(--green-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    font-size: 1.1rem;
    color: var(--text-2);
    max-width: 640px;
    margin: 0 auto 2.6rem;
}

.hero-meta {
    display: inline-flex;
    align-items: center;
    gap: 1.4rem;
    padding: 0.9rem 1.6rem;
    border-radius: 18px;
    background: rgba(246, 247, 237, 0.03);
    border: 1px solid var(--line);
    backdrop-filter: blur(8px);
}

.hero-meta div { display: flex; flex-direction: column; text-align: left; }
.hero-meta strong { font-size: 0.92rem; }
.hero-meta span { font-size: 0.76rem; color: var(--text-3); }
.hero-meta .divider { width: 1px; height: 34px; background: var(--line); padding: 0; }

.scroll-cue {
    position: absolute;
    bottom: 2.2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
    color: var(--text-3);
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    z-index: 2;
    transition: color 0.3s;
}

.scroll-cue:hover { color: var(--text-2); }

.mouse {
    width: 24px; height: 38px;
    border: 2px solid rgba(246, 247, 237, 0.25);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.wheel {
    width: 3px; height: 8px;
    border-radius: 3px;
    background: var(--lime);
    animation: wheel 1.8s ease-in-out infinite;
}

@keyframes wheel {
    0%   { transform: translateY(0); opacity: 1; }
    70%  { transform: translateY(12px); opacity: 0; }
    100% { transform: translateY(0); opacity: 0; }
}

/* ---------------- Capítulos (base) ---------------- */
.chapter {
    position: relative;
    max-width: 1180px;
    margin: 0 auto;
    padding: 7rem 1.5rem 5rem;
}

.chapter + .chapter::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: min(640px, 80%);
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(246, 247, 237, 0.12), transparent);
}

.chapter-head { max-width: 780px; margin-bottom: 3.5rem; }

.chapter-number {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--lime);
    margin-bottom: 1rem;
}

.chapter-number::before {
    content: '';
    display: inline-block;
    width: 34px; height: 1px;
    background: var(--lime);
    vertical-align: middle;
    margin-right: 12px;
}

.chapter h2 {
    font-family: var(--display);
    font-weight: 800;
    font-size: clamp(1.8rem, 3.8vw, 2.8rem);
    line-height: 1.16;
    letter-spacing: -0.03em;
    margin-bottom: 1.4rem;
}

.chapter h2 em { color: var(--lime); }

.chapter-lead {
    font-size: 1.1rem;
    color: var(--text-2);
}

.chapter h3 {
    font-family: var(--display);
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: -0.02em;
    margin-bottom: 1.4rem;
}

/* ---------------- Callout ---------------- */
.callout {
    display: flex;
    gap: 1.1rem;
    align-items: flex-start;
    margin-top: 3rem;
    padding: 1.5rem 1.8rem;
    border-radius: 20px;
    background: linear-gradient(120deg, rgba(30, 72, 143, 0.18), rgba(219, 230, 76, 0.05));
    border: 1px solid rgba(30, 72, 143, 0.45);
}

.callout-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 42px; height: 42px;
    border-radius: 13px;
    background: rgba(219, 230, 76, 0.1);
    border: 1px solid rgba(219, 230, 76, 0.3);
    color: var(--lime);
    font-size: 1.2rem;
}

.callout p { color: var(--text-2); font-size: 0.98rem; }

/* ---------------- CAP 01 — fluxos ---------------- */
.flow-compare {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1.6rem;
    align-items: stretch;
}

.flow-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: border-color 0.4s, box-shadow 0.4s;
}

.flow-card[data-side="origem"]:hover { border-color: rgba(91, 141, 239, 0.45); box-shadow: 0 18px 50px rgba(30, 72, 143, 0.18); }
.flow-card[data-side="destino"]:hover { border-color: rgba(255, 110, 97, 0.4); box-shadow: 0 18px 50px rgba(255, 110, 97, 0.08); }

.flow-tag {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.66rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 5px 12px;
    border-radius: 99px;
    margin-bottom: 1rem;
}

.flow-tag.old { background: rgba(91, 141, 239, 0.12); color: var(--blue-light); border: 1px solid rgba(91, 141, 239, 0.35); }
.flow-tag.new { background: rgba(219, 230, 76, 0.1); color: var(--lime); border: 1px solid rgba(219, 230, 76, 0.35); }

.flow-card h3 { margin-bottom: 1.6rem; font-size: 1.4rem; font-weight: 500; }
.flow-card h3 strong { font-weight: 800; }
.flow-card p { font-size: 0.95rem; color: var(--text-2); margin-top: 1.4rem; }

.flow-versus {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flow-versus span {
    font-weight: 600;
    color: var(--text-3);
    font-size: 0.95rem;
    border: 1px solid var(--line);
    border-radius: 50%;
    width: 58px; height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-soft);
}

.flow-diagram {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 0.6rem;
}

.node { display: flex; flex-direction: column; align-items: center; gap: 8px; }

.node-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px; height: 52px;
    border-radius: 16px;
    background: rgba(246, 247, 237, 0.05);
    border: 1px solid var(--line);
    color: var(--text-2);
    font-size: 1.45rem;
}

.node-label { font-size: 0.72rem; color: var(--text-3); text-align: center; max-width: 90px; }

.flow-track { position: relative; height: 60px; }
.flow-track svg { width: 100%; height: 100%; }

.flow-path {
    fill: none;
    stroke: rgba(91, 141, 239, 0.5);
    stroke-width: 2;
    stroke-dasharray: 7 7;
    animation: dashmove 1.2s linear infinite;
}

.flow-path.away { stroke: rgba(255, 110, 97, 0.5); }

@keyframes dashmove { to { stroke-dashoffset: -14; } }

.flow-coin {
    position: absolute;
    top: 50%;
    left: 0;
    width: 28px; height: 28px;
    margin-top: -14px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 800;
    color: #0b2c20;
    background: radial-gradient(circle at 35% 30%, var(--green-light), var(--green));
    box-shadow: 0 0 14px rgba(116, 195, 101, 0.5);
    animation: coinflow 3.3s linear infinite;
    animation-delay: var(--delay);
    opacity: 0;
}

