:root {
  --ink: #1a1d21;
  --ink-soft: #5a616b;
  --desk: #cfd3d8;
  --chrome: #e7e9ed;
  --fog: #e7e9ed;
  --paper: #f4f5f7;
  --panel: #ffffff;
  --line: #9aa1ab;
  --line-soft: #c5cad1;
  --accent: #e0362c;
  --accent-deep: #b92a22;
  --steel: #2b5c8a;
  --title: #6e7c8b;
  --shadow: none;
  --radius: 2px;
  --font-display: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.35) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(rgba(255, 255, 255, 0.35) 1px, transparent 1px) 0 0 / 24px 24px,
    var(--desk);
}

a {
  color: var(--steel);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

.site-shell {
  position: relative;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--chrome);
  border-bottom: 2px solid var(--line);
}

.titlebar {
  background: var(--title);
  color: #fff;
}

.titlebar-inner {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  min-height: 2.35rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.traffic {
  display: inline-flex;
  gap: 0.28rem;
}

.traffic i {
  width: 0.65rem;
  height: 0.65rem;
  border: 1px solid rgba(0, 0, 0, 0.25);
  background: #e8e8e8;
  display: block;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.1rem;
  color: #fff;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.brand span {
  color: #ffd2ce;
}

.titlebar-caption {
  margin-left: auto;
  font-size: 0.78rem;
  opacity: 0.9;
  font-family: var(--font-mono);
}

.toolbar {
  background: var(--chrome);
  border-top: 1px solid #fff;
}

.header-inner,
.footer-inner,
.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 2.9rem;
  position: relative;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  margin-right: auto;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.35rem 0.55rem;
  border: 1px solid transparent;
}

.nav a:hover,
.nav a[aria-current="page"] {
  background: #fff;
  border-color: var(--line);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}

.lang-switch button {
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.55rem;
  cursor: pointer;
}

.lang-switch button[aria-pressed="true"] {
  background: var(--ink);
  color: #fff;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: var(--radius);
  padding: 0.4rem 0.75rem;
  font: inherit;
  cursor: pointer;
}

.hero {
  position: relative;
  padding: 1.25rem 0 0.5rem;
}

.hero-stage {
  padding-bottom: 0.5rem;
}

.paint-window {
  border: 2px solid var(--line);
  background: var(--chrome);
  box-shadow: 4px 4px 0 rgba(26, 29, 33, 0.12);
}

.paint-window-bar {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 2rem;
  padding: 0 0.65rem;
  background: var(--title);
  color: #fff;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.paint-window-bar span {
  width: 0.6rem;
  height: 0.6rem;
  border: 1px solid rgba(0, 0, 0, 0.25);
  background: #ececec;
}

.paint-window-bar strong {
  margin-left: 0.45rem;
  font-weight: 600;
}

.paint-window-body {
  display: grid;
  grid-template-columns: 58px 1fr;
  background:
    linear-gradient(45deg, #eceff3 25%, transparent 25%) 0 0 / 16px 16px,
    linear-gradient(-45deg, #eceff3 25%, transparent 25%) 0 0 / 16px 16px,
    #fff;
  border-top: 1px solid #fff;
}

.paint-swatches {
  display: grid;
  gap: 0.35rem;
  align-content: start;
  padding: 0.7rem 0.55rem;
  background: var(--chrome);
  border-right: 2px solid var(--line-soft);
}

.swatch {
  width: 100%;
  aspect-ratio: 1;
  border: 2px solid #222;
  display: block;
}

.swatch.s1 { background: #111; }
.swatch.s2 { background: #e0362c; }
.swatch.s3 { background: #f0a202; }
.swatch.s4 { background: #2d7d46; }
.swatch.s5 { background: #2b5c8a; }
.swatch.s6 { background: #fff; }

.hero-content {
  position: relative;
  padding: 1.75rem 1.5rem 1.5rem;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  max-width: 48rem;
}

.hero-content::before {
  content: "";
  position: absolute;
  inset: 1rem 1rem 1rem 1rem;
  border: 2px dashed rgba(224, 54, 44, 0.55);
  pointer-events: none;
}

.hero-brand {
  position: relative;
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 4.6rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
  font-weight: 700;
  animation: rise 0.55s ease both;
}

.hero-brand em {
  font-style: normal;
  color: var(--accent);
  font-weight: 700;
}

.hero h1 {
  position: relative;
  margin: 0 0 0.7rem;
  max-width: 16ch;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 650;
  animation: rise 0.55s ease 0.05s both;
}

