/* KMPL Diary website. Same "Instrument" look as the apps (app/lib/core/theme.dart): graphite / light-steel panels,
   amber for actions and warnings, teal for readouts. No red anywhere. */

@font-face { font-family: "Chakra Petch"; src: url("fonts/ChakraPetch-SemiBold.ttf") format("truetype"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Chakra Petch"; src: url("fonts/ChakraPetch-Bold.ttf") format("truetype"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("fonts/Barlow-Regular.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("fonts/Barlow-Medium.ttf") format("truetype"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("fonts/Barlow-SemiBold.ttf") format("truetype"); font-weight: 600; font-display: swap; }

:root {
  color-scheme: light;
  --bg: #ECEEF0; --panel: #FFFFFF; --panel2: #E2E5E8; --line: #D6DADE; --dim: #D3D7DB; --lcd: #F4F6F7;
  --ink: #15191D; --muted: #5C646C; --amber: #C77D00; --on-amber: #1D1406; --teal: #0F8F84;
  --frame: #15191D; --shadow: 0 24px 50px -28px rgba(21, 25, 29, .45);
  --display: "Chakra Petch", "Barlow", system-ui, sans-serif;
  --body: "Barlow", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --ease: cubic-bezier(.2, 0, 0, 1);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0F1113; --panel: #181B1F; --panel2: #20252A; --line: #2A2F35; --dim: #353B42; --lcd: #0A0C0D;
    --ink: #E7EBEE; --muted: #8A939C; --amber: #FFB547; --teal: #2EC4B6;
    --frame: #2A2F35; --shadow: 0 24px 50px -28px rgba(0, 0, 0, .85);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0F1113; --panel: #181B1F; --panel2: #20252A; --line: #2A2F35; --dim: #353B42; --lcd: #0A0C0D;
  --ink: #E7EBEE; --muted: #8A939C; --amber: #FFB547; --teal: #2EC4B6;
  --frame: #2A2F35; --shadow: 0 24px 50px -28px rgba(0, 0, 0, .85);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 var(--body); padding-inline: 20px;
  /* Footer stays at the bottom of the screen on short pages. */
  min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; }
main { flex: 1 0 auto; }
h1, h2, h3 { font-family: var(--display); line-height: 1.12; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(34px, 5.4vw, 58px); font-weight: 700; letter-spacing: -.01em; }
h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 700; }
h3 { font-size: 18px; font-weight: 600; }
p { margin: 0; }
a { color: var(--teal); }
img { max-width: 100%; display: block; }
.wrap { width: 100%; max-width: 1160px; margin-inline: auto; }
.hud { font-family: var(--display); font-weight: 600; text-transform: uppercase; letter-spacing: .14em; }
.eyebrow { color: var(--teal); font-size: 13px; margin-bottom: 10px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: 12px; top: -60px; background: var(--amber); color: var(--on-amber); padding: 8px 12px; border-radius: 8px; z-index: 20; }
.skip:focus { top: 12px; }

/* Buttons: same shapes as the app */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 22px; border-radius: 12px;
  font-family: var(--display); font-weight: 700; font-size: 14px; letter-spacing: .12em; text-transform: uppercase; text-decoration: none;
  border: 1px solid transparent; transition: transform .16s var(--ease), box-shadow .16s var(--ease), background .16s; }
.btn.amber { background: var(--amber); color: var(--on-amber); box-shadow: 0 10px 22px -14px var(--amber); }
.btn.amber:hover { transform: translateY(-2px); box-shadow: 0 14px 26px -12px var(--amber); }
.btn.line { background: var(--panel); color: var(--ink); border-color: var(--line); }
.btn.line:hover { border-color: var(--ink); }
.btn.sm { min-height: 38px; padding: 0 14px; font-size: 12px; border-radius: 10px; }
.btn:active { transform: scale(.97); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; }

/* Top bar */
.nav { position: sticky; top: 0; z-index: 10; margin-inline: -20px; padding: calc(env(safe-area-inset-top, 0px)) 20px 0;
  background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-in { display: flex; align-items: center; gap: 16px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; white-space: nowrap; color: var(--amber); text-decoration: none; font-size: 14px; }
.logo { width: 30px; height: 30px; border-radius: 8px; background: var(--amber); display: grid; place-items: center; flex: none; }
.logo svg { width: 17px; height: 17px; fill: var(--on-amber); }
.links { margin-left: auto; display: flex; align-items: center; gap: 22px; font-size: 15px; }
.links a { white-space: nowrap; }
.links a:not(.btn) { color: var(--muted); text-decoration: none; }
.links a:not(.btn):hover { color: var(--ink); }

