/* AIToAIWeb.com - Main Stylesheet */

/* ========================================================
   RESET + BASE
   ======================================================== */

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

html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.65;
    padding-top: var(--header-height);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); }

img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ========================================================
   DESIGN TOKENS (inline <style> from bootstrap.php sets
   these; these are fallback defaults matching the inline)
   ======================================================== */

:root {
    --color-bg:           #060d1b;
    --color-surface:      #0d1830;
    --color-surface-2:    rgba(255,255,255,0.04);
    --color-surface-hover:#111f38;
    --color-border:       rgba(56,189,248,0.10);
    --color-border-accent:rgba(56,189,248,0.28);
    --color-text:         #c8d4e8;
    --color-text-heading: #f1f5f9;
    --color-text-muted:   #546880;
    --color-accent:       #38bdf8;
    --color-accent-hover: #7dd3fc;
    --font-heading: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body:    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-mono:    'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    --header-height: 64px;
    --radius:    8px;
    --radius-lg: 12px;
    --max-width: 1200px;
    --transition: 0.15s ease;
}

/* ========================================================
   TYPOGRAPHY
   ======================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 300;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--color-text-heading);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.35rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
h4 { font-size: 1.05rem; font-weight: 400; }

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

/* ========================================================
   PROSE
   ======================================================== */

.prose { max-width: 720px; }
.prose p { margin-bottom: 1.25em; }
.prose h2 { margin: 2em 0 0.75em; }
.prose h3 { margin: 1.5em 0 0.5em; }
.prose ul, .prose ol { margin: 0.75em 0 1.25em 1.5em; list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin-bottom: 0.4em; line-height: 1.6; }
.prose a { border-bottom: 1px solid var(--color-border); }
.prose a:hover { border-color: var(--color-accent); }
.prose strong { font-weight: 600; color: var(--color-text-heading); }
.prose blockquote {
    border-left: 3px solid var(--color-accent);
    margin: 1.5em 0;
    padding: 0.75em 1.25em;
    color: var(--color-text-muted);
    font-style: italic;
}
.prose code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--color-surface-2);
    padding: 0.15em 0.4em;
    border-radius: 3px;
    color: var(--color-accent-hover);
}
.prose pre {
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1em 1.25em;
    overflow-x: auto;
    margin: 1.5em 0;
}
.prose pre code { background: none; padding: 0; font-size: 0.9em; }

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

.page-wrapper {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2.5rem 1.25rem 4rem;
}

.content-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 3rem;
    align-items: start;
}

.content-layout--no-sidebar {
    grid-template-columns: 1fr;
    max-width: 860px;
}

.content-main { min-width: 0; }

/* ========================================================
   BUTTONS
   ======================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.65rem 1.5rem;
    border-radius: var(--radius);
    font-size: 0.88rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
    cursor: pointer;
    text-decoration: none;
    line-height: 1.3;
    white-space: nowrap;
}

.btn--primary {
    background: var(--color-accent);
    color: #000;
    border: 1px solid var(--color-accent);
}
.btn--primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #000;
    box-shadow: 0 0 20px rgba(56,189,248,0.35);
}

.btn--ghost {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
}
.btn--ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }

.btn--outline {
    background: transparent;
    border: 1px solid var(--color-border-accent);
    color: var(--color-accent);
}
.btn--outline:hover {
    background: rgba(56,189,248,0.06);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn--sm { padding: 0.45rem 1rem; font-size: 0.8rem; }
.btn--lg { padding: 0.85rem 2rem; font-size: 0.95rem; }

/* ========================================================
   SITE HEADER / NAV
   ======================================================== */

.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: var(--header-height);
    background: rgba(6,13,27,0.94);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 2.5rem;
    padding: 0 1.25rem;
}

.site-logo a {
    display: flex;
    align-items: baseline;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 300;
    letter-spacing: -0.03em;
    color: var(--color-text-heading);
}
.site-logo a:hover { color: var(--color-accent); }

.site-logo__ai   { color: var(--color-accent); font-weight: 500; }
.site-logo__web  { color: var(--color-text-heading); }

.site-nav { margin-left: auto; }

.site-nav__list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.site-nav__list a {
    display: block;
    padding: 0.35rem 0.75rem;
    font-size: 0.85rem;
    letter-spacing: 0.01em;
    color: var(--color-text-muted);
    transition: color var(--transition);
}

.site-nav__list a:hover,
.site-nav__list a.is-active { color: var(--color-text); }