.flow-coin.away {
    color: #3d0d0d;
    background: radial-gradient(circle at 35% 30%, var(--neg-light), var(--neg));
    box-shadow: 0 0 14px rgba(255, 110, 97, 0.5);
}

@keyframes coinflow {
    0%   { left: 0%; opacity: 0; transform: scale(0.7); }
    12%  { opacity: 1; transform: scale(1); }
    82%  { opacity: 1; }
    100% { left: calc(100% - 28px); opacity: 0; transform: scale(0.75); }
}

@media (max-width: 880px) {
    .flow-compare { grid-template-columns: 1fr; }
    .flow-versus span { transform: rotate(90deg); }
}

/* ---------------- CAP 02 — stats e dualidade ---------------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.2rem;
    margin-bottom: 3.4rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 1.7rem 1.5rem;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    transition: transform 0.4s var(--ease), border-color 0.4s;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--lime), transparent);
    opacity: 0.7;
}

.stat-card:hover { transform: translateY(-5px); border-color: rgba(219, 230, 76, 0.35); }

.stat-value {
    display: block;
    font-family: var(--display);
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
    line-height: 1.1;
    margin-bottom: 0.4rem;
    font-variant-numeric: tabular-nums;
}

.stat-label { display: block; font-size: 0.95rem; color: var(--text-2); font-weight: 500; }
.stat-note { display: block; font-family: var(--mono); font-size: 0.68rem; color: var(--text-3); margin-top: 0.5rem; }

/* ---------------- Mapa real da região (MapLibre) ---------------- */
.region-map-block {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 1.4rem;
    margin-bottom: 3.4rem;
    backdrop-filter: blur(10px);
}

.region-map-head { padding: 0.6rem 0.8rem 1.2rem; }
.region-map-head h3 { margin-bottom: 0.4rem; }
.region-map-head p { font-size: 0.92rem; color: var(--text-2); }
.map-hint { display: block; font-family: var(--mono); font-size: 0.68rem; color: var(--text-3); margin-top: 0.4rem; }

#region-map {
    height: 460px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--bg-soft);
}

@media (max-width: 640px) { #region-map { height: 340px; } }

/* marcadores e popups do MapLibre na paleta */
.map-marker { position: relative; cursor: pointer; }

.map-dot {
    border-radius: 50%;
    border: 2px solid rgba(246, 247, 237, 0.85);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    transition: transform 0.25s var(--ease);
}

.map-marker:hover .map-dot { transform: scale(1.25); }

.map-marker.foco .map-dot { width: 18px; height: 18px; background: var(--lime); box-shadow: 0 0 16px rgba(219, 230, 76, 0.7); }
.map-marker.polo .map-dot { width: 14px; height: 14px; background: var(--blue-light); }
.map-marker.viz  .map-dot { width: 10px; height: 10px; background: #51729b; }

.map-marker.foco::before {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 2px solid rgba(219, 230, 76, 0.5);
    animation: mapPulse 2.4s ease-out infinite;
}

@keyframes mapPulse {
    0% { transform: scale(0.6); opacity: 1; }
    100% { transform: scale(1.6); opacity: 0; }
}

.map-label {
    position: absolute;
    top: calc(100% + 5px);
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    font-family: var(--sans);
    font-size: 11px;
    font-weight: 700;
    color: var(--white);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.9);
    pointer-events: none;
}

.map-marker.viz .map-label { font-weight: 500; font-size: 10px; color: var(--text-2); }

.maplibregl-popup-content {
    background: rgba(3, 24, 46, 0.96) !important;
    color: var(--text) !important;
    border: 1px solid rgba(219, 230, 76, 0.3);
    border-radius: 12px !important;
    padding: 10px 14px !important;
    font-family: var(--sans) !important;
    font-size: 0.8rem;
    line-height: 1.5;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5) !important;
    max-width: 240px;
}

.maplibregl-popup-content b { color: var(--lime); }

.maplibregl-popup-tip { border-top-color: rgba(3, 24, 46, 0.96) !important; border-bottom-color: rgba(3, 24, 46, 0.96) !important; }

.maplibregl-ctrl-attrib { background: rgba(2, 16, 31, 0.6) !important; font-size: 9px; }
.maplibregl-ctrl-attrib a { color: var(--text-3) !important; }

/* controles de zoom/recentralizar na paleta do estudo */
.maplibregl-ctrl-group {
    background: rgba(3, 24, 46, 0.92) !important;
    border: 1px solid rgba(219, 230, 76, 0.25);
    border-radius: 10px !important;
    overflow: hidden;
}

.maplibregl-ctrl-group button {
    background: transparent !important;
    border-bottom: 1px solid rgba(246, 247, 237, 0.08) !important;
}

.maplibregl-ctrl-group button:last-child { border-bottom: none !important; }

.maplibregl-ctrl button .maplibregl-ctrl-icon { filter: invert(1) brightness(1.4); }

.map-home-btn {
    color: var(--white);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
}

/* ---------------- Spotlight hover (desktop) ---------------- */
@media (hover: hover) and (pointer: fine) {
    .spot { position: relative; }

    .spot::after {
        content: '';
        position: absolute;
        inset: 0;
        border-radius: inherit;
        pointer-events: none;
        opacity: 0;
        transition: opacity 0.35s;
        background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 50%), rgba(219, 230, 76, 0.07), transparent 65%);
    }

    .spot:hover::after { opacity: 1; }
}

.duality {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 2.2rem;
    backdrop-filter: blur(10px);
}

.duality-bars { display: flex; flex-direction: column; gap: 1.5rem; margin: 1.8rem 0; }

.duality-label { display: block; font-size: 0.9rem; color: var(--text-2); margin-bottom: 0.55rem; }

.duality-track {
    height: 44px;
    border-radius: 14px;
    background: rgba(246, 247, 237, 0.04);
    overflow: hidden;
}

.duality-fill {
    height: 100%;
    width: 0;
    border-radius: 14px;
    display: flex;
    align-items: center;
    padding: 0 1.1rem;
    transition: width 1.6s var(--ease);
    white-space: nowrap;
}

.duality-fill span { font-weight: 700; font-size: 0.95rem; }

.duality-fill.produce { background: linear-gradient(90deg, var(--blue), var(--blue-light)); box-shadow: 0 0 26px rgba(30, 72, 143, 0.45); }
.duality-fill.consume { background: linear-gradient(90deg, var(--green-deep), var(--green)); box-shadow: 0 0 26px rgba(116, 195, 101, 0.3); }