/* Hero */
.hero { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding-block: 64px 56px; }
.lead { color: var(--muted); font-size: 19px; margin-top: 18px; max-width: 48ch; }
.ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.fine { list-style: none; padding: 0; margin: 18px 0 0; display: flex; gap: 8px 20px; flex-wrap: wrap; color: var(--muted); font-size: 15px; }
.fine li::before { content: "✓ "; color: var(--teal); font-weight: 700; }
/* "Use it now on the web · apps coming soon" line under the hero buttons. */
.soon { display: flex; align-items: flex-start; gap: 10px; margin: 18px 0 0; padding: 10px 14px; max-width: 34rem;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px; font-size: 15px; line-height: 1.45; color: var(--ink); }
.soon b { font-weight: 600; }
.soon .dot { flex: none; width: 8px; height: 8px; margin-top: 7px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px color-mix(in srgb, var(--teal) 20%, transparent); }
.hero-art { display: grid; justify-items: center; gap: 10px; }
.phone { width: min(300px, 78vw); border-radius: 44px; background: var(--frame); padding: 10px; box-shadow: var(--shadow); }
.phone-status { display: flex; justify-content: space-between; align-items: center; padding: 10px 22px 6px; background: var(--bg);
  border-radius: 34px 34px 0 0; font: 600 12px var(--body); color: var(--ink); }
.phone-status i { width: 22px; height: 10px; border-radius: 3px; background: var(--ink); opacity: .75; }
.shot { width: 100%; height: auto; border-radius: 0 0 34px 34px; }
.shot-dark { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .shot-light { display: none; }
  :root:not([data-theme="light"]) .shot-dark { display: block; }
}
:root[data-theme="dark"] .shot-light { display: none; }
:root[data-theme="dark"] .shot-dark { display: block; }
.art-note { font-size: 13px; color: var(--muted); }

/* Sections */
.sec { padding-block: 64px; border-top: 1px solid var(--line); }
.sec h2 { max-width: 24ch; }
.steps { list-style: none; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps li { padding: 22px; display: grid; gap: 8px; align-content: start; }
.steps .n { color: var(--amber); font-size: 13px; }
.steps p, .feats p { color: var(--muted); font-size: 16px; }

.feats { list-style: none; padding: 0; margin: 32px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px 32px; }
.feats li { display: grid; gap: 6px; align-content: start; }
.feats li.wide { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: 24px; }
.ic { width: 42px; height: 42px; border-radius: 11px; background: color-mix(in srgb, var(--teal) 14%, transparent); color: var(--teal);
  display: grid; place-items: center; font-size: 13px; letter-spacing: .06em; margin-bottom: 6px; }

/* Calculator */
.calc-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
.calc-copy { display: grid; gap: 14px; }
.calc { padding: 22px; display: grid; gap: 18px; }
.calc-inputs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.calc label { display: grid; gap: 6px; align-content: start; font-family: var(--display); font-weight: 600; font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--teal); }
.calc input { width: 100%; min-width: 0; background: var(--lcd); color: var(--ink); border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 12px; font: 700 20px var(--display); font-variant-numeric: tabular-nums; }
.calc input:focus { outline: none; border-color: var(--amber); box-shadow: 0 0 0 1px var(--amber); }
.calc-out { display: grid; grid-template-columns: 1.1fr 1fr; gap: 20px; align-items: center; }
.facts { margin: 0; display: grid; gap: 10px; }
.facts div { display: flex; justify-content: space-between; gap: 10px; border-bottom: 1px dashed var(--line); padding-bottom: 8px; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; font: 700 18px var(--display); font-variant-numeric: tabular-nums; }
.warn { color: var(--amber); font-size: 15px; min-height: 1.3em; }
.calc-cta { display: grid; gap: 10px; justify-items: start; }

.gauge { width: 100%; display: block; }
.gauge .track { stroke: var(--dim); }
.gauge .val { stroke: var(--teal); stroke-dasharray: 100; stroke-dashoffset: 100; transition: stroke-dashoffset .9s var(--ease); }
.gauge .needle { stroke: var(--amber); transform-box: view-box; transform-origin: 100px 100px; transform: rotate(180deg); transition: transform .9s var(--ease); }
.gauge text { font-family: var(--display); fill: var(--muted); font-size: 9px; font-weight: 600; }
.gauge .big { fill: var(--ink); font-size: 32px; font-weight: 700; }
.gauge .unit { fill: var(--amber); font-size: 9px; letter-spacing: .14em; }

