/* Spatial editorial theme
   Charcoal #090907 · Earth brown #6C5636 · Burnt amber #B99D73
   Burnt orange #C85C30 for rules, the primary button, and depth light.
   Deeper and redder than amberwi.com's #d96a0f. */

:root {
    --bg: #090907;
    --earth: #6C5636;
    --accent: #B99D73;
    --accent-hover: #CDB592;
    --ember: #C85C30;
    --ember-hot: #D26638;
    --ember-glow: rgba(200, 92, 48, 0.48);
    --text: #F4EFE6;
    --muted: #C4B6A2;
    --ink: #090907;
    --glass-border: rgba(108, 86, 54, 0.72);
    --panel: rgba(22, 18, 14, 0.78);
    --serif: "Instrument Serif", "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
    --sans: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
    --radius: 14px;
    --radius-lg: 18px;
    --gap: 1.25rem;
    --shadow-float:
        inset 0 1px 0 rgba(244, 239, 230, 0.07),
        0 1px 1px rgba(0, 0, 0, 0.45),
        0 10px 22px -14px rgba(0, 0, 0, 0.72),
        0 26px 44px -28px rgba(0, 0, 0, 0.85);
    --shadow-plate:
        inset 0 1px 0 rgba(244, 239, 230, 0.08),
        -7px 12px 0 rgba(28, 23, 17, 0.96),
        -7px 12px 0 1px rgba(108, 86, 54, 0.55),
        0 1px 2px rgba(0, 0, 0, 0.4),
        -12px 26px 36px -18px rgba(0, 0, 0, 0.78);
    --teal: #8AA399;
    --teal-dim: rgba(108, 86, 54, 0.28);
    color-scheme: dark;
}

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

html { scroll-behavior: smooth; }

::selection {
    background: rgba(185, 157, 115, 0.38);
    color: var(--text);
}

#about, #expertise, #community, #contact, #blog,
.section-label, .post-body h2, #cups-calculator {
    scroll-margin-top: 6.25rem;
}

body {
    font-family: var(--sans);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.65;
    font-size: 1.0625rem;
    min-height: 100vh;
    background-image:
        radial-gradient(ellipse 52% 40% at 18% 8%, rgba(200, 92, 48, 0.32), transparent 62%),
        radial-gradient(ellipse 70% 42% at 0% -8%, rgba(108, 86, 54, 0.34), transparent 58%),
        radial-gradient(ellipse 42% 32% at 78% 108%, rgba(108, 86, 54, 0.22), transparent 60%);
    background-attachment: fixed;
}

a { color: var(--accent); }
a:hover { color: var(--accent-hover); }

img { max-width: 100%; height: auto; display: block; }

:focus-visible {
    outline: 2px solid var(--ember);
    outline-offset: 3px;
    box-shadow: 0 0 0 4px rgba(200, 92, 48, 0.22);
}

h1, h2, h3, h4 {
    font-family: var(--serif);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.08;
    color: var(--text);
    text-wrap: balance;
}

.wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Floating nav */
.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    padding: 0.7rem 0 1rem;
    background: linear-gradient(to bottom, #090907 58%, rgba(9, 9, 7, 0.88) 80%, rgba(9, 9, 7, 0));
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.55rem 1.1rem;
    padding: 0.55rem 0.55rem 0.55rem 1.15rem;
    border-radius: 16px;
    background: rgba(16, 14, 11, 0.72);
    border: 1px solid rgba(108, 86, 54, 0.75);
    box-shadow:
        inset 0 1px 0 rgba(244, 239, 230, 0.07),
        0 1px 2px rgba(0, 0, 0, 0.4),
        0 14px 32px -18px rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(18px) saturate(1.15);
    -webkit-backdrop-filter: blur(18px) saturate(1.15);
}

.logo {
    font-family: var(--serif);
    font-size: 1.35rem;
    color: var(--text);
    text-decoration: none;
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1;
}

.logo:hover { color: var(--text); }

.nav-links {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    gap: 0.1rem;
    padding: 0;
    background: transparent;
    border: 0;
}

.nav-links a {
    position: relative;
    color: var(--muted);
    text-decoration: none;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    padding: 0.5rem 0.7rem;
    border-radius: 999px;
    transition: color 0.2s ease, background 0.2s ease;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0.55rem;
    right: 0.55rem;
    bottom: 0.28rem;
    height: 1px;
    background: var(--ember);
    box-shadow: 0 0 8px var(--ember-glow);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.active,
.nav-links a[aria-current="page"],
.nav-links a[aria-current="location"] {
    color: var(--ember);
    background: transparent;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after,
.nav-links a.active::after,
.nav-links a[aria-current="page"]::after,
.nav-links a[aria-current="location"]::after {
    transform: scaleX(1);
}

