/* ===== aigentmo — design system ===== */
:root{
  --teal-900:#0C2B28; --teal-800:#0F4D47; --teal-700:#0F766E; --teal-600:#0D9488;
  --teal-500:#14B8A6; --teal-400:#2DD4BF; --teal-300:#5EEAD4; --teal-100:#CCFBF1;
  --amber-500:#F59E0B; --amber-400:#FBBF24;
  --bg:#FAFAF7; --bg-elev:#FFFFFF; --bg-soft:#F2F4F2; --bg-chat:#F7F8F6;
  --text:#0C1B1A; --text-2:#4B5C5A; --text-3:#8B9A98; --border:#E6EAE8;
  --bubble-user:#0F766E; --bubble-user-text:#FFFFFF;
  --bubble-bot:#FFFFFF; --bubble-bot-text:#0C1B1A;
  --shadow-sm:0 1px 2px rgba(12,27,26,.06);
  --shadow-md:0 4px 16px rgba(12,27,26,.08);
  --shadow-lg:0 12px 40px rgba(12,27,26,.12);
  --radius:14px; --radius-lg:22px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
}
[data-theme="dark"]{
  --bg:#081312; --bg-elev:#0F1F1E; --bg-soft:#0C1A19; --bg-chat:#0B1716;
  --text:#E8F0EF; --text-2:#9DB4B1; --text-3:#637977; --border:#1C2E2C;
  --bubble-user:#0F766E; --bubble-bot:#132726; --bubble-bot-text:#E8F0EF;
  --shadow-sm:0 1px 2px rgba(0,0,0,.3);
  --shadow-md:0 4px 16px rgba(0,0,0,.35);
  --shadow-lg:0 12px 40px rgba(0,0,0,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);background:var(--bg);color:var(--text);
  -webkit-font-smoothing:antialiased;line-height:1.6;
  min-height:100vh;overflow-x:hidden;
}
.app{min-height:100vh;display:flex;flex-direction:column}
::selection{background:var(--teal-300);color:var(--teal-900)}

/* ===== Nav ===== */
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 28px;border-bottom:1px solid var(--border);
  background:rgba(250,250,247,.8);backdrop-filter:blur(12px);
  position:sticky;top:0;z-index:50;
}
[data-theme="dark"] .nav{background:rgba(8,19,18,.8)}
.nav-left{display:flex;align-items:center;gap:10px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.brand-logo{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center}
.brand-logo.sm{width:24px;height:24px}
.mo-img{width:100%;height:100%;object-fit:contain;display:block;pointer-events:none;-webkit-user-drag:none;user-select:none}
.brand-name{font-weight:800;font-size:19px;letter-spacing:-.02em}
.nav-center{display:flex;gap:6px}
.nav-link{
  text-decoration:none;color:var(--text-2);font-size:14px;font-weight:500;
  padding:7px 14px;border-radius:10px;transition:.15s;
}
.nav-link:hover{background:var(--bg-soft);color:var(--text)}
.nav-link.active{color:var(--teal-700);background:var(--teal-100)}
[data-theme="dark"] .nav-link.active{background:rgba(15,118,110,.18);color:var(--teal-400)}
.nav-right{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  background:var(--bg-elev);color:var(--text-2);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;transition:.15s;
}
.icon-btn:hover{color:var(--text);border-color:var(--text-3)}
.icon-moon{display:none}
[data-theme="dark"] .icon-sun{display:none}
[data-theme="dark"] .icon-moon{display:block}
.btn-primary{
  border:none;background:var(--teal-700);color:#fff;font-family:var(--font);
  font-weight:600;font-size:14px;padding:9px 18px;border-radius:10px;cursor:pointer;
  transition:.15s;
}
.btn-primary:hover{background:var(--teal-800)}

/* ===== Main split ===== */
.main{
  flex:1;display:grid;grid-template-columns:1fr 420px;
  gap:0;min-height:calc(100vh - 64px);max-width:1440px;margin:0 auto;width:100%;
}

