/* ============================================================
   Tributário 360 — Business Plan
   Mobile-first · Login + Apresentação em scroll responsivo
   ============================================================ */

:root {
    --c-navy-900: #0a1f44;
    --c-navy-800: #102a5c;
    --c-navy-700: #1e3a8a;
    --c-navy-600: #2447b0;
    --c-blue-600: #2563eb;
    --c-blue-500: #3b82f6;
    --c-blue-100: #dbeafe;
    --c-gray-900: #111827;
    --c-gray-800: #1f2937;
    --c-gray-700: #374151;
    --c-gray-600: #4b5563;
    --c-gray-500: #6b7280;
    --c-gray-400: #9ca3af;
    --c-gray-300: #d1d5db;
    --c-gray-200: #e5e7eb;
    --c-gray-100: #f3f4f6;
    --c-gray-50:  #f9fafb;
    --c-white:    #ffffff;
    --c-orange:   #f59e0b;
    --c-orange-d: #d97706;
    --c-orange-l: #fef3c7;
    --c-green:    #10b981;
    --c-green-d:  #059669;
    --shadow-sm:  0 1px 2px rgba(10,31,68,0.06);
    --shadow-md:  0 4px 16px rgba(10,31,68,0.08);
    --shadow-lg:  0 18px 40px rgba(10,31,68,0.16);
    --shadow-xl:  0 30px 60px rgba(10,31,68,0.22);
    --radius:     16px;
    --radius-sm:  10px;
    --radius-xs:  8px;
    --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --header-h:   60px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html, body { margin: 0; padding: 0; }
body {
    font-family: var(--font-sans);
    color: var(--c-gray-900);
    background: var(--c-gray-50);
    line-height: 1.55;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img, svg, canvas { max-width: 100%; }
a { color: var(--c-blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============================================================
   LOGIN
   ============================================================ */

body.login-body {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 16px;
    background:
        radial-gradient(1200px 600px at 10% -20%, rgba(37,99,235,0.20), transparent 60%),
        radial-gradient(900px 500px at 110% 110%, rgba(245,158,11,0.10), transparent 60%),
        linear-gradient(135deg, var(--c-navy-900) 0%, var(--c-navy-700) 100%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--c-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    padding: 32px 24px;
}
@media (min-width: 480px) { .login-card { padding: 40px 36px; } }

.login-header { text-align: center; margin-bottom: 24px; }

.brand-mark {
    width: 64px; height: 64px;
    margin: 0 auto 14px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--c-navy-700), var(--c-blue-500));
    color: var(--c-white);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 22px;
    letter-spacing: -0.5px;
    box-shadow: var(--shadow-md);
}
.brand-mark span { color: var(--c-orange); }
.brand-mark.sm { width: 32px; height: 32px; border-radius: 9px; font-size: 13px; box-shadow: none; }

.login-header h1 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    color: var(--c-navy-900);
    letter-spacing: -0.3px;
}
.login-sub {
    margin: 6px 0 0;
    font-size: 12px;
    color: var(--c-gray-500);
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

.alert {
    padding: 12px 14px;
    border-radius: var(--radius-xs);
    font-size: 14px;
    margin-bottom: 18px;
}
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }

.field { display: block; margin-bottom: 16px; }
.field span {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--c-gray-700);
    margin-bottom: 6px;
}
.field input {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--c-gray-300);
    border-radius: var(--radius-xs);
    font-size: 16px;
    font-family: inherit;
    transition: border-color .15s, box-shadow .15s;
    background: var(--c-white);
    color: var(--c-gray-900);
}
.field input:focus {
    outline: none;
    border-color: var(--c-blue-500);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}

.password-wrap { position: relative; }
.password-wrap input { padding-right: 44px; }
.toggle-password {
    position: absolute; top: 50%; right: 6px;
    transform: translateY(-50%);
    background: transparent; border: 0;
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    color: var(--c-gray-500);
    cursor: pointer;
    border-radius: 6px;
    transition: color .15s, background-color .15s;
}
.toggle-password:hover { color: var(--c-navy-700); background: var(--c-gray-100); }
.toggle-password:focus { outline: none; color: var(--c-blue-600); box-shadow: 0 0 0 3px rgba(37,99,235,0.18); }
.toggle-password .icon-eye-off { display: none; }
.toggle-password.is-showing .icon-eye { display: none; }
.toggle-password.is-showing .icon-eye-off { display: block; }

.btn-primary {
    width: 100%;
    padding: 13px;
    background: linear-gradient(135deg, var(--c-navy-700), var(--c-blue-600));
    color: var(--c-white);
    border: 0;
    border-radius: var(--radius-xs);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: transform .15s, box-shadow .15s, filter .15s;
    margin-top: 6px;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); filter: brightness(1.05); }
.btn-primary:active { transform: translateY(0); }

.login-footer {
    margin-top: 26px;
    text-align: center;
    font-size: 12px;
    color: var(--c-gray-500);
    line-height: 1.5;
}
.login-footer .copyright { margin-top: 8px; opacity: 0.75; }

/* ============================================================
   PRESENTATION (one-page scroll)
   ============================================================ */

body.bp-body { background: var(--c-gray-50); padding-top: var(--header-h); }

/* Header */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--header-h);
    background: rgba(255,255,255,0.92);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--c-gray-200);
    z-index: 50;
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 12px;
}
.site-header .brand {
    display: flex; align-items: center; gap: 10px;
    font-size: 15px;
    color: var(--c-gray-900);
    font-weight: 600;
    text-decoration: none;
    letter-spacing: -0.2px;
    flex-shrink: 0;
}
.site-header .brand:hover { text-decoration: none; }
.site-header .brand-name strong { color: var(--c-navy-700); font-weight: 700; }

.site-nav {
    display: none;
    flex: 1;
    justify-content: center;
    gap: 18px;
}
.site-nav a {
    font-size: 13px;
    font-weight: 500;
    color: var(--c-gray-700);
    padding: 6px 4px;
    border-bottom: 2px solid transparent;
    transition: color .15s, border-color .15s;
}
.site-nav a:hover { color: var(--c-navy-700); border-bottom-color: var(--c-navy-700); text-decoration: none; }