.site-nav__list a.nav-link--cta { color: var(--color-accent); }
.site-nav__list a.nav-link--cta:hover { color: var(--color-accent-hover); }

/* Hamburger */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    margin-left: auto;
    padding: 6px;
    width: 40px;
    height: 40px;
    color: var(--color-text-muted);
}

.nav-hamburger span:not(.nav-hamburger__label) {
    display: block;
    height: 1.5px;
    background: currentColor;
    border-radius: 2px;
    transition: transform 0.25s, opacity 0.25s;
}

.nav-hamburger__label {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
}

.nav-hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* Mobile overlay (created by nav.js) */
.nav-mobile-overlay {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0; bottom: 0;
    background: rgba(6,13,27,0.98);
    backdrop-filter: blur(16px);
    z-index: 99;
    padding: 2rem 1.5rem;
    overflow-y: auto;
}

.nav-mobile-overlay.is-open { display: block; }

.nav-mobile-overlay a {
    display: block;
    padding: 1rem 0;
    font-size: 1.2rem;
    font-family: var(--font-heading);
    font-weight: 300;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    letter-spacing: -0.01em;
}
.nav-mobile-overlay a:last-child { border-bottom: none; }
.nav-mobile-overlay a:hover,
.nav-mobile-overlay a.is-active { color: var(--color-accent); }

/* ========================================================
   BREADCRUMBS
   ======================================================== */

.breadcrumbs {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.75rem 1.25rem 0;
}

.breadcrumbs__list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.25rem 0.5rem;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.breadcrumbs__item a { color: var(--color-text-muted); }
.breadcrumbs__item a:hover { color: var(--color-accent); }

.breadcrumbs__item + .breadcrumbs__item::before {
    content: '/';
    opacity: 0.4;
}

.breadcrumbs__item.is-current span { color: var(--color-text); }

/* ========================================================
   SECTION HEADERS (generic)
   ======================================================== */

.section-header { margin-bottom: 2rem; }

.section-header__eyebrow {
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: 0.6rem;
}
.section-header__eyebrow a { color: inherit; }
.section-header__eyebrow a:hover { color: var(--color-accent-hover); }

.section-header__title { color: var(--color-text-heading); margin-bottom: 0.6rem; }

.section-header__lead {
    font-size: 1rem;
    color: var(--color-text-muted);
    max-width: 580px;
    line-height: 1.65;
    margin-bottom: 0;
}

/* ========================================================
   HOMEPAGE HERO
   ======================================================== */

.hero {
    padding: 5rem 1.25rem 4rem;
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 900px;
    height: 100%;
    background:
        radial-gradient(ellipse 70% 55% at 50% 38%, rgba(56,189,248,0.09) 0%, transparent 65%),
        radial-gradient(ellipse 40% 35% at 50% 30%, rgba(14,165,233,0.05) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.hero__bg-network { display: none; }

.hero__inner { position: relative; z-index: 1; }

.hero__headline {
    font-family: var(--font-heading);
    font-size: clamp(2.25rem, 6vw, 4rem);
    font-weight: 200;
    letter-spacing: -0.04em;
    line-height: 1.05;
    color: var(--color-text-heading);
    margin-bottom: 1.25rem;
    text-shadow: 0 0 80px rgba(56,189,248,0.15), 0 0 160px rgba(56,189,248,0.07);
}

.hero__subtext {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.hero__ctas {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Right visual column -- hidden on mobile, suppressed here */
.hero__visual { display: none; }

/* Feature bar */
.feature-bar {
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
    background: var(--color-surface);
    padding: 0.6rem 0;
    mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}

.feature-bar__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.feature-bar__label {
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

.feature-bar__pills { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.feature-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.75rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    white-space: nowrap;
}
.feature-pill::before {
    content: '';
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--color-accent);
    opacity: 0.6;
    flex-shrink: 0;
}

/* ========================================================
   HOMEPAGE SECTIONS
   ======================================================== */

.home-section {
    border-top: 1px solid var(--color-border);
}

.home-section .container,
.home-section > .container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 4rem 1.25rem;
}

/* Content tiles */
.content-tiles-section { border-top: 1px solid var(--color-border); }

.content-tiles-section .container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 3.5rem 1.25rem;
}

.content-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.25rem;
}

.content-tile {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    color: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.content-tile:hover {
    border-color: rgba(56,189,248,0.5);
    box-shadow:
        0 0 0 1px rgba(56,189,248,0.2),
        0 0 18px rgba(56,189,248,0.15),
        0 0 48px rgba(56,189,248,0.08),
        0 12px 32px rgba(0,0,0,0.5);
    color: inherit;
}