/* ===== Chat panel ===== */
.chat-panel{display:flex;flex-direction:column;min-height:0;border-right:1px solid var(--border)}
.chat-scroll{flex:1;overflow-y:auto;padding:32px 40px 16px;scroll-behavior:smooth}
.welcome{display:flex;flex-direction:column;align-items:center;text-align:center;padding-top:5vh}
.welcome-mascot{width:96px;height:96px;margin-bottom:24px}
.welcome-mascot .mo-img{animation:moFloat 4s ease-in-out infinite}
@keyframes moFloat{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-5px) scale(1.03)}}
.welcome-title{font-size:30px;font-weight:800;letter-spacing:-.03em;margin-bottom:10px}
.grad{
  background:linear-gradient(120deg,var(--teal-600),var(--teal-400));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.welcome-sub{font-size:16px;color:var(--text-2);max-width:440px;margin-bottom:32px}
.suggest-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%;max-width:520px}
.suggest-card{
  display:flex;align-items:center;gap:12px;text-align:left;cursor:pointer;
  background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);
  padding:14px 16px;transition:.15s;font-family:var(--font);color:var(--text);
}
.suggest-card:hover{border-color:var(--teal-400);box-shadow:var(--shadow-md);transform:translateY(-1px)}
.suggest-emoji{font-size:22px;flex-shrink:0}
.suggest-text{font-size:14px;font-weight:500;line-height:1.35}

/* messages */
.msg{display:flex;gap:12px;margin-bottom:22px;max-width:760px;animation:fadeUp .3s ease}
.msg.user{flex-direction:row-reverse;margin-left:auto}
.msg-avatar{width:30px;height:30px;flex-shrink:0;margin-top:2px}
.msg-avatar.bot{display:inline-flex}
.msg-bubble{
  padding:12px 16px;border-radius:16px;font-size:15px;line-height:1.6;
  max-width:560px;white-space:pre-wrap;word-break:break-word;
}
.msg.user .msg-bubble{background:var(--bubble-user);color:var(--bubble-user-text);border-bottom-right-radius:5px}
.msg.bot .msg-bubble{background:var(--bubble-bot);color:var(--bubble-bot-text);border:1px solid var(--border);border-bottom-left-radius:5px;box-shadow:var(--shadow-sm)}
.msg.bot .msg-bubble strong{color:var(--teal-700)}
[data-theme="dark"] .msg.bot .msg-bubble strong{color:var(--teal-400)}
.typing{display:inline-flex;gap:4px;align-items:center;padding:4px 0}
.typing span{width:7px;height:7px;border-radius:50%;background:var(--text-3);animation:blink 1.4s infinite}
.typing span:nth-child(2){animation-delay:.2s}
.typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.3}30%{opacity:1}}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* step list inside bot messages */
.steps{margin:10px 0 4px;display:flex;flex-direction:column;gap:8px}
.step-row{display:flex;align-items:flex-start;gap:10px;font-size:14px}
.step-icon{
  width:20px;height:20px;border-radius:50%;flex-shrink:0;display:inline-flex;
  align-items:center;justify-content:center;font-size:11px;margin-top:1px;
}
.step-icon.done{background:var(--teal-500);color:#fff}
.step-icon.pending{background:var(--bg-soft);color:var(--text-3);border:1px solid var(--border)}
.step-icon.confirm{background:var(--amber-500);color:#fff}
.step-row.done .step-text{color:var(--text-2)}
.step-row.confirm .step-text{color:var(--text)}
.confirm-row{
  display:flex;gap:8px;margin-top:10px;
}
.confirm-btn{
  border:none;font-family:var(--font);font-weight:600;font-size:13px;
  padding:7px 16px;border-radius:9px;cursor:pointer;transition:.15s;
}
.confirm-btn.yes{background:var(--teal-700);color:#fff}
.confirm-btn.yes:hover{background:var(--teal-800)}
.confirm-btn.no{background:var(--bg-soft);color:var(--text-2);border:1px solid var(--border)}
.confirm-btn.no:hover{color:var(--text)}
.task-done{
  margin-top:12px;padding:10px 14px;border-radius:10px;
  background:var(--teal-100);color:var(--teal-800);font-size:14px;font-weight:600;
  display:flex;align-items:center;gap:8px;
}
[data-theme="dark"] .task-done{background:rgba(20,184,166,.15);color:var(--teal-300)}

