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

:root{
  --green:#0fa968;
  --green-dark:#0c8f57;
  --navy:#0f1729;
  --navy-2:#182338;
  --blue:#2f6feb;
  --bg:#f4f6fb;
  --card:#ffffff;
  --text:#0f1729;
  --muted:#6b7686;
  --border:#e7eaf1;
  --radius:16px;
  --shadow:0 8px 28px rgba(15,23,41,.06);
  --warn-bg:#fff9e6;
  --warn-border:#f5dd8a;
  --warn-text:#8a5a00;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:'Inter',sans-serif;
  background:var(--bg);
  color:var(--text);
}
h1,h2,h3,h4,.brand-text,.font-display{font-family:'Poppins',sans-serif;font-weight:700;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;}

/* ---------- Topbar ---------- */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 32px;background:#fff;border-bottom:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:10px;}
.brand-icon{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--blue),var(--green));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;
}
.brand-text{font-size:19px;letter-spacing:.2px;}
.brand-text b{color:var(--blue);}
.brand-text .hub-tag{
  background:var(--navy);color:#fff;font-size:10px;font-weight:700;
  padding:2px 6px;border-radius:5px;margin-left:4px;vertical-align:middle;
}
.topbar-right{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;background:#eef0f6;
  display:flex;align-items:center;justify-content:center;border:none;cursor:pointer;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:12px;font-weight:600;font-size:15px;
  border:none;cursor:pointer;transition:.15s ease;font-family:'Inter',sans-serif;
}
.btn-primary{background:var(--green);color:#fff;}
.btn-primary:hover{background:var(--green-dark);}
.btn-dark{background:var(--navy);color:#fff;}
.btn-dark:hover{background:#000;}
.btn-outline{background:#fff;color:var(--text);border:1px solid var(--border);}
.btn-outline:hover{background:#f7f8fc;}
.btn-block{width:100%;}
.btn-danger-outline{background:#fdecec;color:#e0344c;}
.btn-danger-outline:hover{background:#fbdbdb;}

/* ---------- Landing hero ---------- */
.hero{text-align:center;padding:60px 20px 30px;background:#fff;}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;
  border:1px solid #cdeee0;border-radius:30px;color:var(--green-dark);
  font-weight:600;font-size:13px;background:#eefdf6;margin-bottom:20px;
}
.pill .dot{width:7px;height:7px;background:var(--green);border-radius:50%;}
.hero h1{font-size:34px;line-height:1.2;margin:0 0 6px;}
.hero h1 .accent{color:var(--blue);}
.hero p{max-width:560px;margin:16px auto 28px;color:var(--muted);font-size:15px;line-height:1.6;}
.hero-actions{max-width:340px;margin:0 auto;}

/* ---------- Cost calculator ---------- */
.calc-card{max-width:520px;margin:0 auto 20px;text-align:left;}
.calc-card label{font-size:13px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;}
.calc-card input[type=number]{
  width:100%;padding:14px;border:1px solid var(--border);border-radius:10px;
  font-size:16px;margin:8px 0 14px;background:#f8f9fc;
}
.calc-result{font-size:15px;color:var(--text);}
.calc-result b{color:var(--green-dark);font-size:20px;}

/* ---------- Sections ---------- */
.section{padding:50px 20px;max-width:1000px;margin:0 auto;}
.section h2{text-align:center;font-size:28px;margin-bottom:8px;}
.section > p.sub{text-align:center;color:var(--muted);margin-bottom:32px;font-size:15px;}

/* ---------- Cards ---------- */
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);
}
.pricing-card{max-width:420px;margin:0 auto;text-align:left;}
.pricing-card .price{font-size:38px;font-weight:800;margin:4px 0 16px;display:flex;align-items:baseline;gap:4px;color:var(--navy);}
.pricing-card ul{list-style:none;padding:0;margin:0 0 20px;}
.pricing-card li{display:flex;align-items:center;gap:10px;padding:6px 0;color:#374151;font-size:14px;}
.pricing-card li:before{content:"✓";color:var(--green);font-weight:800;}

.footer{text-align:center;padding:30px 20px;color:var(--muted);font-size:13px;border-top:1px solid var(--border);background:#fff;}
.footer a{margin:0 8px;color:var(--muted);}