.duality-note { font-size: 0.95rem; color: var(--text-2); }

/* ---------------- CAP 03 — VAF e anéis ---------------- */
.vaf-block {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 2.2rem;
    margin-bottom: 2.6rem;
    backdrop-filter: blur(10px);
}

.vaf-bar {
    display: flex;
    height: 64px;
    border-radius: 16px;
    overflow: hidden;
    margin: 1.6rem 0 1.2rem;
    background: rgba(246, 247, 237, 0.03);
}

.vaf-seg {
    width: 0;
    transition: width 1.5s var(--ease);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.vaf-seg span { font-size: 0.82rem; font-weight: 600; white-space: nowrap; padding: 0 8px; }
.vaf-seg span b { font-weight: 800; }

.vaf-seg.usina    { background: linear-gradient(180deg, #2A5CB8, #1E488F); }
.vaf-seg.grupo    { background: linear-gradient(180deg, #3F70CC, #2A5CB8); }
.vaf-seg.logistica{ background: linear-gradient(180deg, #16365F, #102A4D); }
.vaf-seg.outros   { background: linear-gradient(180deg, #1d3b58, #142B42); }
.vaf-seg.varejo   { background: linear-gradient(180deg, var(--green), var(--green-deep)); }

.vaf-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.4rem;
    font-size: 0.8rem;
    color: var(--text-2);
    margin-bottom: 1.2rem;
}

.vaf-legend .dot {
    display: inline-block;
    width: 10px; height: 10px;
    border-radius: 3px;
    margin-right: 6px;
}

.dot.usina { background: #2A5CB8; }
.dot.grupo { background: #3F70CC; }
.dot.logistica { background: #16365F; }
.dot.outros { background: #1d3b58; }
.dot.varejo { background: var(--green); }

.vaf-note { font-size: 0.95rem; color: var(--text-2); }

.risk-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.4rem;
}

.risk-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: transform 0.4s var(--ease), border-color 0.4s;
}

.risk-card:hover { transform: translateY(-5px); border-color: rgba(255, 110, 97, 0.35); }

.risk-kind {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.68rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-3);
    margin-bottom: 1.2rem;
}

.risk-ring { position: relative; width: 150px; margin: 0 auto 1.4rem; }
.risk-ring svg { width: 100%; transform: rotate(-90deg); }

.ring-bg { fill: none; stroke: rgba(246, 247, 237, 0.06); stroke-width: 11; }

.ring-val {
    fill: none;
    stroke: var(--neg);
    stroke-width: 11;
    stroke-linecap: round;
    stroke-dasharray: 326.7;
    stroke-dashoffset: 326.7;
    transition: stroke-dashoffset 1.8s var(--ease);
    filter: drop-shadow(0 0 8px rgba(255, 110, 97, 0.45));
}

.ring-text {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.ring-text b { font-family: var(--display); font-weight: 800; font-size: 1.6rem; color: var(--neg-light); font-variant-numeric: tabular-nums; }
.ring-text span { font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-3); }

.risk-card p { font-size: 0.92rem; color: var(--text-2); text-align: left; }

/* ---------------- CAP 04 — IVT ---------------- */
.ivt-layout {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 1.6rem;
    align-items: stretch;
}

@media (max-width: 880px) { .ivt-layout { grid-template-columns: 1fr; } }

.formula-card, .gauge-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 2.2rem;
    backdrop-filter: blur(10px);
}

.formula {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.1rem;
    font-family: var(--display);
    font-weight: 700;
    font-size: 1.4rem;
    padding: 1.4rem 0 2rem;
}

.f-frac { display: inline-flex; flex-direction: column; align-items: center; }
.f-num { padding: 0 0.8rem 0.45rem; border-bottom: 2px solid rgba(246, 247, 237, 0.35); }
.f-den { padding-top: 0.45rem; }
.f-op { color: var(--text-3); }

.f-term { padding: 2px 10px; border-radius: 10px; }
.f-term.f-result { background: rgba(219, 230, 76, 0.12); color: var(--lime); border: 1px solid rgba(219, 230, 76, 0.35); }
.f-term.f-risk   { background: rgba(255, 110, 97, 0.1);  color: var(--neg-light); border: 1px solid rgba(255, 110, 97, 0.3); }
.f-term.f-total  { background: rgba(91, 141, 239, 0.1); color: var(--blue-light); border: 1px solid rgba(91, 141, 239, 0.35); }

.formula-legend { list-style: none; display: flex; flex-direction: column; gap: 0.9rem; }
.formula-legend li { font-size: 0.92rem; color: var(--text-2); }

.f-chip { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 8px; }
.f-chip.risk { background: var(--neg); }
.f-chip.total { background: var(--blue-light); }

.gauge { position: relative; max-width: 340px; margin: 0 auto; }
.gauge svg { width: 100%; }

.gauge-bg { fill: none; stroke: rgba(246, 247, 237, 0.06); stroke-width: 14; stroke-linecap: round; }

.gauge-zone { fill: none; stroke-width: 4; stroke-linecap: butt; opacity: 0.85; }
/* arco total ≈ 282.7 → zonas 30% / 20% / 50% */
.gauge-zone.low  { stroke: var(--green); stroke-dasharray: 84.8 282.7; }
.gauge-zone.mid  { stroke: var(--lime);  stroke-dasharray: 56.6 282.7; stroke-dashoffset: -84.8; }
.gauge-zone.high { stroke: var(--neg);   stroke-dasharray: 141.4 282.7; stroke-dashoffset: -141.4; }

.gauge-val {
    fill: none;
    stroke: var(--neg);
    stroke-width: 14;
    stroke-linecap: round;
    stroke-dasharray: 0 282.7;
    transition: stroke-dasharray 2s var(--ease);
    filter: drop-shadow(0 0 10px rgba(255, 110, 97, 0.4));
}

.gauge-needle {
    stroke: var(--white);
    stroke-width: 3;
    stroke-linecap: round;
    transform-origin: 110px 120px;
    transform: rotate(-90deg);
    transition: transform 2s var(--ease);
}