.site-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.user-chip {
    display: none;
    font-size: 12px;
    color: var(--c-gray-700);
    padding: 4px 10px;
    background: var(--c-gray-100);
    border-radius: 999px;
    font-weight: 500;
}
.logout {
    font-size: 12px;
    color: var(--c-navy-700);
    padding: 6px 12px;
    background: var(--c-white);
    border: 1px solid var(--c-gray-200);
    border-radius: 999px;
    font-weight: 600;
    transition: background .15s, color .15s, border-color .15s;
}
.logout:hover { background: var(--c-navy-700); color: var(--c-white); border-color: var(--c-navy-700); text-decoration: none; }

@media (min-width: 720px) {
    .site-header { padding: 0 28px; gap: 24px; }
    .site-nav { display: flex; }
    .user-chip { display: inline-block; }
}

/* Progress bar */
.progress-bar {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    height: 3px;
    background: transparent;
    z-index: 40;
    pointer-events: none;
}
.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--c-navy-700), var(--c-blue-500), var(--c-orange));
    transform: scaleX(0);
    transform-origin: 0 50%;
    transition: transform .12s linear;
}

/* Slide / section */
.slide {
    position: relative;
    padding: 56px 18px 64px;
    border-bottom: 1px solid var(--c-gray-200);
    background: var(--c-white);
    opacity: 0;
    transform: translateY(14px);
    transition: opacity .55s ease, transform .55s ease;
}
.slide.alt { background: var(--c-gray-50); }
.slide.in { opacity: 1; transform: none; }

.slide-inner {
    max-width: 1140px;
    margin: 0 auto;
}

/* Slide meta (top label) */
.slide-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: var(--c-gray-500);
    font-weight: 600;
    margin-bottom: 18px;
}
.slide-meta.on-dark, .on-dark .slide-meta { color: rgba(255,255,255,0.65); }

/* Eyebrow */
.eyebrow {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--c-orange-d);
    background: var(--c-orange-l);
    padding: 5px 12px;
    border-radius: 999px;
    margin-bottom: 14px;
}
.eyebrow.on-dark, .on-dark .eyebrow { color: var(--c-orange); background: rgba(245,158,11,0.18); }

/* Headings */
.slide h1, .slide h2, .slide h3 {
    color: var(--c-navy-900);
    letter-spacing: -0.5px;
    line-height: 1.2;
    margin: 0 0 14px;
}
.slide h1 { font-size: 28px; font-weight: 800; }
.slide h2 { font-size: 22px; font-weight: 700; }
.slide h3 { font-size: 16px; font-weight: 600; color: var(--c-navy-700); margin-top: 4px; }
.slide.alt-dark h1, .slide.alt-dark h2, .slide.alt-dark h3 { color: var(--c-white); }
.on-dark { color: rgba(255,255,255,0.92); }
.on-dark h1, .on-dark h2, .on-dark h3 { color: var(--c-white); }

.slide p { color: var(--c-gray-700); margin: 0 0 14px; font-size: 15px; line-height: 1.65; }
.on-dark p { color: rgba(255,255,255,0.85); }

.mt { margin-top: 18px; }

/* HERO */
.slide.hero {
    background: linear-gradient(135deg, var(--c-navy-900) 0%, var(--c-navy-700) 100%);
    color: var(--c-white);
    padding: 64px 18px 72px;
}
.slide.hero.alt-dark { background: linear-gradient(160deg, var(--c-navy-900) 0%, var(--c-navy-800) 60%, #14306b 100%); }

.hero-title {
    font-size: 32px !important;
    line-height: 1.1 !important;
    margin: 8px 0 14px !important;
    color: var(--c-white) !important;
    font-weight: 800;
    letter-spacing: -0.8px;
}
.hero-title .accent { color: var(--c-orange); }

.slide.hero p.hero-lead {
    font-size: 16px;
    color: #ffffff;
    max-width: 720px;
    margin-bottom: 22px;
    line-height: 1.6;
    font-weight: 500;
}

.slide.hero p.hero-lead-alt {
    font-size: 16px;
    color: #ffffff;
    max-width: 880px;
    margin: 0 0 8px;
    line-height: 1.65;
    font-weight: 400;
}
.slide.hero p.hero-lead-alt strong { color: var(--c-orange); font-weight: 700; }

.hero-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    margin: 20px 0 26px;
}
.hero-stats > div {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
}
.hero-stats .kicker {
    display: block;
    font-size: 10px;
    letter-spacing: 1.5px;
    font-weight: 700;
    color: var(--c-orange);
    text-transform: uppercase;
    margin-bottom: 4px;
}
.hero-stats strong {
    font-size: 19px;
    color: var(--c-white);
    font-weight: 700;
    letter-spacing: -0.4px;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--c-orange);
    color: var(--c-navy-900);
    padding: 11px 20px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 10px 28px rgba(245,158,11,0.30);
    transition: transform .15s, box-shadow .15s;
    margin-top: 4px;
}
.hero-cta:hover { transform: translateY(-2px); text-decoration: none; box-shadow: 0 14px 32px rgba(245,158,11,0.40); }

/* Cards */
.cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin: 18px 0;
}
.card {
    background: var(--c-white);
    border: 1.5px solid var(--c-gray-200);
    border-radius: var(--radius-sm);
    padding: 16px;
    box-shadow: var(--shadow-sm);
    transition: transform .15s, box-shadow .15s, border-color .15s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--c-gray-300); }
.slide.alt .card { background: var(--c-white); }
.card .num {
    font-size: 30px;
    font-weight: 800;
    color: var(--c-navy-700);
    letter-spacing: -1px;
    line-height: 1.05;
}
.card .num.accent { color: var(--c-orange-d); }
.card .num.success { color: var(--c-green-d); }
.card .label {
    margin-top: 6px;
    font-size: 13px;
    color: var(--c-gray-700);
    line-height: 1.45;
}
.card.dark {
    background: linear-gradient(135deg, var(--c-navy-800), var(--c-navy-700));
    border-color: var(--c-navy-700);
    color: var(--c-white);
}
.card.dark .num { color: var(--c-white); }
.card.dark .label { color: rgba(255,255,255,0.78); }