/* ---------- Auth pages ---------- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg);padding:30px 16px;}
.auth-card{width:100%;max-width:420px;background:#fff;border-radius:20px;padding:38px 32px;box-shadow:var(--shadow);text-align:center;}
.auth-card .brand{justify-content:center;margin-bottom:14px;}
.auth-card h2{margin:0 0 4px;font-size:23px;}
.auth-card p.sub{color:var(--muted);margin:0 0 24px;font-size:14px;}
.field{text-align:left;margin-bottom:16px;}
.field label{display:block;font-weight:600;font-size:13px;margin-bottom:6px;color:var(--text);}
.field input,.field textarea,.field select{
  width:100%;padding:13px 14px;border:1px solid var(--border);border-radius:10px;
  background:#f8f9fc;font-family:'Inter',sans-serif;font-size:15px;
}
.field .row-between{display:flex;justify-content:space-between;align-items:center;}
.field .row-between a{color:var(--blue);font-weight:600;font-size:13px;}
.divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px;margin:20px 0;}
.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--border);}
.google-btn{display:flex;align-items:center;justify-content:center;gap:10px;}
.switch-line{margin-top:18px;color:var(--muted);font-size:14px;}
.switch-line a{color:var(--blue);font-weight:700;}
.alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:14px;text-align:left;}
.alert-error{background:#fdecec;color:#c0293f;}
.alert-success{background:#e8fbea;color:#188a2c;}
.alert-info{background:#eaf0ff;color:var(--blue);}
.alert-warn{background:var(--warn-bg);border:1px solid var(--warn-border);color:var(--warn-text);}

/* ---------- App shell ---------- */
.app-shell{display:flex;min-height:100vh;}
.sidebar{width:270px;flex-shrink:0;background:#fff;border-right:1px solid var(--border);padding:20px 0;}
.sidebar .brand{padding:0 22px 20px;}
.nav-item{
  display:flex;align-items:center;gap:12px;padding:11px 22px;color:#4b5264;
  font-weight:600;font-size:15px;cursor:pointer;margin:2px 10px;border-radius:10px;
}
.nav-item .nav-ic{
  width:32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0;
}
.nav-item.active{background:#eef1ff;color:var(--blue);}
.nav-item:hover{background:#f7f8fc;}
.nav-ic.ic-blue{background:#e7edff;color:var(--blue);}
.nav-ic.ic-green{background:#e6fbf0;color:var(--green);}
.nav-ic.ic-orange{background:#fff3e0;color:#e08a1f;}
.nav-ic.ic-skyblue{background:#e5f3ff;color:#1c8fe0;}
.nav-ic.ic-purple{background:#f2e9ff;color:#8a3ff0;}
.nav-ic.ic-red{background:#ffe9ec;color:#e0344c;}
.nav-ic.ic-teal{background:#e3faf3;color:#0fa968;}
.nav-ic.ic-gray{background:#eef0f6;color:#6b7686;}

.main{flex:1;min-width:0;}
.appbar{display:flex;align-items:center;justify-content:space-between;padding:18px 28px;background:#fff;border-bottom:1px solid var(--border);}
.appbar h1{font-size:19px;margin:0;font-weight:700;}
.content{padding:26px;max-width:1100px;}

.page-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:22px;}
.page-head .ic{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0;}
.page-head h2{margin:0 0 4px;font-size:22px;}
.page-head p{margin:0;color:var(--muted);font-size:14px;}

.stat-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 24px;display:flex;align-items:center;justify-content:space-between;
  margin-bottom:18px;box-shadow:var(--shadow);
}
.stat-card .label{color:var(--muted);font-size:13px;margin-bottom:8px;}
.stat-card .value{font-size:28px;font-weight:800;}
.stat-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:18px;}
.stat-icon.green{background:#e6fbf0;color:#0fa968;}
.stat-icon.blue{background:#e7edff;color:var(--blue);}
.stat-icon.purple{background:#f3e9ff;color:#8a3ff0;}
.stat-icon.orange{background:#fff1e0;color:#f0862d;}