/* Why it's accurate */
.why { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: center; }
.why p { margin-top: 14px; max-width: 58ch; }
.tankline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.tl { padding: 14px; display: grid; gap: 4px; align-content: start; }
.tl .hud { color: var(--muted); font-size: 11px; }
.tl b { font: 700 22px var(--display); font-variant-numeric: tabular-nums; }
.tl.res { border-color: var(--teal); }
.tl.res b { color: var(--teal); }

/* FAQ */
.faq { display: grid; gap: 12px; }
.faq > * { max-width: 820px; }
.faq h2 { margin-bottom: 12px; }
.faq details { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 18px; }
.faq details p { color: var(--muted); margin-top: 8px; }

.final { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding: 28px 30px; }
.final .ctas { margin-top: 0; }
.final p { margin-top: 6px; }

/* Footer */
.foot { border-top: 1px solid var(--line); padding-block: 28px calc(28px + env(safe-area-inset-bottom, 0px));
  margin-inline: -20px; padding-inline: 20px; } /* line runs edge to edge, like the top bar */
.foot-in { display: flex; align-items: center; gap: 16px 24px; flex-wrap: wrap; }
.badges { display: flex; gap: 10px; flex-wrap: wrap; }
.badge { border: 1px solid var(--line); border-radius: 10px; padding: 7px 14px; background: var(--panel); display: grid; line-height: 1.2; color: var(--muted); text-decoration: none; }
.badge small { font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.badge b { font: 700 14px var(--display); color: var(--ink); }
a.badge:hover { border-color: var(--teal); }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--panel); margin-left: auto; }
.seg button { border: 0; background: transparent; color: var(--muted); padding: 8px 12px; font-size: 11px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: color-mix(in srgb, var(--amber) 16%, transparent); color: var(--amber); }
.copy { width: 100%; }
.made-in { margin-bottom: -10px; font-weight: 500; }

/* Motion: one calm entrance for the hero; off with Reduce Motion or the app's Animations switch. */
.rise { animation: rise .6s var(--ease) both; }
.rise.d2 { animation-delay: .12s; }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }
/* Pricing: Free vs Plus */
.lead-sm { max-width: 640px; margin-top: 10px; }
.plus-tag { display: inline-block; vertical-align: middle; font-size: 10px; letter-spacing: .12em; padding: 2px 6px; border-radius: 5px;
  background: var(--amber); color: var(--on-amber); margin-left: 6px; }
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 28px; max-width: 900px; }
.plan { padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.plan .btn { margin-top: auto; }
.plan-plus { border: 2px solid var(--amber); background: color-mix(in srgb, var(--amber) 6%, var(--panel)); }
.plan-name { font-size: 14px; letter-spacing: .16em; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.plan-plus .plan-name { color: var(--amber); }
.plan-badge { font-size: 10px; padding: 3px 7px; border-radius: 6px; background: var(--teal); color: #fff; letter-spacing: .1em; }
.plan-price { display: flex; align-items: baseline; gap: 8px; }
.plan-price b { font-family: var(--display); font-size: 40px; line-height: 1; }
.plan-alt { margin-top: -4px; color: var(--muted); }
.ticks { list-style: none; padding: 0; margin: 6px 0 14px; display: grid; gap: 8px; }
.ticks li { padding-left: 24px; position: relative; }
.ticks li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 700; }
.ticks li:first-child b { color: var(--ink); }
.plan-plus .ticks li:first-child::before { content: ""; }
.plan-plus .ticks li:first-child { padding-left: 0; }
.compare { margin-top: 20px; max-width: 900px; padding: 14px 18px; }
.compare summary { cursor: pointer; font-weight: 600; }
.table-scroll { overflow-x: auto; margin-top: 12px; }
.compare table { width: 100%; border-collapse: collapse; min-width: 420px; }
.compare th, .compare td { text-align: left; padding: 10px 8px; border-top: 1px solid var(--line); font-size: 15px; }
.compare thead th { border-top: 0; font-family: var(--display); font-size: 12px; letter-spacing: .14em; color: var(--muted); }
.compare td { text-align: center; color: var(--muted); }
.compare td:last-child { color: var(--ink); font-weight: 600; }
.compare thead th:nth-child(n+2) { text-align: center; }
.plan-fine { margin-top: 14px; max-width: 900px; }
.foot a { color: inherit; }
@media (max-width: 720px) { .plans { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rise { animation: none; }
  .gauge .val, .gauge .needle, .btn { transition: none; }
}
.no-motion .rise { animation: none; }
.no-motion .gauge .val, .no-motion .gauge .needle, .no-motion .btn { transition: none; }

