:root {
  --bg-1: #f5f1ea;
  --bg-2: #efe6d5;
  --surface: #ffffff;
  --surface-2: #f6efe4;
  --text: #222222;
  --muted: #5b5247;
  --border: #dfd2c1;
  --accent: #d44c2b;
  --accent-2: #2b7a78;
  --shadow: 0 24px 60px rgba(20, 16, 11, 0.18);
  --glow: 0 0 0 2px rgba(212, 76, 43, 0.15);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-1: #0d0f12;
    --bg-2: #161a20;
    --surface: #12151b;
    --surface-2: #161b22;
    --text: #f0ede8;
    --muted: #b5aca0;
    --border: #2a3240;
    --accent: #f2a640;
    --accent-2: #4cc9a6;
    --shadow: 0 30px 80px rgba(2, 4, 8, 0.6);
    --glow: 0 0 0 2px rgba(242, 166, 64, 0.2);
  }
}

html[data-theme="light"] {
  --bg-1: #f5f1ea;
  --bg-2: #efe6d5;
  --surface: #ffffff;
  --surface-2: #f6efe4;
  --text: #222222;
  --muted: #5b5247;
  --border: #dfd2c1;
  --accent: #d44c2b;
  --accent-2: #2b7a78;
  --shadow: 0 24px 60px rgba(20, 16, 11, 0.18);
  --glow: 0 0 0 2px rgba(212, 76, 43, 0.15);
}

html[data-theme="dark"] {
  --bg-1: #0d0f12;
  --bg-2: #161a20;
  --surface: #12151b;
  --surface-2: #161b22;
  --text: #f0ede8;
  --muted: #b5aca0;
  --border: #2a3240;
  --accent: #f2a640;
  --accent-2: #4cc9a6;
  --shadow: 0 30px 80px rgba(2, 4, 8, 0.6);
  --glow: 0 0 0 2px rgba(242, 166, 64, 0.2);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Sora", "Space Grotesk", "Avenir Next", sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 15% 10%, rgba(76, 201, 166, 0.2), transparent 60%),
    radial-gradient(900px 500px at 85% 10%, rgba(242, 166, 64, 0.18), transparent 60%),
    linear-gradient(145deg, var(--bg-1), var(--bg-2));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events: none;
  opacity: 0.4;
  z-index: 0;
}

.backdrop {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 28px 28px 36px;
  gap: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  animation: rise 0.7s ease both;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 20px;
  text-transform: uppercase;
  color: #0d0f12;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow);
}

.brand h1 {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.02em;
}

.brand p {
  margin: 4px 0 0;
  color: var(--muted);
}

.controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  animation: rise 0.7s ease 0.1s both;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 10px 18px;
  font-weight: 600;
  background: linear-gradient(120deg, var(--accent), #ff8451);
  color: #0f141c;
  cursor: pointer;
  box-shadow: var(--glow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(242, 166, 64, 0.35);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  box-shadow: 0 10px 24px rgba(15, 20, 28, 0.2);
}

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.toggle input {
  accent-color: var(--accent);
}

.repo {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  transition: border 0.2s ease, color 0.2s ease;
}

.repo:hover {
  color: var(--accent-2);
  border-color: var(--accent-2);
}

.split {
  display: grid;
  --split-left: 50%;
  grid-template-columns: minmax(260px, var(--split-left)) 12px minmax(
      260px,
      1fr
    );
  gap: 12px;
  flex: 1;
  min-height: 0;
  align-items: stretch;
}

.pane {
  display: flex;
  flex-direction: column;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  min-height: 0;
  animation: rise 0.7s ease 0.2s both;
}

.divider {
  position: relative;
  border-radius: 999px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.12), transparent);
  cursor: col-resize;
  margin: 10px 0;
  user-select: none;
  touch-action: none;
  transition: background 0.2s ease;
}

.divider::before {
  content: "";
  position: absolute;
  inset: 35% 2px;
  border-radius: 999px;
  background: rgba(242, 166, 64, 0.7);
  opacity: 0.65;
}

.divider.is-active {
  background: rgba(242, 166, 64, 0.2);
}

.pane__header {
  padding: 14px 18px;
  font-weight: 600;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}

textarea {
  flex: 1;
  width: 100%;
  resize: none;
  border: none;
  padding: 20px;
  font-size: 15px;
  line-height: 1.6;
  font-family: "JetBrains Mono", "Fira Code", "IBM Plex Mono", monospace;
  color: var(--text);
  background: transparent;
  outline: none;
}

.preview {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
  font-size: 16px;
  line-height: 1.7;
}

.preview h1,
.preview h2,
.preview h3 {
  margin-top: 0.2em;
  margin-bottom: 0.5em;
}

.preview h1 {
  font-size: 28px;
}

.preview h2 {
  font-size: 22px;
}

.preview p {
  margin: 0 0 1em;
}

.preview a {
  color: var(--accent-2);
}

.preview code {
  font-family: "JetBrains Mono", "Fira Code", "IBM Plex Mono", monospace;
  font-size: 0.9em;
  background: rgba(76, 201, 166, 0.15);
  padding: 2px 6px;
  border-radius: 6px;
}

.preview pre {
  background: #0d1117;
  color: #e6edf3;
  padding: 16px;
  border-radius: 12px;
  overflow: auto;
}

html[data-theme="dark"] .preview pre {
  background: #0c1118;
}

.preview pre code {
  background: transparent;
  padding: 0;
}

.preview blockquote {
  margin: 0 0 1em;
  padding: 12px 18px;
  border-left: 4px solid var(--accent);
  background: rgba(242, 166, 64, 0.12);
  border-radius: 10px;
}

.preview table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1em;
}

.preview th,
.preview td {
  border: 1px solid var(--border);
  padding: 8px 10px;
}

.preview img {
  max-width: 100%;
  border-radius: 12px;
}

.status {
  position: fixed;
  right: 28px;
  bottom: 28px;
  padding: 10px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}

.status.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .split {
    grid-template-columns: 1fr;
  }

  .divider {
    display: none;
  }

  .topbar {
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}