:root {
  --bg: #f5f1e8;
  --surface: #fffdf8;
  --surface-alt: #f0e9dc;
  --text: #1e1b16;
  --muted: #5b5449;
  --accent: #1f6f8b;
  --accent-dark: #17586f;
  --success: #2a7a38;
  --danger: #a62c2c;
  --border: #d8cfbf;
  --shadow: 0 8px 18px rgba(30, 27, 22, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 0%, #fdfaf3 0%, transparent 35%),
    radial-gradient(circle at 80% 100%, #e6f3f8 0%, transparent 40%),
    var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background: linear-gradient(120deg, #638721, #adba4d);
  color: #f9f7f2;
  padding: 1rem;
  box-shadow: var(--shadow);
}

.header-inner {
  width: min(1100px, 92%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  margin: 0;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.nav-link,
button.nav-link {
  text-decoration: none;
  border: 1px solid rgba(20, 46, 116, 0.4);
  color: #19397a;
  background: rgba(255, 255, 255, 0.08);
  padding: 0.4rem 0.7rem;
  border-radius: 0.45rem;
  font-size: 0.95rem;
  cursor: pointer;
}

.nav-link:hover,
button.nav-link:hover {
  background: rgba(255, 255, 255, 0.22);
}

main {
  width: min(1100px, 92%);
  margin: 1.2rem auto;
  flex: 1;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  box-shadow: var(--shadow);
  padding: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  padding: 1rem;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.55rem;
}

form {
  display: grid;
  gap: 0.8rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-weight: 600;
}

input,
button,
textarea,
select {
  font: inherit;
}

input,
textarea,
select {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.55rem 0.65rem;
  background: #fff;
}

button.primary {
  border: 0;
  background: var(--accent);
  color: #fff;
  padding: 0.65rem 0.85rem;
  border-radius: 0.5rem;
  cursor: pointer;
  font-weight: 700;
}

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

button.secondary {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  padding: 0.55rem 0.75rem;
  border-radius: 0.5rem;
  cursor: pointer;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

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

.status {
  margin: 0.75rem 0;
  padding: 0.6rem 0.7rem;
  border-radius: 0.5rem;
  font-weight: 600;
}

.status.error {
  background: #fae3e3;
  color: var(--danger);
  border: 1px solid #e8b4b4;
}

.status.success {
  background: #e4f4e6;
  color: var(--success);
  border: 1px solid #b7dbbd;
}

.file-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.file-links a {
  text-decoration: none;
  color: var(--accent-dark);
  border-bottom: 1px dashed var(--accent-dark);
}

.preview-frame {
  width: 100%;
  min-height: 460px;
  border: 1px solid var(--border);
  border-radius: 0.7rem;
  background: #fff;
}

.preview-text {
  white-space: pre-wrap;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 0.7rem;
  padding: 1rem;
  max-height: 460px;
  overflow: auto;
}

footer {
  margin-top: 1rem;
  background: #f0e9dc;
  border-top: 1px solid var(--border);
  padding: 0.8rem 1rem;
}

.footer-inner {
  width: min(1100px, 92%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--accent-dark);
  text-decoration: none;
}

.auth-wrap {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .preview-frame {
    min-height: 320px;
  }
}