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

:root{
  --bg:#08090F;
  --surface:#0E1018;
  --surface-2:#131622;
  --border:rgba(255,255,255,.07);
  --border-strong:rgba(255,255,255,.12);
  --accent:#7C5CFF;
  --accent-hover:#8D71FF;
  --accent-soft:rgba(124,92,255,.13);
  --accent-border:rgba(124,92,255,.35);
  --text:#EEF0FA;
  --muted:#8B93B0;
  --faint:#5A6180;
  --green:#34D399;
  --green-soft:rgba(52,211,153,.12);
  --blue:#60A5FA;
  --pink:#F472B6;
  --red:#F87171;
  --red-soft:rgba(248,113,113,.12);
  --radius:12px;
  --radius-lg:16px;
  --sidebar-w:232px;
  --font-display:'Syne',sans-serif;
  --font-ui:'Inter',sans-serif;
}

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

html{scroll-behavior:smooth;}

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-ui);
  font-size:14px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

::selection{background:var(--accent-soft);}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-thumb{background:#252a3d;border-radius:99px;}
::-webkit-scrollbar-track{background:transparent;}

:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

/* ============ APP SHELL ============ */
.shell{display:flex;min-height:100vh;}

.sidebar{
  width:var(--sidebar-w);
  background:var(--surface);
  border-right:1px solid var(--border);
  padding:20px 14px;
  display:flex;
  flex-direction:column;
  gap:4px;
  position:fixed;
  top:0;bottom:0;left:0;
  z-index:50;
}

.sidebar-logo{
  display:flex;align-items:center;
  padding:6px 10px 22px;
}
.sidebar-logo img{width:132px;object-fit:contain;}

.side-label{
  font-size:10.5px;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;
  color:var(--faint);
  padding:14px 10px 6px;
}

.side-link{
  display:flex;align-items:center;gap:11px;
  padding:9px 10px;
  border-radius:9px;
  color:var(--muted);
  text-decoration:none;
  font-size:13.5px;font-weight:500;
  transition:background .15s,color .15s;
}
.side-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;flex-shrink:0;}
.side-link:hover{background:rgba(255,255,255,.04);color:var(--text);}
.side-link.active{background:var(--accent-soft);color:var(--text);}
.side-link.active svg{stroke:var(--accent-hover);}

.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:8px;}

.side-user{
  padding:10px;
  border-top:1px solid var(--border);
  font-size:12px;color:var(--faint);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

.logout-btn{
  display:flex;align-items:center;gap:11px;
  width:100%;
  padding:9px 10px;
  border:none;border-radius:9px;
  background:transparent;color:var(--muted);
  font-family:var(--font-ui);font-size:13.5px;font-weight:500;
  cursor:pointer;text-align:left;
  transition:background .15s,color .15s;
}
.logout-btn:hover{background:var(--red-soft);color:var(--red);}
.logout-btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;}

/* ============ MAIN AREA ============ */
.main{
  flex:1;
  margin-left:var(--sidebar-w);
  padding:32px 40px 64px;
  max-width:calc(1160px + var(--sidebar-w));
  min-width:0;
}

.page-head{margin-bottom:28px;}
.page-title{
  font-family:var(--font-display);
  font-size:24px;font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:4px;
}
.page-sub{color:var(--muted);font-size:13.5px;}

.page-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;flex-wrap:wrap;margin-bottom:28px;
}
.page-head-row .page-head{margin-bottom:0;}

/* ============ CARDS & STATS ============ */
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
}

.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:14px;
  margin-bottom:22px;
}

.stat{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:18px 20px;
}
.stat-label{
  font-size:11px;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;
  color:var(--faint);
  margin-bottom:10px;
}
.stat-value{
  font-size:30px;font-weight:700;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.stat-value.accent{color:var(--accent-hover);}
.stat-value.green{color:var(--green);}
.stat-value.blue{color:var(--blue);}
.stat-value.pink{color:var(--pink);}
.stat-sub{font-size:12px;color:var(--faint);margin-top:6px;}

/* ============ SECTIONS / TABLES ============ */
.section{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  margin-bottom:22px;
}
.section-head{
  padding:16px 22px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;
}
.section-title{font-size:14.5px;font-weight:600;}
.section-link{
  color:var(--accent-hover);text-decoration:none;
  font-size:13px;font-weight:500;
}
.section-link:hover{text-decoration:underline;}
.section-body{padding:22px;}

