/* ===== VoiceClone Pro SaaS — Design System (preserves original dark theme) ===== */
:root {
  --bg: #0f0f1a; --card: #1a1a2e; --card-2: #252542; --text: #e8e8f0; --muted: #8a8aa3;
  --accent: #8b5cf6; --accent-soft: rgba(139,92,246,.15); --accent2: #06b6d4; --accent2-soft: rgba(6,182,212,.15);
  --accent3: #f59e0b; --accent3-soft: rgba(245,158,11,.15); --success: #10b981; --danger: #ef4444;
  --border: rgba(255,255,255,.08); --radius: 18px; --radius-sm: 12px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Sora',sans-serif;background:radial-gradient(800px 400px at 20% -10%,rgba(139,92,246,.12),transparent 60%),radial-gradient(600px 300px at 80% 0%,rgba(6,182,212,.1),transparent 60%),var(--bg);color:var(--text);min-height:100vh;line-height:1.6}
a{color:var(--accent2);text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:32px 20px}
.container-narrow{max-width:440px;margin:0 auto;padding:40px 20px}

/* Header / Logo */
.header{text-align:center;margin-bottom:32px}
.logo{width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;margin:0 auto 16px;box-shadow:0 8px 32px rgba(139,92,246,.3)}
.logo-sm{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;flex-shrink:0}
h1{font-size:32px;font-weight:700;letter-spacing:-.02em}
.gradient-text{background:linear-gradient(100deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--muted)}
.vn-badge{display:inline-block;background:var(--accent3-soft);color:var(--accent3);border:1px solid var(--accent3);padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600;margin-top:10px}

/* Tabs */
.tabs{display:flex;gap:6px;background:var(--card);padding:6px;border-radius:14px;margin-bottom:24px;border:1px solid var(--border);overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab-btn{flex:1;min-width:max-content;padding:10px 14px;background:transparent;border:none;color:var(--muted);font-family:inherit;font-size:13px;font-weight:600;border-radius:10px;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:6px;white-space:nowrap}
.tab-btn.active{background:var(--accent-soft);color:var(--text);border:1px solid var(--accent)}
.tab-content{display:none}.tab-content.active{display:block}

/* Cards */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px}
.card-title{font-size:16px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.card-title svg{color:var(--accent);flex-shrink:0}
.card-subtitle{font-size:13px;color:var(--muted);margin-bottom:14px;line-height:1.6}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:12px;border:none;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;text-decoration:none}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 4px 20px rgba(139,92,246,.3)}
.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 28px rgba(139,92,246,.45)}
.btn-secondary{background:var(--card-2);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover:not(:disabled){background:#2d2d4a}
.btn-accent3{background:var(--accent3-soft);color:var(--accent3);border:1px solid var(--accent3)}
.btn-danger{background:rgba(239,68,68,.15);color:var(--danger);border:1px solid var(--danger)}
.btn-small{padding:8px 14px;font-size:12px;border-radius:8px}
.btn-block{width:100%}
.icon-btn{width:36px;height:36px;border-radius:10px;background:var(--card-2);border:1px solid var(--border);color:var(--muted);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .2s}
.icon-btn:hover{color:var(--text);border-color:var(--accent)}

/* Forms */
.form-group{margin-bottom:16px}
label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--text)}
input,select,textarea{width:100%;background:var(--card-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;color:var(--text);font-family:inherit;font-size:14px;transition:border-color .2s;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
textarea{min-height:140px;resize:vertical}
.hint{font-size:12px;color:var(--muted);margin-top:4px}
.error-text{color:var(--danger);font-size:13px;margin-top:8px}
.success-text{color:var(--success);font-size:13px;margin-top:8px}

/* Textarea + char count (original TTS) */
.char-count{font-size:12px;color:var(--muted);text-align:right;margin-top:6px}
.quick-text{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.quick-text-btn{padding:6px 12px;background:var(--card-2);border:1px solid var(--border);border-radius:8px;color:var(--muted);font-size:12px;cursor:pointer;font-family:inherit}
.quick-text-btn:hover{color:var(--text);border-color:var(--accent)}

