/* ============================================================
   Site-wide shared styles — single source of branding truth.
   The home page (index.html) is the canonical visual reference;
   all other pages inherit the editorial system from this file.
   Page-specific styles should live in scoped <style> blocks only
   when they cannot be expressed through the tokens/primitives below.
   ============================================================ */

/* ============================================================
   Source Serif 4 — self-hosted variable font.
   Two subsets cover English + French + most Western European
   characters. Both files are the same variable WOFF2 across
   weights 400-700; the browser picks the right axis instance.
   Self-hosting replaces the Google Fonts <link> preload that
   used to live in each marketing page's <head> — one source
   of truth, no third-party dependency, no per-page boilerplate.
   ============================================================ */
@font-face {
    font-family: 'Source Serif 4';
    font-style: normal;
    font-weight: 400 700;
    font-display: swap;
    src: url('/fonts/source-serif-4-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: 'Source Serif 4';
    font-style: normal;
    font-weight: 400 700;
    font-display: swap;
    src: url('/fonts/source-serif-4-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
    /* ---------- Brand (azure-leaning navy) ---------- */
    --primary-color: #1656D9;
    --primary-dark: #0F44B0;
    --primary-light: #3171E8;
    --secondary-color: #107C10;
    --accent-color: #FF4081;

    /* ---------- Category-coded accents (icons + pills) ---------- */
    --accent-azure:   #0078D4;
    --accent-teal:    #1D9E75;
    --accent-purple:  #534AB7;
    --accent-amber:   #BA7517;
    --accent-magenta: #C239B3;

    /* ---------- Surfaces ---------- */
    --white: #FFFFFF;
    --bg-cream: #fafaf8;
    --bg-warm-tint: #f1efea;
    --light-gray: #F8F9FA;

    /* ---------- Text (warm near-black + warm grays) ---------- */
    --dark-color: #1a1a1a;
    --text-secondary-warm: #4a4a47;
    --text-tertiary-warm: #7a7a75;
    --medium-gray: #6C757D;

    /* ---------- Borders ---------- */
    --border-color: rgba(0, 0, 0, 0.12);
    --border-warm-light: rgba(0, 0, 0, 0.12);
    --border-warm-medium: rgba(0, 0, 0, 0.25);

    /* ---------- Typography ---------- */
    --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-serif: "Source Serif 4", "Source Serif Pro", "Charter", Georgia, "Times New Roman", serif;
    --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

    /* ---------- Layout (editorial container + vertical rhythm) ---------- */
    /* Bumped 1100 → 1240 to match the homepage. All marketing pages
       inherit; prose elements (h1, .lede, etc.) keep their own narrower
       max-widths so line lengths stay readable. */
    --container-max: 1240px;
    --container-padding: 32px;
    --section-spacing: 96px;
    --section-spacing-tight: 64px;
    --hero-padding-top: 108px;
    --hero-padding-bottom: 96px;

    /* ---------- Nav ---------- */
    --nav-height: 64px;
    --nav-brand-size: 18px;
    --nav-brand-weight: 650;
    --nav-brand-spacing: -0.01em;
    --nav-surface: rgba(250, 250, 248, 0.82);
    --nav-surface-dark: #0D0C0A;
    --nav-hairline: rgba(0, 0, 0, 0.08);
    --nav-hairline-dark: rgba(255, 255, 255, 0.08);
    --nav-link: #4a4a47;
    --nav-link-dark: #C4BDB5;
    --nav-tint: rgba(22, 86, 217, 0.08);
    --nav-tint-dark: rgba(255, 255, 255, 0.08);

    /* ---------- Radius ---------- */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* ---------- Icons ---------- */
    --icon-stroke-width: 1.5;

    /* ---------- Gradients (legacy — retained for back-compat) ---------- */
    --gradient-primary: linear-gradient(135deg, #1656D9 0%, #0F44B0 100%);
    --gradient-secondary: linear-gradient(135deg, #107C10 0%, #0B5394 100%);