.table-scroll{overflow-x:auto;}
table{width:100%;border-collapse:collapse;min-width:640px;}
th{
  padding:11px 22px;
  text-align:left;
  font-size:11px;font-weight:600;
  letter-spacing:.07em;text-transform:uppercase;
  color:var(--faint);
  border-bottom:1px solid var(--border);
  background:rgba(255,255,255,.015);
}
td{
  padding:13px 22px;
  font-size:13.5px;
  border-bottom:1px solid var(--border);
  color:var(--text);
  font-variant-numeric:tabular-nums;
}
tr:last-child td{border-bottom:none;}
tbody tr{transition:background .12s;}
tbody tr:hover{background:rgba(255,255,255,.02);}
td .td-muted{color:var(--muted);}

/* ============ BADGES ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:99px;
  font-size:11.5px;font-weight:600;
}
.badge-dot{width:5px;height:5px;border-radius:50%;background:currentColor;}
.badge.starter{background:var(--accent-soft);color:#A78BFA;}
.badge.growth{background:rgba(96,165,250,.12);color:var(--blue);}
.badge.pro{background:rgba(244,114,182,.12);color:var(--pink);}
.badge.active{background:var(--green-soft);color:var(--green);}
.badge.inactive{background:var(--red-soft);color:var(--red);}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;
  border:none;border-radius:10px;
  font-family:var(--font-ui);font-size:13.5px;font-weight:600;
  cursor:pointer;text-decoration:none;
  transition:background .15s,border-color .15s,opacity .15s;
  color:var(--text);
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-hover);}
.btn-secondary{background:transparent;border:1px solid var(--border-strong);}
.btn-secondary:hover{border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.03);}
.btn-danger{background:var(--red-soft);color:var(--red);}
.btn-danger:hover{background:rgba(248,113,113,.2);}
.btn:disabled{opacity:.5;cursor:not-allowed;}
.btn-block{width:100%;}
.btn-lg{padding:13px 22px;font-size:14.5px;}

/* ============ FORMS ============ */
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:12.5px;font-weight:600;
  color:var(--muted);
  margin-bottom:7px;
}
.input,select.input,textarea.input{
  width:100%;
  background:var(--bg);
  border:1px solid var(--border-strong);
  border-radius:10px;
  padding:11px 14px;
  color:var(--text);
  font-family:var(--font-ui);font-size:14px;
  outline:none;
  transition:border-color .15s,box-shadow .15s;
}
.input::placeholder{color:var(--faint);}
.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);}
.input:disabled{opacity:.5;cursor:not-allowed;}
textarea.input{min-height:140px;resize:vertical;line-height:1.7;}
select.input{
  cursor:pointer;appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' fill='%238B93B0' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
}
select.input option{background:var(--surface-2);}

.field-row{position:relative;}
.eye{
  position:absolute;right:14px;top:50%;transform:translateY(-50%);
  cursor:pointer;color:var(--faint);
  display:flex;align-items:center;
  transition:color .15s;
}
.eye:hover{color:var(--text);}
.eye svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.7;}

.status-msg{margin-top:12px;font-size:13px;min-height:20px;color:var(--muted);}
.status-msg.success{color:var(--green);}
.status-msg.error{color:var(--red);}

/* ============ STATES ============ */
.loading-state{
  color:var(--faint);
  padding:80px 20px;
  text-align:center;
  font-size:14px;
}
.spinner{
  width:22px;height:22px;
  border:2px solid var(--border-strong);
  border-top-color:var(--accent);
  border-radius:50%;
  animation:spin .7s linear infinite;
  margin:0 auto 14px;
}
@keyframes spin{to{transform:rotate(360deg);}}

.empty-state{
  padding:48px 24px;
  text-align:center;
  color:var(--faint);
  font-size:13.5px;
  line-height:1.7;
}

/* Upgrade / locked feature state */
.locked-state{
  max-width:440px;margin:64px auto;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:44px 36px;
  text-align:center;
}
.locked-icon{
  width:44px;height:44px;
  background:var(--accent-soft);
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 18px;
}
.locked-icon svg{width:20px;height:20px;stroke:var(--accent-hover);fill:none;stroke-width:1.8;}
.locked-state h2{font-family:var(--font-display);font-size:19px;font-weight:800;margin-bottom:8px;}
.locked-state p{color:var(--muted);font-size:13.5px;margin-bottom:24px;line-height:1.7;}

