:root {
  --bg: #f4efe6;
  --bg-strong: #efe6d8;
  --surface: rgba(255, 252, 246, 0.88);
  --surface-strong: #fffaf1;
  --border: rgba(44, 51, 51, 0.12);
  --text: #172121;
  --muted: #5c695f;
  --accent: #c86b3c;
  --accent-strong: #ab4d20;
  --accent-soft: rgba(200, 107, 60, 0.14);
  --shadow: 0 18px 50px rgba(40, 30, 20, 0.10);
  --radius: 24px;
  --radius-small: 16px;
  --mono: "IBM Plex Mono", monospace;
  --display: "Space Grotesk", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--display);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(200, 107, 60, 0.18), transparent 30%),
    radial-gradient(circle at top right, rgba(78, 137, 111, 0.16), transparent 24%),
    linear-gradient(180deg, #fcf8f1 0%, var(--bg) 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

.page-shell {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  padding: 14px 18px;
  background: rgba(255, 252, 246, 0.72);
  border: 1px solid var(--border);
  border-radius: 999px;
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand-mark {
  font-weight: 700;
  letter-spacing: -0.04em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.nav-links a {
  color: var(--muted);
}

.nav-links a[aria-current="page"] {
  color: var(--text);
  font-weight: 700;
}

.hero,
.tool-nav,
.tool-card,
.sidebar-card,
.ad-slot,
.site-footer {
  background: var(--surface);
  backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.9fr);
  gap: 28px;
  padding: 36px;
  border-radius: 32px;
}

.hero-copy h1,
.section-heading h2,
.sidebar-card h3,
.tool-card h3 {
  margin: 0;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
}

.hero-copy h1 {
  max-width: 14ch;
  font-size: clamp(2.4rem, 5.4vw, 4.4rem);
  line-height: 0.95;
}

.hero-text,
.card-text,
.sidebar-card p,
.site-footer p,
.stat-card p {
  color: var(--muted);
  line-height: 1.6;
}

.eyebrow {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

.hero-actions,
.tool-actions,
.chip-grid,
.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button,
.ghost-button,
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 999px;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover,
.ghost-button:hover,
.chip:hover {
  transform: translateY(-1px);
}

.button {
  padding: 0 18px;
  border: 1px solid transparent;
  cursor: pointer;
}

.button.primary {
  background: var(--accent);
  color: #fff9f3;
}

.button.primary:hover {
  background: var(--accent-strong);
}

.button.secondary,
.ghost-button,
.chip {
  background: var(--surface-strong);
  border: 1px solid var(--border);
  color: var(--text);
}

.ghost-button {
  padding: 0 14px;
  cursor: pointer;
}

.chip {
  padding: 0 16px;
}

.hero-points {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
}

.hero-points li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--border);
}

.hero-aside {
  display: grid;
  gap: 18px;
}

.stat-card,
.ad-slot {
  border-radius: var(--radius);
  padding: 22px;
  background: linear-gradient(180deg, rgba(255, 249, 240, 0.94), rgba(246, 238, 225, 0.85));
  border: 1px solid var(--border);
}

.stat-card strong {
  display: block;
  margin: 8px 0 10px;
  font-size: 2.25rem;
  letter-spacing: -0.04em;
}

.ad-slot {
  display: grid;
  place-items: center;
  min-height: 160px;
  text-align: center;
  color: var(--muted);
  border-style: dashed;
}

.ad-slot span {
  display: inline-block;
  margin-bottom: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.tool-nav {
  margin: 24px 0;
  padding: 24px 28px;
  border-radius: 28px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(280px, 0.65fr);
  gap: 24px;
  align-items: start;
}

.tools-column,
.sidebar-column {
  display: grid;
  gap: 20px;
}

.tool-card,
.sidebar-card,
.site-footer {
  border-radius: var(--radius);
  padding: 24px;
}

.card-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.stacked-mobile {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

label {
  display: grid;
  gap: 8px;
}

label span {
  font-family: var(--mono);
  font-size: 0.84rem;
  color: var(--muted);
}

textarea,
input,
pre {
  width: 100%;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.76);
  color: var(--text);
  font-family: var(--mono);
}

textarea,
pre {
  min-height: 168px;
  padding: 16px;
  resize: vertical;
  line-height: 1.55;
}

input {
  min-height: 52px;
  padding: 0 14px;
}

textarea:focus,
input:focus {
  outline: 2px solid rgba(200, 107, 60, 0.24);
  border-color: rgba(200, 107, 60, 0.36);
}

.tool-actions {
  margin-top: 14px;
}

.status {
  min-height: 24px;
  margin: 12px 0 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.84rem;
}

.status.success {
  color: #2f7a4c;
}

.status.error {
  color: #a33d25;
}

.regex-results pre {
  margin: 14px 0 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.sidebar-card {
  background: rgba(255, 253, 248, 0.85);
}

.ad-slot.tall {
  min-height: 420px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 24px;
}

.site-footer a {
  margin-left: 14px;
}

.content-page {
  display: grid;
  gap: 20px;
}

.page-intro,
.prose-card {
  background: var(--surface);
  backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 28px;
}

.page-intro h1,
.prose-card h2 {
  margin: 0 0 12px;
  letter-spacing: -0.04em;
}

.page-intro p,
.prose-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.prose-card p + p {
  margin-top: 14px;
}

@media (max-width: 980px) {
  .hero,
  .content-grid,
  .site-footer {
    grid-template-columns: 1fr;
    display: grid;
  }

  .site-footer {
    justify-content: initial;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 20px, 1220px);
    padding-top: 10px;
  }

  .hero,
  .tool-nav,
  .tool-card,
  .sidebar-card,
  .site-footer,
  .page-intro,
  .prose-card {
    padding: 18px;
    border-radius: 22px;
  }

  .site-nav {
    border-radius: 24px;
    align-items: start;
    flex-direction: column;
  }

  .tool-grid,
  .stacked-mobile,
  .card-header {
    grid-template-columns: 1fr;
  }

  .card-header {
    display: grid;
  }

  .hero-copy h1 {
    max-width: 100%;
  }
}