/* ===== Composer ===== */
.composer{padding:14px 40px 22px;border-top:1px solid var(--border);background:var(--bg)}
.composer-box{
  display:flex;align-items:flex-end;gap:8px;background:var(--bg-elev);
  border:1px solid var(--border);border-radius:16px;padding:8px 8px 8px 16px;
  box-shadow:var(--shadow-sm);transition:.15s;max-width:760px;
}
.composer-box:focus-within{border-color:var(--teal-400);box-shadow:0 0 0 3px rgba(20,184,166,.12)}
.composer-input{
  flex:1;border:none;outline:none;background:transparent;resize:none;
  font-family:var(--font);font-size:15px;color:var(--text);line-height:1.5;
  max-height:140px;padding:7px 0;
}
.composer-input::placeholder{color:var(--text-3)}
.composer-send{
  width:36px;height:36px;border-radius:10px;border:none;cursor:pointer;
  background:var(--teal-700);color:#fff;display:inline-flex;align-items:center;
  justify-content:center;flex-shrink:0;transition:.15s;
}
.composer-send:hover{background:var(--teal-800)}
.composer-send:disabled{background:var(--border);color:var(--text-3);cursor:not-allowed}
.composer-hint{font-size:12px;color:var(--text-3);margin-top:8px;text-align:center}

/* ===== Phone panel ===== */
.phone-panel{
  display:flex;flex-direction:column;align-items:center;justify-content:flex-start;
  padding:40px 28px;background:var(--bg-soft);overflow:hidden;
}
.phone-wrap{display:flex;flex-direction:column;align-items:center;gap:16px;position:sticky;top:88px}
.phone{
  width:300px;height:620px;background:#0C1B1A;border-radius:46px;padding:12px;
  box-shadow:var(--shadow-lg),inset 0 0 0 2px rgba(255,255,255,.04);
  position:relative;flex-shrink:0;
}
.phone-notch{
  position:absolute;top:14px;left:50%;transform:translateX(-50%);
  width:110px;height:28px;background:#0C1B1A;border-radius:0 0 18px 18px;z-index:6;
}
.phone-screen{
  width:100%;height:100%;border-radius:36px;overflow:hidden;
  background:linear-gradient(160deg,#0F2322 0%,#0C1B1A 100%);
  position:relative;display:flex;flex-direction:column;
}
[data-theme="light"] .phone-screen{background:linear-gradient(160deg,#1A2E2C 0%,#0C1B1A 100%)}
.ph-status{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 24px 6px;color:#E8F0EF;font-size:13px;font-weight:600;
  z-index:3;flex-shrink:0;
}
.ph-time{font-variant-numeric:tabular-nums}
.ph-icons{display:flex;align-items:center;gap:5px}
.ph-agent{
  position:absolute;inset:0;z-index:5;display:flex;flex-direction:column;
  align-items:center;justify-content:center;pointer-events:none;
  background:rgba(8,19,18,.92);backdrop-filter:blur(8px);
  border-radius:36px;transition:opacity .3s;
}
.ph-agent.hidden{opacity:0;pointer-events:none}
.ph-agent-idle{display:flex;flex-direction:column;align-items:center;gap:14px}
.ph-mascot-mini{width:64px;height:64px}
.ph-agent-status{color:var(--teal-300);font-size:13px;font-weight:500}
.ph-agent-working{display:flex;flex-direction:column;align-items:center;gap:16px;width:100%;padding:0 24px}
.ph-agent-working .ph-mascot-mini{width:54px;height:54px;animation:bob 1.8s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.ph-tasks{width:100%;display:flex;flex-direction:column;gap:10px}
.ph-task{
  display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);
  font-size:13px;color:#E8F0EF;transition:.25s;
}
.ph-task .ph-task-icon{
  width:24px;height:24px;border-radius:50%;flex-shrink:0;display:inline-flex;
  align-items:center;justify-content:center;font-size:12px;
}
.ph-task .ph-task-icon.spin{background:var(--teal-600);animation:spin 1s linear infinite}
.ph-task .ph-task-icon.done{background:var(--teal-500);color:#fff}
.ph-task .ph-task-icon.wait{background:var(--amber-500);color:#fff}
.ph-task .ph-task-icon.todo{background:rgba(255,255,255,.1);color:rgba(255,255,255,.4)}
.ph-task.active{border-color:var(--teal-400);background:rgba(20,184,166,.1)}
.ph-task.done{opacity:.5}
@keyframes spin{to{transform:rotate(360deg)}}
.ph-task-text{flex:1;line-height:1.4}
.ph-task-detail{font-size:11px;color:rgba(255,255,255,.45);margin-top:2px}