.content-tile--highlight {
    border-color: rgba(56,189,248,0.25);
    background: rgba(56,189,248,0.04);
}

.content-tile__icon { font-size: 1.4rem; line-height: 1; margin-bottom: 0.25rem; }

.content-tile__label,
.content-tile__title {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--color-text-heading);
}

.content-tile__desc {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    line-height: 1.55;
    margin: 0;
}

/* Two-col section */
.two-col-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.two-col-section__text h2 { margin-bottom: 0.75rem; }
.two-col-section__text p { color: var(--color-text-muted); line-height: 1.7; }

/* Feature grid chips */
.feature-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 1.25rem;
}

.feature-grid__item {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.8rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: border-color var(--transition), color var(--transition);
}
.feature-grid__item:hover { border-color: var(--color-accent); color: var(--color-accent); }
.feature-grid__label { color: inherit; }

/* CTA band */
.cta-band {
    background: linear-gradient(135deg, rgba(56,189,248,0.05) 0%, rgba(14,165,233,0.03) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-accent);
}

.cta-band__content {
    max-width: 640px;
    text-align: center;
    margin: 0 auto;
    padding: 3rem 2rem;
}
.cta-band__content h2 { margin-bottom: 0.75rem; }
.cta-band__content p { color: var(--color-text-muted); margin-bottom: 1.75rem; font-size: 0.95rem; line-height: 1.65; }

/* Cert section */
.cert-section {
    display: flex;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.cert-section__content { flex: 1; min-width: 260px; }
.cert-section__content h2 { margin-bottom: 0.75rem; }
.cert-section__content p { color: var(--color-text-muted); margin-bottom: 1.5rem; font-size: 0.95rem; line-height: 1.65; }

.cert-section__badge { flex-shrink: 0; }

.cert-badge {
    width: 148px; height: 148px;
    border-radius: 50%;
    border: 2px solid var(--color-border-accent);
    background: radial-gradient(circle, var(--color-surface-hover) 0%, var(--color-surface) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 24px rgba(56,189,248,0.12);
}

.cert-badge__inner { text-align: center; padding: 1rem; }

.cert-badge__title {
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    font-weight: 600;
    line-height: 1.4;
}

.cert-badge__sub {
    font-size: 0.82rem;
    font-weight: 300;
    color: var(--color-text-heading);
    margin-top: 0.3rem;
}

/* Constellation section */
.constellation-section h2 { margin-bottom: 0.4rem; }
.constellation-section > p { color: var(--color-text-muted); margin-bottom: 1.75rem; }

.constellation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
}

.constellation-node {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.9rem 1rem;
    text-decoration: none;
    transition: border-color var(--transition), color var(--transition);
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    color: inherit;
}
.constellation-node:hover { border-color: var(--color-accent); color: inherit; }

.constellation-node__name { font-size: 0.85rem; color: var(--color-text-muted); font-weight: 400; }
.constellation-node__role { font-size: 0.75rem; color: var(--color-text-muted); opacity: 0.6; }

/* Homepage sections (human-vs-ai, home-section__content, final CTA) */
.home-section__content {
    max-width: 640px;
    text-align: center;
    margin: 0 auto;
}
.home-section__content h2 { margin-bottom: 0.75rem; }
.home-section__content p { color: var(--color-text-muted); margin-bottom: 1.75rem; }

.home-section__cta { text-align: center; margin-top: 2.5rem; }

.final-cta {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}
.final-cta h2 { margin-bottom: 0.75rem; }
.final-cta p { color: var(--color-text-muted); margin-bottom: 1.75rem; font-size: 0.95rem; line-height: 1.65; }

/* Article grid (homepage) */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.25rem;
}

.article-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    transition: border-color var(--transition);
    color: inherit;
    text-decoration: none;
}
.article-card:hover { border-color: var(--color-accent); color: inherit; }

.article-card__category {
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    font-weight: 500;
}

.article-card__title {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--color-text-heading);
    line-height: 1.35;
}

.article-card__excerpt {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    margin: 0;
}

/* ========================================================
   ARTICLE TEMPLATE
   ======================================================== */

.article-header { margin-bottom: 2.5rem; }

.article-header__category {
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: 0.75rem;
}
.article-header__category a { color: inherit; }
.article-header__category a:hover { color: var(--color-accent-hover); }