/* Controls grid (original TTS sliders) */
.controls-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:16px}
.control-group{background:var(--card-2);padding:14px;border-radius:12px;border:1px solid var(--border)}
.control-label{font-size:12px;font-weight:600;color:var(--muted);margin-bottom:8px;display:flex;justify-content:space-between}
.control-label span{color:var(--accent2)}
input[type=range]{width:100%;-webkit-appearance:none;height:6px;border-radius:3px;background:var(--bg);outline:none;padding:0}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));cursor:pointer;box-shadow:0 2px 8px rgba(139,92,246,.4)}

/* Voice grid (original) */
.voice-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-top:12px}
.voice-item{background:var(--card-2);border:2px solid transparent;border-radius:12px;padding:14px;cursor:pointer;transition:all .2s}
.voice-item:hover{border-color:var(--accent)}
.voice-item.selected{border-color:var(--accent);background:var(--accent-soft)}
.voice-item-name{font-size:14px;font-weight:600;margin-bottom:4px}
.voice-item-desc{font-size:12px;color:var(--muted)}
.voice-cat-btn{padding:6px 14px;border-radius:20px;background:var(--card-2);border:1px solid var(--border);color:var(--muted);font-size:12px;cursor:pointer;font-family:inherit;font-weight:600}
.voice-cat-btn.active{background:var(--accent-soft);color:var(--text);border-color:var(--accent)}

/* Status bar (original) */
.status-bar{display:flex;align-items:center;gap:8px;padding:10px 16px;background:var(--card-2);border-radius:10px;font-size:13px;margin-bottom:16px}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--muted);flex-shrink:0}
.status-dot.online{background:var(--success);box-shadow:0 0 8px var(--success)}
.status-dot.error{background:var(--danger)}

/* Audio player (original) */
.audio-container{background:var(--card-2);border-radius:12px;padding:16px;margin-top:16px;display:none}
.audio-container.show{display:block}
.audio-container audio{width:100%;margin-top:10px}
.action-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.waveform{display:flex;align-items:flex-end;gap:3px;height:40px;margin:10px 0}
.wave-bar{width:4px;background:linear-gradient(to top,var(--accent),var(--accent2));border-radius:2px;animation:wave 1s ease-in-out infinite}
@keyframes wave{0%,100%{height:30%}50%{height:100%}}

/* Info boxes (original) */
.info-box{background:var(--card-2);border-radius:12px;padding:14px;margin-bottom:10px;border-left:3px solid var(--accent)}
.info-box-title{font-size:13px;font-weight:600;margin-bottom:4px}

/* ===== SaaS additions ===== */
/* Layout with sidebar */
.app-layout{display:flex;min-height:100vh}
.sidebar{width:260px;background:var(--card);border-right:1px solid var(--border);padding:20px 16px;position:fixed;top:0;left:0;bottom:0;overflow-y:auto;z-index:40;transition:transform .3s}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:8px 10px 20px;border-bottom:1px solid var(--border);margin-bottom:16px}
.sidebar-brand h2{font-size:16px;font-weight:700}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;color:var(--muted);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;margin-bottom:2px;text-decoration:none;width:100%;border:none;background:none;font-family:inherit;text-align:left}
.nav-item:hover{background:var(--card-2);color:var(--text)}
.nav-item.active{background:var(--accent-soft);color:var(--text);border:1px solid var(--accent)}
.nav-item svg{flex-shrink:0;opacity:.8}
.nav-section{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);padding:12px 14px 6px;font-weight:700}
.main-content{margin-left:260px;flex:1;padding:28px 32px;max-width:100%;overflow-x:hidden}
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;gap:12px;flex-wrap:wrap}
.topbar h1{font-size:24px}
.user-menu{display:flex;align-items:center;gap:10px;background:var(--card);padding:6px 12px;border-radius:12px;border:1px solid var(--border);cursor:pointer;position:relative}
.avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;color:#fff;flex-shrink:0}
.mobile-toggle{display:none;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:8px;color:var(--text);cursor:pointer}
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:30}
.overlay.show{display:block}
@media(max-width:900px){.sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0)}.main-content{margin-left:0;padding:20px 16px}.mobile-toggle{display:inline-flex}}