.gauge-pivot { fill: var(--white); }

.gauge-readout { text-align: center; margin-top: -0.6rem; }
.gauge-readout b { display: block; font-family: var(--display); font-weight: 800; font-size: 2.6rem; letter-spacing: -0.03em; color: var(--neg-light); line-height: 1.1; font-variant-numeric: tabular-nums; }
.gauge-readout b .counter { font: inherit; color: inherit; }
.gauge-readout > span { font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-3); }

.gauge-scale {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.7rem;
    margin-top: 1.8rem;
    font-size: 0.74rem;
    color: var(--text-2);
    text-align: center;
}

.gauge-scale .zone { padding: 0.7rem 0.5rem; border-radius: 14px; border: 1px solid var(--line); line-height: 1.45; }
.gauge-scale .zone b { display: block; font-size: 0.85rem; }
.gauge-scale .zone.low b { color: var(--green-light); }
.gauge-scale .zone.mid b { color: var(--lime); }
.gauge-scale .zone.high { border-color: rgba(255, 110, 97, 0.4); background: rgba(255, 110, 97, 0.06); }
.gauge-scale .zone.high b { color: var(--neg-light); }

.big-quote {
    margin-top: 3.4rem;
    padding-left: 2rem;
    border-left: 3px solid var(--lime);
    max-width: 820px;
}

.big-quote p {
    font-family: var(--display);
    font-size: clamp(1.2rem, 2.3vw, 1.6rem);
    line-height: 1.5;
    font-weight: 400;
    letter-spacing: -0.015em;
    color: var(--text-2);
}

.big-quote strong { color: var(--text); font-weight: 700; }

/* ---------------- CAP 05 — Huff ---------------- */
.huff-stage {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 1.4rem;
    margin-bottom: 2.6rem;
    backdrop-filter: blur(10px);
}

#huff-map { width: 100%; display: block; }

.huff-link { stroke: rgba(246, 247, 237, 0.12); stroke-width: 1.5; stroke-dasharray: 5 6; }
.huff-dist { fill: var(--text-3); font-size: 13px; font-family: var(--mono); text-anchor: middle; }

.city-halo { fill: rgba(30, 72, 143, 0.12); stroke: rgba(91, 141, 239, 0.22); stroke-width: 1; }
#huff-prado .city-halo { animation: halo 3.4s ease-in-out infinite; }

@keyframes halo {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.08); opacity: 0.7; }
}

.city-core { stroke-width: 2; }
.city-core.small { fill: rgba(116, 195, 101, 0.22); stroke: var(--green); }
.city-core.mid   { fill: rgba(30, 72, 143, 0.35);  stroke: var(--blue-light); }
.city-core.big   { fill: rgba(30, 72, 143, 0.5); stroke: var(--blue-light); }

.city-name { fill: var(--text); font-size: 17px; font-weight: 700; font-family: var(--sans); text-anchor: middle; }
.city-sub  { fill: var(--text-3); font-size: 12px; font-family: var(--sans); text-anchor: middle; }

.huff-particle { pointer-events: none; }

.huff-caption {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    padding: 0.8rem 0 0.4rem;
}

.huff-stat {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.7rem 1.3rem;
    border-radius: 16px;
    border: 1px solid var(--line);
    font-size: 0.85rem;
    color: var(--text-2);
}

.huff-stat b { font-family: var(--display); font-weight: 800; font-size: 1.6rem; font-variant-numeric: tabular-nums; }
.huff-stat.leak b { color: var(--neg-light); }
.huff-stat.keep b { color: var(--green-light); }
.huff-stat span { max-width: 220px; line-height: 1.4; }

.k-explain {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 2.2rem;
    backdrop-filter: blur(10px);
}

.k-equation {
    display: flex;
    align-items: stretch;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.k-step {
    flex: 1 1 200px;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 1.2rem 1.3rem;
    background: rgba(246, 247, 237, 0.025);
}

.k-step b { display: block; font-family: var(--display); font-weight: 800; font-size: 1.45rem; letter-spacing: -0.02em; margin-bottom: 0.4rem; color: var(--blue-light); }
.k-step span { font-size: 0.84rem; color: var(--text-2); line-height: 1.5; }

.k-step.result { border-color: rgba(219, 230, 76, 0.4); background: rgba(219, 230, 76, 0.05); }
.k-step.result b { color: var(--lime); }

.k-op {
    align-self: center;
    font-weight: 600;
    font-size: 1.8rem;
    color: var(--text-3);
}

@media (max-width: 600px) {
    .k-equation { flex-direction: column; }
}

.real-bar {
    display: flex;
    height: 52px;
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 0.8rem;
    background: rgba(246, 247, 237, 0.03);
}

.real-kept {
    width: 0;
    transition: width 1.6s var(--ease);
    background: linear-gradient(90deg, var(--green-deep), var(--green));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 22px rgba(116, 195, 101, 0.35);
}

.real-lost { flex: 1; display: flex; align-items: center; justify-content: center; }

.real-kept span, .real-lost span { font-size: 0.82rem; font-weight: 700; white-space: nowrap; }
.real-lost span { color: var(--text-3); font-weight: 400; }

.real-note p { font-size: 0.9rem; color: var(--text-2); }

/* ---------------- CAP 06 — EPL ---------------- */
.epl-scale {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1.2rem;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 2.4rem 2rem;
    margin-bottom: 3rem;
    backdrop-filter: blur(10px);
}

.scale-side {
    text-align: center;
    padding: 1.6rem 1.2rem;
    border-radius: 20px;
}

.scale-side.lose { background: rgba(255, 110, 97, 0.06); border: 1px solid rgba(255, 110, 97, 0.3); }
.scale-side.gain { background: rgba(116, 195, 101, 0.06); border: 1px solid rgba(116, 195, 101, 0.3); }

.scale-tag {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.64rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    padding: 4px 12px;
    border-radius: 99px;
    margin-bottom: 0.7rem;
}

.scale-side.lose .scale-tag { background: rgba(255, 110, 97, 0.16); color: var(--neg-light); }
.scale-side.gain .scale-tag { background: rgba(116, 195, 101, 0.16); color: var(--green-light); }

