:root {
  --bg-canvas: #0b0f17;
  --bg-surface: #131924;
  --bg-surface-elevated: #1a2332;
  --border-subtle: #202b3d;
  --border-strong: #2e3e57;
  
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --color-brand: #2563eb;
  --color-brand-hover: #1d4ed8;
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.5;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

.layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.brand-symbol {
  font-size: 20px;
  color: var(--color-brand);
}

.brand-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand-sub {
  font-size: 12px;
  color: var(--text-muted);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Main */
.main {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 20px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  flex: 1;
}

/* Views Visibility */
.view-section {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.is-hidden {
  display: none !important;
}

/* Hero */
.hero-block {
  text-align: center;
  padding: 24px 0 12px;
}

.hero-heading {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.hero-sub {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 8px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* Cards */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* Search Form */
.search-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.subdomain-affix {
  display: flex;
  align-items: center;
  background: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s ease;
}

.subdomain-affix:focus-within {
  border-color: var(--color-brand);
}

.subdomain-affix input {
  height: 44px;
  border: none;
  background: transparent;
  flex: 1;
  min-width: 0;
  padding: 0 14px;
  font-size: 15px;
  color: var(--text-primary);
  font-family: inherit;
  outline: none;
}

.affix-label {
  padding: 0 14px;
  font-size: 14px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  user-select: none;
  border-left: 1px solid var(--border-subtle);
}

.btn-large {
  height: 44px;
  font-size: 14px;
  width: 100%;
}

/* Result Box */
.result-box {
  margin-top: 20px;
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface-elevated);
}

.result-status {
  font-size: 14px;
  font-weight: 500;
}

.result-status.is-available {
  color: var(--color-success);
}

.result-status.is-taken {
  color: var(--color-error);
}

.result-status.is-reserved {
  color: var(--color-warning);
}

.claim-form {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.claim-meta p {
  font-size: 13px;
  color: var(--text-secondary);
}

.claim-inputs {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: flex-end;
}

/* User Dashboard Bar */
.dashboard-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}

.dashboard-tag {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.dashboard-domain {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* Forms Grid */
.user-form-grid {
  display: grid;
  grid-template-columns: 140px 140px 1fr 140px;
  gap: 14px;
  align-items: flex-end;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.input-group label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

input[type="text"],
input[type="password"],
select {
  height: 38px;
  padding: 0 12px;
  background: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease;
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
  border-color: var(--color-brand);
}

.form-footer {
  margin-top: 16px;
  display: flex;
  justify-content: flex-end;
}

/* Buttons */
.btn {
  height: 38px;
  padding: 0 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-brand);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--color-brand-hover);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-outline {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text-secondary);
}

.btn-outline:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
}

.btn-sm {
  height: 30px;
  padding: 0 10px;
  font-size: 12px;
}

.btn-danger-sm {
  height: 28px;
  padding: 0 8px;
  font-size: 11px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.btn-danger-sm:hover {
  color: var(--color-error);
  border-color: var(--color-error);
}

/* Spinner */
.spinner {
  display: none;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.btn.is-loading .btn-text {
  opacity: 0.8;
}

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

/* Table */
.table-header {
  align-items: center;
}

.table-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-input {
  height: 32px;
  width: 180px;
  font-size: 12px;
}

.table-responsive {
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.dns-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

.dns-table th {
  background: var(--bg-surface-elevated);
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
}

.dns-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.dns-table tbody tr:last-child td {
  border-bottom: none;
}

.dns-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.table-empty {
  text-align: center;
  padding: 28px !important;
  color: var(--text-muted);
}

/* Badges */
.type-badge {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
}

.type-A { color: #60a5fa; border-color: #1e3a8a; }
.type-CNAME { color: #f59e0b; border-color: #78350f; }
.type-TXT { color: #34d399; border-color: #064e3b; }

.record-name {
  font-weight: 500;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.record-content {
  font-family: var(--font-mono);
  font-size: 12px;
  word-break: break-all;
}

.proxy-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 3px;
  background: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
}

.proxy-pill.is-proxied {
  color: #f97316;
  border-color: #7c2d12;
}

.proxy-pill.is-dns-only {
  color: var(--text-muted);
}

/* Feedback Messages */
.feedback-msg {
  display: none;
  margin-top: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
}

.feedback-msg.is-success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.feedback-msg.is-error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

/* Modals */
.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(2px);
}

.modal-box {
  position: relative;
  width: 100%;
  max-width: 400px;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
}

.modal-close-btn:hover {
  color: var(--text-primary);
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  margin-top: auto;
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

/* Mobile responsive */
@media (max-width: 768px) {
  .user-form-grid {
    grid-template-columns: 1fr;
  }
  .claim-inputs {
    grid-template-columns: 1fr;
  }
  .card-header {
    flex-direction: column;
    align-items: stretch;
  }
  .table-controls {
    flex-direction: row;
    width: 100%;
  }
  .search-input {
    flex: 1;
  }
}