/* ===================================================
   Stylesheet
   Dark nebula/space theme with glassmorphism
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Custom Properties ─────────────────────────── */
:root {
  --bg:              #07071a;
  --bg2:             #0d0d2b;
  --purple:          #8b5cf6;
  --purple-light:    #a78bfa;
  --purple-dark:     #6d28d9;
  --cyan:            #22d3ee;
  --cyan-dark:       #0891b2;
  --glass:           rgba(139, 92, 246, 0.06);
  --glass-hover:     rgba(139, 92, 246, 0.13);
  --border:          rgba(139, 92, 246, 0.18);
  --border-hover:    rgba(139, 92, 246, 0.45);
  --text:            #eeeeff;
  --text-muted:      #9898c0;
  --text-dim:        #55558a;
  --danger:          #f87171;
  --success:         #34d399;
  --radius-sm:       10px;
  --radius-md:       14px;
  --radius-lg:       20px;
  --radius-xl:       26px;
  --transition:      0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* ── Starfield Canvas (fixed, behind everything) ────── */
#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ── Ambient nebula glows ───────────────────────────── */
.nebula-glow {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}
.nebula-glow.purple {
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(109, 40, 217, 0.18) 0%, transparent 65%);
  top: -200px; left: -150px;
  animation: floatOrb 14s ease-in-out infinite alternate;
}
.nebula-glow.cyan {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(8, 145, 178, 0.12) 0%, transparent 65%);
  bottom: -120px; right: -100px;
  animation: floatOrb 11s ease-in-out infinite alternate-reverse;
}
.nebula-glow.mid {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.07) 0%, transparent 65%);
  top: 40%; left: 50%;
  transform: translate(-50%, -50%);
  animation: floatOrb 18s ease-in-out infinite alternate;
}

@keyframes floatOrb {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(30px, 20px) scale(1.05); }
}

/* ── Password Overlay ──────────────────────────────── */
#password-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lock-card {
  position: relative;
  z-index: 1;
  background: rgba(10, 10, 30, 0.88);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 46px 50px;
  text-align: center;
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  box-shadow:
    0 0 0 1px rgba(139, 92, 246, 0.08) inset,
    0 0 80px rgba(109, 40, 217, 0.18),
    0 30px 80px rgba(0, 0, 0, 0.65);
  max-width: 430px;
  width: 92%;
  animation: cardEntrance 0.55s cubic-bezier(0.22, 1, 0.36, 1) both;
}

/* Animated shimmer border on the lock card */
.lock-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(139,92,246,0.4), rgba(34,211,238,0.2), rgba(139,92,246,0.4));
  background-size: 200% 200%;
  animation: shimmerBorder 4s linear infinite;
  z-index: -1;
  opacity: 0.6;
}

@keyframes shimmerBorder {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes cardEntrance {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Lock card logo row */
.lock-logo-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 6px;
}

.lock-logo-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.lock-brand {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(120deg, var(--purple-light) 0%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lock-subtitle {
  color: var(--text-dim);
  font-size: 0.875rem;
  margin-bottom: 30px;
  font-weight: 400;
}

/* Password input */
#password-input {
  width: 100%;
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  letter-spacing: 5px;
  text-align: center;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  margin-bottom: 14px;
}
#password-input::placeholder {
  letter-spacing: normal;
  font-size: 0.875rem;
  color: var(--text-dim);
}
#password-input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.18), 0 0 20px rgba(139, 92, 246, 0.08);
}

/* Unlock button */
#login-btn {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--purple-dark) 0%, var(--purple) 100%);
  border: none;
  border-radius: var(--radius-md);
  color: white;
  font-family: 'Inter', sans-serif;
  font-size: 0.975rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
#login-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
#login-btn:hover { transform: translateY(-2px); box-shadow: 0 0 35px rgba(139,92,246,0.45); }
#login-btn:hover::after { opacity: 1; }
#login-btn:active { transform: translateY(0); }

/* Error message */
#login-error {
  color: var(--danger);
  font-size: 0.84rem;
  font-weight: 600;
  margin-top: 10px;
  display: none;
  animation: shake 0.35s ease;
}
@keyframes shake {
  0%,100%  { transform: translateX(0); }
  20%,60%  { transform: translateX(-7px); }
  40%,80%  { transform: translateX(7px); }
}

/* Quick actions (Settings + Cloak) below password form */
.lock-quick-actions {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  gap: 10px;
  justify-content: center;
}
.lock-action-btn {
  flex: 1;
  padding: 9px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--cyan);
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.lock-action-btn:hover {
  background: rgba(34, 211, 238, 0.08);
  border-color: rgba(34, 211, 238, 0.4);
}

/* ── Main App Shell ─────────────────────────────────── */
#app {
  position: fixed;
  inset: 0;
  z-index: 1;
}

.panel {
  position: absolute;
  inset: 0;
  display: none;
}
.panel.active {
  display: flex;
  flex-direction: column;
}

/* ── Shared Header ─────────────────────────────────── */
.app-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: rgba(7, 7, 26, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.header-brand-icon { width: 30px; height: 30px; flex-shrink: 0; }
.header-brand-name {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  background: linear-gradient(120deg, var(--purple-light), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-nav { display: flex; gap: 8px; }

.nav-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: 'Inter', sans-serif;
  font-size: 0.855rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.nav-btn:hover {
  background: var(--glass-hover);
  border-color: var(--border-hover);
  color: var(--purple-light);
}

/* ── Home Panel ─────────────────────────────────────── */
#home-panel .home-content {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  overflow: hidden;
}

