:root {
  --bg: #EEF0F3;
  --panel: #FFFFFF;
  --border: #C7CDD6;
  --border-dark: #9AA4B2;
  --text: #1F2937;
  --grey: #5B6472;
  --blue: #2F5FA8;
  --blue-dark: #24487F;
  --danger: #B3261E;
  --font: Arial, "Segoe UI", Helvetica, sans-serif;
  --mono: "JetBrains Mono", Consolas, monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: var(--font); background: var(--bg); color: var(--text); font-size: 14px;
  min-height: 100vh; display: flex; flex-direction: column;
}
a { color: var(--blue); }

.demo-banner {
  background: #1F2937; color: #E5E7EB; text-align: center; padding: 8px 16px; font-size: 0.78rem;
}
.demo-banner a { color: #93C5FD; font-weight: 600; text-decoration: underline; }

.erp-shell { flex: 1; display: flex; flex-direction: column; }
.erp-topbar {
  background: #1F2937; color: #D1D5DB; padding: 8px 18px; font-size: 0.76rem; display: flex;
  justify-content: space-between; letter-spacing: 0.02em;
}
.erp-topbar b { color: #fff; }

.erp-main { flex: 1; display: flex; align-items: center; justify-content: center; padding: 40px 16px; }

.erp-card {
  width: 380px; max-width: 100%; background: var(--panel); border: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(20,20,20,0.06);
}
.erp-card-head {
  border-bottom: 1px solid var(--border); padding: 20px 26px 16px; text-align: center;
}
.erp-logo {
  width: 38px; height: 38px; background: var(--blue); color: #fff; display: flex; align-items: center;
  justify-content: center; font-weight: 700; font-size: 0.95rem; margin: 0 auto 10px;
}
.erp-card-head h1 { font-size: 1.05rem; margin: 0 0 2px; font-weight: 700; }
.erp-card-head p { margin: 0; color: var(--grey); font-size: 0.78rem; }

.erp-body { padding: 22px 26px 26px; }
.erp-field { margin-bottom: 16px; }
.erp-field label {
  display: block; font-size: 0.74rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--grey); margin-bottom: 5px;
}
.erp-input-wrap { position: relative; }
.erp-field input {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border-dark); background: #fff; font-size: 0.88rem;
  font-family: var(--font); color: var(--text); border-radius: 0;
}
.erp-field input:focus { outline: 2px solid var(--blue); outline-offset: -1px; }
.erp-field input[type="password"], .erp-field input.has-toggle { padding-right: 38px; }

.eye-toggle {
  position: absolute; right: 0; top: 0; bottom: 0; width: 36px; border: none; background: transparent;
  cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--grey);
}
.eye-toggle:hover { color: var(--text); }
.eye-toggle svg { width: 18px; height: 18px; }
.eye-toggle .eye-off { display: none; }
.eye-toggle.is-visible .eye-on { display: none; }
.eye-toggle.is-visible .eye-off { display: block; }

.erp-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; font-size: 0.82rem; }
.erp-check { display: flex; align-items: center; gap: 6px; color: var(--grey); }
.erp-check input { width: 14px; height: 14px; }
.erp-forgot { font-size: 0.8rem; }

.erp-btn {
  width: 100%; padding: 10px; background: var(--blue); color: #fff; border: 1px solid var(--blue-dark);
  font-size: 0.88rem; font-weight: 700; cursor: pointer; border-radius: 0; letter-spacing: 0.02em;
}
.erp-btn:hover { background: var(--blue-dark); }

.erp-card-foot {
  border-top: 1px solid var(--border); padding: 12px 26px; text-align: center; font-size: 0.72rem;
  color: var(--grey); font-family: var(--mono); background: #FAFBFC;
}

.erp-panel { display: block; }
.erp-panel[hidden] { display: none; }
.erp-alert {
  background: #FDECEA; border: 1px solid #F3C6C2; color: var(--danger); font-size: 0.78rem;
  padding: 9px 12px; margin-bottom: 16px;
}
.erp-note { font-size: 0.8rem; color: var(--grey); margin: 0 0 18px; line-height: 1.5; }
.erp-back { display: inline-block; margin-top: 4px; font-size: 0.8rem; }

.erp-breakout {
  text-align: center; margin-top: 18px; font-size: 0.78rem; color: var(--grey);
}
.erp-breakout a { font-weight: 600; }