    /* ---------- Shadows ---------- */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* ---------- Editor / code panel (dark idiom on the cream page) ----------
       Used by any "live code surface" embedded in marketing content —
       e.g. the composition stage's JSON fragment panel. IDE-style
       palette so visitors recognise it as a code editor, not another
       prose-card variant. */
    --editor-bg:           #0b1220;
    --editor-bg-header:    rgba(255, 255, 255, 0.025);
    --editor-border:       rgba(255, 255, 255, 0.06);
    --editor-text:         #cbd5e1;
    --editor-text-muted:   #94a3b8;
    --editor-text-dim:     #64748b;
    --editor-token-key:      #93c5fd; /* property names */
    --editor-token-string:   #86efac;
    --editor-token-number:   #fcd34d;
    --editor-token-boolean:  #f0abfc; /* booleans / null */
    --editor-token-variable: #fb923c; /* $data.* / $global.* placeholders */

    /* ---------- Dark hero variant ----------
       Near-black editorial hero (class="dark-hero"). NOTE: index.html inlines
       these same literals as critical CSS so the above-the-fold hero paints
       before this async stylesheet loads — keep the two in sync. */
    --dark-hero-bg:             #0D0C0A;
    --dark-hero-text:           #F5F3EF;
    --dark-hero-text-secondary: #C4BDB5;
    --dark-hero-eyebrow:        #6BA3FF;
    --dark-hero-emphasis:       #E8E3DC;
    --dark-hero-btn-text:       #D4CFC8;
    --dark-hero-border:         rgba(255, 255, 255, 0.08);
    --dark-hero-btn-border:     rgba(255, 255, 255, 0.32);
}

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

html {
    scroll-behavior: smooth;
    scrollbar-gutter: stable;
}

body {
    font-family: var(--font-sans);
    color: var(--dark-color);
    background: var(--bg-cream);
    line-height: 1.55;
    font-size: 15px;
    /* Defensive guard — if any element overflows horizontally (e.g. a long
       h1, a wide SVG, an unwrappable code block), prevent it from dragging
       the entire page wider than the viewport, which would make mobile
       devices render the page in "desktop mode" (zoomed-out scaling). */
    overflow-x: clip;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ================================== */
/* NAV — shared skeleton across pages  */
/* ================================== */

#nav-root {
    position: sticky;
    top: 0;
    z-index: 1100;
    min-height: var(--nav-height);
    background: var(--nav-surface);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--nav-hairline);
}

.nav-fallback {
    height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    color: var(--dark-color);
}
.nav-fallback-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: var(--nav-brand-weight);
    font-size: var(--nav-brand-size);
    letter-spacing: var(--nav-brand-spacing);
    text-decoration: none;
    color: inherit;
    flex-shrink: 0;
    margin-right: 0;
}
.nav-fallback-brand img { height: 28px; width: 28px; }

.nav-fallback-links {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    margin-left: 16px;
    padding: 0;
    gap: 2px;
    flex: 1;
}
.nav-fallback-links a {
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--nav-link);
    text-decoration: none;
    padding: 6px 12px;
    min-height: 36px;
    border-radius: var(--radius-md);
    transition: color 0.2s ease, background-color 0.2s ease;
}
.nav-fallback-links a:hover { color: var(--dark-color); background: var(--nav-tint); }
.nav-fallback-links a[aria-current="page"] {
    color: var(--primary-color);
    background: var(--nav-tint);
}
body:has(.dark-hero) .nav-fallback-links a[aria-current="page"] {
    color: #6BA3FF;
    background: var(--nav-tint-dark);
}
.nav-fallback-dashboard-item { display: none; }
:root[data-authed] .nav-fallback-dashboard-item { display: block; }

.nav-fallback-ctas {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.nav-fallback-signin,
.nav-fallback-getstarted {
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
}
.nav-fallback-signin  { color: var(--dark-color); padding: 6px 12px; border-radius: var(--radius-md); }
.nav-fallback-signin:hover { background: var(--nav-tint); }
.nav-fallback-getstarted { background: var(--primary-color); color: white; padding: 6px 16px; border-radius: var(--radius-md); font-weight: 600; }
.nav-fallback-getstarted:hover { background: var(--primary-dark); }
.nav-menu { position: relative; flex-shrink: 0; }
.nav-menu-trigger {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 36px;
    padding: 6px 12px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    line-height: 1;
    color: var(--dark-color);
    background: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color 0.2s ease;
}
.nav-menu:hover > .nav-menu-trigger,
.nav-menu:focus-within > .nav-menu-trigger { background: var(--nav-tint); }
.nav-menu-panel {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    min-width: 160px;
    padding: 8px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: 0 5px 40px rgba(0, 0, 0, 0.2);
    z-index: 1200;
}
.nav-menu-panel::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: -8px;
    height: 8px;
}
.nav-menu:hover > .nav-menu-panel,
.nav-menu:focus-within > .nav-menu-panel { display: block; }
.nav-menu-item {
    display: block;
    width: 100%;
    margin-top: 2px;
    padding: 4px 8px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    line-height: 1.65;
    color: var(--dark-color);
    text-align: left;
    text-decoration: none;
    white-space: nowrap;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
}
.nav-menu-item:first-child { margin-top: 0; }
.nav-menu-item:hover { background: rgba(0, 0, 0, 0.05); }
.nav-menu-item[aria-current="true"] { color: var(--primary-color); background: rgba(0, 0, 0, 0.05); }
.nav-menu-item-danger { color: #d13438; }