table{width:100%;border-collapse:collapse;background:#fff;}
table th{text-align:left;font-size:11px;letter-spacing:.05em;color:var(--muted);text-transform:uppercase;padding:14px 16px;border-bottom:1px solid var(--border);}
table td{padding:14px 16px;border-bottom:1px solid var(--border);font-size:14px;}
.table-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.badge{padding:5px 12px;border-radius:20px;font-size:12px;font-weight:700;}
.badge-sent,.badge-completed,.badge-open,.badge-active{background:#e6fbf0;color:#0fa968;}
.badge-failed,.badge-closed{background:#f1f2f6;color:#6b7280;}
.badge-pending{background:#fff2df;color:#dd8a1f;}
.badge-suspended{background:#ffe9ec;color:#e0344c;}

.notice-banner{background:#eaf0ff;border:1px solid #cfd8f7;border-radius:var(--radius);padding:16px 18px;margin-bottom:22px;color:var(--blue);font-size:14px;}
.notice-banner b{display:block;margin-bottom:2px;color:var(--navy);}
.warn-banner{background:var(--warn-bg);border:1px solid var(--warn-border);border-radius:var(--radius);padding:16px 18px;margin-bottom:22px;display:flex;gap:12px;}
.warn-banner .ic{font-size:18px;}
.warn-banner b{display:block;margin-bottom:4px;color:var(--warn-text);}
.warn-banner p{margin:0;color:var(--warn-text);font-size:14px;line-height:1.5;}
.warn-banner a{color:var(--warn-text);font-weight:700;text-decoration:underline;}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.form-actions{margin-top:20px;}
.chip{background:#eef0f6;padding:4px 10px;border-radius:8px;font-size:12px;color:var(--muted);font-weight:600;}
.code-block{background:#0f1729;color:#7ee8b0;padding:16px;border-radius:10px;font-family:monospace;font-size:12.5px;overflow-x:auto;white-space:pre-wrap;word-break:break-all;}
.link-blue{color:var(--blue);font-weight:600;}
.small-muted{color:var(--muted);font-size:13px;}

.chat-thread{display:flex;flex-direction:column;gap:14px;}
.msg{max-width:70%;padding:12px 16px;border-radius:14px;font-size:14px;}
.msg.user{align-self:flex-end;background:var(--blue);color:#fff;border-bottom-right-radius:4px;}
.msg.admin{align-self:flex-start;background:#f1f3fa;color:var(--text);border-bottom-left-radius:4px;}
.msg .who{font-size:11px;opacity:.75;margin-bottom:4px;font-weight:700;}

/* ---------- Empty state ---------- */
.empty-state{text-align:center;padding:60px 20px;}
.empty-state .ic-wrap{
  width:88px;height:88px;border-radius:20px;background:#eef0f6;color:#a7adbb;
  display:flex;align-items:center;justify-content:center;font-size:34px;margin:0 auto 20px;
}
.empty-state h3{margin:0 0 8px;font-size:20px;}
.empty-state p{color:var(--muted);margin:0 0 22px;font-size:14px;}

/* ---------- Token box ---------- */
.token-box{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  border:1px solid var(--border);border-radius:10px;padding:14px 16px;background:#f8f9fc;
  font-family:monospace;font-size:15px;letter-spacing:.5px;
}
.token-actions{display:flex;gap:8px;}
.token-actions button{
  width:36px;height:36px;border-radius:8px;border:1px solid var(--border);background:#fff;cursor:pointer;
}

/* ---------- Tabs ---------- */
.tab-bar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px;}
.tab-btn{padding:9px 16px;border-radius:9px;border:1px solid var(--border);background:#fff;font-weight:600;font-size:13px;cursor:pointer;color:var(--muted);}
.tab-btn.active{background:var(--navy);color:#fff;border-color:var(--navy);}
.tab-panel{display:none;}
.tab-panel.active{display:block;}
.copy-btn{float:right;background:none;border:1px solid #2b3652;color:#9fb0d0;border-radius:6px;padding:4px 10px;font-size:11px;cursor:pointer;margin:-4px 0 8px;}

@media (max-width: 860px){
  .app-shell{flex-direction:column;}
  .sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border);}
  .grid-2,.grid-3{grid-template-columns:1fr;}
  .hero h1{font-size:28px;}
}