/* DigitalSolveWorks — shared stylesheet
   Plain CSS, no build step. Custom properties drive light/dark theming. */

:root {
  --color-bg: #fbfaf8;
  --color-bg-raised: #ffffff;
  --color-bg-inset: #f2f0eb;
  --color-text: #1c1b19;
  --color-text-muted: #55524b;
  --color-border: #ddd9d0;
  --color-accent: #8a4a2f;
  --color-accent-strong: #6e3a24;
  --color-accent-contrast: #fffaf5;
  --color-code-bg: #f2ede4;
  --color-code-text: #3a3630;
  --color-link-visited: #6e3a24;
  --focus-ring: #1a6fb0;

  --measure: 42rem;
  --measure-wide: 62rem;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
  --font-serif: Georgia, "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #15140f;
    --color-bg-raised: #1c1a15;
    --color-bg-inset: #221f19;
    --color-text: #ece8e0;
    --color-text-muted: #b3ada0;
    --color-border: #35322a;
    --color-accent: #d99367;
    --color-accent-strong: #e6ac85;
    --color-accent-contrast: #1c1108;
    --color-code-bg: #1f1c16;
    --color-code-text: #ded8cb;
    --color-link-visited: #cf9a7c;
    --focus-ring: #6cb6ee;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:visited {
  color: var(--color-link-visited);
}

a:hover {
  color: var(--color-accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  padding: 0.75em 1.25em;
  z-index: 100;
  border-radius: 0 0 6px 0;
}

.skip-link:focus {
  left: 0;
}

/* Layout shell */
.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-raised);
}

.site-header-inner {
  max-width: var(--measure-wide);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.wordmark {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
}

.wordmark:visited {
  color: var(--color-text);
}

.wordmark span {
  color: var(--color-accent);
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.25rem 0.1rem;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

main {
  display: block;
}

.wrap {
  max-width: var(--measure-wide);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.wrap-narrow {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 3rem 0;
}

section + section {
  border-top: 1px solid var(--color-border);
}

.hero {
  padding: 4rem 0 3rem;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.25;
  margin: 0 0 1.25rem;
  max-width: 22ch;
}

.hero .lede {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 52ch;
  margin: 0 0 1.75rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-accent);
  margin: 0 0 0.75rem;
}

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}

h2 {
  font-size: 1.5rem;
  margin: 0 0 1rem;
}

h3 {
  font-size: 1.15rem;
  margin: 1.75rem 0 0.6rem;
}

p {
  margin: 0 0 1.1rem;
}

.text-muted {
  color: var(--color-text-muted);
}

.grid-two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem;
}

@media (max-width: 42rem) {
  .grid-two {
    grid-template-columns: 1fr;
  }
}

.card {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-bg-raised);
  padding: 1.75rem;
}

.card h3 {
  margin-top: 0;
  font-size: 1.2rem;
}

.card .price {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-accent-strong);
  margin: 0.5rem 0 1rem;
}

.btn {
  display: inline-block;
  padding: 0.7em 1.3em;
  border-radius: 7px;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--color-accent);
}

.btn:visited {
  color: var(--color-accent-contrast);
}

.btn:hover {
  background: var(--color-accent-strong);
  border-color: var(--color-accent-strong);
  color: var(--color-accent-contrast);
}

.btn-quiet {
  display: inline-block;
  color: var(--color-accent-strong);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  font-weight: 600;
}

ul.plain, ol.plain {
  padding-left: 1.25rem;
}

ul.plain li, ol.plain li {
  margin-bottom: 0.5rem;
}

dl.spec {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.6rem 1.25rem;
  margin: 1.25rem 0;
}

dl.spec dt {
  font-weight: 600;
  color: var(--color-text-muted);
}

dl.spec dd {
  margin: 0;
}

/* Article listing */
.article-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.article-list li {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.5rem 1.75rem;
  background: var(--color-bg-raised);
}

.article-list a {
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
}

.article-list time {
  display: block;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
}

.article-list .dek {
  color: var(--color-text-muted);
  margin: 0.5rem 0 0;
}

.empty-note {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-top: 1.5rem;
}

