/*
 * The landing page of Reestr. The look is a page of the ledger book the app replaces: blue-black
 * ink on ruled paper, a red margin line down the left, one blue accent for actions. Colors come
 * from the app (ui/src/theme/tokens.css); text/background pairs are at least 4.5:1.
 */
@font-face {
  font-family: "PT Serif";
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/pt-serif-cyrillic-700-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "PT Serif";
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/pt-serif-latin-700-normal.woff2") format("woff2");
  unicode-range:
    U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC,
    U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "PT Sans";
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/pt-sans-cyrillic-400-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "PT Sans";
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/pt-sans-latin-400-normal.woff2") format("woff2");
  unicode-range:
    U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC,
    U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "PT Sans";
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/pt-sans-cyrillic-700-normal.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "PT Sans";
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/pt-sans-latin-700-normal.woff2") format("woff2");
  unicode-range:
    U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC,
    U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  color-scheme: light dark;
  --paper: #f7f9f7;
  --sheet: #ffffff;
  --band: #ecf1ed;
  --ruling: #d3dcd5;
  --ruling-strong: #7d9184;
  --margin-red: #d98a8a;
  --ink: #1d2b45;
  --ink-muted: #4a586d;
  --accent: #2346b0;
  --accent-strong: #1b3a96;
  --accent-wash: #e3e9f8;
  --on-accent: #ffffff;
  --warn: #8a4500;
  --warn-bg: #fff1dc;
  --ok: #24663a;
  --shadow: 0 1px 2px rgb(29 43 69 / 0.06), 0 12px 40px -12px rgb(29 43 69 / 0.22);

  --serif: "PT Serif", Georgia, "Times New Roman", serif;
  --sans: "PT Sans", "Segoe UI", system-ui, sans-serif;
  --line: 1.75rem; /* one ruled line of the page */
  --margin: clamp(16px, 6vw, 88px); /* where the red margin line sits */
  --measure: 80rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141b29;
    --sheet: #1b2435;
    --band: #222d42;
    --ruling: #2f3b52;
    --ruling-strong: #6f7f97;
    --margin-red: #9c5555;
    --ink: #e6ebf3;
    --ink-muted: #aab4c4;
    --accent: #7f9cf0;
    --accent-strong: #a9bdf6;
    --accent-wash: #1b2a55;
    --on-accent: #0f1830;
    --warn: #f0b36a;
    --warn-bg: #3a2a14;
    --ok: #7fcf98;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 16px 48px -12px rgb(0 0 0 / 0.6);
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--sans);
  font-variant-numeric: tabular-nums;
  overflow-x: hidden;
}

/* The red margin line of a ledger page, the length of the whole page. */
body::before {
  content: "";
  position: fixed;
  inset: 0 auto 0 calc(var(--margin) - 10px);
  width: 1px;
  background: var(--margin-red);
  box-shadow: 4px 0 0 var(--margin-red);
  opacity: 0.7;
  pointer-events: none;
  z-index: 0;
}

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

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
}
a:hover {
  color: var(--accent-strong);
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

kbd,
code {
  font-family: var(--sans);
  font-size: 0.92em;
  padding: 0.05em 0.4em;
  border: 1px solid var(--ruling);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--sheet);
  white-space: nowrap;
}
code {
  border-bottom-width: 1px;
}

.skip {
  position: absolute;
  left: 8px;
  top: -40px;
  padding: 6px 12px;
  background: var(--accent);
  color: var(--on-accent);
  z-index: 10;
}
.skip:focus {
  top: 8px;
}

.wrap {
  position: relative;
  z-index: 1;
  max-width: calc(var(--measure) + var(--margin) * 2);
  margin: 0 auto;
  padding: 0 var(--margin) 0 calc(var(--margin) + 16px);
}

/* Top bar */
.top {
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ruling);
}
.top-in {
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: calc(var(--measure) + var(--margin) * 2);
  margin: 0 auto;
  padding: 10px var(--margin) 10px calc(var(--margin) + 16px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 700 1.25rem/1 var(--serif);
  color: var(--ink);
  text-decoration: none;
}
.brand img {
  border-radius: 7px;
}
.top-nav {
  display: flex;
  gap: 22px;
  margin-left: auto;
}
.top-nav a {
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 0.98rem;
}
.top-nav a:hover {
  color: var(--ink);
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: var(--on-accent);
  font: 700 1.0625rem/1 var(--sans);
  text-decoration: none;
  transition: background-color 0.15s;
}
.button:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: var(--on-accent);
  text-decoration: none;
}
.button svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}
.button.ghost {
  background: transparent;
  color: var(--accent);
}
.button.ghost:hover {
  background: var(--accent-wash);
  color: var(--accent-strong);
}
.button.small {
  min-height: 36px;
  padding: 0 16px;
  font-size: 0.98rem;
}

.ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.note {
  margin: 14px 0 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

/* Hero */
.hero {
  padding: clamp(40px, 8vw, 96px) 0 clamp(48px, 7vw, 88px);
}
h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 700;
  color: var(--ink);
  text-wrap: balance;
}
h1 {
  max-width: 21em;
  margin: 0;
  font-size: clamp(2rem, 4.4vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -0.012em;
}
.lede {
  max-width: 38em;
  margin: 24px 0 0;
  font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
  color: var(--ink-muted);
}

/* The live month sheet */
.demo {
  margin: clamp(40px, 6vw, 72px) 0 0;
}
.demo-caption {
  max-width: 44em;
  margin-bottom: 14px;
  color: var(--ink-muted);
  font-size: 0.98rem;
}
.demo-fallback {
  display: block;
  border: 1px solid var(--ruling);
  border-radius: 10px;
  box-shadow: var(--shadow);
}
.sheet[hidden] {
  display: none;
}
.sheet {
  overflow: hidden;
  border: 1px solid var(--ruling);
  border-radius: 10px;
  background: var(--sheet);
  box-shadow: var(--shadow);
  font-size: 0.95rem;
}
.sheet-bar {
  display: flex;
  align-items: center;
  height: 44px;
  padding: 0 18px;
  border-bottom: 1px solid var(--ruling);
}
.sheet-title {
  color: var(--ink-muted);
}
.sheet-title b {
  margin-right: 8px;
  color: var(--ink);
}
.sheet-totals {
  display: flex;
  gap: 28px;
  overflow-x: auto;
  padding: 12px 18px;
  background: var(--band);
  border-bottom: 2px solid var(--ruling-strong);
}
.total {
  display: grid;
  gap: 2px;
  flex: none;
}
.total span {
  color: var(--ink-muted);
  font-size: 0.88rem;
}
.total b {
  font-weight: 400;
  font-size: 1.05rem;
}
.total.main b {
  font-weight: 700;
  font-size: 1.4rem;
}
.total b.bump {
  animation: bump 0.9s ease-out;
}
@keyframes bump {
  from {
    background: var(--accent-wash);
  }
  to {
    background: transparent;
  }
}

.sheet-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 17rem;
}
.grid-scroll {
  overflow-x: auto;
  max-height: 25rem;
  overflow-y: auto;
}
.grid {
  width: 100%;
  min-width: 46rem;
  border-collapse: collapse;
}
.grid th,
.grid td {
  height: 2.4rem;
  padding: 0 12px;
  border-bottom: 1px solid var(--ruling);
  border-right: 1px solid var(--ruling);
  text-align: left;
  white-space: nowrap;
}
.grid th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--sheet);
  color: var(--ink-muted);
  font-weight: 400;
  border-bottom: 2px solid var(--ruling);
}
.grid .n {
  width: 3rem;
  color: var(--ink-muted);
  text-align: center;
}
.grid .num {
  text-align: right;
}
.grid .muted {
  color: var(--ink-muted);
}
.grid tbody tr.added td {
  animation: bump 1.4s ease-out;
}
.grid tfoot td {
  position: sticky;
  bottom: 0;
  background: var(--accent-wash);
  border-top: 2px solid var(--accent);
}
.grid input,
.grid select {
  width: 100%;
  min-width: 7rem;
  height: 2rem;
  padding: 0 8px;
  border: 1px solid var(--ruling-strong);
  border-radius: 4px;
  background: var(--sheet);
  color: var(--ink);
  font: inherit;
}
.grid .num input {
  width: 7.5rem;
  text-align: right;
}
.grid input:focus,
.grid select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.limits {
  padding: 14px 18px;
  border-left: 1px solid var(--ruling);
  overflow-y: auto;
  max-height: 25rem;
}
.limits h3 {
  margin: 0 0 8px;
  font: 700 1rem/1.3 var(--sans);
}
.limits ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.limits li {
  padding: 8px 0;
  border-bottom: 1px solid var(--ruling);
  font-size: 0.88rem;
  color: var(--ink-muted);
  line-height: 1.4;
}
.limits li b {
  display: block;
  color: var(--ink);
  font-size: 0.95rem;
}
.limits .gone {
  color: #a41c1c;
  font-weight: 700;
}
@media (prefers-color-scheme: dark) {
  .limits .gone {
    color: #f19a9a;
  }
}
.meter {
  display: block;
  height: 4px;
  margin: 6px 0 2px;
  border-radius: 2px;
  background: var(--band);
  overflow: hidden;
}
.meter i {
  display: block;
  height: 100%;
  background: var(--ruling-strong);
  transition: width 0.4s;
}

