/* Alexandria. Chart-plate styling, system fonts only, no external requests. */
:root {
  color-scheme: light dark;
  --paper: #EBF1F3; --sheet: #FAFCFC; --ink: #0F2438; --ink2: #44586A; --rule: #AFC1CC;
  --shoal: #D4E5ED; --deep: #BCD6E3; --land: #E8DDBB; --contour: #6F8DA2;
  --accent: #A3236C; --on-accent: #FFFFFF; --accent-soft: #F3DEEA;
  --feat-bg: #0F2438; --feat-ink: #E6EEF3; --feat-ink2: #AFC2D0; --feat-accent: #F08CC3; --feat-on-accent: #1A0712;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #08131D; --sheet: #0E1D2A; --ink: #DCE7EE; --ink2: #9DB0BE; --rule: #2A4357;
    --shoal: #0F2536; --deep: #14354C; --land: #2E2A1B; --contour: #3F6580;
    --accent: #EE7DBB; --on-accent: #1A0712; --accent-soft: #3A1830;
    --feat-bg: #DCE7EE; --feat-ink: #0F2438; --feat-ink2: #3A4F61; --feat-accent: #A3236C; --feat-on-accent: #FFFFFF;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 16px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 1.0625rem/1.65 var(--serif); }
img, svg { max-width: 100%; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 16px; top: -64px; background: var(--ink); color: var(--paper); padding: 8px 14px; z-index: 10; }
.skip:focus { top: 12px; }
.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }

h1, h2, h3 { font-family: var(--serif); line-height: 1.12; margin: 0; letter-spacing: -0.01em; text-wrap: balance; }
h2 { font-size: clamp(1.9rem, 4.5vw, 2.75rem); font-weight: 650; }
h3 { font-size: 1.25rem; font-weight: 650; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }

/* Scale-bar divider, like the graduated border of a chart */
.scale { height: 9px; border: 1px solid var(--ink); background: repeating-linear-gradient(90deg, var(--ink) 0 22px, transparent 22px 44px); }
section { padding: 72px 0; }
section > .wrap > h2 { margin-bottom: 28px; }
.lede { color: var(--ink2); max-width: 62ch; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 10px 22px; font: 600 1rem/1.2 var(--sans); text-decoration: none; border: 2px solid var(--accent); border-radius: 3px; cursor: pointer; transition: background-color .15s, color .15s; text-align: center; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: transparent; color: var(--accent); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--accent); }
.btn-ghost:hover { background: var(--accent-soft); text-decoration: none; }

/* Hero */
.masthead { padding: 18px 0; border-bottom: 1px solid var(--rule); }
.wordmark { font: italic 650 1.4rem/1 var(--serif); color: var(--ink); text-decoration: none; }
.hero { padding: 56px 0 72px; }
.hero-grid { display: grid; gap: 40px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 12px; font: italic 1.15rem/1 var(--serif); color: var(--accent); margin: 0 0 20px; }
.eyebrow::before { content: ""; width: 36px; height: 2px; background: var(--accent); }
.hero h1 { font-size: clamp(2.9rem, 8.5vw, 5.6rem); font-weight: 700; letter-spacing: -0.025em; line-height: 1; margin-bottom: 26px; }
.hero .sub { font-size: 1.15rem; max-width: 56ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 22px; }
.status { font: .95rem/1.5 var(--sans); color: var(--ink2); max-width: 52ch; border-left: 3px solid var(--rule); padding-left: 14px; margin: 0; }
.plate { margin: 0; }
.plate svg { width: 100%; height: auto; display: block; border: 2px solid var(--ink); background: var(--shoal); }
.plate figcaption { font: .85rem/1.4 var(--sans); color: var(--ink2); margin-top: 8px; }
.pl-deep { fill: var(--deep); } .pl-land { fill: var(--land); stroke: var(--contour); stroke-width: 1; }
.pl-line { fill: none; stroke: var(--contour); stroke-width: 1.2; }
.pl-ink { stroke: var(--ink); fill: none; stroke-width: 2; } .pl-ink-fill { fill: var(--sheet); stroke: var(--ink); stroke-width: 2.5; }
.pl-acc { stroke: var(--accent); fill: none; stroke-width: 2.5; stroke-linecap: round; } .pl-acc-fill { fill: var(--accent); }
.pl-txt { font: 11px var(--mono); fill: var(--contour); }
.pl-tick { stroke: var(--ink); stroke-width: 1.5; }

/* How it works */
.steps { border-top: 2px solid var(--ink); counter-reset: step; }
.steps li { display: grid; grid-template-columns: 3.2rem 1fr; gap: 4px 16px; padding: 22px 0; border-bottom: 1px solid var(--rule); counter-increment: step; }
.steps li::before { content: counter(step); grid-row: span 2; font: 700 2.6rem/1 var(--serif); color: var(--accent); }
.steps h3 { align-self: end; }
.steps p { margin: 0; color: var(--ink2); max-width: 60ch; }