.article-header__excerpt {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    line-height: 1.65;
    margin-top: 0.75rem;
    margin-bottom: 0.75rem;
}

.article-header__meta { font-size: 0.8rem; color: var(--color-text-muted); }

.article-body { margin-bottom: 2.5rem; }

.article-footer { margin-top: 2.5rem; border-top: 1px solid var(--color-border); padding-top: 2rem; }
.article-footer__heading { font-size: 1.1rem; font-weight: 400; margin-bottom: 1rem; }

.article-related {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.article-related__item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.1rem;
    text-decoration: none;
    transition: border-color var(--transition);
    color: inherit;
}
.article-related__item:hover { border-color: var(--color-accent); color: inherit; }
.article-related__title { font-size: 0.9rem; font-weight: 400; color: var(--color-text-heading); margin-bottom: 0.3rem; }
.article-related__excerpt { font-size: 0.78rem; color: var(--color-text-muted); line-height: 1.5; }

/* ========================================================
   LIBRARY / CATEGORY
   ======================================================== */

.category-header { margin-bottom: 2rem; }
.category-header__intro { font-size: 0.95rem; color: var(--color-text-muted); margin-top: 0.5rem; line-height: 1.65; }

.subcats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.subcat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.1rem;
    text-decoration: none;
    transition: border-color var(--transition);
    color: inherit;
    display: block;
}
.subcat-card:hover { border-color: var(--color-accent); color: inherit; }
.subcat-card__title { font-family: var(--font-heading); font-size: 0.9rem; font-weight: 400; color: var(--color-text-heading); margin-bottom: 0.3rem; }
.subcat-card__desc  { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.5; margin: 0; }

.article-list { display: flex; flex-direction: column; gap: 0.75rem; }

.article-list__item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    transition: border-color var(--transition);
    color: inherit;
    text-decoration: none;
}
.article-list__item:hover { border-color: var(--color-accent); color: inherit; }

.article-list__category {
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    font-weight: 500;
}
.article-list__title { font-family: var(--font-heading); font-size: 0.95rem; font-weight: 400; color: var(--color-text-heading); }
.article-list__excerpt { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.5; margin: 0; }
.article-list__meta { font-size: 0.75rem; color: var(--color-text-muted); margin-top: 0.15rem; }

/* Library page */
.library-header { margin-bottom: 2rem; }
.library-header__subtext { font-size: 1rem; color: var(--color-text-muted); margin-top: 0.5rem; }

.library-categories { margin-bottom: 2.5rem; }
.library-categories h2 { margin-bottom: 1.25rem; }

.category-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.category-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-decoration: none;
    transition: border-color var(--transition);
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    color: inherit;
}
.category-card:hover { border-color: var(--color-accent); color: inherit; }
.category-card__title { font-family: var(--font-heading); font-size: 0.95rem; font-weight: 400; color: var(--color-text-heading); }
.category-card__desc  { font-size: 0.82rem; color: var(--color-text-muted); line-height: 1.5; flex: 1; margin: 0; }
.category-card__count { font-size: 0.75rem; color: var(--color-accent); margin-top: 0.25rem; }

.library-recent h2 { margin-bottom: 1.25rem; }

/* ========================================================
   DIRECTORY
   ======================================================== */

.dir-category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.dir-category-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    color: inherit;
    text-decoration: none;
}
.dir-category-card:hover {
    border-color: rgba(56,189,248,0.5);
    box-shadow:
        0 0 0 1px rgba(56,189,248,0.2),
        0 0 20px rgba(56,189,248,0.12),
        0 10px 28px rgba(0,0,0,0.4);
    color: inherit;
}

.dir-category-card__title { font-family: var(--font-heading); font-size: 0.95rem; font-weight: 400; color: var(--color-text-heading); }
.dir-category-card__desc  { font-size: 0.82rem; color: var(--color-text-muted); line-height: 1.5; flex: 1; margin: 0; }
.dir-category-card__count { font-size: 0.75rem; color: var(--color-accent); }

.directory-apply {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    margin-top: 1rem;
}

.dir-listing-list { display: flex; flex-direction: column; gap: 1rem; }

.dir-listing-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    color: inherit;
    text-decoration: none;
}
.dir-listing-card:hover {
    border-color: rgba(56,189,248,0.5);
    box-shadow:
        0 0 0 1px rgba(56,189,248,0.2),
        0 0 20px rgba(56,189,248,0.12),
        0 10px 28px rgba(0,0,0,0.4);
    color: inherit;
}