.card.feat strong { display: block; color: var(--c-navy-900); font-size: 15px; margin-bottom: 4px; }
.card.feat .label { margin-top: 0; }

.card.diff {
    position: relative;
    padding-left: 56px;
}
.card.diff strong { display: block; color: var(--c-navy-900); font-size: 15px; margin-bottom: 4px; }
.card.diff .label { margin-top: 0; }
.card.diff .diff-num {
    position: absolute;
    left: 14px;
    top: 14px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c-navy-700), var(--c-blue-600));
    color: var(--c-white);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 14px;
    box-shadow: var(--shadow-sm);
}

.stack { display: grid; gap: 12px; }

/* Two-column layouts */
.two-col {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    margin: 18px 0;
}

/* Pills */
.pills { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.pill {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 999px;
    background: var(--c-gray-100);
    color: var(--c-gray-700);
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
}
.pill.blue   { background: var(--c-blue-100); color: var(--c-blue-600); }
.pill.green  { background: rgba(16,185,129,0.14); color: var(--c-green-d); }
.pill.orange { background: var(--c-orange-l); color: var(--c-orange-d); }

/* Callout */
.callout {
    background: linear-gradient(135deg, rgba(37,99,235,0.07), rgba(16,185,129,0.07));
    border-left: 4px solid var(--c-blue-600);
    padding: 14px 16px;
    border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
    color: var(--c-navy-900);
    font-size: 14px;
    line-height: 1.6;
    margin: 18px 0;
}
.callout strong { color: var(--c-navy-700); font-weight: 700; }
.callout.small { font-size: 13px; padding: 12px 14px; }

/* Checklist (UL) */
.checklist { list-style: none; padding-left: 0; margin: 8px 0 14px; }
.checklist li {
    position: relative;
    padding-left: 26px;
    margin-bottom: 8px;
    font-size: 14px;
    line-height: 1.55;
    color: var(--c-gray-700);
}
.checklist li::before {
    content: "";
    position: absolute;
    left: 4px; top: 7px;
    width: 14px; height: 14px;
    background: var(--c-blue-100);
    border-radius: 50%;
    box-shadow: inset 0 0 0 2px var(--c-blue-600);
}
.checklist li strong { color: var(--c-navy-900); }
.checklist.compact li { margin-bottom: 5px; font-size: 13.5px; }
.checklist.on-dark li, .on-dark .checklist li { color: rgba(255,255,255,0.88); }
.checklist.on-dark li::before, .on-dark .checklist li::before { background: rgba(255,255,255,0.10); box-shadow: inset 0 0 0 2px var(--c-orange); }
.checklist.on-dark li strong, .on-dark .checklist li strong { color: var(--c-white); }
.checklist.two-up { display: grid; grid-template-columns: 1fr; gap: 0 18px; }

/* Tables */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 12px 0; border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); }
.slide table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12.5px;
    background: var(--c-white);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.slide table th {
    background: var(--c-navy-700);
    color: var(--c-white);
    text-align: left;
    padding: 8px 10px;
    font-weight: 600;
    font-size: 11.5px;
    letter-spacing: 0.2px;
}
.slide table td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--c-gray-100);
    color: var(--c-gray-700);
}
.slide table tr:last-child td { border-bottom: 0; }
.slide table tr.total { background: var(--c-gray-50); font-weight: 700; }
.slide table tr.total td { color: var(--c-navy-900); }
.slide table td.num, .slide table th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.slide table.on-dark, .on-dark .slide table { background: rgba(255,255,255,0.04); }
.slide table.on-dark th, .on-dark .slide table th { background: rgba(255,255,255,0.10); color: var(--c-white); }
.slide table.on-dark td, .on-dark .slide table td { color: rgba(255,255,255,0.88); border-bottom-color: rgba(255,255,255,0.08); }
.slide table.on-dark tr.total, .on-dark .slide table tr.total { background: rgba(255,255,255,0.06); }
.slide table.on-dark tr.total td, .on-dark .slide table tr.total td { color: var(--c-white); }

/* Flow / steps */
.flow {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    margin: 18px 0;
}
.flow .step {
    background: var(--c-white);
    border: 1.5px solid var(--c-gray-200);
    border-top: 4px solid var(--c-blue-600);
    border-radius: var(--radius-xs);
    padding: 12px 14px;
    font-size: 13.5px;
    line-height: 1.5;
    color: var(--c-gray-700);
    box-shadow: var(--shadow-sm);
}
.flow .step strong { display: block; color: var(--c-navy-900); margin-bottom: 3px; font-size: 14.5px; }
.flow .step .step-num {
    display: inline-block;
    background: var(--c-blue-600);
    color: var(--c-white);
    border-radius: 999px;
    padding: 2px 9px;
    font-size: 11px;
    font-weight: 700;
    margin-right: 6px;
    vertical-align: middle;
    letter-spacing: 0.5px;
}

/* Charts */
.chart-wrap {
    background: var(--c-white);
    border: 1.5px solid var(--c-gray-200);
    border-radius: var(--radius-sm);
    padding: 14px;
    box-shadow: var(--shadow-sm);
    height: 260px;
    position: relative;
}
.chart-wrap.chart-wide { height: 280px; }
.chart-wrap canvas { width: 100% !important; height: 100% !important; }
.chart-side { display: flex; flex-direction: column; gap: 8px; }
.chart-caption { font-size: 12px; color: var(--c-gray-500); text-align: center; margin: 0; }

.footnote {
    font-size: 11.5px;
    color: var(--c-gray-500);
    margin: -4px 0 14px;
    line-height: 1.5;
}
.footnote sup { color: var(--c-orange-d); font-weight: 700; }