.nav-links a.active,
.nav-links a[aria-current="page"],
.nav-links a[aria-current="location"] {
    font-weight: 700;
}

.nav-links a.active::after,
.nav-links a[aria-current="page"]::after,
.nav-links a[aria-current="location"]::after {
    height: 2px;
}

/* Layered panels */
.glass {
    position: relative;
    background:
        linear-gradient(180deg, rgba(244, 239, 230, 0.045), rgba(244, 239, 230, 0.012) 42%, rgba(9, 9, 7, 0.15)),
        var(--panel);
    backdrop-filter: blur(16px) saturate(1.12);
    -webkit-backdrop-filter: blur(16px) saturate(1.12);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-float);
    transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}

.hero-cell,
.photo-cell,
.page-hero,
.article-card,
#contact.glass {
    box-shadow: var(--shadow-plate);
}

.bento > .glass.span-1:hover,
.note-card:hover,
.post-card:hover,
.bento > .glass.span-1:focus-visible,
.note-card:focus-visible,
.post-card:focus-visible {
    transform: translateY(-4px);
    border-color: rgba(200, 92, 48, 0.75);
    box-shadow:
        inset 0 1px 0 rgba(244, 239, 230, 0.1),
        0 0 0 1px rgba(200, 92, 48, 0.4),
        0 0 28px -4px var(--ember-glow),
        0 16px 28px -16px rgba(0, 0, 0, 0.7),
        0 28px 48px -24px rgba(0, 0, 0, 0.85);
}

.hero-cell,
.page-hero,
.article-card {
    border-left: 3px solid var(--ember);
}

.hero-cell {
    --py: 0px;
    transform: translate3d(0, var(--py), 0);
    box-shadow:
        var(--shadow-plate),
        -28px -18px 70px -18px rgba(200, 92, 48, 0.42),
        0 0 90px -24px rgba(200, 92, 48, 0.28);
}

.hero-cell:hover,
.hero-cell:focus-within {
    transform: translate3d(0, calc(var(--py) - 3px), 0);
    border-color: rgba(200, 92, 48, 0.8);
    box-shadow:
        var(--shadow-plate),
        0 0 0 1px rgba(200, 92, 48, 0.35),
        0 0 36px -6px var(--ember-glow);
}

.article-card.glass:hover,
.page-hero.glass:hover,
#contact.glass:hover,
.article-card.glass:focus-within,
.page-hero.glass:focus-within {
    transform: none;
    border-color: rgba(200, 92, 48, 0.55);
    box-shadow:
        var(--shadow-plate),
        0 0 32px -10px var(--ember-glow);
}

.bento {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.15rem 1.25rem;
    padding: 0.25rem 0 3.25rem;
    align-items: stretch;
}

.bento::before {
    content: "";
    position: absolute;
    z-index: 0;
    pointer-events: none;
    width: min(740px, 82%);
    height: 460px;
    left: -8%;
    top: -3rem;
    background: radial-gradient(ellipse at 40% 42%, rgba(200, 92, 48, 0.38), rgba(200, 92, 48, 0.1) 42%, transparent 70%);
}

.bento > * { position: relative; z-index: 1; min-width: 0; }
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.span-1 { grid-column: span 1; }

.cell { padding: 1.5rem 1.6rem; }
.cell-lg { padding: 1.9rem 2.05rem; border-radius: var(--radius-lg); }

.cell h2 {
    font-size: clamp(1.45rem, 2.2vw, 1.8rem);
    margin-bottom: 0.7rem;
}

.cell h3 {
    font-size: 1.4rem;
    margin-bottom: 0.45rem;
}

.cell p {
    color: var(--muted);
    font-size: 1rem;
}

.cell p + p { margin-top: 0.7rem; }
.cell p a { text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }

.kicker,
.section-label,
.expertise-code,
.role-label,
.article-date,
.note-card-date,
.post-card-date {
    color: var(--accent);
    font-family: var(--sans);
    font-weight: 600;
    text-transform: uppercase;
}

.kicker {
    font-size: 0.68rem;
    letter-spacing: 0.2em;
    margin-bottom: 0.55rem;
}

.cell .kicker { display: none; }

.section-label {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    column-gap: 0.55rem;
    grid-column: 1 / -1;
    margin: 1.35rem 0 0.15rem;
    padding: 0 0.1rem;
    font-size: 0.68rem;
    letter-spacing: 0.22em;
}