.nav-menu-trigger-outlined { border: 1px solid var(--border-warm-light); }
.nav-fallback-lang-label { display: none; }
.nav-fallback-lang[data-active="en"] .nav-fallback-lang-label[data-lang="en"],
.nav-fallback-lang[data-active="fr"] .nav-fallback-lang-label[data-lang="fr"] { display: inline; }
.nav-fallback-search { display: inline-flex; align-items: center; padding: 6px; color: inherit; opacity: 0.75; }
.nav-fallback-search:hover { opacity: 1; }

/* Dark hero variant */
body:has(.dark-hero) #nav-root { background: var(--nav-surface-dark); border-bottom-color: var(--nav-hairline-dark); }
body:has(.dark-hero) .nav-fallback { color: #F5F3EF; }
body:has(.dark-hero) .nav-fallback-links a { color: var(--nav-link-dark); }
body:has(.dark-hero) .nav-fallback-links a:hover { color: #F5F3EF; background: var(--nav-tint-dark); }
body:has(.dark-hero) .nav-fallback-signin  { color: #F5F3EF; }
body:has(.dark-hero) .nav-fallback-signin:hover { background: var(--nav-tint-dark); }
body:has(.dark-hero) .nav-menu-trigger { color: #F5F3EF; }
body:has(.dark-hero) .nav-menu-trigger-outlined { border-color: rgba(255, 255, 255, 0.16); }
body:has(.dark-hero) .nav-menu:hover > .nav-menu-trigger,
body:has(.dark-hero) .nav-menu:focus-within > .nav-menu-trigger { background: var(--nav-tint-dark); }
body:has(.dark-hero) .nav-menu-panel { background: #1a1916; box-shadow: 0 5px 40px rgba(0, 0, 0, 0.6); }
body:has(.dark-hero) .nav-menu-item { color: #F5F3EF; }
body:has(.dark-hero) .nav-menu-item:hover { background: rgba(255, 255, 255, 0.07); }
body:has(.dark-hero) .nav-menu-item[aria-current="true"] { color: #6BA3FF; background: rgba(255, 255, 255, 0.07); }

/* ================================== */
/* LAYOUT — container + section rhythm */
/* ================================== */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

section {
    padding: var(--section-spacing) 0;
    border-top: 1px solid var(--border-warm-light);
}
section:first-of-type { border-top: none; }

/* ================================== */
/* TYPOGRAPHY — editorial system       */
/* (serif display, sans body, mono captions) */
/* ================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--dark-color);
    line-height: 1.15;
    margin-bottom: 1rem;
}

h1 {
    font-family: var(--font-serif);
   font-size: 24px;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.025em;
    color: var(--primary-color);
    margin-bottom: 24px;
     overflow-wrap: anywhere;
}
h2 {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.015em;
    color: var(--primary-color);
    margin-bottom: 16px;
}
h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: -0.005em;
}

p { margin-bottom: 1rem; }

.eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-tertiary-warm);
    margin-bottom: 14px;
    display: block;
}

/* ================================== */
/* SECTION EYEBROW COLOR CYCLING       */
/* Each section's eyebrow picks up one of the 5 categorical accents     */
/* so the page reads as one design system. Same cycle the homepage      */
/* icons use (pillar, depth, authoring, composition-claim, axis-block). */
/* Hero/page-header eyebrows stay muted — they're page intros, they     */
/* shouldn't compete with the H1.                                       */
/* ================================== */
section:nth-of-type(5n+1) .eyebrow { color: var(--accent-azure); }
section:nth-of-type(5n+2) .eyebrow { color: var(--accent-teal); }
section:nth-of-type(5n+3) .eyebrow { color: var(--accent-purple); }
section:nth-of-type(5n+4) .eyebrow { color: var(--accent-amber); }
section:nth-of-type(5n+5) .eyebrow { color: var(--accent-magenta); }