/* CTA block (last slide) */
.cta-block {
    margin-top: 22px;
    padding: 16px 18px;
    background: rgba(245,158,11,0.14);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--c-orange);
}
.cta-block strong { color: var(--c-orange); display: block; font-size: 16px; margin-bottom: 4px; }
.cta-block span { color: rgba(255,255,255,0.88); font-size: 14px; line-height: 1.55; display: block; }

/* Sources */
.slide-sources {
    margin-top: 22px;
    padding-top: 12px;
    border-top: 1px solid var(--c-gray-200);
    font-size: 11.5px;
    line-height: 1.55;
    color: var(--c-gray-500);
}
.slide-sources strong { color: var(--c-gray-700); font-weight: 600; }
.slide-sources.on-dark, .on-dark .slide-sources { color: rgba(255,255,255,0.55); border-top-color: rgba(255,255,255,0.15); }
.slide-sources.on-dark strong, .on-dark .slide-sources strong { color: rgba(255,255,255,0.78); }

/* Footer */
.bp-footer {
    text-align: center;
    padding: 22px 16px;
    color: var(--c-gray-500);
    font-size: 12px;
    background: var(--c-navy-900);
    color: rgba(255,255,255,0.55);
}

/* Back to top */
.back-to-top {
    position: fixed;
    right: 16px;
    bottom: 16px;
    width: 44px; height: 44px;
    background: var(--c-navy-700);
    color: var(--c-white);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0; pointer-events: none;
    transition: opacity .2s, transform .2s, background-color .15s;
    z-index: 60;
    transform: translateY(8px);
}
.back-to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { background: var(--c-navy-900); text-decoration: none; }

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */

/* Small tablet ≥ 600px */
@media (min-width: 600px) {
    .slide { padding: 64px 28px 72px; }
    .slide.hero { padding: 72px 28px 80px; }
    .slide h1 { font-size: 32px; }
    .slide h2 { font-size: 26px; }
    .slide h3 { font-size: 17px; }
    .hero-title { font-size: 40px !important; }
    .hero-lead { font-size: 17px; }
    .hero-stats { grid-template-columns: repeat(3, 1fr); }
    .hero-stats strong { font-size: 20px; }
    .cards { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .card .num { font-size: 32px; }
    .checklist.two-up { grid-template-columns: repeat(2, 1fr); }
    .flow { grid-template-columns: repeat(2, 1fr); }
}

/* Tablet portrait ≥ 720px (iPad portrait gets 2-col layout) */
@media (min-width: 720px) {
    .slide { padding: 70px 30px 78px; }
    .slide.hero { padding: 84px 30px 92px; }
    .slide h1 { font-size: 34px; }
    .slide h2 { font-size: 28px; }
    .slide h3 { font-size: 17px; }
    .hero-title { font-size: 44px !important; }
    .two-col { grid-template-columns: 1fr 1fr; gap: 24px; }
    .two-col.weighted { grid-template-columns: 1.3fr 1fr; }
    .cards.cards-3 { grid-template-columns: repeat(3, 1fr); }
    .cards.cards-4 { grid-template-columns: repeat(4, 1fr); }
    .flow { grid-template-columns: repeat(5, 1fr); }
    .slide table { font-size: 13.5px; }
    .slide table th { padding: 10px 14px; font-size: 12.5px; }
    .slide table td { padding: 10px 14px; }
}

/* Tablet landscape ≥ 900px */
@media (min-width: 900px) {
    .slide { padding: 90px 36px 96px; }
    .slide.hero { padding: 110px 36px 116px; }
    .slide h1 { font-size: 40px; }
    .slide h2 { font-size: 32px; }
    .hero-title { font-size: 52px !important; }
}

/* Desktop ≥ 1024px */
@media (min-width: 1024px) {
    .slide { padding: 100px 40px 110px; }
    .slide.hero { padding: 120px 40px 130px; }
    .slide h1 { font-size: 42px; }
    .slide h2 { font-size: 34px; }
    .hero-title { font-size: 56px !important; }
    .hero-lead { font-size: 19px; max-width: 760px; }
    .hero-stats strong { font-size: 24px; }
    .card .num { font-size: 36px; }
    .chart-wrap { height: 300px; }
    .chart-wrap.chart-wide { height: 320px; }
}

/* Wide ≥ 1280px */
@media (min-width: 1280px) {
    .slide-inner { max-width: 1180px; }
    .hero-title { font-size: 64px !important; }
    .slide h1 { font-size: 48px; }
}

/* Print */
@media print {
    .site-header, .progress-bar, .back-to-top, .bp-footer { display: none !important; }
    body { background: #fff; padding-top: 0; }
    .slide { page-break-after: always; opacity: 1; transform: none; border-bottom: 0; box-shadow: none; }
    .slide.alt, .slide { background: #fff; }
    .slide.hero { background: var(--c-navy-900) !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
    .card, .callout, .chart-wrap, .flow .step, .table-wrap { break-inside: avoid; }
}

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

/* ============================================================
   V2 ADDITIONS — auth shell, NDA, dashboard, slide, admin
   ============================================================ */

/* Auth (login / register / forgot) */
.body-auth, .body-nda {
    min-height: 100vh; min-height: 100dvh;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 24px 16px;
    background:
        radial-gradient(1200px 600px at 10% -20%, rgba(37,99,235,0.18), transparent 60%),
        radial-gradient(900px 500px at 110% 110%, rgba(245,158,11,0.10), transparent 60%),
        linear-gradient(135deg, var(--c-navy-900) 0%, var(--c-navy-700) 100%);
}
.body-auth .bp-footer, .body-nda .bp-footer { display: none; }
.auth-shell, .nda-shell {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
}
.nda-shell { max-width: 820px; }
.auth-card {
    background: var(--c-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    padding: 32px 24px;
}
@media (min-width: 480px) { .auth-card { padding: 40px 36px; } }
.auth-card-wide { max-width: 100%; }
.auth-shell:has(.auth-card-wide) { max-width: 640px; }