.dir-listing-card__title  { font-family: var(--font-heading); font-size: 0.9rem; font-weight: 400; color: var(--color-text-heading); }
.dir-listing-card__desc   { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.5; margin: 0; }
.dir-listing-card__badge  { align-self: flex-start; }

/* Directory listing detail */
.dir-listing-page__url { margin-top: 0.4rem; font-size: 0.88rem; }
.dir-listing-page__url a { color: var(--color-accent); }
.dir-listing-page__badges { display: flex; gap: 0.5rem; flex-wrap: wrap; margin: 1rem 0; }
.dir-listing-page__desc { margin-bottom: 2rem; }
.dir-listing-page__features h2 { margin-bottom: 1rem; font-size: 1rem; font-weight: 400; }

.readiness-list { display: flex; flex-direction: column; gap: 0.6rem; list-style: none; }
.readiness-list li { font-size: 0.85rem; padding: 0.75rem 1rem; border-radius: var(--radius); border: 1px solid var(--color-border); }
.readiness-list__item--yes { background: rgba(16,185,129,0.06); border-color: rgba(16,185,129,0.2); color: #10b981; }
.readiness-list__item--no  { color: var(--color-text-muted); }

/* Badges */
.badge {
    display: inline-block;
    padding: 0.15rem 0.6rem;
    border-radius: 12px;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.badge--green { background: rgba(16,185,129,0.1); color: #10b981; border: 1px solid rgba(16,185,129,0.25); }
.badge--blue  { background: rgba(56,189,248,0.08); color: var(--color-accent); border: 1px solid var(--color-border-accent); }

/* ========================================================
   GLOSSARY
   ======================================================== */

.glossary-alpha-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 2.5rem;
}

.glossary-alpha-nav__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem; height: 2rem;
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: 4px;
    border: 1px solid var(--color-border-accent);
    color: var(--color-accent);
    text-decoration: none;
    transition: background var(--transition);
}
.glossary-alpha-nav__link:hover { background: rgba(56,189,248,0.08); color: var(--color-accent); }

.glossary-list { display: flex; flex-direction: column; gap: 2.5rem; }

.glossary-letter-section {}

.glossary-letter-heading {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
    padding-bottom: 0.5rem;
    margin-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

.glossary-terms { display: flex; flex-direction: column; gap: 0.5rem; }

.glossary-term-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: border-color var(--transition);
    color: inherit;
}
.glossary-term-item:hover { border-color: var(--color-accent); }

.glossary-term-item dt { font-weight: 500; font-size: 0.9rem; color: var(--color-text-heading); margin-bottom: 0.2rem; }
.glossary-term-item dt a { color: var(--color-text-heading); text-decoration: none; }
.glossary-term-item dt a:hover { color: var(--color-accent); }
.glossary-term-item dd { font-size: 0.78rem; color: var(--color-text-muted); line-height: 1.4; }

/* Glossary term page */
.glossary-term-page__short-def {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}
.glossary-term-page__also-known-as { font-size: 0.82rem; color: var(--color-text-muted); }

.glossary-term-page__body { margin: 2rem 0; }

.glossary-term-page__related { margin-top: 2rem; padding-top: 1.25rem; border-top: 1px solid var(--color-border); }
.glossary-term-page__related h2 { font-size: 1rem; font-weight: 400; margin-bottom: 1rem; }

.related-terms-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
}
.related-term {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem;
    text-decoration: none;
    transition: border-color var(--transition);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    color: inherit;
}
.related-term:hover { border-color: var(--color-accent); color: inherit; }
.related-term strong { font-size: 0.85rem; color: var(--color-text-heading); }
.related-term span   { font-size: 0.75rem; color: var(--color-text-muted); line-height: 1.4; }

/* ========================================================
   FAQ
   ======================================================== */

.faq-page h1 { margin-bottom: 0.5rem; }
.page-header__intro { font-size: 0.95rem; color: var(--color-text-muted); margin-top: 0.4rem; line-height: 1.6; margin-bottom: 2.5rem; }
.page-header__category { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.09em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 0.5rem; }
.page-header__category a { color: inherit; }
.page-header__category a:hover { color: var(--color-accent-hover); }

.faq-section { margin-bottom: 2.5rem; }

.faq-section__heading {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text-muted);
    letter-spacing: 0.03em;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.faq-list { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1rem; }

.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

.faq-item__question {
    padding: 1rem 1.25rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-text-heading);
}