.section-label::before,
.article-date::before,
.expertise-code::before,
.role-label::before,
.post-card-date::before,
.note-card-date::before {
    content: "";
    width: 0.38rem;
    height: 0.38rem;
    border-radius: 50%;
    background: var(--ember);
    box-shadow: 0 0 8px var(--ember-glow);
    flex: 0 0 auto;
}

.article-date,
.expertise-code,
.role-label,
.post-card-date,
.note-card-date {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.section-label::after {
    content: "";
    flex-basis: 100%;
    width: 3.25rem;
    height: 1px;
    margin-top: 0.55rem;
    background: var(--ember);
}

/* Hero */
.hero-cell h1 {
    font-size: clamp(3.15rem, 6.4vw, 5.15rem);
    line-height: 0.94;
    letter-spacing: -0.03em;
    max-width: 11ch;
}

.hero-cell .hero-subtitle,
.cell .expertise-code,
.cell .role-label,
.cell .community-meta,
.post-card .post-card-date,
.note-card .note-card-date,
.article-card .article-date {
    color: var(--accent);
}

.hero-cell .hero-subtitle {
    font-family: var(--sans);
    font-size: 0.98rem;
    font-weight: 500;
    line-height: 1.45;
    margin: 1.05rem 0 1rem;
    padding-top: 0.9rem;
    border-top: 1px solid var(--ember);
    max-width: 38rem;
}

.hero-cell > p:not(.hero-subtitle) {
    color: var(--text);
    font-size: 1.05rem;
    line-height: 1.6;
    max-width: 40rem;
}

.hero-proof {
    margin-bottom: 1.45rem;
}

.btn,
.try-calc-btn {
    display: inline-block;
    background: var(--ember);
    color: var(--ink);
    text-decoration: none;
    padding: 0.8rem 1.2rem;
    font-weight: 600;
    font-size: 0.74rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    border: 1px solid var(--ember);
    border-radius: 4px;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.28),
        0 0 18px -4px var(--ember-glow),
        0 10px 18px -12px rgba(0, 0, 0, 0.8);
    transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover,
.try-calc-btn:hover,
.btn:focus-visible,
.try-calc-btn:focus-visible {
    background: var(--ember-hot);
    border-color: var(--ember-hot);
    color: var(--ink);
    transform: translateY(-2px);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.3),
        0 0 22px -2px var(--ember-glow);
}

.try-calc-btn {
    font: 600 0.74rem/1.2 var(--sans);
    letter-spacing: 0.14em;
}

/* Photo */
.photo-cell {
    padding: 0.55rem;
    display: flex;
    align-items: stretch;
    overflow: hidden;
}

.photo-cell img {
    --py: 0px;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 18%;
    border-radius: calc(var(--radius) - 4px);
    min-height: 280px;
    transform: translate3d(0, var(--py), 0) scale(1.045);
}

/* Proof chips */
.chip {
    padding: 1.2rem 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.35rem;
}

.chip-stat {
    font-family: var(--serif);
    font-size: 1.85rem;
    font-weight: 400;
    color: var(--text);
    line-height: 1.05;
    letter-spacing: -0.02em;
}

.chip-label {
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.35;
}

.expertise-code,
.role-label {
    font-size: 0.68rem;
    letter-spacing: 0.18em;
    margin-bottom: 0.45rem;
}

.about-more,
.blog-more,
.back-link,
.post-card-more,
.note-card-go {
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid rgba(185, 157, 115, 0.55);
}

#about .about-more {
    display: inline-block;
    margin-top: 0.35rem;
}

.about-more:hover,
.blog-more:hover,
.back-link:hover,
.post-card-more:hover,
.note-card-go:hover {
    color: var(--accent-hover);
    border-bottom-color: var(--accent-hover);
}

/* Notes on the homepage */
.notes-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.75rem 1.5rem;
    margin-bottom: 1.15rem;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid rgba(200, 92, 48, 0.7);
}

.notes-head h2 {
    font-size: clamp(1.7rem, 3vw, 2.2rem);
    margin: 0;
}

.notes-head .blog-more {
    margin: 0;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.notes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.9rem;
}

.note-card {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    padding: 1.05rem 1.1rem 1.1rem;
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    background: rgba(9, 9, 7, 0.45);
    border: 1px solid rgba(108, 86, 54, 0.7);
    box-shadow: inset 0 1px 0 rgba(244, 239, 230, 0.04);
    min-height: 100%;
    transition: transform 0.28s ease, border-color 0.28s ease, background 0.28s ease, box-shadow 0.28s ease;
}