.scale-side b { display: block; font-family: var(--display); font-weight: 800; letter-spacing: -0.03em; font-size: 2rem; line-height: 1.15; margin-bottom: 0.4rem; font-variant-numeric: tabular-nums; }
.scale-side.lose b { color: var(--neg-light); }
.scale-side.gain b { color: var(--green-light); }
.scale-side span { font-size: 0.84rem; color: var(--text-2); line-height: 1.5; }

.scale-minus { font-weight: 300; font-size: 2.6rem; color: var(--text-3); }

@media (max-width: 720px) {
    .epl-scale { grid-template-columns: 1fr; padding: 1.8rem 1.2rem; }
    .scale-center { display: none; }
    .scale-side b { font-size: 1.7rem; }
    .scale-equals { flex-direction: column; gap: 0.4rem; text-align: center; }
    .scale-result { text-align: center; }
}

.scale-equals {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.4rem;
    margin-top: 0.6rem;
    padding-top: 1.6rem;
    border-top: 1px dashed rgba(246, 247, 237, 0.12);
}

.scale-equals > span { font-weight: 300; font-size: 2.2rem; color: var(--text-3); }

.scale-result { text-align: left; }
.scale-result b { display: block; font-family: var(--display); font-weight: 800; letter-spacing: -0.02em; font-size: 1.55rem; color: var(--neg-light); }
.scale-result span { font-size: 0.85rem; color: var(--text-2); }

.scenario-title { margin-bottom: 1.6rem; }

.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.3rem;
}

.scenario-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 1.9rem 1.6rem;
    backdrop-filter: blur(10px);
    transition: transform 0.4s var(--ease), box-shadow 0.4s;
}

.scenario-card:hover { transform: translateY(-6px); }
.scenario-card.deficit:hover { box-shadow: 0 20px 50px rgba(255, 110, 97, 0.1); }
.scenario-card.surplus:hover { box-shadow: 0 20px 50px rgba(116, 195, 101, 0.1); }

.scenario-card.base { border-color: rgba(219, 230, 76, 0.5); background: rgba(219, 230, 76, 0.05); }

.sc-flag {
    position: absolute;
    top: -11px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--lime);
    color: var(--navy);
    font-size: 0.64rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 4px 14px;
    border-radius: 99px;
    box-shadow: 0 4px 16px rgba(219, 230, 76, 0.4);
}

.sc-rate { display: block; font-family: var(--display); font-weight: 800; letter-spacing: -0.03em; font-size: 2rem; color: var(--text); font-variant-numeric: tabular-nums; }
.sc-name { display: block; font-size: 0.8rem; color: var(--text-3); margin-bottom: 1rem; }
.sc-value { display: block; font-family: var(--display); font-weight: 800; letter-spacing: -0.02em; font-size: 1.5rem; line-height: 1.2; font-variant-numeric: tabular-nums; }
.scenario-card.deficit .sc-value { color: var(--neg-light); }
.scenario-card.surplus .sc-value { color: var(--green-light); }
.sc-class { display: block; font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-3); margin-bottom: 0.9rem; }
.scenario-card p { font-size: 0.86rem; color: var(--text-2); }

/* ---------------- CAP 07 — Monte Carlo ---------------- */
.mc-panel {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 2rem;
    backdrop-filter: blur(10px);
}

.mc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 1.4rem;
}

.mc-status {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--text-2);
    font-variant-numeric: tabular-nums;
}

.mc-pulse {
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--lime);
    box-shadow: 0 0 0 rgba(219, 230, 76, 0.6);
    animation: pulse 1.6s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(219, 230, 76, 0.45); }
    70% { box-shadow: 0 0 0 10px rgba(219, 230, 76, 0); }
    100% { box-shadow: 0 0 0 0 rgba(219, 230, 76, 0); }
}

.mc-replay {
    background: rgba(219, 230, 76, 0.08);
    border: 1px solid rgba(219, 230, 76, 0.4);
    color: var(--lime);
    font-family: var(--sans);
    font-size: 0.82rem;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: 99px;
    cursor: pointer;
    transition: all 0.3s;
}

.mc-replay:hover { background: var(--lime); color: var(--navy); }

#mc-canvas { width: 100%; display: block; }

.mc-axis {
    display: flex;
    justify-content: space-between;
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--text-3);
    padding: 0.5rem 0.3rem 0;
}

.mc-kpis {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 1rem;
    margin-top: 1.6rem;
}

.mc-kpi {
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 1.1rem 1.2rem;
    background: rgba(246, 247, 237, 0.02);
}

.mc-kpi b { display: block; font-family: var(--display); font-weight: 800; letter-spacing: -0.02em; font-size: 1.6rem; line-height: 1.2; font-variant-numeric: tabular-nums; }
.mc-kpi span { font-size: 0.79rem; color: var(--text-2); line-height: 1.45; display: block; margin-top: 0.3rem; }

.mc-kpi.green b { color: var(--green-light); }
.mc-kpi.green { border-color: rgba(116, 195, 101, 0.35); background: rgba(116, 195, 101, 0.05); }
.mc-kpi.red b { color: var(--neg-light); }
.mc-kpi.red { border-color: rgba(255, 110, 97, 0.3); background: rgba(255, 110, 97, 0.04); }
.mc-kpi.amber b { color: var(--lime); font-size: 1.12rem; padding-top: 0.35rem; }
.mc-kpi.amber { border-color: rgba(219, 230, 76, 0.3); }
.mc-kpi.neutral b { color: var(--text); }

/* ---------------- CAP 08 — ponto de virada ---------------- */
.tipping-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 2.4rem;
    margin-bottom: 2.8rem;
    backdrop-filter: blur(10px);
}

@media (max-width: 820px) { .tipping-panel { grid-template-columns: 1fr; } }

.tipping-control label { display: block; font-size: 0.9rem; color: var(--text-2); margin-bottom: 0.4rem; }

.tipping-value {
    font-family: var(--display);
    font-size: 3.2rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--lime);
    line-height: 1.1;
    margin-bottom: 1rem;
    font-variant-numeric: tabular-nums;
}

#theta-slider {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 8px;
    border-radius: 99px;
    background: linear-gradient(90deg, var(--neg) 0%, var(--lime) 49%, var(--green) 60%);
    outline: none;
    cursor: pointer;
}