/* Page-hero / page-header eyebrows stay muted — source order override */
.page-header .eyebrow,
section.hero .eyebrow { color: var(--text-tertiary-warm); }

.lede {
    font-size: 17px;
    color: var(--text-secondary-warm);
    line-height: 1.55;
    max-width: 640px;
    margin-bottom: 32px;
    text-wrap: pretty;
}

.mono {
    font-family: var(--font-mono);
    font-size: 0.92em;
}

/* Icon system — used via <svg class="icon"><use href="#name"/></svg> */
.icon {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: var(--icon-stroke-width);
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    flex-shrink: 0;
}
.icon-sm { width: 14px; height: 14px; stroke-width: 1.75; }
.icon-lg { width: 28px; height: 28px; stroke-width: 1.25; }

/* ================================== */
/* BUTTONS — editorial                 */
/* filled-navy primary, ghost-outline secondary */
/* ================================== */

.btn,
.btn-primary,
.btn-secondary,
.btn-outline,
.btn-white {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 18px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    border: 1px solid transparent;
    text-decoration: none;
    cursor: pointer;
    transition: background 120ms, border-color 120ms, color 120ms;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
}
.btn-primary:hover { background: var(--primary-dark); }

.btn-secondary {
    background: transparent;
    color: var(--dark-color);
    border-color: var(--border-warm-medium);
}
.btn-secondary:hover { border-color: var(--dark-color); }

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}
.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-white {
    background: var(--white);
    color: var(--primary-color);
    border: 1px solid var(--white);
}
.btn-white:hover {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

/* ================================== */
/* PAGE WRAPPER                        */
/* ================================== */

.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-body-with-header {
    padding-top: 0;
}

/* ================================== */
/* COMMON PAGE HEADERS — editorial     */
/* Cream background, serif h1 in dark color, hairline rule. */
/* No light-blue gradient or grid overlay. */
/* ================================== */

.page-header {
    padding: var(--hero-padding-top) 0 var(--hero-padding-bottom);
    background: var(--bg-cream);
    border-bottom: 1px solid var(--border-warm-light);
    position: relative;
}

.page-header.primary { background: var(--bg-cream); }

.page-header.hero { padding: calc(var(--hero-padding-top) * 1.25) 0 var(--hero-padding-bottom); }

.page-header-content {
    position: relative;
}

.page-header h1 {
    text-shadow: none;
}

.page-header.hero h1 { font-size: clamp(22px, 5.5vw, 64px); }

.page-header p {
    font-size: 17px;
    color: var(--text-secondary-warm);
    line-height: 1.55;
    max-width: 640px;
}

.page-header .highlight {
    color: var(--primary-color);
    font-weight: 500;
}

.page-header .emphasis {
    background: transparent;
    padding: 0;
    color: var(--dark-color);
    font-weight: 500;
}

/* ================================== */
/* CONTENT SECTIONS — editorial        */
/* Cream background, no alternating stripe. */
/* Serif h2 in dark color (not azure blue). */
/* ================================== */

.content-section {
    padding: var(--section-spacing) 0;
    background: var(--bg-cream);
    border-top: 1px solid var(--border-warm-light);
    flex: 1;
}
.content-section:first-of-type { border-top: none; }

.content-section h2 {
    color: var(--primary-color);
    text-align: left;
    margin-bottom: 16px;
}

.content-section h2.center { text-align: center; }

.content-section h3 {
    font-size: 20px;
    color: var(--dark-color);
    margin-bottom: 8px;
}

.content-section p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary-warm);
    margin-bottom: 1rem;
}

.content-section .highlight {
    color: var(--primary-color);
    font-weight: 500;
}
.content-section .emphasis {
    background: transparent;
    padding: 0;
    color: var(--dark-color);
    font-weight: 500;
}

/* ================================== */
/* LAYOUT GRIDS                        */
/* ================================== */

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.content-grid.center { align-items: center; }

.content-grid.three-col {
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.content-grid.auto-fit {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* ================================== */
/* BASIC CARDS                         */
/* ================================== */

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-warm-light);
    transition: border-color 200ms ease, transform 200ms ease;
}