.note-card:hover {
    background: rgba(108, 86, 54, 0.18);
}

.note-card-date,
.post-card-date,
.article-date {
    font-size: 0.68rem;
    letter-spacing: 0.16em;
}

.note-card h3 {
    font-size: 1.28rem;
    margin: 0;
    line-height: 1.15;
    color: var(--text);
}

.note-card p {
    color: var(--muted);
    font-size: 0.92rem;
    margin: 0;
    flex: 1;
}

.note-card-go { margin-top: 0.45rem; font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; }

#blog.notes-panel {
    background:
        linear-gradient(180deg, rgba(185, 157, 115, 0.07), rgba(22, 18, 14, 0.2) 28%, rgba(22, 18, 14, 0.72)),
        var(--panel);
    box-shadow:
        inset 3px 0 0 var(--ember),
        inset 0 1px 0 rgba(244, 239, 230, 0.06),
        0 16px 36px -24px rgba(0, 0, 0, 0.8);
}

.community-role {
    font-family: var(--serif);
    font-size: 1.7rem;
    margin: 0 0 0.35rem;
    font-weight: 400;
    color: var(--text);
    letter-spacing: -0.02em;
}

.community-meta {
    color: var(--accent);
    font-size: 0.92rem;
    font-weight: 500;
    margin-bottom: 0.85rem;
}

.contact-cell h2,
#contact h2 {
    font-size: clamp(1.7rem, 3.1vw, 2.45rem);
    max-width: 20ch;
    line-height: 1.08;
    margin-bottom: 0.7rem;
}

.contact-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;
    list-style: none;
    margin-top: 1.2rem;
}

.contact-links a {
    color: var(--text);
    text-decoration: none;
    border-bottom: 1px solid var(--ember);
    padding-bottom: 0.1rem;
    transition: color 0.2s ease;
}

.contact-links a:hover { color: var(--accent); }

.site-footer {
    border-top: 1px solid rgba(200, 92, 48, 0.65);
    padding: 1.35rem 0 2rem;
    color: var(--muted);
    font-size: 0.9rem;
    background: rgba(9, 9, 7, 0.55);
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.5rem 1.5rem;
}

.footer-links { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.footer-links a { color: var(--accent); text-decoration: none; }
.footer-links a:hover { color: var(--accent-hover); }

/* Index, blog, hubs, FAQ */
.page-hero {
    padding: 1.85rem 1.9rem 1.95rem;
    border-radius: var(--radius-lg);
}

.page-hero h1 {
    font-size: clamp(2.5rem, 5.4vw, 4.15rem);
    line-height: 0.98;
    letter-spacing: -0.03em;
    margin-bottom: 0.85rem;
    max-width: 16ch;
}

.page-intro {
    color: var(--muted);
    max-width: 44rem;
    font-size: 1.05rem;
}

.post-card {
    display: grid;
    grid-template-rows: auto 5.6rem 1fr auto;
    row-gap: 0.55rem;
    text-decoration: none;
    color: inherit;
    height: 100%;
    padding: 1.35rem 1.35rem 1.4rem;
}

.post-card:hover { color: inherit; }

.post-card h2 {
    font-size: 1.38rem;
    margin: 0;
    padding: 0;
    line-height: 1.18;
    height: 5.6rem;
    max-height: 5.6rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    align-self: start;
}

.post-card > p {
    color: var(--muted);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.5;
}

.post-card-more {
    display: inline-block;
    margin: 0.15rem 0 0;
    padding-top: 0.15rem;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    line-height: 1.4;
}

.post-card.is-feature {
    grid-template-rows: auto auto 1fr auto;
}

.post-card.is-feature h2 {
    height: auto;
    max-height: none;
    -webkit-line-clamp: unset;
    display: block;
    font-size: clamp(1.7rem, 2.6vw, 2.25rem);
    max-width: 22ch;
}

.topics-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.topics-strip a {
    display: inline-block;
    text-decoration: none;
    color: var(--text);
    background: rgba(16, 14, 11, 0.72);
    border: 1px solid rgba(108, 86, 54, 0.8);
    border-radius: 999px;
    padding: 0.48rem 0.9rem;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    box-shadow: inset 0 1px 0 rgba(244, 239, 230, 0.05), 0 8px 16px -12px rgba(0, 0, 0, 0.7);
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.topics-strip a:hover {
    background: rgba(185, 157, 115, 0.12);
    border-color: rgba(185, 157, 115, 0.7);
    color: var(--text);
    transform: translateY(-2px);
}