/* Stats grid */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.stat-label{font-size:12px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}
.stat-value{font-size:28px;font-weight:700;background:linear-gradient(100deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-sub{font-size:12px;color:var(--muted);margin-top:4px}

/* Tables */
.table-wrap{overflow-x:auto;border-radius:var(--radius-sm);border:1px solid var(--border)}
table{width:100%;border-collapse:collapse;font-size:13px}
th{background:var(--card-2);padding:12px 14px;text-align:left;font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.05em;white-space:nowrap}
td{padding:12px 14px;border-top:1px solid var(--border)}
tr:hover td{background:rgba(139,92,246,.05)}

/* Badges */
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:700;white-space:nowrap}
.badge-success{background:rgba(16,185,129,.15);color:var(--success)}
.badge-danger{background:rgba(239,68,68,.15);color:var(--danger)}
.badge-warning{background:var(--accent3-soft);color:var(--accent3)}
.badge-info{background:var(--accent2-soft);color:var(--accent2)}
.badge-muted{background:var(--card-2);color:var(--muted)}

/* Toast */
#toast-container{position:fixed;top:20px;right:20px;z-index:1000;display:flex;flex-direction:column;gap:10px}
.toast{background:var(--card);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:12px;padding:14px 18px;min-width:280px;box-shadow:0 10px 40px rgba(0,0,0,.4);animation:slideIn .3s ease;font-size:13px}
.toast.success{border-left-color:var(--success)}.toast.error{border-left-color:var(--danger)}.toast.warning{border-left-color:var(--accent3)}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* Modal */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:500;align-items:center;justify-content:center;padding:20px}
.modal-overlay.show{display:flex}
.modal{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;max-width:480px;width:100%;max-height:90vh;overflow-y:auto}
.modal h3{margin-bottom:16px;font-size:18px}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}

/* Skeleton */
.skeleton{background:linear-gradient(90deg,var(--card-2) 25%,#2d2d4a 50%,var(--card-2) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:8px;height:16px;margin-bottom:10px}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* Empty state */
.empty-state{text-align:center;padding:48px 20px;color:var(--muted)}
.empty-state svg{margin-bottom:16px;opacity:.4}

/* Pagination */
.pagination{display:flex;gap:6px;justify-content:center;margin-top:20px;flex-wrap:wrap}
.pagination button{min-width:36px;height:36px;border-radius:8px;background:var(--card-2);border:1px solid var(--border);color:var(--text);cursor:pointer;font-family:inherit;font-size:13px}
.pagination button.active{background:var(--accent);border-color:var(--accent);color:#fff}
.pagination button:disabled{opacity:.4;cursor:not-allowed}

/* Filters bar */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px;align-items:flex-end}
.filters .form-group{margin-bottom:0;flex:1;min-width:140px}

/* Pricing cards */
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin:32px 0}
.pricing-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;text-align:center;position:relative}
.pricing-card.featured{border-color:var(--accent);box-shadow:0 0 40px rgba(139,92,246,.2)}
.pricing-card .price{font-size:40px;font-weight:700;margin:16px 0}
.pricing-card ul{list-style:none;text-align:left;margin:20px 0}
.pricing-card li{padding:8px 0;border-bottom:1px solid var(--border);font-size:14px}
.pricing-card li::before{content:'✓';color:var(--success);font-weight:700;margin-right:10px}

/* Landing hero */
.hero{text-align:center;padding:60px 20px 40px}
.hero h1{font-size:48px;line-height:1.1;margin-bottom:16px}
.hero p{font-size:18px;color:var(--muted);max-width:600px;margin:0 auto 32px}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin:48px 0}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.feature-card h3{font-size:16px;margin:12px 0 8px}
.feature-card p{font-size:13px;color:var(--muted)}
.feature-icon{width:48px;height:48px;border-radius:14px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;color:var(--accent)}