#theta-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 26px; height: 26px;
    border-radius: 50%;
    background: var(--white);
    border: 4px solid var(--lime);
    box-shadow: 0 2px 14px rgba(219, 230, 76, 0.55);
    cursor: grab;
    transition: transform 0.15s;
}

#theta-slider::-webkit-slider-thumb:hover { transform: scale(1.12); }

#theta-slider::-moz-range-thumb {
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--white);
    border: 4px solid var(--lime);
    box-shadow: 0 2px 14px rgba(219, 230, 76, 0.55);
    cursor: grab;
}

.tipping-marks { position: relative; height: 64px; margin-top: 10px; }

.tipping-marks span {
    position: absolute;
    transform: translateX(-50%);
    font-family: var(--mono);
    font-size: 0.66rem;
    color: var(--text-3);
    text-align: center;
    padding-top: 12px;
}

.tipping-marks span i {
    position: absolute;
    top: 0; left: 50%;
    width: 1px; height: 9px;
    background: var(--text-3);
}

.tipping-marks span:not(.be) { padding-top: 34px; }
.tipping-marks span:not(.be) i { height: 31px; opacity: 0.45; }

.tipping-marks span.be { color: var(--green-light); font-weight: 600; }
.tipping-marks span.be i { background: var(--green); }

.tipping-result { display: flex; flex-direction: column; justify-content: center; }

.tipping-bar-wrap {
    position: relative;
    height: 56px;
    background: rgba(246, 247, 237, 0.04);
    border-radius: 16px;
    margin-bottom: 1.2rem;
    overflow: hidden;
}

.tipping-zero {
    position: absolute;
    left: 50%; top: 0; bottom: 0;
    width: 2px;
    background: rgba(246, 247, 237, 0.3);
    z-index: 2;
}

.tipping-bar {
    position: absolute;
    top: 8px; bottom: 8px;
    left: 50%;
    width: 0;
    border-radius: 12px;
    background: var(--neg);
    transition: all 0.35s var(--ease);
}

.tipping-readout { display: flex; align-items: baseline; gap: 1rem; flex-wrap: wrap; }
.tipping-readout b { font-family: var(--display); font-weight: 800; letter-spacing: -0.03em; font-size: clamp(1.5rem, 2.6vw, 2.1rem); line-height: 1.2; font-variant-numeric: tabular-nums; white-space: nowrap; }
.tipping-readout span { font-family: var(--mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 500; }

.tipping-note { font-size: 0.9rem; color: var(--text-2); margin-top: 0.8rem; }

.policy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.3rem;
    margin-bottom: 3rem;
}

.policy-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 1.8rem 1.6rem;
    backdrop-filter: blur(10px);
    transition: transform 0.4s var(--ease), border-color 0.4s;
}

.policy-card:hover { transform: translateY(-5px); border-color: rgba(116, 195, 101, 0.4); }

.policy-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px; height: 46px;
    border-radius: 14px;
    background: rgba(219, 230, 76, 0.08);
    border: 1px solid rgba(219, 230, 76, 0.25);
    color: var(--lime);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.policy-card h4 { font-family: var(--display); font-size: 1.1rem; font-weight: 700; letter-spacing: -0.015em; margin-bottom: 0.6rem; }
.policy-card p { font-size: 0.88rem; color: var(--text-2); }

.timeline-block {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 2.2rem;
    backdrop-filter: blur(10px);
}

.timeline {
    display: grid;
    grid-template-columns: 1fr 4fr 1.2fr;
    gap: 6px;
    margin: 1.6rem 0;
}

.tl-seg {
    border-radius: 14px;
    padding: 1rem 1.1rem;
    position: relative;
    overflow: hidden;
}

.tl-seg.calib { background: linear-gradient(180deg, rgba(30, 72, 143, 0.4), rgba(30, 72, 143, 0.15)); border: 1px solid rgba(91, 141, 239, 0.4); }
.tl-seg.conv  { background: linear-gradient(90deg, rgba(219, 230, 76, 0.14), rgba(219, 230, 76, 0.02)); border: 1px solid rgba(219, 230, 76, 0.28); }
.tl-seg.free  { background: linear-gradient(180deg, rgba(116, 195, 101, 0.18), rgba(116, 195, 101, 0.06)); border: 1px solid rgba(116, 195, 101, 0.35); }

.tl-seg b { display: block; font-size: 0.92rem; font-variant-numeric: tabular-nums; }
.tl-seg span { display: block; font-family: var(--mono); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-3); margin: 2px 0 6px; }
.tl-seg p { font-size: 0.8rem; color: var(--text-2); }

@media (max-width: 720px) { .timeline { grid-template-columns: 1fr; } }

.timeline-note { font-size: 0.93rem; color: var(--text-2); }

/* ---------------- Finale ---------------- */
.finale {
    position: relative;
    padding: 8rem 1.5rem 3rem;
    background:
        radial-gradient(ellipse 60% 50% at 50% 0%, rgba(30, 72, 143, 0.28), transparent),
        var(--bg-soft);
    border-top: 1px solid var(--line);
}

.finale-inner {
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
}

.finale h2 {
    font-family: var(--display);
    font-weight: 800;
    letter-spacing: -0.03em;
    font-size: clamp(1.9rem, 4.2vw, 3rem);
    margin-bottom: 1.4rem;
}

.finale h2 em { color: var(--lime); }
.finale p { color: var(--text-2); font-size: 1.08rem; max-width: 680px; margin: 0 auto 2.6rem; }

.finale-artifacts {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.artifact {
    border: 1px solid var(--line);
    background: rgba(246, 247, 237, 0.03);
    border-radius: 18px;
    padding: 1.1rem 1.7rem;
    min-width: 180px;
}

.artifact b { display: block; font-family: var(--display); font-weight: 800; font-size: 1.35rem; color: var(--lime); }
.artifact span { font-size: 0.78rem; color: var(--text-3); }

.btn-finale {
    display: inline-flex;
    flex-direction: column;
    gap: 4px;
    text-decoration: none;
    color: var(--navy);
    background: linear-gradient(120deg, var(--lime), #c8d63e);
    padding: 1.2rem 2.6rem;
    border-radius: 20px;
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    box-shadow: 0 14px 44px rgba(219, 230, 76, 0.3);
    transition: transform 0.35s var(--ease), box-shadow 0.35s;
}

