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

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

:root {
  --blue:    #2196f3;
  --blue-d:  #1565c0;
  --bg:      #0d1b2e;
  --card:    #112240;
  --border:  #1e3a5f;
  --text:    #e3f2fd;
  --muted:   #90caf9;
}

body {
  min-height: 100vh;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  overflow: hidden;
}

/* bg */
.bg-dots {
  position: fixed; inset: 0;
  background-image: radial-gradient(rgba(33,150,243,.08) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none; z-index: 0;
}
.bg-glow-top {
  position: fixed; top: -120px; left: 50%; transform: translateX(-50%);
  width: 500px; height: 400px;
  background: radial-gradient(ellipse, rgba(21,101,192,.25) 0%, transparent 65%);
  pointer-events: none; z-index: 0;
}
.bg-glow-bot {
  position: fixed; bottom: -80px; right: -60px;
  width: 300px; height: 300px;
  background: radial-gradient(ellipse, rgba(33,150,243,.10) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
}

.login-outer { position: relative; z-index: 1; width: 100%; max-width: 400px; padding: 20px; }

.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 28px 30px;
  box-shadow: 0 24px 64px rgba(0,0,0,.6), 0 0 0 1px rgba(33,150,243,.1);
}

/* brand */
.brand { margin-bottom: 28px; }
.logo-main { font-size: 30px; font-weight: 800; letter-spacing: 1.5px; line-height: 1; }
.logo-main .nsb { color: #42a5f5; text-shadow: 0 0 20px rgba(33,150,243,.6); }
.logo-main .it  { color: #fff; }
.logo-sub { font-size: 9px; color: var(--muted); letter-spacing: 4px; text-transform: uppercase; margin-top: 5px; }
.logo-bar { height: 2px; width: 65px; background: linear-gradient(90deg, #42a5f5, transparent); margin-top: 9px; border-radius: 2px; }
.logo-tag { font-size: 11px; color: #37577a; margin-top: 8px; }

/* alerts */
.alert { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-radius: 9px; font-size: 13px; margin-bottom: 18px; }
.alert-err  { background: rgba(239,83,80,.12); border: 1px solid rgba(239,83,80,.3); color: #ef9a9a; }
.alert-warn { background: rgba(255,152,0,.12); border: 1px solid rgba(255,152,0,.3); color: #ffcc80; }

/* fields */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 10px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .09em; margin-bottom: 6px; }
.field-wrap { position: relative; }
.field-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: #37577a; font-size: 14px; pointer-events: none; transition: color .2s; }
.field-wrap:focus-within .field-icon { color: #42a5f5; }
.field-wrap input {
  width: 100%; padding: 12px 42px 12px 38px;
  background: #0a1628; border: 1px solid var(--border);
  border-radius: 10px; color: var(--text); font-size: 14px;
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  outline: none; transition: border-color .2s, box-shadow .2s;
}
.field-wrap input::placeholder { color: #1e3a5f; }
.field-wrap input:focus { border-color: #42a5f5; box-shadow: 0 0 0 3px rgba(33,150,243,.15); }
.eye-btn { position: absolute; right: 11px; top: 50%; transform: translateY(-50%); background: none; border: none; color: var(--muted); cursor: pointer; padding: 4px; font-size: 14px; transition: color .2s; }
.eye-btn:hover { color: #42a5f5; }

/* button */
.login-btn {
  width: 100%; padding: 14px;
  background: linear-gradient(135deg, #2196f3 0%, #1565c0 60%, #0d47a1 100%);
  border: none; border-radius: 10px;
  color: #fff; font-size: 15px; font-weight: 800;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  gap: 8px; letter-spacing: .7px; margin-top: 4px;
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  box-shadow: 0 6px 24px rgba(21,101,192,.5);
  transition: all .2s;
}
.login-btn:hover  { filter: brightness(1.1); box-shadow: 0 8px 32px rgba(21,101,192,.7); transform: translateY(-1px); }
.login-btn:active { transform: scale(.98); }

.login-footer { text-align: center; margin-top: 18px; font-size: 10px; color: #1e3a5f; letter-spacing: .5px; }

@media (max-width: 440px) {
  .login-card { padding: 28px 18px 24px; border-radius: 16px; }
  .logo-main { font-size: 26px; }
}