/* Navbar (public) */
.navbar{display:flex;align-items:center;justify-content:space-between;padding:20px 32px;max-width:1200px;margin:0 auto}
.navbar .brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}
.navbar .nav-links{display:flex;gap:24px;align-items:center}
.navbar .nav-links a{color:var(--muted);font-size:14px;font-weight:500}
.navbar .nav-links a:hover{color:var(--text)}
@media(max-width:700px){.navbar{padding:16px}.navbar .nav-links a:not(.btn){display:none}.hero h1{font-size:32px}}

/* Footer */
.footer{border-top:1px solid var(--border);padding:32px 20px;text-align:center;color:var(--muted);font-size:13px;margin-top:60px}
.footer a{color:var(--muted);margin:0 12px}
.footer a:hover{color:var(--text)}

/* Ticket messages */
.msg{padding:12px 16px;border-radius:12px;margin-bottom:10px;max-width:80%}
.msg.user{background:var(--accent-soft);margin-left:auto}
.msg.admin{background:var(--card-2)}
.msg .meta{font-size:11px;color:var(--muted);margin-top:4px}


/* ============ TELEGRAM CHAT BUBBLE ============ */
#telegram-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0088cc, #229ed9);
  border: none;
  cursor: pointer;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 136, 204, 0.4);
  transition: all 0.3s ease;
  animation: telegramPulse 2.5s infinite;
  padding: 0;
}

#telegram-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(0, 136, 204, 0.55);
}

#telegram-fab:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}

#telegram-fab svg {
  width: 28px;
  height: 28px;
  fill: white;
  flex-shrink: 0;
}

@keyframes telegramPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(0, 136, 204, 0.4); }
  50% { box-shadow: 0 4px 20px rgba(0, 136, 204, 0.4), 0 0 0 12px rgba(0, 136, 204, 0.15); }
}

/* Popup */
#telegram-popup {
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 300px;
  background: var(--card, #1a1a2e);
  border: 1px solid var(--border, rgba(255,255,255,0.08));
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
  z-index: 9998;
  padding: 20px;
  animation: popupSlideIn 0.3s ease;
}

@keyframes popupSlideIn {
  from { opacity: 0; transform: translateY(16px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

#telegram-popup.hidden {
  display: none;
}

.telegram-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.telegram-popup-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text, #e8e8f0);
  display: flex;
  align-items: center;
  gap: 8px;
}

.telegram-popup-close {
  background: none;
  border: none;
  color: var(--muted, #8a8aa3);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.telegram-popup-close:hover {
  background: var(--card-2, #252542);
  color: var(--text, #e8e8f0);
}

.telegram-popup-close:focus-visible {
  outline: 2px solid var(--accent, #8b5cf6);
}

.telegram-popup-desc {
  font-size: 13px;
  color: var(--muted, #8a8aa3);
  line-height: 1.6;
  margin-bottom: 16px;
}

.telegram-chat-btn {
  width: 100%;
  padding: 12px 16px;
  background: linear-gradient(135deg, #0088cc, #229ed9);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s;
  font-family: inherit;
}

.telegram-chat-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 136, 204, 0.4);
}

.telegram-chat-btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.telegram-chat-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* Responsive - Mobile */
@media (max-width: 640px) {
  #telegram-fab {
    bottom: calc(20px + env(safe-area-inset-bottom));
    right: 20px;
    width: 52px;
    height: 52px;
  }
  
  #telegram-fab svg {
    width: 26px;
    height: 26px;
  }
  
  #telegram-popup {
    bottom: calc(84px + env(safe-area-inset-bottom));
    right: 16px;
    left: 16px;
    width: auto;
  }
}

/* Tablet */
@media (min-width: 641px) and (max-width: 1024px) {
  #telegram-fab {
    bottom: 28px;
    right: 28px;
  }
}

/* Khoang cach them neu co bottom navigation */
body.has-bottom-nav #telegram-fab {
  bottom: calc(80px + env(safe-area-inset-bottom));
}

body.has-bottom-nav #telegram-popup {
  bottom: calc(146px + env(safe-area-inset-bottom));
}