/* Upgrade banner */
.upgrade-banner{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:var(--accent-soft);
  border:1px solid var(--accent-border);
  border-radius:var(--radius);
  padding:13px 18px;
  margin-bottom:22px;
  font-size:13px;color:#C4B5FD;
  flex-wrap:wrap;
}
.upgrade-banner a{
  background:var(--accent);color:#fff;
  padding:7px 14px;border-radius:8px;
  text-decoration:none;font-size:12.5px;font-weight:600;
  white-space:nowrap;
  transition:background .15s;
}
.upgrade-banner a:hover{background:var(--accent-hover);}

/* ============ CHARTS ============ */
.chart-grid{display:grid;grid-template-columns:2fr 1fr;gap:14px;margin-bottom:22px;}
.chart-pad{padding:20px 22px;}
canvas{display:block;max-width:100%;}
.axis-labels{
  display:flex;justify-content:space-between;
  padding:0 22px 16px;
  font-size:10.5px;color:var(--faint);
  font-variant-numeric:tabular-nums;
}
.legend{display:flex;flex-direction:column;gap:8px;width:100%;}
.legend-item{display:flex;align-items:center;gap:9px;font-size:12.5px;color:var(--muted);}
.legend-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;}

/* ============ AUTH PAGES (no sidebar) ============ */
.auth-body{
  min-height:100vh;
  display:flex;align-items:center;justify-content:center;
  padding:40px 20px;
  background:
    radial-gradient(ellipse 700px 420px at 50% -10%, rgba(124,92,255,.09), transparent),
    var(--bg);
}
.auth-card{
  width:100%;max-width:400px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:20px;
  padding:36px 32px;
}
.auth-logo{display:block;margin-bottom:26px;}
.auth-logo img{width:148px;object-fit:contain;}
.auth-title{
  font-family:var(--font-display);
  font-size:21px;font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:6px;
}
.auth-desc{color:var(--muted);font-size:13.5px;line-height:1.6;margin-bottom:24px;}

.tabs{
  display:flex;gap:4px;
  background:var(--bg);
  border:1px solid var(--border);
  padding:4px;border-radius:11px;
  margin-bottom:24px;
}
.tab{
  flex:1;padding:9px;
  border:none;border-radius:8px;
  background:transparent;color:var(--muted);
  font-family:var(--font-ui);font-size:13px;font-weight:600;
  cursor:pointer;
  transition:background .15s,color .15s;
}
.tab:hover{color:var(--text);}
.tab.active{background:var(--accent);color:#fff;}

.auth-success{display:none;text-align:center;padding:16px 0;}
.auth-success .icon{
  width:48px;height:48px;
  background:var(--green-soft);
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 18px;
}
.auth-success .icon svg{width:22px;height:22px;stroke:var(--green);fill:none;stroke-width:2;}
.auth-success h3{font-family:var(--font-display);font-size:19px;font-weight:800;margin-bottom:8px;}
.auth-success p{color:var(--muted);font-size:13.5px;line-height:1.7;}

/* ============ INFO ROWS (account page) ============ */
.info-row{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:13px 0;
  border-bottom:1px solid var(--border);
}
.info-row:last-child{border-bottom:none;}
.info-label{
  font-size:11px;font-weight:600;
  letter-spacing:.07em;text-transform:uppercase;
  color:var(--faint);
}
.info-value{font-size:13.5px;font-weight:500;}

/* ============ FAQ ITEMS ============ */
.faq-item{
  background:var(--surface-2);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px;
  margin-bottom:14px;
}
.faq-actions{display:flex;justify-content:flex-end;margin-top:4px;}

/* ============ CONVERSATIONS LAYOUT ============ */
.convo-shell{
  display:grid;
  grid-template-columns:340px 1fr;
  gap:0;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  height:calc(100vh - 170px);
  min-height:480px;
}
.convo-list-pane{
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;
  min-width:0;min-height:0;
}
.convo-list{min-height:0;}

/* Upgrade actions — pay now vs talk to team */
.upgrade-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;}
.upgrade-actions .btn{min-width:200px;}

