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

:root {
  --bg: #f0f2f5;
  --surface: #ffffff;
  --border: #e0e3e8;
  --text: #1a1c1e;
  --text-muted: #6b7280;
  --primary: #5865F2;
  --primary-hover: #4752c4;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --success: #22c55e;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

html { font-size: 15px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

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

/* Login */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px;
  text-align: center;
  max-width: 380px;
  width: 100%;
  margin: 40px 16px;
}

.login-icon { margin-bottom: 16px; }

.login-card h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.login-desc {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: .9rem;
}

/* Header */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-left h1 {
  font-size: 1.2rem;
  font-weight: 700;
}

.header-icon {
  display: flex;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: var(--text-muted);
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
}

/* Container */
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px 16px;
}

/* Card */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 20px;
}

.card h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

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

.card-header h2 { margin-bottom: 0; }

/* Form */
.form { margin-bottom: 16px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .03em;
}

.form-group input,
.form-group select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .9rem;
  font-family: var(--font);
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border-color .15s;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--primary);
}

.input-row {
  display: flex;
  gap: 4px;
}

.input-row input { flex: 1; }

.form-actions {
  margin-top: 14px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border: none;
  border-radius: 6px;
  font-size: .9rem;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  transition: background .15s, opacity .15s;
  text-decoration: none;
}

.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover:not(:disabled) {
  background: var(--danger-hover);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-outline:hover:not(:disabled) {
  background: var(--bg);
}

.btn-discord {
  background: #5865F2;
  color: #fff;
  font-size: 1rem;
  padding: 12px 24px;
  width: 100%;
  justify-content: center;
}
.btn-discord:hover { background: #4752c4; }

.btn-sm { padding: 4px 10px; font-size: .8rem; }

.btn-lg { padding: 12px 28px; font-size: 1rem; }

/* Table */
.table-wrap {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}

.table th {
  text-align: left;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  padding: 8px 12px;
  border-bottom: 2px solid var(--border);
}

.table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.table tbody tr:hover {
  background: var(--bg);
}

.table code {
  font-size: .85rem;
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Preview */
.preview {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg);
  border-radius: 6px;
  margin-top: 8px;
}

.preview img {
  width: 32px;
  height: 32px;
  image-rendering: pixelated;
  border-radius: 4px;
}

.preview span {
  font-size: .85rem;
  color: var(--text-muted);
}

/* Badge */
.badge {
  display: inline-block;
  padding: 2px 10px;
  font-size: .8rem;
  font-weight: 600;
  background: var(--bg);
  border-radius: 12px;
  color: var(--text-muted);
}

/* Build result */
.build-result {
  margin-top: 16px;
  padding: 16px;
  background: var(--bg);
  border-radius: 6px;
}

.result-block {
  margin-bottom: 10px;
}

.result-block:last-child { margin-bottom: 0; }

.result-block label {
  display: block;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.result-block code {
  display: block;
  font-size: .85rem;
  word-break: break-all;
  background: var(--surface);
  padding: 6px 10px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.code.sha {
  font-size: .75rem;
}

/* Alerts */
#alerts {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.alert {
  padding: 10px 16px;
  border-radius: 6px;
  font-size: .85rem;
  box-shadow: var(--shadow);
  animation: slideIn .2s ease;
}

.alert-success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.text-muted { color: var(--text-muted); font-size: .85rem; }
.hidden { display: none !important; }

/* Responsive */
@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .header {
    padding: 0 12px;
  }

  .card {
    padding: 16px;
  }

  .container {
    padding: 12px 8px;
  }
}