.btn-finale span { font-size: 0.8rem; font-weight: 500; opacity: 0.8; }
.btn-finale:hover { transform: translateY(-4px) scale(1.02); box-shadow: 0 22px 60px rgba(219, 230, 76, 0.45); }

/* botão magnético: partículas atraídas no hover/toque */
.btn-finale { position: relative; touch-action: manipulation; }

.btn-finale-label { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 1.1rem !important; font-weight: 800 !important; opacity: 1 !important; }

.magnet-icon { transition: transform 0.3s var(--ease); }
.btn-finale.attracting .magnet-icon { transform: scale(1.2) rotate(-8deg); }

/* invisível em repouso; no hover, fluxo contínuo de partículas sugadas */
.btn-finale .m-particle {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--lime);
    box-shadow: 0 0 10px rgba(219, 230, 76, 0.8);
    opacity: 0;
    pointer-events: none;
}

.btn-finale.attracting .m-particle {
    animation: attractFlow 1.3s ease-in infinite;
    animation-delay: var(--pd);
}

@keyframes attractFlow {
    0%   { opacity: 0; transform: translate(calc(-50% + var(--px)), calc(-50% + var(--py))) scale(1); }
    25%  { opacity: 1; }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(0.2); }
}

@media (prefers-reduced-motion: reduce) {
    .btn-finale.attracting .m-particle { animation: none; }
}

/* ---------------- Créditos (carrossel) ---------------- */
.credits { margin-top: 4.5rem; text-align: left; }

.credits-kicker {
    display: block;
    text-align: center;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 1.4rem;
}

.credits-card {
    display: flex;
    align-items: center;
    gap: 1.8rem;
    max-width: 640px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 1.8rem 2rem;
    backdrop-filter: blur(10px);
    min-height: 200px;
}

.credits-avatar {
    flex: 0 0 92px;
    width: 92px;
    height: 92px;
    border-radius: 28px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--blue), #0d2c5a);
    border: 2px solid rgba(219, 230, 76, 0.45);
    box-shadow: 0 8px 26px rgba(0, 0, 0, 0.4);
    font-family: var(--display);
    font-weight: 800;
    font-size: 1.7rem;
    color: var(--lime);
    transition: transform 0.5s var(--ease);
}

.credits-avatar img { width: 100%; height: 100%; object-fit: cover; }

/* logos institucionais: traço branco sobre o gradiente navy do avatar */
.credits-avatar img.logo {
    object-fit: contain;
    padding: 16px;
    filter: invert(1);
    mix-blend-mode: screen;
}

.credits-body { flex: 1; min-width: 0; }

.credits-name { display: block; font-family: var(--display); font-weight: 800; font-size: 1.15rem; letter-spacing: -0.015em; }
.credits-role { display: block; font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--lime); margin: 3px 0 10px; }
.credits-desc { font-size: 0.9rem; color: var(--text-2); line-height: 1.6; min-height: 7.2em; }

.credits-desc .w {
    display: inline-block;
    filter: blur(6px);
    opacity: 0;
    transform: translateY(4px);
    animation: wordIn 0.35s var(--ease) forwards;
    animation-delay: var(--wd);
}

@keyframes wordIn {
    to { filter: blur(0); opacity: 1; transform: translateY(0); }
}

.credits-nav { display: flex; align-items: center; gap: 0.9rem; margin-top: 1.1rem; }

.credits-nav button {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(219, 230, 76, 0.35);
    background: rgba(219, 230, 76, 0.07);
    color: var(--lime);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    touch-action: manipulation;
}

.credits-nav button:hover { background: var(--lime); color: var(--navy); }

.credits-dots { display: flex; gap: 7px; }

.credits-dots i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: rgba(246, 247, 237, 0.2);
    transition: all 0.3s;
    cursor: pointer;
}

.credits-dots i.on { background: var(--lime); box-shadow: 0 0 8px rgba(219, 230, 76, 0.7); }

@media (max-width: 560px) {
    .credits-card { flex-direction: column; text-align: center; padding: 1.6rem 1.3rem; }
    .credits-nav { justify-content: center; }
    .credits-desc { min-height: 10.5em; }
}

/* ---------------- Footer ---------------- */
.study-footer {
    max-width: 1080px;
    margin: 6rem auto 0;
    padding: 2.4rem 0 1.4rem;
    border-top: 1px solid var(--line);
    display: flex;
    flex-wrap: wrap;
    gap: 1.6rem;
    justify-content: space-between;
    align-items: center;
}

.footer-author { display: flex; align-items: center; gap: 1rem; }

.footer-author img {
    width: 54px; height: 54px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--lime);
    box-shadow: 0 4px 14px rgba(219, 230, 76, 0.25);
}

.footer-author div { display: flex; flex-direction: column; gap: 2px; }
.footer-author b { font-size: 0.95rem; }
.footer-author span { font-size: 0.78rem; color: var(--text-3); }

.footer-links { display: flex; gap: 1.4rem; }

.footer-links a {
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.86rem;
    font-weight: 600;
    border-bottom: 1px solid transparent;
    transition: all 0.25s;
}

.footer-links a:hover { color: var(--lime); border-color: var(--lime); }

.footer-disclaimer {
    flex-basis: 100%;
    font-size: 0.64rem;
    color: var(--text-3);
    line-height: 1.6;
    text-align: center;
    margin-top: 0.6rem;
    opacity: 0.85;
}

/* ===================================================================
   MELHORIAS DE UX — sumário, glossário, legendas, fontes, print
   =================================================================== */

/* títulos sem quebras órfãs + parágrafos com quebra inteligente */
.chapter h2, .finale h2, .hero-title { text-wrap: balance; }
.chapter-lead, .chapter p, .callout p, .big-quote p { text-wrap: pretty; }

/* ---------- Sumário no hero ---------- */
.hero-toc { margin-bottom: 2rem; }

.hero-toc-meta {
    display: block;
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 0.8rem;
}

.hero-toc-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    max-width: 720px;
    margin: 0 auto;
}

.hero-toc-chips a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-2);
    border: 1px solid var(--line);
    background: rgba(246, 247, 237, 0.03);
    padding: 6px 13px;
    border-radius: 99px;
    transition: all 0.3s var(--ease);
}