.auth-brand { display: flex; justify-content: center; margin-bottom: 8px; }
.auth-tagline { text-align: center; font-size: 11px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--c-gray-500); margin-bottom: 14px; }
.auth-title { margin: 4px 0 6px; text-align: center; font-size: 24px; font-weight: 800; color: var(--c-navy-900); letter-spacing: -.4px; }
.auth-sub   { text-align: center; color: var(--c-gray-500); font-size: 14px; margin: 0 0 18px; }
.auth-links { margin-top: 18px; text-align: center; font-size: 13px; color: var(--c-gray-500); }
.auth-links a { color: var(--c-blue-600); }
.auth-links .sep { margin: 0 8px; color: var(--c-gray-300); }
.auth-footer { text-align: center; margin-top: 18px; font-size: 12px; color: rgba(255,255,255,0.65); }
.auth-footer div + div { margin-top: 4px; opacity: 0.7; }

.form .field { display: block; margin-bottom: 14px; }
.form .field .lbl { display: block; font-size: 13px; font-weight: 600; color: var(--c-gray-700); margin-bottom: 6px; }
.form .field input,
.form .field textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--c-gray-300);
    border-radius: var(--radius-xs);
    font-size: 16px;
    font-family: inherit;
    background: var(--c-white);
    color: var(--c-gray-900);
    transition: border-color .15s, box-shadow .15s;
}
.form .field input:focus,
.form .field textarea:focus {
    outline: none;
    border-color: var(--c-blue-500);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}
.form .form-row { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 520px) { .form .form-row { grid-template-columns: 1fr 1fr; } }
.form .check {
    display: flex; gap: 10px; align-items: flex-start;
    font-size: 13.5px; color: var(--c-gray-700);
    margin: 8px 0 16px; line-height: 1.5;
    cursor: pointer;
}
.form .check input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--c-navy-700); flex-shrink: 0; }

.btn-primary {
    width: 100%; padding: 13px;
    background: linear-gradient(135deg, var(--c-navy-700), var(--c-blue-600));
    color: var(--c-white); border: 0;
    border-radius: var(--radius-xs);
    font-size: 15px; font-weight: 600;
    cursor: pointer; margin-top: 6px;
    transition: transform .15s, box-shadow .15s, filter .15s;
    font-family: inherit;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); filter: brightness(1.05); }
.btn-ghost {
    padding: 11px 18px;
    background: transparent;
    color: var(--c-gray-700);
    border: 1.5px solid var(--c-gray-300);
    border-radius: var(--radius-xs);
    font-size: 14px; font-weight: 600; cursor: pointer;
    font-family: inherit;
    transition: background .15s, color .15s, border-color .15s;
}
.btn-ghost:hover { background: var(--c-gray-100); color: var(--c-navy-700); border-color: var(--c-gray-400); }

.alert { padding: 12px 14px; border-radius: var(--radius-xs); font-size: 14px; margin: 0 0 16px; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-ok    { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert ul li { margin-bottom: 2px; }

.inline { display: inline; }

/* NDA */
.body-nda .nda-shell { margin: 40px auto; }
.nda-brand { display: flex; gap: 14px; align-items: center; color: var(--c-white); margin-bottom: 18px; }
.nda-brand .brand-mark { flex-shrink: 0; }
.nda-eyebrow { font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--c-orange); font-weight: 700; }
.nda-title { margin: 4px 0 0; color: var(--c-white); font-size: 22px; font-weight: 800; letter-spacing: -.4px; }
.nda-doc {
    background: var(--c-white);
    border-radius: var(--radius);
    padding: 28px 24px;
    box-shadow: var(--shadow-lg);
    max-height: 50vh; overflow-y: auto;
    color: var(--c-gray-700);
    font-size: 14.5px; line-height: 1.65;
}
.nda-doc h2 { font-size: 16px; color: var(--c-navy-900); margin: 18px 0 8px; }
.nda-doc h2:first-child { margin-top: 0; }
.nda-doc p { margin: 0 0 10px; color: var(--c-gray-700); }
.nda-form {
    margin-top: 18px;
    background: var(--c-white);
    border-radius: var(--radius);
    padding: 22px 24px;
    box-shadow: var(--shadow-lg);
}
.nda-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: stretch; margin-top: 14px; }
.nda-actions form, .nda-actions .btn-ghost, .nda-actions .btn-primary { flex: 1 1 auto; }
.nda-actions .btn-primary { flex: 2 1 auto; }
.nda-actions form { display: inline-flex; }
.nda-actions form button { width: 100%; }
.nda-fine { font-size: 12px; color: var(--c-gray-500); margin: 14px 0 0; line-height: 1.5; }

/* App (post-NDA) */
.body-app { padding-top: var(--header-h); background: var(--c-gray-50); }
.app-main { max-width: 1140px; margin: 0 auto; padding: 28px 18px 56px; }
@media (min-width: 720px) { .app-main { padding: 36px 28px 80px; } }

.app-hero {
    background: linear-gradient(135deg, var(--c-navy-900) 0%, var(--c-navy-700) 100%);
    border-radius: var(--radius);
    padding: 32px 24px;
    color: var(--c-white);
    box-shadow: var(--shadow-lg);
    margin-bottom: 28px;
}
@media (min-width: 720px) { .app-hero { padding: 44px 36px; } }
.app-hero .eyebrow { background: rgba(245,158,11,0.18); color: var(--c-orange); }
.app-hero h1 { color: var(--c-white); font-size: 26px; font-weight: 800; letter-spacing: -.5px; margin: 0 0 8px; }
@media (min-width: 720px) { .app-hero h1 { font-size: 32px; } }
.app-hero .lead { color: rgba(255,255,255,0.85); font-size: 15px; margin: 0 0 18px; max-width: 720px; }
.hero-progress { display: flex; flex-direction: column; gap: 8px; }
@media (min-width: 600px) { .hero-progress { flex-direction: row; align-items: center; gap: 16px; } }
.hp-track { flex: 1; height: 8px; background: rgba(255,255,255,0.14); border-radius: 999px; overflow: hidden; }
.hp-fill { height: 100%; background: linear-gradient(90deg, var(--c-orange), #fbbf24); transition: width .4s ease; }
.hp-stat { color: rgba(255,255,255,0.85); font-size: 13px; white-space: nowrap; }
.hp-stat strong { color: var(--c-white); }