.hero p {
  position: relative;
  margin: 0 0 1.2rem;
  max-width: 36ch;
  font-size: 1rem;
  color: var(--ink-soft);
  animation: rise 0.55s ease 0.1s both;
}

.cta-row {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  animation: rise 0.55s ease 0.14s both;
}

.hero-tools {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.15rem;
  animation: rise 0.55s ease 0.18s both;
}

.hero-tools a {
  display: inline-flex;
  align-items: center;
  min-height: 1.9rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  box-shadow: 1px 1px 0 rgba(0, 0, 0, 0.08);
}

.hero-tools a:hover {
  border-color: var(--ink);
  background: #fff7f6;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.55rem;
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius);
  border: 2px solid var(--ink);
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: #222;
}

.btn-primary:hover {
  background: var(--accent-deep);
}

.btn-ghost {
  background: #fff;
  color: var(--ink);
}

.btn-ghost:hover {
  background: #fff3f2;
}

.btn-solid {
  background: var(--ink);
  color: #fff;
  border-color: #111;
}

.btn-solid:hover {
  background: #000;
}

.btn-line {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}

.section {
  padding: 4.25rem 0;
}

.section-head {
  max-width: 34rem;
  margin-bottom: 2rem;
}

.section-head h2 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.2vw, 2.55rem);
  letter-spacing: -0.03em;
  line-height: 1.12;
  font-weight: 700;
}

.section-head p {
  margin: 0;
  color: var(--ink-soft);
}

/* Home: asymmetric tools */
.page-home .tools-section {
  background: var(--panel);
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}

.page-home .tools-section.section {
  padding: 2.5rem 0 3rem;
}

.tools-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: start;
}

.tools-head {
  position: static;
  margin-bottom: 0;
  max-width: 40rem;
}

.tool-rail {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: tool;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
}

.tool-rail > li {
  counter-increment: tool;
  border-bottom: 1px solid var(--line);
}

.tool-rail > li:nth-child(odd) {
  border-right: 1px solid var(--line);
  padding-right: 0.85rem;
}

.tool-rail > li:nth-child(even) {
  padding-left: 0.85rem;
}

.tool-link {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.15rem 0.55rem;
  padding: 0.85rem 0.1rem;
  color: inherit;
  text-decoration: none;
  transition: background 0.15s ease;
}

.tool-link::before {
  content: counter(tool, decimal-leading-zero);
  grid-row: 1 / span 2;
  align-self: start;
  padding-top: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.tool-link:hover {
  background: #fff7f6;
}

.tool-link strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  margin-bottom: 0;
  font-weight: 700;
}

.tool-link span {
  grid-column: 2;
  color: var(--ink-soft);
  font-size: 0.86rem;
  line-height: 1.4;
}

/* fallback for non-home tool-grid pages if any remain */
.tool-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.content-section {
  background: var(--paper);
  border-top: 1px solid var(--line);
}

.content-section.alt {
  background: var(--fog);
  border-bottom: 1px solid var(--line);
}

.content-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem 3rem;
  align-items: start;
}

.home-prose h2 {
  margin-top: 0;
}

.home-faq {
  max-width: 46rem;
}

.promise-section {
  background: var(--fog);
  border-top: 1px solid var(--line);
}

.promise-layout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem 2.5rem;
  align-items: start;
  border-left: 3px solid var(--accent);
  padding-left: 1.5rem;
}

.promise-copy {
  grid-column: 2;
  max-width: 46rem;
}

.promise-copy > p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

.promise-kicker {
  grid-row: 1 / span 2;
  margin: 0;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--accent);
  align-self: stretch;
}

.promise-layout .section-head {
  margin-bottom: 0.4rem;
}

.promise-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.65rem;
  max-width: 36rem;
}

.promise-list li {
  padding-left: 0;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  padding-top: 0.65rem;
}

.promise-list li::before {
  display: none;
}

.page-hero {
  padding: 3.5rem 0 1.5rem;
}

.page-hero h1 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.035em;
  line-height: 1.1;
}

.page-hero p {
  margin: 0;
  max-width: 42rem;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.tool-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  padding-bottom: 4rem;
}

.panel {
  background: var(--panel);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: 3px 3px 0 rgba(26, 29, 33, 0.08);
}

.panel h2,
.panel h3 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

.dropzone {
  display: grid;
  place-items: center;
  min-height: 180px;
  padding: 1.25rem;
  border: 1px dashed #9aa3af;
  border-radius: var(--radius);
  background: var(--fog);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.dropzone:hover,
.dropzone.is-dragover {
  border-color: var(--accent);
  background: #fff7f6;
}

