:root {
  --bg: #f3efe6;
  --bg-deep: #e8e1d4;
  --ink: #14201c;
  --ink-soft: #3d4f47;
  --muted: #6b7a72;
  --forest: #1a4d3e;
  --forest-deep: #10362c;
  --leaf: #c4f082;
  --leaf-ink: #1f3d18;
  --paper: #fffcf7;
  --line: rgba(20, 32, 28, 0.12);
  --shadow: 0 24px 60px rgba(20, 32, 28, 0.12);
  --radius: 18px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(196, 240, 130, 0.35), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(26, 77, 62, 0.12), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 20;
  padding: 0.6rem 1rem;
  background: var(--forest);
  color: #fff;
  border-radius: 999px;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.top,
main,
.footer {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.top {
  display: flex;
  align-items: center;
  padding: 1.4rem 0 0.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.75rem;
  background: var(--forest);
  color: var(--leaf);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.45rem;
  color: var(--forest-deep);
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
  min-height: calc(100svh - 5.5rem);
  padding: 1.5rem 0 2.5rem;
}

.hero-copy h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--forest-deep);
}

.lede {
  margin: 0 0 1.6rem;
  max-width: 34ch;
  color: var(--ink-soft);
  font-size: 1.15rem;
}

.lede code,
.steps code,
.faq code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  padding: 0.1em 0.35em;
  border-radius: 0.35em;
  background: rgba(26, 77, 62, 0.08);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.25rem;
}

.hero-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.75rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

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

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--forest);
  color: #f7fff0;
  box-shadow: 0 10px 28px rgba(26, 77, 62, 0.28);
}

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

.btn-ghost {
  background: rgba(255, 252, 247, 0.55);
  border-color: var(--line);
  color: var(--ink);
}

.btn-ghost:hover {
  background: var(--paper);
  border-color: rgba(26, 77, 62, 0.28);
}

.btn-lg {
  width: 100%;
  padding: 1rem 1.4rem;
  font-size: 1.05rem;
}

.btn:disabled {
  opacity: 0.65;
  cursor: wait;
  transform: none;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  animation: rise 0.9s ease both;
}

.sheet {
  width: min(220px, 42vw);
  min-height: 260px;
  padding: 1.1rem;
  border-radius: 1.1rem;
  background: var(--paper);
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}

.sheet-md {
  transform: rotate(-4deg);
  animation: float-a 5.5s ease-in-out infinite;
}

.sheet-pdf {
  transform: rotate(3.5deg);
  background: linear-gradient(180deg, #fff 0%, #f4f7f2 100%);
  animation: float-b 6s ease-in-out infinite;
}

.sheet-label {
  display: inline-block;
  margin-bottom: 0.9rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--leaf);
  color: var(--leaf-ink);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
}

.sheet-md pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--ink-soft);
  white-space: pre-wrap;
}

.sheet-arrow {
  font-size: 1.6rem;
  color: var(--forest);
  font-weight: 700;
  animation: pulse 2.4s ease-in-out infinite;
}

.pdf-lines {
  display: grid;
  gap: 0.65rem;
  padding-top: 0.4rem;
}

.pdf-lines span {
  display: block;
  height: 10px;
  border-radius: 999px;
  background: rgba(26, 77, 62, 0.12);
}

.pdf-lines .pdf-title {
  width: 72%;
  height: 14px;
  background: rgba(26, 77, 62, 0.28);
}

.pdf-lines .short {
  width: 48%;
}

.converter,
.how,
.faq {
  margin-bottom: 3.5rem;
}

.converter {
  padding: 1.5rem;
  border-radius: calc(var(--radius) + 6px);
  background: rgba(255, 252, 247, 0.72);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.converter-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.converter h2,
.how h2,
.faq h2 {
  margin: 0 0 1.2rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  letter-spacing: -0.02em;
  color: var(--forest-deep);
}

.converter-head h2 {
  margin: 0;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.workspace {
  display: grid;
  gap: 1rem;
}

.field-label {
  font-weight: 600;
  color: var(--ink-soft);
}

#markdown-input {
  width: 100%;
  min-height: 320px;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.55;
  resize: vertical;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