.card:hover {
    border-color: var(--border-warm-medium);
    transform: translateY(-2px);
}

.card.featured {
    border: 2px solid var(--primary-color);
}

.pillars {
    padding: 72px 0;
    border-top: none;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
}

.pillar {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
    padding: 0 40px;
}

.pillar:first-child { padding-left: 0; }
.pillar:last-child { padding-right: 0; }

.pillar:not(:last-child) {
    border-right: 1px solid var(--border-warm-light);
}

.pillar-icon {
    width: 64px;
    height: 64px;
}

.pillar h3 {
    font-family: var(--font-serif);
    font-size: 19px;
    font-weight: 600;
    color: var(--dark-color);
    letter-spacing: -0.01em;
    margin-bottom: 0;
}

.pillar p {
    font-size: 14px;
    color: var(--text-secondary-warm);
    line-height: 1.65;
    margin-bottom: 0;
}

.cta-close {
    text-align: center;
}

.cta-close h2 {
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.cta-close .lede {
    margin-left: auto;
    margin-right: auto;
}

.cta-close-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ================================== */
/* UTILITIES                           */
/* ================================== */

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

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

/* h1 scales up at explicit breakpoints. Mobile-first: phone default
   (in the h1 base rule) is 24px; bigger viewports get bigger sizes. */
@media (min-width: 600px) { h1 { font-size: 32px; } .nav-fallback { padding: 0 24px; } }
@media (min-width: 900px) { h1 { font-size: 42px; line-height: 1.08; } .nav-fallback-brand { margin-right: 32px; } }
@media (min-width: 1240px) { h1 { font-size: 50px; line-height: 1.05; } }

/* ── Mobile hamburger + panel ───────────────────────────────────────────────── */
/* Panel and backdrop are desktop-invisible — never interact outside mobile viewport */
@media (min-width: 1200px) {
    .nav-mobile-panel,
    .nav-mobile-backdrop { display: none !important; }
}

.nav-hamburger {
    display: none;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    padding: 6px;
    cursor: pointer;
    color: inherit;
    flex-shrink: 0;
    opacity: 0.85;
}
.nav-hamburger:hover { opacity: 1; }
.nav-hamburger-icon-close { display: none; }
.nav-hamburger[aria-expanded="true"] .nav-hamburger-icon-open { display: none; }
.nav-hamburger[aria-expanded="true"] .nav-hamburger-icon-close { display: block; }

/* Backdrop — matches MUI Drawer's scrim */
.nav-mobile-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1199;
}
.nav-mobile-backdrop.is-open { display: block; }

/* Panel — matches MUI Drawer: width 280, bg-warm-tint, border-right */
.nav-mobile-panel {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    background: var(--bg-warm-tint);
    border-right: 1px solid var(--border-warm-light);
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.225s cubic-bezier(0, 0, 0.2, 1);
}
.nav-mobile-panel.is-open { transform: translateX(0); }

/* Header — matches DrawerHeader: p:16, border-bottom, bg-cream */
.nav-mobile-header {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 16px;
    border-bottom: 1px solid var(--border-warm-light);
    background: var(--bg-cream);
    flex-shrink: 0;
}
.nav-mobile-header img { height: 24px; width: 24px; }
.nav-mobile-header-brand {
    font-weight: 600;
    font-size: 18px;
    color: var(--dark-color);
}

/* Nav list — matches py:1 outer, items py:1.5 px:3 my:0.5 mx:1 borderRadius:4px */
.nav-mobile-links {
    list-style: none;
    margin: 8px;
    padding: 0;
}
.nav-mobile-links li a {
    display: flex;
    align-items: center;
    padding: 12px 24px;
    margin: 4px 8px;
    font-size: 14px;
    font-weight: 400;
    color: var(--dark-color);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: background-color 0.15s ease;
}
.nav-mobile-links li a:hover { background: rgba(22, 86, 217, 0.12); }
.nav-mobile-links li a[aria-current="page"] {
    background: rgba(22, 86, 217, 0.08);
    color: var(--primary-color);
    font-weight: 500;
}

