:root{
  --brand-primary:#0a3e52;
  --brand-secondary:#1c7c8c;
  --brand-accent:#4bb1a7;
  --surface:#f3f6f9;
  --card:#ffffff;
  --text:#102028;
  --text-muted:#5d6a72;
  --border:rgba(12,52,66,0.12);
}
*,
*::before,
*::after{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  font-family: "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color:var(--text);
  background:radial-gradient(circle at top right, rgba(28,124,140,0.16), transparent 45%), var(--surface);
}
.auth-layout{
  min-height:100vh;
  display:grid;
  grid-template-columns:minmax(320px, 48vw) minmax(320px, 1fr);
  background:linear-gradient(140deg, rgba(10,62,82,0.85), rgba(10,62,82,0.35)), url('https://api.grupoginseng.com.br/content-thumbs/foto-ginseng-gptw.jpg') center/cover no-repeat;
}
.auth-hero{
  position:relative;
  padding:64px 72px;
  display:flex;
  align-items:center;
  color:#f4fbff;
  overflow:hidden;
}

/* Snowflakes container */
.snowflakes-container{
  position:absolute;
  inset:0;
  pointer-events:none;
  z-index:1;
  overflow:hidden;
}
.snowflake{
  position:absolute;
  top:-20px;
  color:rgba(255,255,255,0.85);
  font-size:1rem;
  text-shadow:0 0 4px rgba(255,255,255,0.5);
  animation:snowfall linear infinite;
  will-change:transform;
}
.snowflake::before{
  content:"❄";
  display:block;
}
@keyframes snowfall{
  0%{
    transform:translateY(0) rotate(0deg) translateX(0);
    opacity:1;
  }
  50%{
    opacity:0.9;
  }
  100%{
    transform:translateY(100vh) rotate(360deg) translateX(30px);
    opacity:0.4;
  }
}
@keyframes sway{
  0%,100%{transform:translateX(0);}
  25%{transform:translateX(15px);}
  75%{transform:translateX(-15px);}
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(160deg, rgba(10,62,82,0.85) 0%, rgba(28,124,140,0.65) 45%, rgba(20,60,80,0.85) 100%);
  backdrop-filter:blur(2px);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  max-width:480px;
  z-index:1;
}
.hero-logo-top{
  position:absolute;
  top:20px;
  right:20px;
  z-index:2;
}
.hero-logo-top img{
  height:64px;
  width:auto;
  display:block;
  filter:drop-shadow(0 6px 18px rgba(0,0,0,0.32));
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  background:rgba(255,255,255,0.12);
  border:1px solid rgba(255,255,255,0.18);
  margin-bottom:20px;
}
.auth-hero h1{
  font-size:32px;
  line-height:1.25;
  margin:0 0 16px;
}
.auth-hero p{
  margin:0 0 28px;
  font-size:16px;
  color:rgba(244,251,255,0.85);
}
.hero-highlights{
  margin:0 0 40px;
  padding:0;
  list-style:none;
  display:grid;
  gap:16px;
}
.hero-highlights li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:12px 16px;
  border-radius:14px;
  background:rgba(255,255,255,0.10);
  border:1px solid rgba(255,255,255,0.12);
  font-size:14px;
  line-height:1.45;
}
.hero-highlights li::before{
  content:"•";
  font-size:18px;
  line-height:1;
  color:rgba(75,177,167,0.9);
  margin-top:-1px;
}
.hero-footer{
  font-size:13px;
  color:rgba(244,251,255,0.75);
}
.auth-panel{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:64px 48px;
  background:linear-gradient(180deg, rgba(255,255,255,0.94), rgba(255,255,255,0.92));
}
.login-card{
  position:relative;
  width:min(420px, 100%);
  background:var(--card);
  border-radius:24px;
  padding:40px 40px 36px;
  box-shadow:
    0 18px 45px rgba(16,32,40,0.08),
    0 3px 12px rgba(16,32,40,0.08);
  border:1px solid rgba(12,52,66,0.04);
}

/* Santa Hat */
.santa-hat{
  position:absolute;
  top:-60px;
  right:-30px;
  width:100px;
  height:auto;
  transform:rotate(25deg);
  z-index:10;
  filter:drop-shadow(0 4px 12px rgba(0,0,0,0.2));
  pointer-events:none;
}
.card-header h2{
  margin:0;
  font-size:26px;
  color:var(--brand-primary);
}
.card-header p{
  margin:8px 0 24px;
  font-size:14px;
  color:var(--text-muted);
}
.alert{
  background:rgba(192,69,79,0.12);
  color:#8c2f37;
  border:1px solid rgba(192,69,79,0.35);
  padding:12px 14px;
  border-radius:14px;
  font-size:13px;
  margin-bottom:22px;
}
.field{
  margin-bottom:22px;
}
.field-label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--text-muted);
  margin-bottom:6px;
  letter-spacing:0.02em;
}
.input-wrapper{
  position:relative;
  display:flex;
  align-items:center;
}
.input-icon{
  position:absolute;
  left:16px;
  width:20px;
  height:20px;
  color:rgba(12,52,66,0.40);
  stroke-width:1.8;
  pointer-events:none;
  transition:color 0.25s ease;
}
input[type="text"],
input[type="password"]{
  width:100%;
  padding:14px 16px 14px 52px;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(255,255,255,0.92);
  font-size:14px;
  color:var(--text);
  outline:none;
  transition:border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.7);
}
input[type="password"]{padding-right:48px;}
.input-wrapper:focus-within .input-icon{
  color:var(--brand-secondary);
}
input:focus{
  border-color:rgba(28,124,140,0.65);
  box-shadow:0 0 0 4px rgba(28,124,140,0.10);
  background:#fff;
}
.toggle-password{
  position:absolute;
  right:16px;
  background:none;
  border:0;
  padding:0;
  cursor:pointer;
  width:24px;
  height:24px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:rgba(12,52,66,0.45);
  transition:color 0.2s ease;
}
.toggle-password:hover{color:var(--brand-secondary);}
.toggle-password svg{width:18px;height:18px;stroke-width:1.8;}
.toggle-password .eye-closed{display:none;}
.toggle-password.active .eye-open{display:none;}
.toggle-password.active .eye-closed{display:block;}
.btn-primary{
  width:100%;
  padding:14px 16px;
  border:0;
  border-radius:14px;
  color:#fff;
  font-weight:600;
  font-size:15px;
  cursor:pointer;
  background:linear-gradient(120deg, var(--brand-primary), var(--brand-secondary));
  box-shadow:0 12px 24px rgba(10,62,82,0.28);
  position:relative;
  overflow:hidden;
  transition:transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}
.btn-primary:hover{
  transform:translateY(-1px);
  filter:brightness(1.03);
  box-shadow:0 16px 32px rgba(10,62,82,0.32);
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:0 10px 20px rgba(10,62,82,0.28);
}
.btn-text,
.btn-loader{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  transition:opacity 0.2s ease, transform 0.2s ease;
}
.btn-loader{
  position:absolute;
  inset:0;
  opacity:0;
  transform:translateY(10px);
}
.btn-primary.loading .btn-text{
  opacity:0;
  transform:translateY(-10px);
}
.btn-primary.loading .btn-loader{
  opacity:1;
  transform:translateY(0);
}
.btn-primary.loading{
  cursor:not-allowed;
  filter:brightness(0.96);
}
.spinner{
  width:18px;
  height:18px;