.dropzone strong {
  display: block;
  font-family: var(--font-display);
  margin-bottom: 0.25rem;
}

.dropzone span {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.controls {
  display: grid;
  gap: 0.9rem;
  margin-top: 1rem;
}

label.field {
  display: grid;
  gap: 0.35rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="range"],
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.7rem 0.85rem;
  font: inherit;
  color: var(--ink);
  background: #fff;
}

textarea {
  min-height: 220px;
  resize: vertical;
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.stat {
  padding: 0.85rem 0.95rem;
  border-radius: var(--radius);
  background: var(--fog);
  border: 1px solid var(--line);
}

.stat b {
  display: block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.stat span {
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.preview-frame {
  display: grid;
  place-items: center;
  min-height: 220px;
  border-radius: var(--radius);
  background:
    linear-gradient(45deg, #e4e6ea 25%, transparent 25%),
    linear-gradient(-45deg, #e4e6ea 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e4e6ea 75%),
    linear-gradient(-45deg, transparent 75%, #e4e6ea 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
  overflow: hidden;
  border: 1px solid var(--line);
}

.preview-frame img,
.preview-frame canvas {
  max-height: 360px;
  width: auto;
  height: auto;
}

.note {
  margin: 0.85rem 0 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.prose {
  max-width: 46rem;
}

.info-panel {
  margin: 0 0 2.5rem;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--line);
}

.info-block {
  margin: 0 0 2rem;
  max-width: 46rem;
}

.info-block h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  letter-spacing: -0.02em;
}

.info-block p {
  margin: 0 0 0.75rem;
  color: var(--ink-soft);
}

.info-steps {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--ink-soft);
  display: grid;
  gap: 0.45rem;
}

.info-faq {
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
}

.info-faq:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.info-faq h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 650;
}

.info-faq p {
  margin: 0;
}

.info-tips {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--ink-soft);
  display: grid;
  gap: 0.45rem;
}

.policy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  margin-top: 1.25rem;
}

.policy-links a {
  font-weight: 600;
}

.prose h2 {
  margin: 2rem 0 0.7rem;
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

.prose p,
.prose li {
  color: var(--ink-soft);
}

.guide-list {
  display: grid;
  gap: 0;
}

.guide-list a {
  display: block;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
}

.guide-list a strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.guide-list a span {
  color: var(--ink-soft);
}

.site-footer {
  margin-top: 0;
  border-top: 2px solid var(--line);
  background: var(--chrome);
}

.footer-inner {
  display: grid;
  gap: 1rem;
  padding: 2.2rem 0;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.1rem;
}

.footer-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
}

.footer-copy {
  margin: 0;
  color: #6a7380;
  font-size: 0.88rem;
}

.hidden-input {
  display: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.ad-slot {
  margin: 0 0 1.5rem;
  min-height: 0;
  grid-column: 1 / -1;
}

.ad-slot:not([hidden]) {
  min-height: 90px;
}

.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 40;
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.15rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 4px 4px 0 rgba(26, 29, 33, 0.12);
}

.cookie-banner p {
  margin: 0;
  flex: 1 1 16rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.checklist {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.checklist li {
  position: relative;
  padding: 0.85rem 0.1rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.checklist li::before {
  display: none;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 860px) {
  .menu-toggle {
    display: inline-flex;
  }

  .header-actions {
    margin-left: auto;
  }

  .titlebar-caption {
    display: none;
  }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-left: 0;
    padding: 0.75rem;
    background: var(--chrome);
    border-bottom: 2px solid var(--line);
    flex-direction: column;
    align-items: stretch;
  }

  .nav.is-open {
    display: flex;
  }

  .paint-window-body {
    grid-template-columns: 1fr;
  }

  .paint-swatches {
    grid-auto-flow: column;
    grid-template-columns: repeat(6, 1fr);
    border-right: 0;
    border-bottom: 2px solid var(--line-soft);
  }

  .hero-content::before {
    inset: 0.65rem;
  }

  .tool-layout,
  .stats,
  .promise-layout,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .promise-copy {
    grid-column: auto;
  }

  .tool-rail {
    grid-template-columns: 1fr;
  }

  .tool-rail > li:nth-child(odd) {
    border-right: 0;
    padding-right: 0;
  }

  .tool-rail > li:nth-child(even) {
    padding-left: 0;
  }

  .promise-kicker {
    writing-mode: horizontal-tb;
    transform: none;
    letter-spacing: 0.16em;
    grid-row: auto;
  }

  .promise-list {
    grid-column: auto;
  }
}