:root {
  --bg: #0a0e1a;
  --card-bg: rgba(20, 27, 45, 0.7);
  --card-border: rgba(148, 163, 184, 0.12);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #6366f1;
  --accent-2: #8b5cf6;
  --error: #fca5a5;
  --error-bg: rgba(248, 113, 113, 0.08);
  --error-border: rgba(248, 113, 113, 0.25);
  --success: #22d3ee;
  --input-bg: rgba(15, 23, 42, 0.55);
  --input-border: rgba(148, 163, 184, 0.15);
  --radius: 16px;
  --radius-sm: 10px;
}

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

html, body { height: 100%; }

body {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse at 15% 20%, rgba(99, 102, 241, 0.22), transparent 50%),
    radial-gradient(ellipse at 85% 70%, rgba(139, 92, 246, 0.18), transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(34, 211, 238, 0.10), transparent 60%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.card {
  width: 100%;
  max-width: 540px;
  background: var(--card-bg);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 1px 3px rgba(0, 0, 0, 0.12),
    0 30px 80px rgba(0, 0, 0, 0.35);
  animation: fadeUp 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

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

h1 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #fff 0%, #94a3b8 110%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  margin: 1.75rem 0 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

label {
  display: block;
  margin: 1rem 0 0.4rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

input, select {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.18s, box-shadow 0.18s, background 0.18s;
}

input:hover, select:hover {
  border-color: rgba(148, 163, 184, 0.28);
}

input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
  background: rgba(15, 23, 42, 0.8);
}

input::placeholder { color: var(--text-dim); }

select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%2394a3b8' d='M6 8L0 0h12z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 1.5rem;
  width: 100%;
  padding: 0.95rem 1rem;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff;
  border: 0;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.18s;
  box-shadow: 0 6px 18px rgba(99, 102, 241, 0.28);
}

button:hover, .btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(99, 102, 241, 0.4);
}

button:active, .btn:active { transform: translateY(0); }

.result-wrap {
  margin-top: 1.5rem;
  display: flex;
  justify-content: center;
  position: relative;
}
.result {
  flex: 0 0 auto;
  width: 100%;
  padding: 1rem 1.1rem;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.95rem;
  line-height: 1.55;
  white-space: nowrap;
  overflow-x: hidden;
  overflow-y: hidden;
  text-overflow: ellipsis;
  scrollbar-width: thin;
  scrollbar-color: rgba(99, 102, 241, 0.7) transparent;
  color: var(--success);
  user-select: all;
  cursor: text;
  position: relative;
  z-index: 1;
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1),
              border-color 0.25s, background 0.3s, box-shadow 0.35s;
}
.result::-webkit-scrollbar { height: 6px; }
.result::-webkit-scrollbar-track { background: transparent; }
.result::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.7);
  border-radius: 3px;
}
.result:hover {
  overflow-x: auto;
  text-overflow: clip;
  background: rgba(15, 23, 42, 0.95);
  border-color: rgba(99, 102, 241, 0.55);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.45);
  z-index: 10;
  transform: translateY(-1px);
}

.generator-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.generator-row input[type="range"] { flex: 1 1 auto; }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  padding: 0;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid var(--input-border);
  border-radius: 999px;
  cursor: pointer;
  outline: none;
  transition: border-color 0.18s, box-shadow 0.18s;
}
input[type="range"]:hover { border-color: rgba(148, 163, 184, 0.28); }
input[type="range"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  cursor: pointer;
  border: 0;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.5);
  transition: transform 0.15s;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.1); }
input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  cursor: pointer;
  border: 0;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.5);
}

.length-val {
  display: inline-block;
  min-width: 2.2ch;
  text-align: center;
  padding: 0.1rem 0.5rem;
  margin-left: 0.4rem;
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.22);
  border-radius: 6px;
  font-family: ui-monospace, monospace;
  font-size: 0.78rem;
  font-weight: 500;
}

.secondary-btn {
  margin: 0;
  width: auto;
  padding: 0.7rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 600;
  background: rgba(99, 102, 241, 0.12);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.32);
  box-shadow: none;
  white-space: nowrap;
  flex-shrink: 0;
}
.secondary-btn:hover {
  background: rgba(99, 102, 241, 0.22);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.22);
}
.secondary-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  background: rgba(148, 163, 184, 0.06);
  color: var(--text-dim);
  border-color: var(--input-border);
  box-shadow: none;
}
.secondary-btn:disabled:hover {
  background: rgba(148, 163, 184, 0.06);
  box-shadow: none;
  transform: none;
}

.error {
  margin-top: 1rem;
  padding: 0.75rem 0.9rem;
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  border-radius: var(--radius-sm);
  color: var(--error);
  font-size: 0.85rem;
}

.lang-switch {
  display: inline-flex;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--input-border);
  border-radius: 999px;
  padding: 3px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.lang-switch a {
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text-muted);
  transition: color 0.15s, background 0.15s;
}

.lang-switch a:hover { color: var(--text); }

.lang-switch a.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}

.top-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  transition: color 0.15s;
  display: inline-block;
}
.top-link:hover { color: var(--text); }

.server-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.server-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.18s;
}

.server-list li:hover {
  border-color: rgba(99, 102, 241, 0.35);
}

.meta { display: flex; flex-direction: column; gap: 0.25rem; min-width: 0; }
.meta .name {
  font-weight: 600;
  font-size: 0.95rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.meta .row2 {
  font-size: 0.72rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
  font-size: 0.68rem;
  font-weight: 500;
  border-radius: 5px;
  font-family: ui-monospace, monospace;
  border: 1px solid rgba(99, 102, 241, 0.22);
  letter-spacing: 0.02em;
}

.summary {
  font-family: ui-monospace, monospace;
  color: var(--text-dim);
  font-size: 0.7rem;
}

.actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-shrink: 0;
}
.actions a {
  color: #a5b4fc;
  text-decoration: none;
  font-size: 0.82rem;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  transition: background 0.15s;
}
.actions a:hover { background: rgba(99, 102, 241, 0.12); }

.ghost-btn, .danger-btn {
  margin: 0;
  width: auto;
  padding: 0.4rem 0.8rem;
  font-size: 0.78rem;
  background: transparent;
  border: 1px solid;
  box-shadow: none;
  font-weight: 500;
  border-radius: 8px;
}

.ghost-btn { border-color: var(--input-border); color: var(--text-muted); }
.ghost-btn:hover {
  background: rgba(148, 163, 184, 0.1);
  color: var(--text);
  transform: none;
  box-shadow: none;
}

.danger-btn { color: #f87171; border-color: rgba(248, 113, 113, 0.32); }
.danger-btn:hover {
  background: rgba(248, 113, 113, 0.12);
  transform: none;
  box-shadow: none;
}

.cancel-link {
  display: inline-block;
  margin-top: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
}
.cancel-link:hover { color: var(--text); }

.empty {
  padding: 1.25rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
  border: 1px dashed var(--input-border);
  border-radius: var(--radius-sm);
}
.empty a { color: #a5b4fc; text-decoration: none; font-weight: 500; }
.empty a:hover { text-decoration: underline; }

.help {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin: 0.55rem 0 0;
  line-height: 1.55;
}
.help code {
  background: rgba(15, 23, 42, 0.65);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.95em;
  color: #cbd5e1;
}

.optional {
  color: var(--text-dim);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.78em;
  margin-left: 0.35rem;
}

.pwd-row {
  position: relative;
}
.pwd-row input {
  width: 100%;
  padding-right: 3rem;
}
.pwd-copy-btn {
  position: absolute;
  top: 50%;
  right: 0.45rem;
  margin: 0;
  width: auto;
  padding: 0.4rem 0.55rem;
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.32);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: none;
  transform: translateY(-50%);
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.18s;
}
.pwd-copy-btn:hover {
  background: rgba(99, 102, 241, 0.28);
  border-color: rgba(99, 102, 241, 0.55);
  color: #c7d2fe;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.3);
  transform: translateY(-50%);
}
.pwd-copy-btn:active {
  transform: translateY(-50%);
}
.pwd-copy-btn[hidden] { display: none; }
.pwd-copy-btn svg { display: block; }

.result-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-top: 0.85rem;
}
.copy-btn       { grid-column: 1 / -1; grid-row: 1; }
.clear-clip-btn { grid-column: 1; grid-row: 2; }
.clear-btn      { grid-column: 2; grid-row: 2; }

.copy-toast {
  position: fixed;
  top: 1.75rem;
  left: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 197, 94, 0.95);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, -16px) scale(0.94);
  transition: opacity 0.25s, transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), background 0.18s, box-shadow 0.18s;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35), 0 6px 20px rgba(34, 197, 94, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
}
.copy-toast.show {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}
.copy-toast.toast-green {
  background: rgba(34, 197, 94, 0.95);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35), 0 6px 20px rgba(34, 197, 94, 0.45);
}
.copy-toast.toast-blue {
  background: rgba(59, 130, 246, 0.95);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35), 0 6px 20px rgba(59, 130, 246, 0.45);
}
.copy-toast.toast-indigo {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.95) 0%, rgba(139, 92, 246, 0.95) 100%);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35), 0 6px 20px rgba(99, 102, 241, 0.45);
}
.copy-toast.toast-red {
  background: rgba(239, 68, 68, 0.95);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35), 0 6px 20px rgba(239, 68, 68, 0.45);
}

.result-actions button {
  margin: 0;
  width: 100%;
  padding: 0.85rem 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  white-space: nowrap;
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: none;
  transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.18s, transform 0.15s;
}
.copy-btn {
  background: rgba(34, 197, 94, 0.15);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.45);
}
.copy-btn:hover {
  background: rgba(34, 197, 94, 0.25);
  box-shadow: 0 4px 14px rgba(34, 197, 94, 0.28);
}
.clear-clip-btn {
  background: rgba(56, 189, 248, 0.15);
  color: #7dd3fc;
  border: 1px solid rgba(56, 189, 248, 0.45);
}
.clear-clip-btn:hover {
  background: rgba(56, 189, 248, 0.25);
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.28);
}
.clear-btn {
  background: rgba(248, 113, 113, 0.15);
  color: #f87171;
  border: 1px solid rgba(248, 113, 113, 0.45);
}
.clear-btn:hover {
  background: rgba(248, 113, 113, 0.25);
  box-shadow: 0 4px 14px rgba(248, 113, 113, 0.28);
}

.site-footer {
  position: fixed;
  bottom: 0.9rem;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.03em;
  opacity: 0.65;
  pointer-events: none;
  z-index: 0;
  user-select: none;
  transition: opacity 0.2s;
}
.site-footer:hover { opacity: 1; }
.site-footer .name {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 600;
}
.site-footer .dot {
  margin: 0 0.4rem;
  color: var(--text-dim);
  opacity: 0.6;
}
.site-footer a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  pointer-events: auto;
  transition: color 0.15s;
}
.site-footer a:hover { color: var(--text); }

@media (max-width: 480px) {
  body { padding: 0.85rem; }
  .card { padding: 1.5rem 1.25rem; border-radius: 14px; }
  h1 { font-size: 1.25rem; }
  .header { gap: 0.75rem; }
  .header-controls { gap: 0.5rem; }
  .server-list li {
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
  }
  .actions { justify-content: flex-end; }
  input, select {
    padding: 0.85rem 0.95rem;
    font-size: 16px;
  }
}