  border:2px solid rgba(255,255,255,0.35);
  border-top:2px solid #fff;
  border-radius:50%;
  animation:spin 1s linear infinite;
}
@keyframes spin{
  to{transform:rotate(360deg);}
}
.card-footer{
  margin-top:28px;
  font-size:13px;
  color:var(--text-muted);
  text-align:center;
}
.badge-gptw{
  position:fixed;
  top:20px;
  left:20px;
  z-index:5;
}
.badge-gptw img{
  height:110px;
  width:auto;
  display:block;
  filter:drop-shadow(0 6px 16px rgba(0,0,0,0.25));
}
@media (max-width: 1240px){
  .auth-layout{
    grid-template-columns:1fr minmax(320px, 420px);
  }
  .auth-hero{padding:56px 48px;}
}
@media (max-width: 960px){
  .auth-layout{
    grid-template-columns:1fr;
    grid-template-rows:1fr;
    min-height:100vh;
    position:relative;
    background:linear-gradient(140deg, rgba(10,62,82,0.85), rgba(10,62,82,0.35)), url('https://api.grupoginseng.com.br/content-thumbs/foto-ginseng-gptw.jpg') center/cover no-repeat;
  }
  .auth-hero{
    position:absolute;
    inset:0;
    min-height:100vh;
    padding:0;
    z-index:1;
  }
  .hero-inner{
    display:none;
  }
  .hero-tag{
    display:none;
  }
  .hero-logo-top{
    position:absolute;
    top:20px;
    right:20px;
    left:auto;
    transform:none;
    z-index:5;
  }
  .hero-logo-top img{height:50px;}
  .auth-panel{
    position:relative;
    z-index:2;
    background:transparent;
    display:flex;
    align-items:center;
    justify-content:center;
    min-height:100vh;
    padding:100px 24px 40px;
  }
  .login-card{
    background:rgba(255,255,255,0.97);
    backdrop-filter:blur(10px);
    box-shadow:0 20px 60px rgba(0,0,0,0.3);
  }
  .badge-gptw{
    position:absolute;
    top:20px;
    left:20px;
    bottom:auto;
    transform:none;
    z-index:10;
  }
  .badge-gptw img{height:70px;}
}
@media (max-width: 680px){
  .auth-panel{padding:90px 20px 40px;}
  .login-card{
    padding:28px 24px;
    border-radius:20px;
  }
  .hero-logo-top img{height:45px;}
  .santa-hat{
    width:70px;
    top:-45px;
    right:-20px;
  }
  .badge-gptw img{height:65px;}
}
@media (max-width: 520px){
  .auth-panel{padding:85px 16px 40px;}
  .login-card{
    padding:24px 20px;
    width:100%;
    max-width:360px;
  }
  .card-header h2{font-size:22px;}
  .card-header p{font-size:13px; margin:6px 0 20px;}
  .field{margin-bottom:18px;}
  .field-label{font-size:12px;}
  input[type="text"],
  input[type="password"]{
    padding:12px 14px 12px 46px;
    font-size:14px;
  }
  .input-icon{
    left:14px;
    width:18px;
    height:18px;
  }
  .btn-primary{
    padding:12px 14px;
    font-size:14px;
  }
  .card-footer{
    margin-top:20px;
    font-size:12px;
  }
  .santa-hat{
    width:60px;
    top:-38px;
    right:-15px;
  }
  .hero-logo-top{
    top:16px;
    right:16px;
  }
  .hero-logo-top img{height:40px;}
  .badge-gptw{
    top:16px;
    left:16px;
  }
  .badge-gptw img{height:60px;}
}
@media (max-width: 420px){
  .auth-panel{padding:80px 12px 40px;}
  .login-card{
    padding:22px 18px;
    border-radius:16px;
  }
  .card-header h2{font-size:20px;}
  .santa-hat{
    width:50px;
    top:-32px;
    right:-12px;
  }
  .hero-logo-top{
    top:12px;
    right:12px;
  }
  .hero-logo-top img{height:36px;}
  .badge-gptw{
    top:12px;
    left:12px;
  }
  .badge-gptw img{height:55px;}
}