#markdown-input:focus {
  border-color: rgba(26, 77, 62, 0.45);
  box-shadow: 0 0 0 4px rgba(196, 240, 130, 0.35);
}

.options {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 0.9rem;
}

.option {
  display: grid;
  gap: 0.4rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.option input,
.option select {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-weight: 500;
}

.option input:focus,
.option select:focus {
  outline: none;
  border-color: rgba(26, 77, 62, 0.45);
  box-shadow: 0 0 0 4px rgba(196, 240, 130, 0.35);
}

.status {
  min-height: 1.4em;
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.status.error {
  color: #8a2f2f;
}

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

.how h2,
.faq h2 {
  margin-bottom: 1.4rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  position: relative;
  padding: 1.3rem 1.2rem 1.2rem;
  border-radius: var(--radius);
  background: rgba(255, 252, 247, 0.55);
  border: 1px solid var(--line);
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  display: inline-grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  margin-bottom: 0.8rem;
  border-radius: 999px;
  background: var(--forest);
  color: var(--leaf);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
}

.steps strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1.05rem;
}

.steps span {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.faq-list {
  display: grid;
  gap: 0.7rem;
}

.faq details {
  padding: 0.2rem 1.1rem;
  border-radius: 14px;
  background: rgba(255, 252, 247, 0.55);
  border: 1px solid var(--line);
}

.faq summary {
  padding: 0.95rem 0;
  cursor: pointer;
  font-weight: 650;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  float: right;
  color: var(--forest);
  font-weight: 700;
}

.faq details[open] summary::after {
  content: "–";
}

.faq details p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

.footer {
  padding: 0 0 2.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer p {
  margin: 0.2rem 0;
}

.footer strong {
  color: var(--forest-deep);
}

.pdf-render {
  position: fixed;
  left: 0;
  top: 0;
  width: 794px;
  padding: 0;
  background: #fff;
  color: #111;
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.55;
  pointer-events: none;
  z-index: -1;
  /* Keep in layout for html2canvas; sits behind the page while rendering */
}

.pdf-render h1,
.pdf-render h2,
.pdf-render h3,
.pdf-render h4 {
  line-height: 1.25;
  margin: 1.2em 0 0.5em;
}

.pdf-render h1 { font-size: 1.8rem; }
.pdf-render h2 { font-size: 1.45rem; }
.pdf-render h3 { font-size: 1.2rem; }

.pdf-render p,
.pdf-render ul,
.pdf-render ol,
.pdf-render pre,
.pdf-render blockquote,
.pdf-render table {
  margin: 0 0 0.9em;
}

.pdf-render code {
  font-family: "Courier New", monospace;
  font-size: 0.92em;
}

.pdf-render pre {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  background: #f4f4f4;
  overflow: hidden;
  white-space: pre-wrap;
}

.pdf-render blockquote {
  margin-left: 0;
  padding-left: 1rem;
  border-left: 3px solid #bbb;
  color: #444;
}

.pdf-render table {
  width: 100%;
  border-collapse: collapse;
}

.pdf-render th,
.pdf-render td {
  border: 1px solid #ddd;
  padding: 0.4rem 0.55rem;
  text-align: left;
}

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

.pdf-render a {
  color: #0b57d0;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float-a {
  0%, 100% { transform: rotate(-4deg) translateY(0); }
  50% { transform: rotate(-4deg) translateY(-8px); }
}

@keyframes float-b {
  0%, 100% { transform: rotate(3.5deg) translateY(0); }
  50% { transform: rotate(3.5deg) translateY(7px); }
}

@keyframes pulse {
  0%, 100% { opacity: 0.45; transform: translateX(0); }
  50% { opacity: 1; transform: translateX(3px); }
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 1rem;
    gap: 2rem;
  }

  .hero-visual {
    order: -1;
    min-height: 280px;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .options {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .sheet {
    width: min(150px, 38vw);
    min-height: 200px;
    padding: 0.85rem;
  }

  .sheet-md pre {
    font-size: 0.68rem;
  }

  .hero-copy h1 {
    font-size: clamp(2.2rem, 11vw, 3rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-visual,
  .sheet-md,
  .sheet-pdf,
  .sheet-arrow,
  .btn {
    animation: none !important;
    transition: none !important;
  }
}