/* Narrow screens (most visitors are on phones) */
@media (max-width: 900px) {
  .hero, .calc-grid, .why { grid-template-columns: 1fr; }
  .hero { padding-block: 40px 44px; gap: 36px; }
  .steps, .feats { grid-template-columns: 1fr 1fr; }
  .calc-inputs { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .hide-sm { display: none; }
  .links { gap: 14px; }
  .steps, .feats, .tankline { grid-template-columns: 1fr; }
  .calc-out { grid-template-columns: 1fr; }
  .sec { padding-block: 48px; }
  .ctas .btn { flex: 1 1 100%; }
  .seg { margin-left: 0; }
}
/* Small phones: keep the top bar on one line */
@media (max-width: 400px) {
  .nav-in { gap: 10px; }
  .brand { gap: 8px; font-size: 13px; }
  .links { gap: 12px; font-size: 14px; }
  .links .btn.sm { padding: 0 11px; }
}
/* Very small phones: the logo alone, so Log in and Get started still fit */
@media (max-width: 350px) {
  .brand-name { display: none; }
}

/* Calculator and guide pages (built by tool/build.py) */
.crumbs { font-size: 14px; color: var(--muted); padding-top: 20px; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs a { color: var(--muted); }
.hero-sm { padding-block: 28px 56px; }
.hero-sm h1, .sec-top h1 { font-size: clamp(32px, 4.6vw, 48px); }
.sec-top { padding-block: 28px 56px; }
/* Reading pages (guides, policy pages): text is kept to a readable width but starts at the same left edge as the
   logo and the footer. */
.prose > *, .doc > * { max-width: 760px; }
.prose h2 { font-size: clamp(22px, 2.6vw, 28px); margin-top: 36px; }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { margin-top: 12px; line-height: 1.65; }
.prose li { margin-top: 8px; }
.prose ol, .prose ul { padding-left: 22px; margin: 12px 0 0; }
.prose .lead { margin-top: 16px; }
.prose > .muted.small { margin-top: 10px; }
.example { padding: 18px 20px; margin-top: 18px; display: grid; gap: 6px; border-left: 3px solid var(--teal); }
.example p { margin: 0; }
.example .hud { color: var(--teal); font-size: 12px; }
.guide-list { list-style: none; padding: 0; margin: 28px 0 20px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 980px; }
.guide-list a { display: grid; gap: 8px; padding: 22px; color: inherit; text-decoration: none; height: 100%; }
.guide-list h2 { font-size: 21px; }
.guide-list p { color: var(--muted); }
.guide-list li:hover { border-color: var(--teal); }
.sheet { width: 100%; border-collapse: collapse; min-width: 460px; margin-top: 14px; font-variant-numeric: tabular-nums; }
.sheet th, .sheet td { text-align: left; padding: 10px 8px; border-top: 1px solid var(--line); font-size: 15px; font-weight: 400; }
.sheet thead th { border-top: 0; font-family: var(--display); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.sheet td { text-align: right; white-space: nowrap; }
.sheet thead th:nth-child(n+2) { text-align: right; }
.sheet tfoot th, .sheet tfoot td { font-weight: 700; border-top: 2px solid var(--ink); }
.foot-links { width: 100%; display: flex; flex-wrap: wrap; gap: 8px 20px; }
.foot-links a { color: var(--muted); }

/* Fuel cost calculator */
.calc-inputs.three { grid-template-columns: repeat(3, 1fr); }
.calc-row { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; font-size: 15px; color: var(--muted); }
.calc .check { display: flex; align-items: center; gap: 8px; font: inherit; letter-spacing: 0; text-transform: none; color: inherit; }
.calc .check input { width: 20px; height: 20px; accent-color: var(--amber); }
.calc .people { display: flex; align-items: center; gap: 8px; font: inherit; letter-spacing: 0; text-transform: none; color: inherit; }
.calc .people input { width: 64px; padding: 6px 8px; font-size: 17px; text-align: center; }
.cost-out { display: grid; grid-template-columns: 1fr 1.2fr; gap: 20px; align-items: center; }
.cost-big { background: var(--lcd); border: 1px solid var(--line); border-radius: 14px; padding: 18px; display: grid; gap: 4px; }
.cost-big .hud { font-size: 11px; color: var(--amber); }
.cost-big b { font: 700 clamp(30px, 5vw, 40px) var(--display); font-variant-numeric: tabular-nums; }
@media (max-width: 900px) {
  .guide-list { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .calc-inputs.three { grid-template-columns: 1fr 1fr; }
  .calc-inputs.three label:last-child { grid-column: 1 / -1; }
  .cost-out { grid-template-columns: 1fr; }
}