.hero-toc-chips a b { font-family: var(--mono); font-weight: 500; font-size: 0.66rem; color: var(--lime); }

.hero-toc-chips a:hover {
    border-color: rgba(219, 230, 76, 0.45);
    background: rgba(219, 230, 76, 0.07);
    color: var(--text);
    transform: translateY(-2px);
}

@media (max-width: 600px) { .hero-toc-chips a { font-size: 0.72rem; padding: 5px 10px; } }

/* ---------- Glossário (tooltip de siglas) ---------- */
.gloss {
    cursor: help;
    position: relative;
    border-bottom: 1px dashed rgba(219, 230, 76, 0.55);
}

.gloss::after {
    content: attr(data-def);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    width: max-content;
    max-width: 280px;
    font-size: 0.78rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--text);
    background: rgba(3, 24, 46, 0.97);
    border: 1px solid rgba(219, 230, 76, 0.35);
    border-radius: 12px;
    padding: 10px 14px;
    box-shadow: 0 12px 34px rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
    z-index: 60;
    white-space: normal;
    text-align: left;
}

.gloss:hover::after, .gloss:focus-visible::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.gloss:focus-visible { outline: none; border-bottom-color: var(--lime); }

/* ---------- Anéis de risco: resto verde + legenda ---------- */
.risk-ring .ring-bg { stroke: rgba(116, 195, 101, 0.22); }

.ring-legend {
    display: flex;
    justify-content: center;
    gap: 1.2rem;
    flex-wrap: wrap;
    font-size: 0.74rem;
    color: var(--text-2);
    margin: -0.4rem 0 1.2rem;
}

.ring-legend i {
    display: inline-block;
    width: 9px; height: 9px;
    border-radius: 50%;
    margin-right: 6px;
}

.ring-legend .leg-migra { background: var(--neg); }
.ring-legend .leg-fica { background: var(--green); }

/* ---------- Slider do ponto de virada: convite ao toque ---------- */
@keyframes thumbNudge {
    0%, 100% { box-shadow: 0 2px 14px rgba(219, 230, 76, 0.55); }
    50% { box-shadow: 0 0 0 12px rgba(219, 230, 76, 0.18), 0 2px 14px rgba(219, 230, 76, 0.7); }
}

#theta-slider.nudge::-webkit-slider-thumb { animation: thumbNudge 1.6s ease-in-out infinite; }
#theta-slider.nudge::-moz-range-thumb { animation: thumbNudge 1.6s ease-in-out infinite; }

@media (prefers-reduced-motion: reduce) {
    #theta-slider.nudge::-webkit-slider-thumb, #theta-slider.nudge::-moz-range-thumb { animation: none; }
}

/* ---------- Fontes e dados ---------- */
.sources { margin-top: 4.5rem; }

.sources .sources-kicker-2 { margin-top: 2.6rem; }

/* ---------- Carrossel de referências ---------- */
.refs-carousel { position: relative; max-width: 820px; margin: 0 auto; }

.refs-cards {
    grid-template-columns: none;
    grid-template-rows: repeat(2, 1fr);
    grid-auto-flow: column;
    grid-auto-columns: 252px;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    padding: 2px;
    -webkit-overflow-scrolling: touch;
}

.refs-cards::-webkit-scrollbar { display: none; }

.refs-cards li { scroll-snap-align: start; }

.refs-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: var(--bg-soft);
    color: var(--text-2);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    transition: color 0.25s ease, border-color 0.25s ease, opacity 0.25s ease;
}

.refs-arrow-prev { left: -19px; }
.refs-arrow-next { right: -19px; }

.refs-arrow:hover { color: var(--lime); border-color: rgba(219, 230, 76, 0.45); }

.refs-arrow[disabled] { opacity: 0.3; pointer-events: none; }

@media (max-width: 920px) {
    .refs-arrow-prev { left: 4px; }
    .refs-arrow-next { right: 4px; }
    .refs-arrow { background: rgba(3, 24, 46, 0.85); }
}

.refs-cards b a {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px dotted rgba(155, 217, 143, 0.5);
}

.refs-cards b a:hover { color: var(--lime); border-bottom-color: var(--lime); }

.refs-cards li span em { font-style: italic; }

.sources-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 10px;
    max-width: 820px;
    margin: 0 auto;
    text-align: left;
}

.sources-list li {
    border: 1px solid var(--line);
    background: rgba(246, 247, 237, 0.025);
    border-radius: 14px;
    padding: 0.8rem 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sources-list b { font-size: 0.85rem; color: var(--text); }
.sources-list span { font-size: 0.76rem; color: var(--text-2); line-height: 1.45; }

/* ---------- Nav lateral: rótulo visível no capítulo ativo ---------- */
.chapter-nav a.active::after { opacity: 1; transform: translateY(-50%) translateX(0); }

/* ---------- Impressão ---------- */
@media print {
    body { background: #fff !important; color: #111 !important; }
    .progress-bar, .chapter-nav, .site-header, .scroll-cue, #hero-canvas,
    .mc-replay, .btn-finale, .region-map-block, .credits-nav, .refs-arrow { display: none !important; }
    .refs-cards {
        grid-template-rows: none;
        grid-auto-flow: row;
        grid-template-columns: repeat(2, 1fr);
        overflow: visible;
    }
    .hero { min-height: auto; padding: 3rem 1rem 2rem; }
    .chapter, .finale { padding: 2rem 1rem; }
    .reveal { opacity: 1 !important; transform: none !important; }
    .sources-list b, .sources-list span, .sources-list a { color: #111 !important; }
    b, strong, .chapter h2, .chapter h3, .stat-value, .stat-label,
    .chapter-lead, .chapter p, .callout p, .big-quote p, .hero-sub,
    .hero-title, .duality-label, .k-step span, .scale-side span,
    .mc-kpi span, .tipping-note, .timeline-note { color: #111 !important; }
    .stat-card, .flow-card, .callout, .duality, .vaf-block, .risk-card,
    .formula-card, .gauge-card, .huff-stage, .k-explain, .epl-scale,
    .scenario-card, .mc-panel, .tipping-panel, .policy-card, .timeline-block {
        background: #fff !important;
        border-color: #ccc !important;
        backdrop-filter: none !important;
        break-inside: avoid;
    }
}