/* ========================
   URLINKGO — Cyber CSS
   ======================== */

:root {
  --bg: #050a0f;
  --bg2: #0a1520;
  --bg3: #0f1e2d;
  --card: #0d1a27;
  --card-border: #1a3045;
  --accent: #00e5ff;
  --accent2: #00ff88;
  --accent3: #ff4d6d;
  --text: #cde8f8;
  --text2: #7aafcc;
  --text3: #3d6b85;
  --glow: 0 0 12px rgba(0,229,255,0.25);
  --glow2: 0 0 20px rgba(0,229,255,0.4);
  --radius: 6px;
  --font-mono: 'Share Tech Mono', monospace;
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Inter', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ---- Background Grid ---- */
.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.scanline {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.08) 2px,
    rgba(0,0,0,0.08) 4px
  );
  pointer-events: none;
  z-index: 1;
  animation: scanmove 8s linear infinite;
}

@keyframes scanmove {
  from { background-position: 0 0; }
  to { background-position: 0 -400px; }
}

/* ---- Header ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(5,10,15,0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--card-border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text);
}

.logo-icon {
  color: var(--accent);
  font-size: 1.3rem;
  animation: spin 8s linear infinite;
}

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

.accent { color: var(--accent); }

.nav {
  display: flex;
  gap: 6px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text2);
  text-decoration: none;
  padding: 5px 12px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all 0.2s;
  letter-spacing: 1px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  border-color: rgba(0,229,255,0.3);
  background: rgba(0,229,255,0.05);
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent2);
  letter-spacing: 2px;
  padding: 4px 10px;
  border: 1px solid rgba(0,255,136,0.3);
  border-radius: 20px;
  background: rgba(0,255,136,0.05);
}

.dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent2);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

/* ---- Main ---- */
.main {
  position: relative;
  z-index: 2;
  max-width: 780px;
  margin: 0 auto;
  padding: 32px 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ---- Hero ---- */
.hero {
  text-align: center;
  padding: 12px 0 8px;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 3px;
  margin-bottom: 12px;
  opacity: 0.8;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1px;
  color: var(--text);
  text-shadow: 0 0 40px rgba(0,229,255,0.3);
  margin-bottom: 14px;
}

.hero-sub {
  font-size: 0.9rem;
  color: var(--text2);
  max-width: 420px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---- Cards ---- */
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 22px;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.6;
}

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

.card-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 2px;
}

.card-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text2);
  border: 1px solid var(--card-border);
  padding: 2px 8px;
  border-radius: var(--radius);
  letter-spacing: 1px;
}

/* ---- Inputs ---- */
.input-group {
  margin-bottom: 18px;
}

.input-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text2);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.optional {
  color: var(--text3);
  text-transform: none;
  letter-spacing: 0;
  font-family: var(--font-body);
}

.input-wrap {
  display: flex;
  align-items: center;
  background: var(--bg2);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.input-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: var(--glow);
}

.input-icon {
  padding: 0 12px;
  color: var(--accent);
  font-size: 1rem;
  flex-shrink: 0;
}

.input-field {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 12px 6px 12px 0;
  min-width: 0;
}

.input-field::placeholder { color: var(--text3); }

.paste-btn, .rand-btn {
  background: none;
  border: none;
  border-left: 1px solid var(--card-border);
  color: var(--text2);
  padding: 0 13px;
  height: 100%;
  cursor: pointer;
  font-size: 1.05rem;
  transition: color 0.2s, background 0.2s;
  flex-shrink: 0;
}

.paste-btn:hover, .rand-btn:hover {
  color: var(--accent);
  background: rgba(0,229,255,0.05);
}

.prefix-wrap {
  position: relative;
}

.prefix {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text3);
  padding: 12px 0 12px 14px;
  white-space: nowrap;
  flex-shrink: 0;
  border-right: 1px solid var(--card-border);
  margin-right: 8px;
}

.prefix-input {
  padding-left: 0;
}

/* ---- Options Row ---- */
.options-row {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 22px;
}

.option-toggle {
  display: flex;
  align-items: center;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text2);
  cursor: pointer;
  user-select: none;
}

.toggle-label input { display: none; }

.toggle-track {
  width: 38px;
  height: 20px;
  background: var(--bg3);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  position: relative;
  transition: background 0.2s, border-color 0.2s;
  flex-shrink: 0;
}

.toggle-label input:checked ~ .toggle-track {
  background: rgba(0,229,255,0.15);
  border-color: var(--accent);
}

.toggle-thumb {
  position: absolute;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--text3);
  top: 2px; left: 2px;
  transition: transform 0.2s, background 0.2s;
}

.toggle-label input:checked ~ .toggle-track .toggle-thumb {
  transform: translateX(18px);
  background: var(--accent);
  box-shadow: 0 0 6px rgba(0,229,255,0.6);
}

.expiry-select { margin-left: auto; }

.select-field {
  background: var(--bg2);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 7px 28px 7px 10px;
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='none'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%237aafcc' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  transition: border-color 0.2s;
}

.select-field:focus { border-color: var(--accent); }

/* ---- Generate Button ---- */
.generate-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: linear-gradient(135deg, rgba(0,229,255,0.1), rgba(0,229,255,0.05));
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 3px;
  padding: 15px 24px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.25s;
}

.generate-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  opacity: 0;
  transition: opacity 0.25s;
}

.generate-btn:hover {
  box-shadow: var(--glow2);
  transform: translateY(-1px);
}

.generate-btn:hover::before { opacity: 0.1; }
.generate-btn:active { transform: translateY(0); }