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

.faq-item { padding: 1.4rem 1.5rem; }

.faq-item h2 {
    font-size: clamp(1.45rem, 2.4vw, 1.85rem);
    margin-bottom: 0.7rem;
    max-width: 28ch;
    line-height: 1.12;
}

.faq-item p {
    color: var(--text);
    max-width: 42rem;
    margin: 0;
}

.faq-item p + p { margin-top: 0.75rem; }
.faq-item p a { text-decoration: underline; text-underline-offset: 3px; }
.faq-item .faq-links { font-size: 0.95rem; }

/* Articles */
.page-main { padding: 0.35rem 0 3.25rem; }

.article-card {
    padding: 2rem 2.15rem 2.2rem;
    border-radius: var(--radius-lg);
    max-width: 64rem;
}

.back-link {
    display: inline-block;
    margin-bottom: 1.35rem;
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.article-date { margin-bottom: 0.7rem; }

.article-title {
    font-size: clamp(2.45rem, 5.2vw, 4.05rem);
    max-width: 16ch;
    line-height: 0.98;
    letter-spacing: -0.03em;
    margin-bottom: 1.35rem;
    padding-bottom: 1.15rem;
    border-bottom: 1px solid var(--ember);
}

.post-body > p,
.post-body > h2,
.post-body > h3,
.post-body > ul,
.post-body > ol { max-width: 40rem; }

.post-body > figure {
    margin: 0.2rem 0 1.45rem;
}

.post-body p { margin-bottom: 1.15rem; color: var(--text); }

.post-body h2 {
    font-size: clamp(1.55rem, 2.4vw, 1.9rem);
    margin: 2.15rem 0 0.8rem;
    padding-top: 0.95rem;
    border-top: 1px solid rgba(200, 92, 48, 0.55);
    line-height: 1.12;
}

.post-body h3 {
    font-size: 1.28rem;
    margin: 1.55rem 0 0.55rem;
}

.post-body a {
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
}

.post-body ul,
.post-body ol {
    margin: 0 0 1.2rem 1.2rem;
    color: var(--text);
}

.post-body li { margin-bottom: 0.5rem; }
.post-body li::marker { color: var(--accent); }

.with-diagram {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(12.5rem, 17.5rem);
    column-gap: 1.4rem;
    align-items: start;
    margin: 2.1rem 0 0.35rem;
}

.with-diagram > h2 {
    grid-column: 1;
    grid-row: 1;
    margin: 0 0 0.8rem;
}

.diagram-copy {
    grid-column: 1;
    grid-row: 2;
    min-width: 0;
    max-width: 40rem;
}

.diagram-copy > :first-child { margin-top: 0; }

.with-diagram > figure {
    grid-column: 2;
    grid-row: 1 / span 2;
    margin: 0;
    position: sticky;
    top: 6rem;
    align-self: start;
}

.diagram-zoom {
    display: block;
    width: 100%;
    margin: 0;
    padding: 0;
    border: 1px solid var(--glass-border);
    border-radius: calc(var(--radius) - 4px);
    background: rgba(16, 14, 11, 0.72);
    box-shadow: var(--shadow-float);
    cursor: zoom-in;
    overflow: hidden;
    font: inherit;
    color: inherit;
    text-align: left;
}

.diagram-zoom img {
    width: 100%;
    height: auto;
    border: 0;
    border-radius: 0;
}

.zoom-hint {
    display: block;
    padding: 0.45rem 0.7rem 0.55rem;
    color: var(--accent);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    background: rgba(9, 9, 7, 0.55);
    border-top: 1px solid rgba(185, 157, 115, 0.28);
}

.diagram-zoom:hover,
.diagram-zoom:focus-visible {
    border-color: rgba(185, 157, 115, 0.7);
}

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3.75rem 1.25rem 1.5rem;
    background: rgba(9, 9, 7, 0.84);
    backdrop-filter: blur(16px) saturate(1.1);
    -webkit-backdrop-filter: blur(16px) saturate(1.1);
}

.lightbox[hidden] { display: none; }

.lightbox img {
    max-width: min(92vw, 1122px);
    max-height: min(86vh, 1402px);
    width: auto;
    height: auto;
    border-radius: 8px;
    border: 1px solid rgba(185, 157, 115, 0.5);
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
    background: var(--bg);
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 999px;
    border: 1px solid rgba(185, 157, 115, 0.55);
    background: rgba(16, 14, 11, 0.8);
    color: var(--text);
    font: 500 1.45rem/1 var(--sans);
    cursor: pointer;
}