/* Auth — matches Divider my:2 mx:2 + Box px:2 pb:2 */
.nav-mobile-auth {
    margin: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-warm-light);
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.nav-mobile-signin {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 8px 0;
    font-size: 14px;
    font-weight: 400;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: var(--radius-sm);
}
.nav-mobile-getstarted {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    background: var(--primary-color);
    color: #fff;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: background-color 0.2s ease;
}
.nav-mobile-getstarted:hover { background: var(--primary-dark); }
.nav-mobile-account { display: none; flex-direction: column; gap: 4px; }
:root[data-authed] .nav-mobile-account { display: flex; }
:root[data-authed] .nav-mobile-signin,
:root[data-authed] .nav-mobile-getstarted { display: none; }
.nav-mobile-profile {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 8px 0;
    font-size: 14px;
    font-weight: 400;
    color: var(--dark-color);
    text-decoration: none;
    border-radius: var(--radius-sm);
}
.nav-mobile-profile:hover { background: rgba(22, 86, 217, 0.12); }
.nav-mobile-signout {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 8px 0;
    font-size: 14px;
    font-weight: 400;
    font-family: inherit;
    background: none;
    border: none;
    cursor: pointer;
    color: #d13438;
    border-radius: var(--radius-sm);
    width: 100%;
}

@media (max-width: 1199.98px) {
    .nav-fallback-links { display: none; }
    .nav-hamburger { display: inline-flex; }
    .nav-fallback-search { display: none; }
    .nav-fallback-signin,
    .nav-fallback-getstarted { display: none; }
    .nav-fallback-account { display: none !important; }
    .nav-fallback-lang .nav-menu-trigger { padding: 6px 4px; }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 20px;
        --section-spacing: 64px;
        --hero-padding-top: 72px;
        --hero-padding-bottom: 56px;
    }

    h2 { font-size: 28px; }

    .page-header p { font-size: 15px; padding: 0 1rem; }
    .page-header-content,
    .tut-hero .container { text-align: center; }
    .page-header-content p,
    .tut-hero .lede { margin-left: auto; margin-right: auto; }

    .content-section { padding: 48px 0; }

    .content-grid,
    .content-grid.three-col {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .content-grid.auto-fit {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .card { padding: 1.5rem; }

    .pillars-grid { grid-template-columns: 1fr; gap: 0; }
    .pillar { padding: 28px 0; align-items: center; text-align: center; }
    .pillar:first-child { padding-top: 0; }
    .pillar:last-child { padding-bottom: 0; }
    .pillar:not(:last-child) { border-right: none; border-bottom: 1px solid var(--border-warm-light); }
    .cta-close-actions { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 16px;
        --hero-padding-top: 56px;
        --hero-padding-bottom: 40px;
    }

    .card { padding: 1rem; }
    .content-section { padding: 36px 0; }
}

/* ── Post-hero section rhythm ───────────────────────────────────────────────── */
/* After a dark hero the page body is uniformly --bg-cream, which reads flat.   */
/* Even-numbered sections pick up --bg-warm-tint, creating a cream ↔ tint       */
/* alternation. The hero is always section:nth-of-type(1) (odd), so the first   */
/* content section is always even → tint → a soft visual landing after the dark. */
/* Explicitly-branded sections (.enterprise-cta) are excluded so their colors   */
/* are not overridden.                                                           */
section:nth-of-type(even):not(.dark-hero):not(.enterprise-cta) {
    background: var(--bg-warm-tint);
}

/* ── Dark hero variant ──────────────────────────────────────────────────────── */
/* Add class="dark-hero" to any .page-header / .tut-hero / .hero section.       */
.dark-hero {
    background: var(--dark-hero-bg) !important;
    border-bottom-color: var(--dark-hero-border);
}
/* section.dark-hero at 0,2,1 beats section.hero .eyebrow at 0,2,1 by source order */
.dark-hero .eyebrow,
section.dark-hero .eyebrow { color: var(--dark-hero-eyebrow); letter-spacing: 0.1em; }
.dark-hero h1 { color: var(--dark-hero-text); }
.dark-hero .lede { color: var(--dark-hero-text-secondary); }
.dark-hero .highlight { color: var(--dark-hero-eyebrow); }
.dark-hero .emphasis { color: var(--dark-hero-emphasis); }
.dark-hero .billing-label { color: var(--dark-hero-text-secondary); }
.dark-hero .btn-secondary {
    color: var(--dark-hero-btn-text);
    border-color: var(--dark-hero-btn-border);
    background: transparent;
}
.dark-hero .btn-secondary:hover {
    color: var(--dark-hero-text);
    border-color: rgba(255, 255, 255, 0.55);
    background: rgba(255, 255, 255, 0.07);
}