.generate-btn.loading .btn-text::after {
  content: '...';
  animation: dots 1s steps(3) infinite;
}

@keyframes dots {
  0% { content: '.'; }
  33% { content: '..'; }
  66% { content: '...'; }
}

.btn-text, .btn-icon { position: relative; z-index: 1; }

/* ---- Result Area ---- */
.result-area {
  margin-top: 20px;
  border: 1px solid rgba(0,255,136,0.3);
  border-radius: var(--radius);
  overflow: hidden;
  animation: fadeIn 0.35s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  background: rgba(0,255,136,0.05);
  border-bottom: 1px solid rgba(0,255,136,0.15);
}

.result-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent2);
  letter-spacing: 2px;
}

.result-status {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent2);
}

.result-box {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  gap: 10px;
  background: var(--bg2);
}

.short-url {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent);
  word-break: break-all;
  text-shadow: 0 0 8px rgba(0,229,255,0.4);
}

.result-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.action-btn {
  width: 32px; height: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  background: var(--bg3);
  color: var(--text2);
  cursor: pointer;
  font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}

.action-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,229,255,0.08);
}

.action-btn.danger:hover {
  border-color: var(--accent3);
  color: var(--accent3);
  background: rgba(255,77,109,0.08);
}

.result-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 8px 14px;
  border-top: 1px solid var(--card-border);
  font-size: 0.72rem;
  color: var(--text2);
  font-family: var(--font-mono);
}

/* ---- QR Section ---- */
.qr-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px;
  border-top: 1px solid var(--card-border);
  background: var(--bg2);
}

#qrCanvas {
  border: 2px solid var(--accent);
  border-radius: 6px;
  image-rendering: pixelated;
}

.qr-download-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: none;
  border: 1px solid rgba(0,229,255,0.3);
  padding: 5px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  letter-spacing: 1px;
  transition: all 0.2s;
}

.qr-download-btn:hover {
  background: rgba(0,229,255,0.08);
  box-shadow: var(--glow);
}

/* ---- History ---- */
.history-card .card-header { margin-bottom: 14px; }

.clear-btn {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent3);
  background: none;
  border: 1px solid rgba(255,77,109,0.3);
  padding: 4px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  letter-spacing: 1px;
  transition: all 0.2s;
}

.clear-btn:hover {
  background: rgba(255,77,109,0.1);
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 340px;
  overflow-y: auto;
  padding-right: 4px;
}

.history-list::-webkit-scrollbar { width: 4px; }
.history-list::-webkit-scrollbar-track { background: var(--bg2); }
.history-list::-webkit-scrollbar-thumb { background: var(--card-border); border-radius: 2px; }

.history-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg2);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
  animation: fadeIn 0.3s ease;
}

.history-item:hover {
  border-color: rgba(0,229,255,0.25);
}

.history-item-info { flex: 1; min-width: 0; }

.history-short {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-long {
  font-size: 0.72rem;
  color: var(--text3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

.click-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent2);
  border: 1px solid rgba(0,255,136,0.25);
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
}

.history-copy {
  width: 28px; height: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  background: none;
  color: var(--text3);
  cursor: pointer;
  font-size: 0.8rem;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}

.history-copy:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 32px;
  color: var(--text3);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.empty-icon {
  font-size: 2rem;
  opacity: 0.4;
  animation: pulse 2s ease-in-out infinite;
}

/* ---- Stats ---- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 18px 16px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%; transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: var(--accent);
  opacity: 0.3;
}

.stat-card:hover {
  border-color: rgba(0,229,255,0.3);
  box-shadow: var(--glow);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  text-shadow: 0 0 12px rgba(0,229,255,0.4);
  transition: all 0.4s;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text3);
  letter-spacing: 1.5px;
  margin-top: 4px;
}

/* ---- Footer ---- */
.footer {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text3);
  border-top: 1px solid var(--card-border);
}

.footer a { color: var(--accent); text-decoration: none; }
.footer a:hover { text-shadow: var(--glow); }
.footer-sep { margin: 0 10px; opacity: 0.3; }

/* ---- Toast ---- */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg3);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 10px 20px;
  border-radius: 6px;
  box-shadow: var(--glow2);
  z-index: 999;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
  letter-spacing: 1px;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.error {
  border-color: var(--accent3);
  color: var(--accent3);
  box-shadow: 0 0 16px rgba(255,77,109,0.3);
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .header { padding: 12px 16px; }
  .nav { display: none; }
  .status-pill { font-size: 0.6rem; padding: 3px 8px; }
  .logo-text { font-size: 0.95rem; letter-spacing: 1px; }

  .main { padding: 20px 14px 50px; gap: 18px; }

  .hero-title { font-size: 2rem; }

  .card { padding: 16px; }

  .prefix {
    font-size: 0.68rem;
    padding: 11px 0 11px 10px;
  }

  .options-row { gap: 10px; }
  .expiry-select { margin-left: 0; width: 100%; }
  .select-field { width: 100%; }

  .result-box { flex-wrap: wrap; }
  .short-url { font-size: 0.82rem; }
  .result-meta { gap: 8px; }

  .stats-row { gap: 10px; }
  .stat-value { font-size: 1.4rem; }
  .stat-label { font-size: 0.55rem; }

  .history-item { padding: 8px 10px; }
  .history-short { font-size: 0.76rem; }
}

@media (max-width: 380px) {
  .stats-row { grid-template-columns: repeat(3, 1fr); }
  .stat-card { padding: 12px 8px; }
}