.toc { background: var(--c-white); border-radius: var(--radius); box-shadow: var(--shadow-md); padding: 26px 22px; }
@media (min-width: 720px) { .toc { padding: 32px 32px; } }
.toc-head h2 { margin: 0; color: var(--c-navy-900); font-size: 18px; }
.toc-head p { color: var(--c-gray-500); font-size: 13.5px; margin: 4px 0 18px; }
.toc-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.toc-item .toc-link {
    display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center;
    padding: 14px 16px;
    border: 1.5px solid var(--c-gray-200);
    border-radius: var(--radius-sm);
    color: var(--c-gray-900); text-decoration: none;
    transition: background .15s, border-color .15s, transform .15s;
}
.toc-item .toc-link:hover { border-color: var(--c-navy-700); background: var(--c-gray-50); transform: translateY(-1px); text-decoration: none; }
.toc-num { font-family: 'Inter', sans-serif; font-weight: 800; font-size: 18px; color: var(--c-navy-700); width: 44px; text-align: center; }
.toc-body { min-width: 0; }
.toc-title { display: block; font-weight: 600; color: var(--c-navy-900); font-size: 15.5px; }
.toc-meta { display: block; font-size: 12.5px; color: var(--c-gray-500); margin-top: 2px; }
.toc-cta { color: var(--c-blue-600); font-size: 13px; font-weight: 600; white-space: nowrap; }
.toc-item.visited .toc-num { color: var(--c-orange-d); }
.toc-item.done .toc-num { color: var(--c-green-d); }
.toc-item.done .toc-link { border-color: rgba(16,185,129,0.30); background: rgba(16,185,129,0.04); }
.badge-done { display: inline-block; padding: 2px 8px; border-radius: 999px; background: rgba(16,185,129,0.14); color: var(--c-green-d); font-size: 11px; font-weight: 700; margin-left: 6px; }

/* Slide */
.body-slide .app-main { max-width: 880px; }
.slide-frame { background: var(--c-white); border-radius: var(--radius); box-shadow: var(--shadow-md); padding: 30px 22px 24px; }
@media (min-width: 720px) { .slide-frame { padding: 44px 40px 32px; } }
.slide-head { margin-bottom: 22px; }
.slide-pos { font-size: 12px; letter-spacing: 1.2px; text-transform: uppercase; color: var(--c-gray-500); font-weight: 600; }
.slide-pos strong { color: var(--c-navy-700); }
.slide-h { margin: 6px 0 0; font-size: 24px; font-weight: 800; color: var(--c-navy-900); letter-spacing: -.5px; line-height: 1.2; }
@media (min-width: 720px) { .slide-h { font-size: 30px; } }
.slide-content { min-height: 240px; padding: 18px 0; }

.placeholder-card {
    background: var(--c-gray-50);
    border: 2px dashed var(--c-gray-300);
    border-radius: var(--radius);
    padding: 22px 20px;
    color: var(--c-gray-700);
    text-align: left;
}
.placeholder-eyebrow { font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--c-orange-d); font-weight: 700; background: var(--c-orange-l); padding: 4px 10px; border-radius: 999px; display: inline-block; margin-bottom: 10px; }
.placeholder-h { font-size: 18px; color: var(--c-navy-900); margin: 0 0 10px; }
.placeholder-list { margin: 8px 0 12px 18px; padding: 0; }
.placeholder-list li { margin-bottom: 6px; font-size: 14px; }
.placeholder-foot { font-size: 13px; color: var(--c-gray-500); margin-top: 12px; }

.slide-nav { display: grid; grid-template-columns: 1fr auto 1fr; gap: 10px; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--c-gray-200); }
.nav-btn { display: inline-flex; align-items: center; justify-content: center; padding: 11px 16px; border-radius: var(--radius-xs); border: 1.5px solid var(--c-gray-300); color: var(--c-gray-700); text-decoration: none; font-size: 13.5px; font-weight: 600; transition: background .15s, color .15s, border-color .15s; }
.nav-btn:hover { background: var(--c-gray-100); color: var(--c-navy-700); text-decoration: none; border-color: var(--c-gray-400); }
.nav-next { background: var(--c-navy-700); color: var(--c-white); border-color: var(--c-navy-700); }
.nav-next:hover { background: var(--c-navy-900); color: var(--c-white); border-color: var(--c-navy-900); }
.nav-home { color: var(--c-navy-700); }
.nav-prev { justify-self: start; }
.nav-next { justify-self: end; }

/* Header app — override v1 stale rules */
.body-app .site-header, .body-slide .site-header { background: rgba(255,255,255,0.96); border-bottom: 1px solid var(--c-gray-200); }
.site-header .nav-link { font-size: 13px; font-weight: 500; color: var(--c-gray-700); padding: 6px 4px; border-bottom: 2px solid transparent; transition: color .15s, border-color .15s; text-decoration: none; }
.site-header .nav-link:hover { color: var(--c-navy-700); border-bottom-color: var(--c-navy-700); text-decoration: none; }
.site-header .nav-link-admin { color: var(--c-orange-d); font-weight: 600; }
.site-header .nav-link-admin:hover { border-bottom-color: var(--c-orange-d); }
.site-header .inline { display: inline; }
.site-header form.inline button.logout {
    font-size: 12px; color: var(--c-navy-700);
    padding: 6px 12px; background: var(--c-white);
    border: 1px solid var(--c-gray-200);
    border-radius: 999px; font-weight: 600; cursor: pointer;
    font-family: inherit;
    transition: background .15s, color .15s, border-color .15s;
}
.site-header form.inline button.logout:hover { background: var(--c-navy-700); color: var(--c-white); border-color: var(--c-navy-700); }

/* Admin */
.body-admin { background: var(--c-gray-50); }
.admin-wrap { max-width: 1240px; margin: 0 auto; padding: 28px 18px 60px; }
@media (min-width: 720px) { .admin-wrap { padding: 36px 28px 80px; } }
.admin-title { font-size: 26px; color: var(--c-navy-900); margin: 0 0 6px; letter-spacing: -.5px; font-weight: 800; }
.admin-sub   { color: var(--c-gray-500); font-size: 14px; margin: 0 0 24px; }

