:root {
  --bg: #f4f5f0;
  --panel: rgba(255, 255, 255, 0.84);
  --ink: #1e2a2f;
  --ink-soft: #4d6169;
  --line: #d2d8da;
  --accent: #0f766e;
  --accent-ink: #ffffff;
  --warn: #b03a2e;
  --shadow: 0 16px 42px rgba(25, 44, 56, 0.12);
  --radius: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Sora", "Avenir Next", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 18%, rgba(15, 118, 110, 0.14), transparent 38%),
    radial-gradient(circle at 90% 10%, rgba(223, 104, 62, 0.13), transparent 36%),
    linear-gradient(150deg, #f8f8f5, #e9eeef);
  position: relative;
  overflow-x: hidden;
}

.ambient {
  position: fixed;
  border-radius: 999px;
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

.ambient-a {
  width: 260px;
  height: 260px;
  top: -68px;
  right: -40px;
  background: rgba(15, 118, 110, 0.2);
}

.ambient-b {
  width: 320px;
  height: 320px;
  bottom: -130px;
  left: -86px;
  background: rgba(223, 104, 62, 0.2);
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(1080px, 92vw);
  margin: 3rem auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  animation: rise-in 360ms ease-out;
}

.hero {
  padding: 0.6rem 0.2rem;
}

.eyebrow {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-family: "IBM Plex Mono", "Menlo", "Consolas", monospace;
  color: var(--ink-soft);
}

h1 {
  margin: 0.45rem 0 0.55rem;
  font-size: clamp(1.65rem, 1.35rem + 1.4vw, 2.3rem);
  line-height: 1.1;
}

.hero-copy {
  margin: 0;
  max-width: 58ch;
  color: var(--ink-soft);
}

.hosting-note {
  margin: 0.72rem 0 0;
  max-width: 68ch;
  padding: 0.62rem 0.72rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(15, 118, 110, 0.26);
  background: rgba(15, 118, 110, 0.08);
  color: #0b4f4f;
  font-size: 0.86rem;
  line-height: 1.45;
}

.panel {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius);
  padding: 1.15rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

h2 {
  margin: 0 0 0.9rem;
  font-size: 1.1rem;
}

label {
  display: block;
  margin-bottom: 0.38rem;
  font-size: 0.88rem;
  font-weight: 600;
}

input {
  width: 100%;
  padding: 0.72rem 0.78rem;
  margin-bottom: 0.92rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font: inherit;
  color: var(--ink);
  background: #ffffff;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.18);
}

.grid-three {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
}

.hint {
  margin: 0.2rem 0 1rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.64rem;
}

button,
.preview-actions a {
  border: none;
  border-radius: 999px;
  padding: 0.72rem 1rem;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

button {
  color: var(--accent-ink);
  background: linear-gradient(135deg, #0f766e, #116466);
  transition: transform 120ms ease, opacity 120ms ease;
}

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

button:disabled {
  opacity: 0.72;
  cursor: wait;
  transform: none;
}

button.ghost {
  color: var(--ink);
  background: #edf2f3;
}

.status {
  margin: 0 0 0.4rem;
  color: var(--ink-soft);
}

.status.success {
  color: #0f766e;
}

.status.loading {
  color: #0b5560;
}

.status.error {
  color: var(--warn);
}

.rate-limit {
  margin: 0 0 0.8rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.error {
  margin: 0 0 0.9rem;
  border-radius: var(--radius-sm);
  padding: 0.68rem 0.78rem;
  background: rgba(176, 58, 46, 0.11);
  color: #85281f;
  font-size: 0.9rem;
}

.preview-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #ffffff;
  padding: 0.68rem;
}

#preview {
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid #e4e8ea;
  background: repeating-linear-gradient(
    -45deg,
    #f7f9f9,
    #f7f9f9 8px,
    #eef2f3 8px,
    #eef2f3 16px
  );
}

.preview-actions {
  margin-top: 0.65rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.preview-actions a {
  background: #edf2f3;
  color: var(--ink);
}

.preview-meta,
.empty-state {
  margin: 0.72rem 0 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

@media (min-width: 900px) {
  .app-shell {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 1rem;
  }

  .hero {
    grid-column: 1 / -1;
  }

  .grid-three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}