@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg-gradient-start: #eff6ff;
  --bg-gradient-end: #f8fafc;
  --card-bg: #ffffff;
  --card-border: #e2e8f0;
  --card-shadow: 0 10px 30px -5px rgba(37, 99, 235, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #dbeafe;
  --primary-dark: #1e40af;
  --secondary-bg: #f1f5f9;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --success-bg: #ecfdf5;
  --success-border: #a7f3d0;
  --success-text: #047857;
  --error-bg: #fef2f2;
  --error-border: #fecaca;
  --error-text: #b91c1c;
  --badge-blue-bg: #e0f2fe;
  --badge-blue-text: #0369a1;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font);
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  color: var(--text-main);
  min-height: 100vh;
  padding: 2rem 1rem;
  line-height: 1.5;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

/* Header */
.header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, #2563eb, #0284c7);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 8px 16px -4px rgba(37, 99, 235, 0.3);
}

.brand h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
}

.brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.balance-card {
  background: #ffffff;
  border: 1px solid #bfdbfe;
  padding: 0.6rem 1.25rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
}

.balance-card .label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.balance-card .value {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-dark);
}

/* Main Grid Layout */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
}

@media (max-width: 900px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

/* Cards */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--card-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

/* Forms */
.form-group {
  margin-bottom: 1.1rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-label span.req {
  color: #ef4444;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid #cbd5e1;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  background-color: #f8fafc;
  color: var(--text-main);
  transition: all 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  background-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.btn-primary {
  width: 100%;
  padding: 0.85rem 1.5rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  transition: all 0.2s ease;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover), var(--primary-dark));
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  padding: 0.4rem 0.75rem;
  background: var(--primary-light);
  color: var(--primary-dark);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease;
}

.btn-secondary:hover {
  background: #bfdbfe;
}

/* Status Box */
.status-box {
  padding: 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  border: 1px solid transparent;
}

.status-box.success {
  background-color: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
}

.status-box.error {
  background-color: var(--error-bg);
  border-color: var(--error-border);
  color: var(--error-text);
}

.status-header {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-details {
  font-size: 0.875rem;
  line-height: 1.6;
}

/* Code Snippet Box */
.code-box {
  background: #0f172a;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.85rem;
  overflow-x: auto;
  position: relative;
  margin-top: 0.5rem;
  word-break: break-all;
}

/* URL Generator Section */
.url-preview-wrapper {
  margin-top: 1.5rem;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.url-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

/* Table */
.full-width {
  grid-column: 1 / -1;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  text-align: left;
}

.data-table th {
  background-color: #f1f5f9;
  color: var(--text-muted);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid #e2e8f0;
}

.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid #e2e8f0;
  color: var(--text-main);
}

.data-table tr:hover {
  background-color: #f8fafc;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-success {
  background-color: #d1fae5;
  color: #065f46;
}

.badge-error {
  background-color: #fee2e2;
  color: #991b1b;
}

/* Footer */
.footer {
  margin-top: 3rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}