.lightbox-close:hover,
.lightbox-close:focus-visible {
    border-color: var(--accent);
    background: rgba(185, 157, 115, 0.16);
    outline: none;
}

.takeaway {
    max-width: 40rem;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    background: rgba(108, 86, 54, 0.16);
    box-shadow: inset 3px 0 0 var(--ember);
    padding: 1.2rem 1.3rem;
    margin: 2rem 0;
}

.takeaway h2 {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
    color: var(--accent);
    font-size: 1.25rem;
}

.takeaway p { margin-bottom: 0; color: var(--muted); }

/* Coffee-note charts and calculator */
.post-body .chart-block,
.post-body .compare-grid,
.post-body .calc-block,
.post-body .sources {
    max-width: 52rem;
}

.chart-block,
.calc-block {
    margin: 1.75rem 0 2rem;
    padding: 1.25rem 1.35rem 1.4rem;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    background: rgba(9, 9, 7, 0.35);
    box-shadow: inset 0 1px 0 rgba(244, 239, 230, 0.04);
}

.chart-block h3,
.calc-block h3 {
    font-family: var(--serif);
    font-size: 1.35rem;
    margin: 0 0 0.35rem;
}

.chart-note,
.calc-warn {
    color: var(--muted);
    font-size: 0.86rem;
    margin-bottom: 1rem;
    line-height: 1.45;
}

.chart-note a { color: var(--accent); }

.range-chart { display: flex; flex-direction: column; gap: 0.85rem; }

.range-row {
    display: grid;
    grid-template-columns: minmax(7.5rem, 9.5rem) 1fr;
    gap: 0.65rem 0.9rem;
    align-items: center;
}

.range-label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.25;
}

.range-label span {
    display: block;
    font-weight: 400;
    font-size: 0.75rem;
    color: var(--muted);
    margin-top: 0.15rem;
}

.range-track {
    position: relative;
    height: 1.65rem;
    background: rgba(0, 0, 0, 0.35);
    border-radius: 999px;
    border: 1px solid rgba(108, 86, 54, 0.65);
}

.range-fill {
    position: absolute;
    top: 2px;
    bottom: 2px;
    border-radius: 999px;
    min-width: 4px;
}

.range-fill.licence { background: #C4B08A; left: 0; width: 4%; }
.range-fill.small { background: var(--accent); left: 0; width: 28%; }
.range-fill.medium { background: #8C7349; left: 0; width: 48%; }
.range-fill.lounge { background: #6C5636; left: 0; width: 96%; }

.range-value {
    position: absolute;
    left: 0.55rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--ink);
    white-space: nowrap;
    pointer-events: none;
}

.range-fill.licence .range-value {
    left: calc(100% + 0.45rem);
    color: var(--accent);
}

.range-fill.medium .range-value,
.range-fill.lounge .range-value { color: var(--text); }

.range-aside {
    margin-top: 0.9rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.1rem;
    font-size: 0.8rem;
    color: var(--muted);
}

.range-aside strong,
.calc-assume strong,
.calc-payback strong { color: var(--accent); font-weight: 600; }

.capital-picker {
    margin-top: 1.25rem;
    padding-top: 1.1rem;
    border-top: 1px solid rgba(108, 86, 54, 0.55);
}

.capital-picker > p {
    margin: 0 0 0.7rem;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text);
}

.capital-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-bottom: 0.85rem;
}

.capital-chip {
    appearance: none;
    -webkit-appearance: none;
    font: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    border: 1px solid rgba(108, 86, 54, 0.8);
    background: rgba(9, 9, 7, 0.45);
    color: var(--muted);
    cursor: pointer;
    transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.capital-chip:hover,
.capital-chip:focus-visible {
    color: var(--text);
    border-color: rgba(185, 157, 115, 0.75);
    background: rgba(185, 157, 115, 0.12);
    outline: none;
}

.capital-chip[aria-pressed="true"] {
    color: var(--ink);
    background: var(--accent);
    border-color: var(--accent);
}

.capital-panel,
.calc-result {
    padding: 0.95rem 1.05rem;
    border-radius: 10px;
    border: 1px solid rgba(108, 86, 54, 0.75);
    background: rgba(108, 86, 54, 0.2);
}

.capital-panel h4 {
    font-family: var(--serif);
    font-size: 1.2rem;
    font-weight: 400;
    margin: 0 0 0.25rem;
    color: var(--text);
}

.capital-band {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 0.2rem;
    font-variant-numeric: tabular-nums;
}

.capital-compare {
    font-size: 0.84rem;
    color: var(--muted);
    margin-bottom: 0.7rem;
}