.home-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 820px;
  width: 100%;
  position: relative;
  z-index: 2;
}

.feature-card {
  background: rgba(10, 10, 28, 0.72);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: relative;
  overflow: hidden;
  user-select: none;
}

/* Glow overlay on hover */
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(139,92,246,0.12) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}
.feature-card:hover { 
  border-color: rgba(139, 92, 246, 0.55);
  box-shadow: 0 0 50px rgba(139,92,246,0.22), 0 20px 50px rgba(0,0,0,0.4);
  transform: translateY(-5px);
}
.feature-card:hover::before { opacity: 1; }
.feature-card:active { transform: translateY(-2px); }

.feature-card .card-emoji {
  font-size: 3.2rem;
  display: block;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 16px rgba(139,92,246,0.5));
}

.feature-card h2 {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.65;
  margin-bottom: 22px;
}

.feature-card .card-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 14px;
  background: rgba(139,92,246,0.12);
  border: 1px solid rgba(139,92,246,0.3);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--purple-light);
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

/* ── Proxy Panel ─────────────────────────────────────── */
#proxy-panel {
  flex-direction: column;
  height: 100%;
}

.proxy-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: rgba(7, 7, 26, 0.9);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  flex-shrink: 0;
  z-index: 10;
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: var(--glass);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
  font-family: 'Inter', sans-serif;
}
.icon-btn:hover {
  background: var(--glass-hover);
  border-color: var(--border-hover);
  color: var(--text);
}

#proxy-form {
  display: flex;
  flex: 1;
  gap: 8px;
  min-width: 0;
}

#proxy-url-input {
  flex: 1;
  min-width: 0;
  padding: 9px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
#proxy-url-input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(139,92,246,0.12);
}

.proxy-go-btn {
  padding: 9px 20px;
  background: linear-gradient(135deg, var(--purple-dark), var(--purple));
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  font-family: 'Inter', sans-serif;
  font-size: 0.855rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}
.proxy-go-btn:hover {
  background: linear-gradient(135deg, var(--purple), var(--purple-light));
  box-shadow: 0 0 24px rgba(139,92,246,0.38);
  transform: translateY(-1px);
}
.proxy-go-btn:active { transform: translateY(0); }

/* Proxy content area */
.proxy-content {
  flex: 1;
  position: relative;
  overflow: hidden;
  min-height: 0;
}

#proxy-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  background: #fff;
  display: block;
}

/* ── Settings Panel ───────────────────────────────────── */
#settings-panel {
  overflow-y: auto;
  overflow-x: hidden;
}

.settings-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 28px;
  background: rgba(7, 7, 26, 0.82);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-shrink: 0;
}

.settings-header-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.settings-body {
  max-width: 680px;
  margin: 0 auto;
  padding: 32px 24px 60px;
  position: relative;
  z-index: 2;
}

.settings-group-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 28px 0 10px 4px;
}
.settings-group-label:first-child { margin-top: 0; }

.setting-card {
  background: rgba(10, 10, 28, 0.65);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 10px;
  backdrop-filter: blur(10px);
  transition: border-color var(--transition);
}
.setting-card:hover { border-color: rgba(139,92,246,0.28); }

.setting-card h3 {
  font-size: 0.93rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.setting-card .setting-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.55;
}

.setting-input {
  width: 100%;
  padding: 10px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  margin-bottom: 10px;
}
.setting-input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(139,92,246,0.12);
}

.setting-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.setting-btn {
  padding: 9px 18px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
  font-size: 0.855rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.setting-btn.primary {
  background: linear-gradient(135deg, var(--purple-dark), var(--purple));
  color: white;
}
.setting-btn.primary:hover {
  background: linear-gradient(135deg, var(--purple), var(--purple-light));
  box-shadow: 0 0 22px rgba(139,92,246,0.35);
  transform: translateY(-1px);
}
.setting-btn.secondary {
  background: var(--glass);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.setting-btn.secondary:hover {
  background: var(--glass-hover);
  border-color: var(--border-hover);
  color: var(--text);
}
.setting-btn.danger {
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.25);
  color: var(--danger);
}
.setting-btn.danger:hover {
  background: rgba(239,68,68,0.2);
  border-color: rgba(239,68,68,0.5);
}

/* Toggle switch */
.toggle-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.toggle-wrap .toggle-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.toggle {
  position: relative;
  width: 46px;
  height: 24px;
  flex-shrink: 0;
  cursor: pointer;
}
.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-track {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border);
  transition: all 0.3s;
  cursor: pointer;
}
.toggle-track::after {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  background: #fff;
  border-radius: 50%;
  top: 3px; left: 3px;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 1px 4px rgba(0,0,0,0.4);
}
.toggle input:checked + .toggle-track {
  background: linear-gradient(135deg, var(--purple-dark), var(--purple));
  border-color: var(--purple);
  box-shadow: 0 0 14px rgba(139,92,246,0.35);
}
.toggle input:checked + .toggle-track::after { transform: translateX(22px); }

/* Status messages */
.status-msg {
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 8px;
  display: none;
  animation: fadeIn 0.3s ease;
}
.status-msg.success { color: var(--success); }
.status-msg.error   { color: var(--danger); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ── Scrollbar ─────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(139,92,246,0.28); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--purple); }

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 600px) {
  .home-cards { grid-template-columns: 1fr; gap: 16px; }
  .lock-card { padding: 32px 24px; }
  .app-header, .proxy-header, .settings-header { padding: 12px 16px; }
  .header-nav .nav-btn .btn-label { display: none; }
  .settings-body { padding: 24px 16px 48px; }
}