/* ============ MODALS ============ */
.modal-overlay{
  display:none;position:fixed;inset:0;
  background:rgba(4,5,10,.75);
  backdrop-filter:blur(4px);
  z-index:200;
  align-items:center;justify-content:center;
  padding:20px;
}
.modal-overlay.open{display:flex;}
.modal{
  background:var(--surface);
  border:1px solid var(--border-strong);
  border-radius:var(--radius-lg);
  width:520px;max-width:100%;
  max-height:85vh;
  display:flex;flex-direction:column;
  overflow:hidden;
}
.modal-head{
  padding:18px 24px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  flex-shrink:0;
}
.modal-title{font-size:15px;font-weight:600;}
.modal-close{
  background:none;border:none;
  color:var(--faint);font-size:18px;line-height:1;
  cursor:pointer;padding:4px;
  transition:color .15s;
}
.modal-close:hover{color:var(--text);}
.modal-body{padding:22px 24px;overflow-y:auto;min-height:0;}
.modal-foot{
  padding:16px 24px;
  border-top:1px solid var(--border);
  display:flex;gap:10px;align-items:center;
  flex-shrink:0;
}
.convo-search-wrap{padding:14px;border-bottom:1px solid var(--border);}
.convo-list{flex:1;overflow-y:auto;padding:10px;}
.convo-item{
  padding:13px 14px;
  border-radius:10px;
  cursor:pointer;
  margin-bottom:4px;
  border:1px solid transparent;
  transition:background .12s,border-color .12s;
}
.convo-item:hover{background:rgba(255,255,255,.03);}
.convo-item.active{background:var(--accent-soft);border-color:var(--accent-border);}
.convo-name{font-size:13px;font-weight:600;margin-bottom:3px;}
.convo-preview{
  font-size:12.5px;color:var(--muted);line-height:1.5;
  overflow:hidden;display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.convo-time{font-size:11px;color:var(--faint);margin-top:6px;font-variant-numeric:tabular-nums;}

.convo-chat-pane{display:flex;flex-direction:column;min-width:0;min-height:0;}
.convo-chat-head{
  padding:16px 22px;
  border-bottom:1px solid var(--border);
}
.convo-chat-title{font-size:14.5px;font-weight:600;}
.convo-chat-sub{font-size:12px;color:var(--faint);margin-top:2px;font-variant-numeric:tabular-nums;}
.convo-messages{
  flex:1;overflow-y:auto;
  min-height:0;
  padding:24px;
  display:flex;flex-direction:column;gap:12px;
}
.bubble{
  max-width:72%;
  padding:11px 15px;
  border-radius:14px;
  font-size:13.5px;line-height:1.65;
  white-space:pre-wrap;overflow-wrap:anywhere;
}
.bubble.user{
  align-self:flex-end;
  background:var(--accent);color:#fff;
  border-bottom-right-radius:5px;
}
.bubble.bot{
  align-self:flex-start;
  background:var(--surface-2);
  border:1px solid var(--border);
  border-bottom-left-radius:5px;
}
.convo-empty{margin:auto;color:var(--faint);font-size:13.5px;text-align:center;padding:24px;}

/* Conversation preview cards (dashboard) */
.convo-card{
  background:var(--surface-2);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:15px 17px;
  margin-bottom:12px;
}
.convo-card:last-child{margin-bottom:0;}
.convo-card-time{font-size:11.5px;color:var(--faint);margin-bottom:7px;font-variant-numeric:tabular-nums;}
.convo-card-text{
  font-size:13px;line-height:1.65;color:var(--text);
  white-space:pre-wrap;
  max-height:66px;overflow:hidden;
}

/* ============ RESPONSIVE ============ */
@media(max-width:960px){
  .shell{flex-direction:column;}
  .sidebar{
    position:static;width:100%;
    flex-direction:row;align-items:center;
    padding:12px 16px;gap:6px;
    border-right:none;border-bottom:1px solid var(--border);
    overflow-x:auto;
  }
  .sidebar-logo{padding:0 10px 0 0;flex-shrink:0;}
  .sidebar-logo img{width:104px;}
  .side-label{display:none;}
  .side-link{white-space:nowrap;padding:8px 12px;font-size:13px;}
  .side-link svg{display:none;}
  .sidebar-foot{margin-top:0;margin-left:auto;flex-direction:row;align-items:center;}
  .side-user{display:none;}
  .logout-btn{white-space:nowrap;width:auto;}
  .logout-btn span{display:none;}
  .main{margin-left:0;padding:22px 18px 48px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .chart-grid{grid-template-columns:1fr;}
  .convo-shell{grid-template-columns:1fr;height:auto;}
  .convo-list-pane{border-right:none;border-bottom:1px solid var(--border);max-height:320px;}
  .convo-chat-pane{height:60vh;}
  .bubble{max-width:88%;}
}
@media(max-width:520px){
  .stat-grid{grid-template-columns:1fr 1fr;}
  .stat-value{font-size:24px;}
  .page-title{font-size:20px;}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;}
}