.admin-summary { display: grid; grid-template-columns: 1fr; gap: 12px; margin-bottom: 28px; }
@media (min-width: 600px) { .admin-summary { grid-template-columns: 1fr 1fr; } }
@media (min-width: 920px) { .admin-summary { grid-template-columns: repeat(4, 1fr); } }
.sum-card {
    background: var(--c-white);
    border: 1.5px solid var(--c-gray-200);
    border-radius: var(--radius-sm);
    padding: 16px 18px;
    box-shadow: var(--shadow-sm);
}
.sum-tag { font-size: 11px; letter-spacing: 1.2px; text-transform: uppercase; color: var(--c-gray-500); font-weight: 700; }
.sum-value { font-size: 26px; font-weight: 800; color: var(--c-navy-700); letter-spacing: -.8px; line-height: 1.1; margin-top: 4px; }
.sum-sub { font-size: 12.5px; color: var(--c-gray-500); margin-top: 4px; }
.sum-card-online .sum-value { color: var(--c-green-d); }
.sum-card-pending .sum-value { color: var(--c-orange-d); }

.admin-sec-head { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 10px; margin: 26px 0 12px; }
.admin-sec-head h2 { margin: 0; font-size: 18px; color: var(--c-navy-900); }
.admin-sec-sub { font-size: 12.5px; color: var(--c-gray-500); }

.heatmap-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(86px, 1fr)); gap: 6px; background: var(--c-white); border: 1.5px solid var(--c-gray-200); border-radius: var(--radius-sm); padding: 12px; }
.heat-cell { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 12px 4px; border-radius: var(--radius-xs); color: var(--c-white); text-decoration: none; min-height: 64px; transition: transform .15s; }
.heat-cell:hover { transform: translateY(-2px); text-decoration: none; }
.heat-lv-0 { background: var(--c-gray-200); color: var(--c-gray-500); }
.heat-lv-1 { background: #c8d3eb; color: var(--c-navy-900); }
.heat-lv-2 { background: var(--c-navy-600); color: var(--c-white); }
.heat-lv-3 { background: var(--c-navy-700); color: var(--c-white); }
.heat-lv-4 { background: var(--c-navy-900); color: var(--c-white); }
.heat-n { font-size: 14px; font-weight: 800; letter-spacing: .5px; }
.heat-v { font-size: 11px; opacity: .8; margin-top: 2px; }

.admin-table-wrap { background: var(--c-white); border: 1.5px solid var(--c-gray-200); border-radius: var(--radius-sm); overflow: hidden; }
.admin-users-table, .nda-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.admin-users-table th, .nda-table th { background: var(--c-navy-700); color: var(--c-white); text-align: left; padding: 10px 14px; font-weight: 600; font-size: 12px; letter-spacing: .3px; }
.admin-users-table td, .nda-table td { padding: 10px 14px; border-bottom: 1px solid var(--c-gray-100); color: var(--c-gray-700); }
.admin-users-table tr:last-child td, .nda-table tr:last-child td { border-bottom: 0; }
.admin-users-table tbody tr:hover { background: var(--c-gray-50); }
.col-num, td.col-num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.u-btn { color: var(--c-blue-600); font-weight: 600; font-size: 12.5px; }

.pill-status { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 700; letter-spacing: .3px; text-transform: uppercase; }
.pill-status.pending  { background: var(--c-orange-l); color: var(--c-orange-d); }
.pill-status.approved { background: rgba(16,185,129,0.14); color: var(--c-green-d); }
.pill-status.rejected { background: #fee2e2; color: #991b1b; }
.pill-status.disabled { background: var(--c-gray-200); color: var(--c-gray-700); }
.pill-role.admin { background: var(--c-blue-100); color: var(--c-blue-600); }

.actions-cell form { display: inline; margin-right: 4px; }
.btn-mini { font-size: 11.5px; padding: 4px 10px; border-radius: 6px; border: 1.5px solid var(--c-gray-300); background: var(--c-white); color: var(--c-gray-700); cursor: pointer; font-family: inherit; font-weight: 600; }
.btn-mini.approve { color: var(--c-green-d); border-color: rgba(16,185,129,0.40); }
.btn-mini.approve:hover { background: var(--c-green-d); color: var(--c-white); border-color: var(--c-green-d); }
.btn-mini.reject { color: #991b1b; border-color: #fecaca; }
.btn-mini.reject:hover { background: #991b1b; color: var(--c-white); border-color: #991b1b; }


/* ============================================================
   V2.1 — Document layout (chapter pages, blocks in dashboard)
   ============================================================ */

/* Dashboard — blocks */
.block { margin-top: 28px; }
.block:first-of-type { margin-top: 6px; }
.block-head {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 14px;
    align-items: center;
    padding: 14px 0 10px;
    border-bottom: 2px solid var(--c-gray-200);
    margin-bottom: 12px;
}
.block-num {
    background: var(--c-navy-700);
    color: var(--c-white);
    padding: 6px 10px;
    border-radius: var(--radius-xs);
    font-size: 11px;
    letter-spacing: 1.5px;
    font-weight: 700;
    text-transform: uppercase;
    white-space: nowrap;
}
.block-tone-blue   .block-num { background: var(--c-blue-600); }
.block-tone-green  .block-num { background: var(--c-green-d); }
.block-tone-orange .block-num { background: var(--c-orange-d); }
.block-tone-gray   .block-num { background: var(--c-gray-600); }
.block-title { margin: 0; font-size: 17px; color: var(--c-navy-900); font-weight: 700; letter-spacing: -.3px; }
.block-desc  { margin: 2px 0 0; font-size: 13.5px; color: var(--c-gray-500); }
.block-count { font-size: 12px; color: var(--c-gray-500); font-weight: 600; white-space: nowrap; }

