:root {
  color-scheme: light;
  --paper: #f5f1e8;
  --paper-2: #e8e1d3;
  --surface: #fffdf7;
  --surface-2: #f8f6ef;
  --ink: #1d1f1d;
  --muted: #6b675f;
  --line: #d8d0c1;
  --line-strong: #b9b0a0;
  --green: #147c63;
  --green-soft: #e0f1e8;
  --amber-soft: #fff0d8;
  --red: #9a4136;
  --blue: #2f597c;
  --shadow: 0 28px 70px rgb(30 32 29 / 0.1);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(180deg, rgb(255 255 255 / 0.8), rgb(255 255 255 / 0) 320px),
    linear-gradient(90deg, rgb(29 31 29 / 0.035) 1px, transparent 1px),
    linear-gradient(rgb(29 31 29 / 0.026) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 42px 42px, 42px 42px, auto;
  color: var(--ink);
  font-family: Avenir Next, Helvetica Neue, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: 0.2;
  background-image:
    radial-gradient(circle at 22% 18%, rgb(29 31 29 / 0.08) 0 1px, transparent 1px),
    radial-gradient(circle at 74% 80%, rgb(255 255 255 / 0.74) 0 1px, transparent 1px);
  background-size: 6px 6px, 8px 8px;
  mix-blend-mode: soft-light;
}

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

button {
  min-height: 40px;
  border: 1px solid #222622;
  border-radius: 8px;
  background: linear-gradient(180deg, #2b2d2a, #171916);
  color: var(--surface);
  cursor: pointer;
  font-weight: 850;
  padding: 10px 14px;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
}

button,
.primary-link,
.secondary-link {
  text-decoration: none;
}

button:hover {
  transform: translateY(-1px);
}

button:active {
  transform: translateY(1px) scale(0.99);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.54;
  transform: none;
}

button.ghost {
  background: rgb(255 253 247 / 0.62);
  color: var(--ink);
  border-color: var(--line-strong);
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgb(255 253 247 / 0.9);
  color: var(--ink);
  outline: none;
}

input {
  min-height: 40px;
  padding: 10px 11px;
}

input:focus,
textarea:focus {
  border-color: rgb(20 124 99 / 0.44);
  box-shadow: 0 0 0 4px rgb(20 124 99 / 0.1);
}

.notes-nav {
  position: sticky;
  z-index: 10;
  top: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 20px;
  min-height: 70px;
  padding: 14px 32px;
  border-bottom: 1px solid rgb(216 208 193 / 0.82);
  background: rgb(245 241 232 / 0.86);
  backdrop-filter: blur(20px) saturate(1.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 900;
}

.brand span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--ink);
  color: var(--surface);
}

.notes-nav nav {
  display: inline-flex;
  justify-content: flex-end;
  gap: 6px;
}

.notes-nav nav a {
  padding: 9px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.notes-nav nav a:hover {
  background: rgb(255 253 247 / 0.7);
  color: var(--ink);
}

.notes-shell {
  width: min(1440px, calc(100% - 48px));
  margin: 0 auto;
  padding: 34px 0 46px;
}

.notes-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 500px);
  gap: 34px;
  align-items: stretch;
  padding: 38px 0 24px;
}

.hero-copy {
  max-width: 760px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 740px;
  margin-bottom: 18px;
  font-size: clamp(40px, 4.8vw, 66px);
  line-height: 1.02;
  letter-spacing: 0;
  text-wrap: balance;
}

h2 {
  margin-bottom: 0;
  font-size: 21px;
  letter-spacing: 0;
}

.hero-copy h1 + p {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.68;
}

.hero-actions,
.trust-strip,
.signup-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-actions {
  margin-top: 24px;
}

.primary-link.locked {
  opacity: 0.68;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 8px;
  font-weight: 850;
  padding: 10px 14px;
}

.primary-link {
  border: 1px solid #222622;
  background: linear-gradient(180deg, #2b2d2a, #171916);
  color: var(--surface);
}

.secondary-link {
  border: 1px solid var(--line-strong);
  background: rgb(255 253 247 / 0.62);
  color: var(--ink);
}

.trust-strip {
  margin-top: 16px;
}

.trust-strip span,
.signup-steps span {
  border: 1px solid rgb(20 124 99 / 0.2);
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  padding: 7px 10px;
  text-transform: uppercase;
}

.signup-card,
.locked-panel,
.commercial-band,
.editor-panel,
.result-panel {
  border: 1px solid rgb(29 31 29 / 0.14);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgb(255 253 247 / 0.9), rgb(250 247 239 / 0.78)),
    var(--surface);
  box-shadow:
    var(--shadow),
    inset 0 1px 0 rgb(255 253 247 / 0.88),
    inset 0 -1px 0 rgb(29 31 29 / 0.04);
  backdrop-filter: blur(18px) saturate(1.08);
}

.signup-card {
  display: grid;
  align-content: start;
  gap: 14px;
  padding: 22px;
}

.signup-head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.signup-head .eyebrow {
  margin-bottom: 4px;
}

