@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=DM+Mono:wght@400;500&display=swap");

:root {
  --bg: #f7f4ec;
  --bg-alt: #efe7d8;
  --text: #1f2732;
  --muted: #5f6975;
  --card: #fffaf0;
  --line: rgba(31, 39, 50, 0.14);
  --accent: #0f8b8d;
  --accent-soft: #a2d9d0;
  --highlight: #f4a259;
  --shadow: 0 16px 48px rgba(13, 21, 33, 0.08);
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Space Grotesk", sans-serif;
  background: linear-gradient(180deg, var(--bg), var(--bg-alt));
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

.ambient {
  position: fixed;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  filter: blur(48px);
  opacity: 0.35;
  z-index: -1;
}

.ambient-left {
  background: var(--accent-soft);
  top: -8rem;
  left: -10rem;
  animation: float 11s ease-in-out infinite;
}

.ambient-right {
  background: #ffd8b3;
  right: -8rem;
  bottom: -8rem;
  animation: float 14s ease-in-out infinite reverse;
}

.site-header {
  width: min(1100px, 92vw);
  margin: 1.4rem auto 0;
  padding: 0.7rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  backdrop-filter: blur(6px);
  background: rgba(255, 250, 240, 0.62);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.top-nav {
  display: flex;
  gap: 0.9rem;
}

.top-nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 0.35rem 0.65rem;
  border-radius: 0.5rem;
}

.top-nav a:hover {
  background: rgba(15, 139, 141, 0.12);
}

main {
  width: min(1100px, 92vw);
  margin: 2rem auto 4rem;
  display: grid;
  gap: 1.2rem;
}

.hero,
.panel {
  border: 1px solid var(--line);
  border-radius: 1.1rem;
  background: rgba(255, 250, 240, 0.85);
  box-shadow: var(--shadow);
  animation: rise 0.55s ease both;
}

.hero {
  padding: clamp(1.3rem, 3vw, 2.4rem);
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  font-weight: 700;
}

h1 {
  margin: 0.55rem 0 0.6rem;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.08;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  max-width: 62ch;
}

.cta-row {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.btn {
  border: 1px solid transparent;
  border-radius: 0.72rem;
  padding: 0.62rem 0.95rem;
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-family: inherit;
}

.btn-primary {
  background: var(--text);
  color: #fff;
}

.btn-primary:hover {
  background: #131a22;
}

.btn-ghost {
  border-color: var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.6);
}

.btn-ghost:hover {
  border-color: rgba(15, 139, 141, 0.6);
}

.stats {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
}

.stats div {
  background: rgba(15, 139, 141, 0.08);
  border: 1px solid rgba(15, 139, 141, 0.22);
  padding: 0.8rem;
  border-radius: 0.75rem;
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

.panel {
  padding: clamp(1rem, 2.4vw, 1.7rem);
}

h2 {
  margin: 0;
  font-size: 1.35rem;
}

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

.field-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.7rem;
}

.field-grid article {
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.65);
}

.field-grid h3 {
  margin: 0;
  font-size: 0.95rem;
}

.field-grid p {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

code,
pre {
  font-family: "DM Mono", monospace;
}

.code-block {
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  overflow: hidden;
}

.code-head {
  padding: 0.65rem 0.8rem;
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.btn-copy {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: #fff;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
  font-family: inherit;
}

.btn-copy:hover {
  border-color: rgba(15, 139, 141, 0.6);
}

pre {
  margin: 0;
  padding: 0.9rem;
  background: #1d2430;
  color: #ecf2ff;
  font-size: 0.84rem;
  overflow: auto;
  line-height: 1.4;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  border-radius: 0.6rem;
  padding: 0.6rem 0.7rem;
  font: inherit;
  color: inherit;
}

label {
  display: grid;
  gap: 0.35rem;
  font-weight: 500;
  font-size: 0.9rem;
}

input:focus {
  outline: 2px solid rgba(15, 139, 141, 0.35);
  border-color: rgba(15, 139, 141, 0.8);
}

.result-wrap {
  margin-top: 0;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.result-head {
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.site-footer {
  width: min(1100px, 92vw);
  margin: 0 auto 2.5rem;
  color: var(--muted);
  font-size: 0.92rem;
  text-align: center;
}

.site-footer a {
  color: inherit;
}

@media (max-width: 960px) {
  .field-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .site-header {
    flex-direction: column;
    gap: 0.7rem;
  }

  .top-nav {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

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

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

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

@keyframes float {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, 14px, 0);
  }
}

.playground-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-top: 1rem;
}

.playground-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

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

.submit-standalone {
  width: 100%;
}

.submit-standalone:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.btn-loading {
  display: inline;
}

#resultBox {
  min-height: 240px;
  max-height: 400px;
  overflow: auto;
}

@media (max-width: 1024px) {
  .playground-container {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 620px) {
  .playground-container {
    gap: 0.9rem;
  }

  #resultBox {
    min-height: 200px;
    max-height: 300px;
  }
}