/* Status pills */
.status-pill {
    display: inline-block;
    margin-left: 8px;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .4px;
    text-transform: uppercase;
    vertical-align: middle;
}
.status-pill.soon  { background: var(--c-gray-200); color: var(--c-gray-700); }
.status-pill.draft { background: var(--c-orange-l); color: var(--c-orange-d); }
.status-pill.big   { margin-left: 0; padding: 4px 12px; font-size: 11px; }
.toc-item.status-soon .toc-link { opacity: .85; }

/* Chapter page — reading-document style (not slide) */
.body-chapter .app-main { max-width: 820px; }
.chapter { background: var(--c-white); border-radius: var(--radius); box-shadow: var(--shadow-md); padding: 32px 24px 24px; }
@media (min-width: 720px) { .chapter { padding: 56px 56px 36px; } }

.chapter-head { margin-bottom: 24px; padding-bottom: 22px; border-bottom: 1px solid var(--c-gray-200); }
.chapter-crumb {
    font-size: 12px;
    color: var(--c-gray-500);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.chapter-crumb a { color: var(--c-navy-700); font-weight: 600; }
.chapter-crumb .sep { color: var(--c-gray-300); }
.chapter-crumb .crumb-block { font-weight: 600; color: var(--c-gray-700); }
.chapter-tone-blue   .chapter-crumb .crumb-block { color: var(--c-blue-600); }
.chapter-tone-green  .chapter-crumb .crumb-block { color: var(--c-green-d); }
.chapter-tone-orange .chapter-crumb .crumb-block { color: var(--c-orange-d); }
.chapter-tone-gray   .chapter-crumb .crumb-block { color: var(--c-gray-700); }

.chapter-meta {
    font-size: 11px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--c-gray-500);
    font-weight: 700;
    margin-bottom: 8px;
}
.chapter-meta .chapter-num { color: var(--c-navy-700); }
.chapter-tone-blue   .chapter-meta .chapter-num { color: var(--c-blue-600); }
.chapter-tone-green  .chapter-meta .chapter-num { color: var(--c-green-d); }
.chapter-tone-orange .chapter-meta .chapter-num { color: var(--c-orange-d); }
.chapter-meta .chapter-of { opacity: .6; }

.chapter-title {
    margin: 0 0 6px;
    font-size: 28px;
    font-weight: 800;
    color: var(--c-navy-900);
    letter-spacing: -.6px;
    line-height: 1.2;
}
@media (min-width: 720px) { .chapter-title { font-size: 36px; } }

.chapter-body {
    min-height: 200px;
    font-size: 16px;
    line-height: 1.7;
    color: var(--c-gray-800);
}
.chapter-body p { margin: 0 0 16px; color: var(--c-gray-800); font-size: 16px; line-height: 1.7; }
.chapter-body h2 { margin: 28px 0 12px; font-size: 22px; color: var(--c-navy-900); font-weight: 700; letter-spacing: -.4px; }
.chapter-body h3 { margin: 22px 0 8px;  font-size: 17px; color: var(--c-navy-700); font-weight: 600; }
.chapter-body ul, .chapter-body ol { margin: 0 0 16px 22px; padding: 0; }
.chapter-body li { margin-bottom: 6px; }
.chapter-body strong { color: var(--c-navy-900); font-weight: 700; }
.chapter-body blockquote { margin: 20px 0; padding: 12px 18px; border-left: 4px solid var(--c-blue-600); background: var(--c-gray-50); color: var(--c-gray-700); border-radius: 0 var(--radius-xs) var(--radius-xs) 0; }

/* Placeholder card for chapters without content yet */
.placeholder-page {
    background: linear-gradient(160deg, var(--c-gray-50), var(--c-paper, var(--c-white)));
    border: 2px dashed var(--c-gray-300);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
}
.placeholder-marker { font-size: 36px; opacity: .6; margin-bottom: 8px; }
.placeholder-h { font-size: 18px; color: var(--c-navy-900); margin: 0 0 12px; }
.placeholder-page p { text-align: left; }
.placeholder-list { text-align: left; margin: 8px auto 12px; max-width: 580px; padding-left: 18px; }
.placeholder-list li { margin-bottom: 6px; font-size: 14px; color: var(--c-gray-700); }
.placeholder-foot { font-size: 13px; color: var(--c-gray-500); text-align: center; margin-top: 14px; }

/* Chapter navigation — labeled cards with next/prev names */
.chapter-nav {
    margin-top: 28px;
    padding-top: 22px;
    border-top: 1px solid var(--c-gray-200);
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}
@media (min-width: 600px) {
    .chapter-nav { grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: stretch; }
}
.chapter-nav .nav-btn {
    display: flex; flex-direction: column;
    padding: 12px 16px;
    border: 1.5px solid var(--c-gray-300);
    border-radius: var(--radius-xs);
    color: var(--c-gray-700);
    text-decoration: none;
    transition: background .15s, color .15s, border-color .15s;
}
.chapter-nav .nav-btn:hover { background: var(--c-gray-50); color: var(--c-navy-700); border-color: var(--c-navy-700); text-decoration: none; }
.chapter-nav .nav-dir { font-size: 12px; color: var(--c-gray-500); font-weight: 600; letter-spacing: .3px; }
.chapter-nav .nav-name { font-size: 14px; font-weight: 600; color: var(--c-navy-900); margin-top: 2px; line-height: 1.4; }
.chapter-nav .nav-home { align-items: center; justify-content: center; font-size: 13px; font-weight: 700; color: var(--c-navy-700); padding: 0 14px; }
.chapter-nav .nav-next { background: var(--c-navy-900); color: var(--c-white); border-color: var(--c-navy-900); }
.chapter-nav .nav-next .nav-dir { color: var(--c-orange); }
.chapter-nav .nav-next .nav-name { color: var(--c-white); }
.chapter-nav .nav-next:hover { background: var(--c-navy-700); color: var(--c-white); border-color: var(--c-navy-700); }
.chapter-nav .nav-prev { text-align: left; }
.chapter-nav .nav-next { text-align: right; }
@media (max-width: 600px) {
    .chapter-nav .nav-home { display: none; }
}