:root {
  --bg: #09090b;
  --card: rgba(24, 24, 27, 0.6);
  --text: #fafafa;
  --muted: #a1a1aa;
  --accent: #ef4444; /* Primary Red */
  --accent-hover: #dc2626; /* Darker Red on hover */
  --danger: #fb7185;
  --success: #34d399;
  --border: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: radial-gradient(circle at top, #3f1212 0%, var(--bg) 60%);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  width: min(1000px, 92vw);
  margin: 0 auto;
}

.header,
.footer,
.ideas-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.footer {
  padding: 2rem 0;
  font-size: 0.875rem;
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}

h1 {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
}
h2,
h3 {
  margin: 0;
  font-weight: 500;
}
p {
  margin: 0;
}
main {
  display: grid;
  gap: 1.5rem;
}

.card {
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -2px rgba(0, 0, 0, 0.1);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
}

.hero {
  text-align: center;
  padding: 3rem 1.5rem;
  background: linear-gradient(
    145deg,
    rgba(63, 18, 18, 0.4) 0%,
    var(--card) 100%
  );
}
.hero h2 {
  margin-bottom: 0.5rem;
  color: #fff;
}

.connection-grid,
.form-grid {
  display: grid;
  gap: 1rem;
}

label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.875rem;
  color: var(--text);
  font-weight: 500;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
  padding: 0.875rem;
  outline: none;
  transition: all 0.2s ease;
  font-family: inherit;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
  background: rgba(0, 0, 0, 0.4);
}

.btn {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.75rem 1.25rem;
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.3);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}
.btn-primary:disabled {
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
  box-shadow: none;
}

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover {
  border-color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
}

.status-stack {
  display: grid;
  gap: 0.4rem;
  margin-top: 0.5rem;
}
.status {
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.muted {
  color: var(--muted);
}
.success {
  color: var(--success);
}
.error {
  color: var(--danger);
}

.ideas-list {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.idea-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.02);
}

.idea-card h4 {
  margin: 0 0 0.5rem 0;
  font-size: 1.1rem;
}
.idea-card p {
  color: var(--muted);
  margin-bottom: 1rem;
}

.idea-meta {
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.idea-actions {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Challenge UI Styles */
.challenge-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.challenge-content {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.5rem;
  font-size: 0.9rem;
  color: #e4e4e7;
  overflow-x: auto;
}

.challenge-content h1,
.challenge-content h2,
.challenge-content h3 {
  color: var(--text);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.challenge-content h1:first-child,
.challenge-content h2:first-child {
  margin-top: 0;
}

.challenge-content a {
  color: var(--accent);
}

.challenge-content code {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.85em;
}

.challenge-content pre {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
}

.challenge-content pre code {
  background: transparent;
  padding: 0;
}

@media (max-width: 760px) {
  .header,
  .footer,
  .ideas-header {
    flex-direction: column;
    align-items: flex-start;
  }
}