.ph-home{flex:1;padding:8px 20px 0;display:flex;flex-direction:column;color:#E8F0EF;z-index:2}
.ph-widget{
  display:flex;justify-content:space-between;align-items:baseline;
  padding:14px 4px 18px;
}
.ph-widget-label{font-size:13px;color:rgba(255,255,255,.5)}
.ph-widget-val{font-size:22px;font-weight:700}
.ph-apps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px 8px;padding:0 4px}
.ph-app{display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;transition:.15s}
.ph-app:active{transform:scale(.92)}
.ph-app-icon{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;
  justify-content:center;font-size:24px;box-shadow:0 4px 12px rgba(0,0,0,.3);
}
.ph-app-name{font-size:11px;color:rgba(255,255,255,.8)}
.ph-dock{
  display:flex;justify-content:space-around;padding:14px 24px 26px;
  z-index:2;flex-shrink:0;
}
.ph-dock-app{
  width:48px;height:48px;border-radius:14px;background:rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:center;font-size:22px;
  backdrop-filter:blur(8px);
}
.phone-caption{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);
}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--teal-500);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(20,184,166,.4)}50%{opacity:.6;box-shadow:0 0 0 6px rgba(20,184,166,0)}}

/* ===== How section ===== */
.how{padding:80px 40px 60px;max-width:1100px;margin:0 auto;text-align:center}
.how-title{font-size:32px;font-weight:800;letter-spacing:-.03em;margin-bottom:12px}
.how-sub{font-size:16px;color:var(--text-2);margin-bottom:44px}
.how-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:left}
.how-step{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px}
.how-num{
  width:36px;height:36px;border-radius:50%;background:var(--teal-100);color:var(--teal-700);
  display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;
  margin-bottom:14px;
}
[data-theme="dark"] .how-num{background:rgba(15,118,110,.18);color:var(--teal-400)}
.how-step h3{font-size:17px;font-weight:700;margin-bottom:8px}
.how-step p{font-size:14px;color:var(--text-2);line-height:1.55}

/* ===== Footer ===== */
.footer{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;
  padding:28px 40px;border-top:1px solid var(--border);font-size:13px;color:var(--text-2);
}
.footer-left{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--text)}
.footer-links{display:flex;gap:20px}
.footer-links a{color:var(--text-2);text-decoration:none;transition:.15s}
.footer-links a:hover{color:var(--teal-700)}

/* ===== Responsive ===== */
@media(max-width:980px){
  .main{grid-template-columns:1fr}
  .phone-panel{display:none}
  .nav-center{display:none}
  .how-steps{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .nav{padding:12px 16px}
  .brand-name{font-size:17px}
  .nav-right .btn-primary{padding:8px 14px;font-size:13px}
  .chat-scroll{padding:24px 18px 12px}
  .composer{padding:12px 16px 18px}
  .welcome-title{font-size:24px}
  .welcome-sub{font-size:15px}
  .suggest-grid{grid-template-columns:1fr}
  .how{padding:56px 18px 40px}
  .how-title{font-size:26px}
  .how-steps{grid-template-columns:1fr}
  .footer{padding:22px 18px;flex-direction:column;text-align:center}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}