:root {
  /* OllaDNS Brand Colors */
  --color-primary: #DA291C;
  --color-primary-dark: #8E1A12;
  --color-primary-light: #FCDAD5;
  --color-bg-base: #0D1117;
  --color-bg-surface: #161B22;
  --color-text-main: #E6EDF3;
  --color-text-muted: #8B949E;
  
  /* Layout Constants */
  --border-radius: 12px;
  --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--color-bg-base);
  color: var(--color-text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header / Navbar */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 5%;
  background: rgba(13, 17, 23, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
}

nav a {
  color: var(--color-text-main);
  text-decoration: none;
  margin-left: 24px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

nav a:hover {
  color: var(--color-primary);
}

/* Main Container */
main {
  flex: 1;
  padding: 4rem 5%;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

/* Hero Section */
.hero {
  text-align: center;
  margin-bottom: 4rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.1;
  background: linear-gradient(180deg, #FFFFFF 0%, rgba(255, 255, 255, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--color-primary), #FF5B4F);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  max-width: 700px;
  margin: 0 auto 2rem;
}

/* Glassmorphism Cards */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
  margin-bottom: 4rem;
}

.card {
  background: rgba(22, 27, 34, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius);
  padding: 2rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0;
  transition: var(--transition-smooth);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border-color: rgba(218, 41, 28, 0.3);
}

.card:hover::before {
  opacity: 1;
}

.card h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 12px;
}

.card h2 svg {
  color: var(--color-primary);
}

/* API Tester Form */
.api-tester {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.input-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

input, textarea {
  background: #010409;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--color-text-main);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition-smooth);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(218, 41, 28, 0.2);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.btn {
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(218, 41, 28, 0.4);
}

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

/* Response Area */
.response-area {
  background: #010409;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 16px;
  min-height: 150px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  overflow-x: auto;
  white-space: pre-wrap;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem 5%;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Loading animation for API */
.loader {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
}