.status-dot {
  width: 10px;
  height: 10px;
  display: inline-block;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 0 5px var(--green-soft);
}

.signup-card > strong {
  display: block;
  margin-top: 4px;
  font-size: 18px;
}

.signup-card > p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.login-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
}

.login-controls button {
  width: 100%;
}

.signup-steps {
  padding-top: 4px;
}

.signup-steps span {
  background: rgb(255 253 247 / 0.72);
  border-color: var(--line);
  color: var(--muted);
}

.locked-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  margin-bottom: 18px;
  padding: 20px;
}

.locked-panel h2 {
  margin-bottom: 8px;
}

.locked-panel p {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.62;
}

.commercial-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin-bottom: 18px;
  padding: 0;
  background: rgb(29 31 29 / 0.12);
}

.commercial-band article {
  min-width: 0;
  min-height: 132px;
  padding: 18px;
  background: rgb(255 253 247 / 0.82);
}

.commercial-band span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--green);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 900;
}

.commercial-band strong {
  display: block;
  margin-bottom: 8px;
  font-size: 17px;
}

.commercial-band p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.workbench {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.82fr);
  gap: 18px;
  align-items: start;
}

.editor-panel,
.result-panel {
  min-width: 0;
  padding: 18px;
}

.result-panel {
  position: sticky;
  top: 88px;
}

.panel-title {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

#previewBadge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid rgb(20 124 99 / 0.22);
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

#noteInput {
  display: block;
  min-height: 620px;
  resize: vertical;
  padding: 20px;
  background:
    linear-gradient(rgb(29 31 29 / 0.035) 1px, transparent 1px),
    rgb(255 253 247 / 0.94);
  background-size: 100% 34px;
  font-family: var(--mono);
  font-size: 15px;
  line-height: 34px;
  white-space: pre;
  overflow-wrap: normal;
}

.editor-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  margin-top: 14px;
}

.sync-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sync-options label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgb(255 253 247 / 0.64);
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.sync-options input {
  width: auto;
  min-height: 0;
  accent-color: var(--green);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.status-line {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.status-line.error {
  color: var(--red);
}

.status-line.ok {
  color: var(--green);
}

.totals-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}

.totals-grid article {
  min-width: 0;
  min-height: 86px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-2);
}

.totals-grid span,
.section-row span,
.result-meta,
.item-chip span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.totals-grid strong {
  display: block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: clamp(17px, 1.6vw, 23px);
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.section-rows,
.result-rows {
  display: grid;
  gap: 8px;
}

.section-rows {
  margin-bottom: 16px;
}

.section-row,
.result-row {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgb(255 253 247 / 0.74);
}

.section-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 12px;
}

.section-row strong {
  display: block;
  margin-top: 4px;
  line-height: 1.25;
}

.section-row b {
  color: var(--green);
  font-family: var(--mono);
}

.result-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(120px, auto);
  gap: 12px;
  padding: 12px;
}

.result-row.heading {
  background: rgb(29 31 29 / 0.92);
  color: var(--surface);
}

.result-row.total {
  border-color: rgb(20 124 99 / 0.28);
  background: linear-gradient(180deg, rgb(224 241 232 / 0.82), rgb(255 253 247 / 0.64));
}

.result-row.note {
  background: var(--amber-soft);
}

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

.result-title {
  display: block;
  margin-top: 5px;
  line-height: 1.36;
  overflow-wrap: anywhere;
}

.result-value {
  justify-self: end;
  align-self: start;
  max-width: 220px;
  color: var(--green);
  font-family: var(--mono);
  font-weight: 950;
  text-align: right;
  overflow-wrap: anywhere;
}

.result-row.heading .result-value {
  color: rgb(255 253 247 / 0.54);
}

.result-row.note .result-value {
  color: var(--blue);
}

.item-chips {
  display: grid;
  gap: 6px;
  margin-top: 10px;
}

.item-chip {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 7px 8px;
  border-radius: 8px;
  background: rgb(29 31 29 / 0.045);
}

.item-chip strong {
  min-width: 0;
  overflow-wrap: anywhere;
  font-weight: 800;
}

.item-chip b {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
}

@media (max-width: 1120px) {
  .notes-hero,
  .locked-panel,
  .commercial-band,
  .workbench {
    grid-template-columns: 1fr;
  }

  .result-panel {
    position: static;
  }

  .login-controls {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .notes-nav {
    position: static;
    grid-template-columns: 1fr;
    padding: 14px 16px;
  }

  .notes-nav nav {
    justify-content: flex-start;
    overflow-x: auto;
  }

  .notes-shell {
    width: calc(100% - 28px);
    padding-top: 20px;
  }

  .notes-hero {
    padding-top: 18px;
  }

  .totals-grid,
  .login-controls,
  .editor-actions {
    grid-template-columns: 1fr;
  }

  .button-row {
    justify-content: stretch;
  }

  .button-row button {
    width: 100%;
  }

  #noteInput {
    min-height: 440px;
    font-size: 14px;
  }

  .result-row {
    grid-template-columns: 1fr;
  }

  .result-value {
    justify-self: start;
    text-align: left;
  }
}