.capital-panel ul {
    margin: 0 0 0 1.1rem;
    padding: 0;
    max-width: none;
}

.capital-panel li {
    margin-bottom: 0.4rem;
    font-size: 0.88rem;
    color: var(--text);
}

.range-row.is-active .range-track {
    border-color: rgba(185, 157, 115, 0.7);
    box-shadow: 0 0 0 1px rgba(185, 157, 115, 0.28);
}

.stack-chart { display: flex; flex-direction: column; gap: 0.55rem; }

.stack-row {
    display: grid;
    grid-template-columns: minmax(8rem, 11rem) 1fr minmax(5.5rem, 7rem);
    gap: 0.4rem 0.7rem;
    align-items: center;
}

.stack-name { font-size: 0.84rem; color: var(--text); }

.stack-bar-wrap {
    height: 0.85rem;
    background: rgba(0, 0, 0, 0.35);
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid rgba(108, 86, 54, 0.55);
}

.stack-bar {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--earth), var(--accent));
    transform-origin: left center;
}

.stack-amt {
    font-size: 0.78rem;
    color: var(--muted);
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.9rem;
    margin: 1.5rem 0 1.85rem;
}

.compare-card {
    padding: 1.15rem 1.2rem 1.25rem;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    background: rgba(9, 9, 7, 0.32);
}

.compare-card h3 {
    margin: 0 0 0.85rem;
    font-size: 1.25rem;
    color: var(--accent);
}

.compare-card dl { display: grid; gap: 0.7rem; margin: 0; }

.compare-card dt {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.15rem;
}

.compare-card dd {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.4;
}

.calc-assume {
    color: var(--text);
    font-size: 0.9rem;
    margin: 0 0 1rem;
    line-height: 1.45;
    padding: 0.7rem 0.85rem;
    border-radius: 8px;
    border: 1px dashed rgba(185, 157, 115, 0.45);
    background: rgba(9, 9, 7, 0.35);
}

.calc-controls {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.95rem;
    max-width: 36rem;
}

.calc-field label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.75rem;
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.calc-field label output {
    font-weight: 600;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
}

.calc-field input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
    height: 0.45rem;
}

.calc-field input[type="number"] {
    width: 100%;
    max-width: 10rem;
    padding: 0.5rem 0.65rem;
    border-radius: 4px;
    border: 1px solid rgba(108, 86, 54, 0.85);
    background: rgba(9, 9, 7, 0.65);
    color: var(--text);
    font: inherit;
    font-variant-numeric: tabular-nums;
}

.calc-price-field {
    padding: 0.9rem 0.95rem 1rem;
    border-radius: 10px;
    border: 1px solid rgba(185, 157, 115, 0.55);
    background: rgba(185, 157, 115, 0.08);
    margin-bottom: 0.15rem;
}

.calc-price-field > label {
    font-size: 1.02rem;
    margin-bottom: 0.55rem;
}

.calc-price-field .price-row {
    display: grid;
    grid-template-columns: minmax(5.5rem, 7.5rem) 1fr;
    gap: 0.75rem 1rem;
    align-items: center;
}

.calc-price-field input[type="number"] {
    max-width: none;
    width: 100%;
    font-size: 1.35rem;
    font-weight: 600;
    padding: 0.55rem 0.7rem;
    border-color: rgba(185, 157, 115, 0.65);
    color: var(--accent);
}

.calc-price-field input[type="range"] { height: 0.55rem; }

.calc-result .calc-subline,
.calc-payback {
    display: block;
    font-size: 0.84rem;
    color: var(--muted);
    margin-top: 0.2rem;
    line-height: 1.4;
}

.calc-lead {
    max-width: 40rem;
    margin: 0.35rem 0 0.85rem;
    font-size: 1.05rem;
    color: var(--text);
}

.calc-capital-label {
    font-size: 0.88rem;
    font-weight: 600;
    margin: 0.15rem 0 0.45rem;
    color: var(--text);
}

.calc-result { margin-top: 0; }

.calc-result.is-warn {
    border-color: rgba(176, 112, 78, 0.7);
    background: rgba(92, 48, 32, 0.35);
}

.calc-result strong {
    display: block;
    font-size: 1.55rem;
    font-family: var(--serif);
    font-weight: 400;
    color: var(--text);
    margin-bottom: 0.2rem;
    letter-spacing: -0.02em;
}

.calc-result span {
    font-size: 0.84rem;
    color: var(--muted);
}

.calc-result-stack {
    display: grid;
    gap: 0.65rem;
    margin-top: 1.15rem;
}

