@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+Thai:wght@400;500;600;700&display=swap');

:root{
  --primary:#2fc7a0;
  --primary-dark:#13a884;
  --secondary:#1177c9;
  --bg:#eef5f8;
  --surface:#ffffff;
  --text:#173042;
  --muted:#718391;
  --border:#dfe9ee;
  --danger:#ef5350;
  --shadow:0 16px 40px rgba(35,75,95,.12);
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family:"IBM Plex Sans Thai",sans-serif;
  color:var(--text);
  background:var(--bg);
}
button,input,select{font:inherit}
a{text-decoration:none;color:inherit}

.brand{
  display:flex;align-items:center;gap:12px;font-weight:700;font-size:20px;
}
.logo{
  width:44px;height:44px;border-radius:14px;
  background:linear-gradient(145deg,var(--primary),var(--secondary));
  color:#fff;display:grid;place-items:center;font-size:22px;
  box-shadow:0 10px 22px rgba(17,119,201,.2);
}

.btn{
  border:0;border-radius:12px;padding:11px 18px;cursor:pointer;
  font-weight:600;transition:.2s;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff}

.input{
  width:100%;border:1px solid var(--border);background:#fff;
  padding:12px 14px;border-radius:12px;outline:none;
}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,199,160,.15)}
.label{display:block;margin-bottom:6px;font-weight:600;font-size:14px}
.form-group{margin-bottom:16px}

.login-page{
  min-height:100vh;display:grid;grid-template-columns:1.15fr .85fr;
}
.login-visual{
  position:relative;overflow:hidden;padding:70px;
  background:linear-gradient(150deg,#2fd0a8,#0d78c9);
  color:#fff;display:flex;flex-direction:column;justify-content:center;
}
.login-visual:before,.login-visual:after{
  content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.12);
}
.login-visual:before{width:360px;height:360px;right:-120px;top:-80px}
.login-visual:after{width:280px;height:280px;left:-120px;bottom:-90px}
.login-visual h1{font-size:48px;line-height:1.15;margin:28px 0 12px;max-width:570px}
.login-visual p{font-size:18px;opacity:.88;max-width:530px}
.phone-preview{
  margin-top:34px;width:320px;background:#fff;border-radius:28px;
  padding:16px;color:var(--text);box-shadow:0 28px 60px rgba(0,0,0,.18);
  transform:rotate(-3deg);
}
.preview-cover{
  height:155px;border-radius:22px;background:linear-gradient(145deg,#2fc7a0,#1177c9);
  display:grid;place-items:center;color:white;font-size:58px;
}
.preview-row{display:flex;align-items:center;gap:12px;padding:12px 3px 0}
.preview-dot{width:38px;height:38px;border-radius:50%;background:#edf4f7}
.login-panel{display:flex;align-items:center;justify-content:center;padding:42px}
.login-card{width:min(430px,100%);background:#fff;padding:36px;border-radius:24px;box-shadow:var(--shadow)}
.login-card h2{margin:25px 0 5px;font-size:30px}
.login-card .sub{color:var(--muted);margin-bottom:28px}
.login-actions{display:flex;justify-content:space-between;align-items:center;font-size:14px;margin:4px 0 22px}
.demo-note{margin-top:18px;background:#f2f8fa;padding:12px;border-radius:12px;color:var(--muted);font-size:13px}
.login-divider{display:flex;align-items:center;gap:12px;margin:17px 0;color:var(--muted);font-size:12px}
.login-divider:before,.login-divider:after{height:1px;flex:1;background:var(--border);content:""}
.google-login{min-height:46px;display:flex;gap:11px;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:12px;background:#fff;color:var(--text);font-size:14px;font-weight:600;transition:.2s}
.google-login:hover{border-color:#b8cbd5;background:#f8fbfc;transform:translateY(-1px)}
.google-icon{width:20px;height:20px;display:block;flex:0 0 auto}
.account-switch{margin:18px 0 0;color:var(--muted);font-size:13px;text-align:center}
.account-switch a{color:var(--secondary);font-weight:700}
.register-card h2{margin-bottom:25px}
.register-card .form-group{margin-bottom:13px}
.form-message{min-height:18px;margin:4px 0 12px;font-size:12px;text-align:center}
.form-message.error{color:#c43e3e}.form-message.success{color:#168a6c}
.login-message{margin:0 0 16px;padding:12px 14px;border:1px solid transparent;border-radius:12px;font-size:14px;font-weight:600;line-height:1.45;text-align:left}
.login-message.error{color:#a52222;background:#fff1f1;border-color:#ffcaca}
.login-message.success{color:#087455;background:#ebfff8;border-color:#b8efdc}
.btn:disabled{cursor:wait;opacity:.65;transform:none}
@media(max-height:780px) and (min-width:761px){.register-panel{padding-block:20px}.register-card{padding:27px 32px}.register-card .brand{margin-bottom:0}.register-card h2{margin-top:18px}}
.recovery-card .brand{margin-bottom:30px}.recovery-card h2{margin-top:0}

@media(max-width:760px){
  .login-page{grid-template-columns:1fr}.login-visual{display:none}.login-panel{padding:20px}
}