.advice {
  min-height: 2.75rem;
  margin: 0;
  padding: 10px 18px;
  border-top: 1px solid var(--ruling);
  color: var(--ink-muted);
}
.advice b {
  color: var(--ink);
}
.advice.hint {
  background: var(--warn-bg);
  color: var(--ink);
}

.sheet-tabs {
  display: flex;
  overflow: hidden;
  border-top: 1px solid var(--ruling);
  background: var(--band);
  color: var(--ink-muted);
  font-size: 0.9rem;
}
.sheet-tabs span {
  padding: 8px 18px;
  border-right: 1px solid var(--ruling);
}
.sheet-tabs .on {
  background: var(--sheet);
  color: var(--ink);
  font-weight: 700;
  box-shadow: inset 0 -2px 0 var(--accent);
}
.sheet-tabs .sep {
  flex: 1;
  padding: 0;
}

/* Sections */
.block {
  padding: clamp(56px, 8vw, 104px) 0;
  border-top: 1px solid var(--ruling);
}
h2 {
  max-width: 22em;
  margin: 0;
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  line-height: 1.15;
}
.intro {
  max-width: 40em;
  margin: 18px 0 0;
  font-size: 1.125rem;
  color: var(--ink-muted);
}

.feature {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  margin-top: clamp(56px, 7vw, 96px);
}
.feature.flip .feature-text {
  order: 2;
}
.feature h3 {
  margin: 0 0 12px;
  font-size: clamp(1.4rem, 2.2vw, 1.75rem);
  line-height: 1.2;
}
.feature p {
  margin: 0 0 14px;
  max-width: 34em;
}
.shot {
  display: block;
  border: 1px solid var(--ruling);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

/* Privacy */
.privacy {
  background: var(--sheet);
}
.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(28px, 5vw, 64px);
  margin: 40px 0 0;
}
.facts div {
  padding: 20px 0;
  border-top: 1px solid var(--ruling);
}
.facts dt {
  margin-bottom: 6px;
  font: 700 1.2rem/1.3 var(--serif);
}
.facts dd {
  margin: 0;
  color: var(--ink-muted);
}

/* Install: a real sequence, so the steps are numbered */
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 48px);
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li {
  counter-increment: step;
  padding-top: 16px;
  border-top: 2px solid var(--ink);
}
.steps li::before {
  content: counter(step);
  display: block;
  margin-bottom: 8px;
  font: 700 2rem/1 var(--serif);
  color: var(--accent);
}
.steps h3 {
  margin: 0 0 8px;
  font-size: 1.25rem;
}
.steps p {
  margin: 0;
  color: var(--ink-muted);
}

/* Footer */
.foot {
  border-top: 3px double var(--ruling-strong);
  padding: 28px 0 40px;
  color: var(--ink-muted);
  font-size: 0.95rem;
}
.foot-in {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.foot-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 700 1.05rem/1 var(--serif);
  color: var(--ink);
}
.foot-brand img {
  border-radius: 5px;
}
.foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}
.foot a {
  color: var(--ink-muted);
}

/* 404 */
.lost {
  min-height: 70vh;
  padding: 18vh 0 0;
}

@media (max-width: 960px) {
  .sheet-body {
    grid-template-columns: 1fr;
  }
  .limits {
    border-left: 0;
    border-top: 1px solid var(--ruling);
    max-height: none;
  }
  .limits ul {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
    gap: 0 20px;
  }
  .feature,
  .feature.flip {
    grid-template-columns: 1fr;
  }
  .feature.flip .feature-text {
    order: 0;
  }
  .steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .top-nav {
    display: none;
  }
  .top-in .button {
    margin-left: auto;
  }
  .facts {
    grid-template-columns: 1fr;
  }
  .grid {
    min-width: 34rem;
  }
  .grid .opt,
  .limits {
    display: none;
  }
  .button {
    width: 100%;
    justify-content: center;
  }
  .top-in .button {
    width: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* The browser's datalist arrow would read as a dropdown; the hint list opens while typing. */
.grid input::-webkit-calendar-picker-indicator {
  display: none !important;
}

/* A drawn import result, in the wording of the import wizard */
.import {
  padding: 22px 24px;
  border: 1px solid var(--ruling);
  border-radius: 8px;
  background: var(--sheet);
  box-shadow: var(--shadow);
}
.import-file {
  margin: 0 0 12px;
  font: 700 1.1rem/1.3 var(--sans);
}
.import table {
  width: 100%;
  border-collapse: collapse;
}
.import th,
.import td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--ruling);
  text-align: left;
}
.import th {
  color: var(--ink-muted);
  font-weight: 400;
  background: var(--band);
}
.import .num {
  text-align: right;
}
.import .ok {
  color: var(--ok);
}
.import-button {
  display: inline-block;
  margin-top: 16px;
  padding: 9px 16px;
  border-radius: 4px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 700;
}