/* Long-form article typography */
.article-meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

article.longform {
  max-width: 72ch;
  font-size: 1.06rem;
  line-height: 1.75;
}

article.longform h1 {
  font-size: clamp(1.6rem, 4vw, 2.15rem);
  margin-bottom: 0.75rem;
}

article.longform h2 {
  font-size: 1.4rem;
  margin-top: 2.5rem;
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
}

article.longform h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 2rem;
}

article.longform h3 {
  font-size: 1.15rem;
  margin-top: 2rem;
}

article.longform p {
  margin: 0 0 1.35rem;
}

article.longform ul,
article.longform ol {
  padding-left: 1.4rem;
  margin: 0 0 1.35rem;
}

article.longform li {
  margin-bottom: 0.5rem;
}

article.longform blockquote {
  margin: 1.75rem 0;
  padding: 0.25rem 0 0.25rem 1.25rem;
  border-left: 3px solid var(--color-accent);
  color: var(--color-text-muted);
  font-style: italic;
}

article.longform pre {
  background: var(--color-code-bg);
  color: var(--color-code-text);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.1rem 1.25rem;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.6;
  margin: 0 0 1.5rem;
}

article.longform code {
  font-family: var(--font-mono);
  background: var(--color-code-bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.88em;
}

article.longform pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
}

article.longform table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
}

article.longform th,
article.longform td {
  text-align: left;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--color-border);
}

article.longform th {
  background: var(--color-bg-inset);
}

article.longform hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2.5rem 0;
}

article.longform ul.checklist {
  list-style: none;
  padding-left: 0;
}

article.longform ul.checklist li {
  margin-bottom: 0.75rem;
}

article.longform ul.checklist label {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  cursor: default;
}

article.longform ul.checklist input[type="checkbox"] {
  margin-top: 0.35rem;
  flex-shrink: 0;
  accent-color: var(--color-accent);
}

.placeholder-note {
  background: var(--color-bg-inset);
  border: 1px dashed var(--color-border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  margin-top: 2rem;
  padding: 2.5rem 0;
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

.site-footer .wrap {
  max-width: var(--measure-wide);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer a {
  color: var(--color-text-muted);
}

.site-footer nav ul {
  list-style: none;
  display: flex;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
}

/* 404 */
.error-page {
  padding: 5rem 0;
  text-align: left;
}

.error-page h1 {
  font-size: 2rem;
}

@media (max-width: 30rem) {
  .site-header-inner {
    padding: 1rem;
  }
  .wrap, .wrap-narrow {
    padding: 0 1.1rem;
  }
  section {
    padding: 2.25rem 0;
  }
  .hero {
    padding: 2.5rem 0 2rem;
  }
}

/* Diagrams (inline SVG) */
.diagram {
  margin: 1.75rem 0;
  overflow-x: auto;
}

.diagram svg {
  display: block;
  width: 100%;
  height: auto;
}

.diagram-caption {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-style: italic;
  margin: 0.5rem 0 1.75rem;
}

/* Comparison / pattern-matrix table */
table.table-compare {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

table.table-compare th,
table.table-compare td {
  text-align: left;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--color-border);
}

table.table-compare th {
  background: var(--color-bg-inset);
}

table.table-compare code {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

/* Sample deliverable preview card */
.sample-preview {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-bg-inset);
  padding: 1.5rem 1.75rem;
  margin: 1.5rem 0;
}

.sample-preview h4 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.sample-preview ol {
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
}

.sample-preview ol li {
  margin-bottom: 0.35rem;
}

/* Engagement stepper */
.stepper {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 1.75rem 0;
}

@media (max-width: 42rem) {
  .stepper {
    grid-template-columns: 1fr;
  }
}

.stepper-step {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.25rem 1.4rem;
  background: var(--color-bg-raised);
}

.stepper-step .stepper-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.6rem;
}

.stepper-step p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

/* Decision badge (services offer micro-copy) */
.decision-badge {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-accent-strong);
  background: var(--color-bg-inset);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.3em 0.9em;
  margin: 0 0 1.1rem;
}

/* Fact grid (async delivery / trust details) */
.fact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 1rem 0 1.75rem;
}

@media (max-width: 42rem) {
  .fact-grid {
    grid-template-columns: 1fr;
  }
}

.fact-item {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.25rem 1.4rem;
  background: var(--color-bg-raised);
}

.fact-item .fact-label {
  margin: 0 0 0.4rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
}

.fact-item p:last-child {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}