/* What's inside */
.alt { background: var(--sheet); border-block: 1px solid var(--rule); }
.index { display: grid; gap: 32px; margin-top: 8px; }
.index h3 { padding-bottom: 8px; border-bottom: 2px solid var(--ink); margin-bottom: 10px; }
.index li { padding: 7px 0 7px 18px; position: relative; border-bottom: 1px dotted var(--rule); }
.index li::before { content: ""; position: absolute; left: 2px; top: 1.15em; width: 7px; height: 7px; border: 1.5px solid var(--accent); transform: rotate(45deg); }
.note { font: .95rem/1.5 var(--sans); color: var(--ink2); margin-top: 10px; }
.extras { display: grid; gap: 20px; margin-top: 44px; }
.extra { background: var(--land); color: var(--ink); padding: 22px 24px; border: 1px solid var(--contour); border-radius: 3px; }
.extra h3 { margin-bottom: 8px; }
.extra p { margin: 0; }
@media (prefers-color-scheme: light) { .extra { color: #1d2a33; } }

/* Offline */
.offline .grid { display: grid; gap: 4px; }
.offline p { max-width: 64ch; }
.offline p:first-child { font-size: 1.25rem; }

/* Models */
.models-grid { display: grid; gap: 20px; margin-top: 32px; }
.model { background: var(--sheet); border: 2px solid var(--ink); padding: 26px 24px 28px; display: flex; flex-direction: column; border-radius: 3px; }
.model h3 { font-size: 1.5rem; }
.price { font: 700 2.4rem/1 var(--mono); margin: 14px 0 18px; letter-spacing: -0.03em; }
.model ul { flex: 1; margin-bottom: 24px; }
.model li { padding: 8px 0; border-top: 1px dotted var(--rule); font-size: 1rem; }
.model .btn { align-self: flex-start; }
.model.feature { background: var(--feat-bg); color: var(--feat-ink); }
.model.feature li { border-color: var(--feat-ink2); }
.model.feature .btn { background: var(--feat-accent); border-color: var(--feat-accent); color: var(--feat-on-accent); }
.model.feature .btn:hover { background: transparent; color: var(--feat-accent); }
.model.feature :focus-visible { outline-color: var(--feat-accent); }
.fine { font: .95rem/1.55 var(--sans); color: var(--ink2); margin-top: 28px; max-width: 78ch; }

/* Built by */
.founder { font-size: 1.3rem; line-height: 1.6; max-width: 58ch; margin: 0 0 18px; }
.sig { font: italic 1.4rem var(--serif); color: var(--accent); margin: 0; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--rule); max-width: 78ch; }
.faq details:first-of-type { border-top: 2px solid var(--ink); }
.faq summary { cursor: pointer; padding: 18px 36px 18px 0; font: 650 1.15rem/1.35 var(--serif); list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font: 400 1.7rem/1 var(--sans); color: var(--accent); }
.faq details[open] summary::after { content: "\2212"; }
.faq details > div { padding: 0 0 18px; }
.faq details p { margin: 0; max-width: 66ch; }

/* Sign-up */
.signup { background: var(--feat-bg); color: var(--feat-ink); }
.signup a { color: var(--feat-accent); }
.signup .lede { color: var(--feat-ink2); }
.signup-form { display: grid; gap: 14px; max-width: 560px; margin-top: 24px; }
.signup-form label { font: 600 .95rem var(--sans); display: block; margin-bottom: 4px; }
.signup-form input[type=email], .signup-form select { width: 100%; min-height: 50px; padding: 10px 14px; font: 1rem var(--sans); color: #0F2438; background: #FAFCFC; border: 2px solid var(--feat-ink2); border-radius: 3px; }
.signup-form :focus-visible, .signup :focus-visible { outline: 3px solid var(--feat-accent); outline-offset: 2px; }
.signup-form .btn { background: var(--feat-accent); border-color: var(--feat-accent); color: var(--feat-on-accent); justify-self: start; }
.signup-form .btn:hover { background: transparent; color: var(--feat-accent); }
.signup-form .btn:disabled { opacity: .6; cursor: wait; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.small { font: .95rem var(--sans); margin: 0; }
#signup-status { min-height: 1.6em; font: 600 1rem var(--sans); margin: 14px 0 0; }
#signup-status[data-kind=error] { color: #FFB4A8; }
@media (prefers-color-scheme: dark) { #signup-status[data-kind=error] { color: #9B1C0C; } }

/* Footer */
.site-foot { padding: 44px 0 56px; font: .95rem/1.6 var(--sans); color: var(--ink2); }
.site-foot p { max-width: 80ch; margin: 0 0 12px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 6px 0; margin: 20px 0; }
.foot-links li + li::before { content: "\00b7"; margin: 0 12px; color: var(--ink2); }
.foot-links a { color: var(--ink); font-weight: 600; }

/* Text pages */
.doc { padding: 48px 0 72px; }
.doc h1 { font-size: clamp(2.2rem, 6vw, 3.4rem); margin-bottom: 24px; }
.doc h2 { font-size: 1.5rem; margin: 32px 0 8px; }
.doc p { max-width: 66ch; }
.draft { display: inline-block; font: 700 .95rem var(--sans); background: var(--accent-soft); color: var(--accent); border: 2px solid var(--accent); padding: 6px 12px; margin: 0 0 20px; }
.center-page { min-height: 60vh; display: grid; align-content: center; padding: 56px 0; }

@media (min-width: 760px) {
  .index { grid-template-columns: 1fr 1fr; gap: 36px 48px; }
  .extras { grid-template-columns: 1fr 1fr; }
  .models-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 940px) {
  .hero-grid { grid-template-columns: 1.15fr .85fr; gap: 56px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}