.calc-result.secondary {
    border-color: rgba(185, 157, 115, 0.35);
    background: rgba(9, 9, 7, 0.28);
}

.calc-result.secondary strong { font-size: 1.25rem; }
.calc-result.total strong { font-size: 1.7rem; color: var(--accent); }

.calc-note {
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--muted);
    line-height: 1.4;
}

.licence-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    margin: 0.5rem 0 0.25rem;
}

.licence-table th,
.licence-table td {
    text-align: left;
    padding: 0.55rem 0.4rem;
    border-bottom: 1px solid rgba(108, 86, 54, 0.45);
    vertical-align: top;
}

.licence-table th {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.licence-table td:last-child,
.licence-table th:last-child {
    text-align: right;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.licence-table tfoot td {
    border-bottom: 0;
    padding-top: 0.75rem;
    font-weight: 600;
    color: var(--accent);
}

.sources {
    margin-top: 2.25rem;
    padding-top: 1.15rem;
    border-top: 1px solid rgba(200, 92, 48, 0.55);
}

.sources h2 { margin-top: 0; }
.sources p, .sources li { color: var(--muted); font-size: 0.9rem; }
.sources ul { margin-left: 1.2rem; }

.try-calc-wrap { margin: 1.75rem 0 2rem; max-width: 40rem; }

@media (max-width: 900px) {
    .bento { grid-template-columns: 1fr; }
    .span-1, .span-2, .span-3 { grid-column: span 1; }
    .notes-grid { grid-template-columns: 1fr; }
    .wrap { padding: 0 1.05rem; }
    .nav {
        flex-direction: column;
        align-items: stretch;
        gap: 0.35rem;
        padding: 0.75rem 0.7rem 0.6rem;
    }
    .logo { padding: 0.15rem 0.3rem 0.15rem; }
    .nav-links a {
        letter-spacing: 0.08em;
        padding: 0.4rem 0.5rem;
        font-size: 0.7rem;
    }
    .hero-cell,
    .photo-cell,
    .page-hero,
    .article-card,
    #contact.glass {
        box-shadow:
            inset 0 1px 0 rgba(244, 239, 230, 0.07),
            0 1px 2px rgba(0, 0, 0, 0.4),
            0 8px 14px 0 rgba(28, 23, 17, 0.9),
            0 8px 14px 1px rgba(108, 86, 54, 0.45),
            0 22px 36px -16px rgba(0, 0, 0, 0.75);
    }
    .hero-cell {
        box-shadow:
            inset 0 1px 0 rgba(244, 239, 230, 0.07),
            0 1px 2px rgba(0, 0, 0, 0.4),
            0 8px 14px 0 rgba(28, 23, 17, 0.9),
            0 8px 14px 1px rgba(108, 86, 54, 0.45),
            0 -28px 56px -16px rgba(200, 92, 48, 0.42),
            0 22px 36px -16px rgba(0, 0, 0, 0.75);
    }
    .photo-cell img { max-height: 420px; min-height: 240px; }
    .hero-cell h1 { max-width: 12ch; }
    .article-card { padding: 1.4rem 1.2rem 1.55rem; }
    .page-main { padding: 0.2rem 0 2.5rem; }
    .with-diagram { display: block; margin-top: 2.1rem; }
    .with-diagram > h2 { margin-bottom: 0.8rem; }
    .with-diagram > figure {
        position: static;
        max-width: 22rem;
        margin: 0.35rem 0 1.35rem;
    }
}

@media (max-width: 640px) {
    .calc-price-field .price-row {
        grid-template-columns: 1fr;
        gap: 0.55rem;
    }
    .range-row,
    .stack-row { grid-template-columns: 1fr; gap: 0.3rem; }
    .range-fill.licence .range-value {
        left: 0.45rem;
        color: var(--ink);
    }
    .range-fill.licence { width: 18%; }
    .compare-grid { grid-template-columns: 1fr; }
    .stack-amt { text-align: left; }
    .hero-cell h1 { font-size: clamp(2.7rem, 13vw, 3.5rem); }
    .page-hero h1,
    .article-title { font-size: clamp(2.15rem, 10.5vw, 2.85rem); }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation: none !important;
        transition: none !important;
    }
    .hero-cell,
    .hero-cell:hover,
    .photo-cell img,
    .bento > .glass.span-1:hover,
    .note-card:hover,
    .post-card:hover,
    .topics-strip a:hover,
    .btn:hover,
    .try-calc-btn:hover {
        transform: none !important;
    }
}