:root {
  --primary: #00f0ff;
  --primary-dark: #00d1e0;
  --text: #e8e8e8;
  --background: #0a0a0a;
  --surface: #1a1a1a;
  --surface-hover: #2a2a2a;
  --border: #333333;
  --success: #00e676;
  --warning: #ffd600;
  --error: #ff1744;

  /* Section Colors */
  --blue: #2196f3;
  --green: #00e676;
  --purple: #9c27b0;
  --yellow: #ffd600;
  --red: #ff1744;

  --spacing: 0.25rem;
}

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

body {
  font-family: "Satoshi", sans-serif;
  background-color: var(--background);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header Styles */
header {
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

header h1 {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--primary) 0%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.25rem;
}

header p {
  font-size: 0.9rem;
  opacity: 0.8;
}

nav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
}

nav a {
  color: var(--text);
  text-decoration: none;
  position: relative;
  padding: 0.5rem 0;
}

nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

nav a:hover::after,
nav a.active::after {
  width: 100%;
}

/* Main Content */
main {
  flex: 1;
  padding: 3rem 0;
}

.card {
  background-color: var(--surface);
  border-radius: 12px;
  padding: 2rem;
  margin: 2rem 0 2rem 0;
  border: 1px solid var(--border);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#resource-form {
  margin-top: 2rem;
}

/* Form Sections */
.form-section {
  background-color: var(--surface);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.form-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: currentColor;
  opacity: 0.8;
}

.section-blue {
  color: var(--blue);
}
.section-green {
  color: var(--green);
}
.section-purple {
  color: var(--purple);
}
.section-yellow {
  color: var(--yellow);
}
.section-red {
  color: var(--red);
}

.section-title {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  padding-left: 1rem;
}

/* Form Elements */
label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text);
}

input,
textarea,
select {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--surface-hover);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
}

.helper-text {
  font-size: 0.875rem;
  opacity: 0.8;
  margin-top: 0.5rem;
}

/* Grid Layout */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}
.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.mt-2 {
  margin-top: calc(var(--spacing) * 4);
}

.mt-3 {
  margin-top: calc(var(--spacing) * 4);
}

.mt-4 {
  margin-top: calc(var(--spacing) * 4);
}

.mb-4 {
  margin-top: calc(var(--spacing) * 4);
}
/* Checkbox Group */
.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 0.5rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: auto;
  accent-color: var(--primary);
}

/* Buttons */
.btn-group {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--background);
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background-color: var(--surface-hover);
  border-color: var(--primary);
}

/* Success Message */
.success-message {
  background-color: var(--surface);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  border: 1px solid var(--success);
}

.success-icon {
  color: var(--success);
  font-size: 3rem;
  margin-bottom: 1rem;
}

.success-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--success);
}

.success-text {
  max-width: 600px;
  margin: 0 auto;
}

.success-links {
  margin-top: 1.5rem;
}

.success-link {
  color: var(--primary);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.success-link:hover {
  opacity: 0.8;
}

/* Footer */
footer {
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  padding: 3rem 0 1rem 0;
  margin-top: auto;
}

footer a {
  color: var(--text);
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

footer a:hover {
  opacity: 1;
  color: var(--primary);
}

.footer-border {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  padding-top: 2rem;
  text-align: center;
  opacity: 0.6;
}

/* Utility Classes */
.flex {
  display: flex;
}

.justify-between {
  justify-content: space-between;
}

.items-center {
  align-items: center;
}

.hidden {
  display: none;
}

/* Loading Spinner */
.loading-spinner {
  animation: spin 1s linear infinite;
  display: none;
}

.loading .loading-spinner {
  display: inline-block;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Required Fields */
.required-notice {
  color: var(--error);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  header .flex {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  nav ul {
    justify-content: center;
  }

  .grid {
    grid-template-columns: 1fr !important;
  }

  .form-section {
    padding: 1.5rem;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn-group button {
    width: 100%;
  }
}