.faq-item__answer {
    padding: 0 1.25rem 1rem;
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

.faq-cta {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

/* ========================================================
   CONTACT
   ======================================================== */

.contact-form {
    max-width: 560px;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.82rem; font-weight: 500; color: var(--color-text-muted); }

.form-group input,
.form-group textarea {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.7rem 0.9rem;
    font: inherit;
    font-size: 0.9rem;
    color: var(--color-text);
    width: 100%;
    transition: border-color var(--transition);
    outline: none;
    -webkit-appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-text-muted); opacity: 0.5; }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--color-accent); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group--honey { display: none !important; }

.contact-success {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    background: rgba(16,185,129,0.08);
    border: 1px solid rgba(16,185,129,0.3);
    color: #10b981;
    margin-bottom: 1.5rem;
}

/* ========================================================
   PAGE + ERROR
   ======================================================== */

.page-content { max-width: 760px; }
.page-content h1 { margin-bottom: 1rem; }

.error-page {
    text-align: center;
    padding: 5rem 1.25rem 4rem;
    max-width: 500px;
    margin: 0 auto;
}
.error-page__code {
    font-size: 6rem;
    font-family: var(--font-heading);
    font-weight: 200;
    letter-spacing: -0.05em;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 1rem;
    opacity: 0.4;
}
.error-page h1 { margin-bottom: 0.75rem; }
.error-page p { color: var(--color-text-muted); margin-bottom: 2rem; }
.error-page__links { display: flex; justify-content: center; gap: 0.75rem; flex-wrap: wrap; }

/* ========================================================
   SIDEBAR BLOCKS
   ======================================================== */

.content-sidebar { display: flex; flex-direction: column; gap: 1.5rem; }

.sidebar-block {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
}

.sidebar-block__heading,
.sidebar-block__title {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

.sidebar-block__text {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.sidebar-nav { display: flex; flex-direction: column; gap: 0.1rem; }

.sidebar-nav__link {
    display: block;
    padding: 0.3rem 0;
    font-size: 0.83rem;
    color: var(--color-text-muted);
    transition: color var(--transition);
    text-decoration: none;
}
.sidebar-nav__link:hover { color: var(--color-accent); }

/* ========================================================
   SITE FOOTER
   ======================================================== */

.site-footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: 3rem 0 2rem;
    margin-top: 4rem;
}

.site-footer__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.25rem;
}

.site-footer__grid,
.site-footer__top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

.site-footer__name,
.site-footer__brand-name {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 300;
    color: var(--color-text-heading);
    letter-spacing: -0.02em;
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
}

.site-footer__tagline {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    margin-bottom: 0.5rem;
}

.site-footer__ai-links {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 0.75rem;
}

.site-footer__ai-label {
    font-size: 0.68rem;
    color: var(--color-text-muted);
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.site-footer__ai-link {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    transition: color var(--transition);
}
.site-footer__ai-link:hover { color: var(--color-accent); }

.site-footer__col-heading {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 0.9rem;
    opacity: 0.7;
}

.site-footer__links { display: flex; flex-direction: column; gap: 0.5rem; list-style: none; }
.site-footer__links a { font-size: 0.83rem; color: var(--color-text-muted); transition: color var(--transition); }
.site-footer__links a:hover { color: var(--color-accent); }

.site-footer__bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    opacity: 0.65;
}

/* ========================================================
   UTILITY
   ======================================================== */

.statcounter { display: none; }
.text-muted { color: var(--color-text-muted); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

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

@media (max-width: 1024px) {
    .site-footer__grid,
    .site-footer__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .site-nav { display: none; }
    .nav-hamburger { display: flex; }

    .content-layout { grid-template-columns: 1fr; }
    .content-sidebar { order: -1; }

    .two-col-section { grid-template-columns: 1fr; gap: 2rem; }
    .cert-section { flex-direction: column; }

    .site-footer__grid,
    .site-footer__top { grid-template-columns: 1fr 1fr; gap: 2rem; }

    .hero { padding: 3.5rem 1.25rem 3rem; }
}

@media (max-width: 480px) {
    .site-footer__grid,
    .site-footer__top { grid-template-columns: 1fr; }

    .site-footer__bottom { flex-direction: column; align-items: flex-start; }

    .hero__ctas { flex-direction: column; align-items: stretch; }
    .hero__ctas .btn { text-align: center; }

    .content-tiles { grid-template-columns: 1fr; }
    .article-grid { grid-template-columns: 1fr; }
}