:root {
  --brand: #1c7ed6;
  --brand-dark: #1864ab;
  --ink: #1b2430;
  --muted: #6b7684;
  --line: #e3e8ef;
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  letter-spacing: -.006em;
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  background: #f4f6fa;
}

/* ===== Panel kiri (visual) ===== */
.visual-panel {
  flex: 1.2;
  position: relative;
  display: none;
  background: url('../../images/login-background2.jpg') center/cover no-repeat;
  overflow: hidden;
}
.visual-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(12, 36, 64, .15) 0%, rgba(16, 54, 94, .55) 55%, rgba(10, 32, 58, .85) 100%);
}
.visual-caption {
  position: absolute;
  z-index: 1;
  bottom: 48px;
  left: 48px;
  right: 48px;
  color: #fff;
}
.visual-caption h2 {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: .5rem;
  text-shadow: 0 2px 12px rgba(0,0,0,.35);
}
.visual-caption p {
  font-size: .95rem;
  opacity: .85;
  max-width: 420px;
  text-shadow: 0 1px 8px rgba(0,0,0,.4);
}

/* ===== Panel kanan (form) ===== */
.form-panel {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
}
.form-card {
  width: 100%;
  max-width: 400px;
}
.brand-logo {
  display: block;
  width: 210px;
  max-width: 70%;
  margin: 0 auto 28px;
}
.form-card h1 {
  font-size: 1.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 6px;
}
.form-card .subtitle {
  text-align: center;
  color: var(--muted);
  font-size: .92rem;
  margin-bottom: 28px;
}

.alert-error {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff0f0;
  border: 1px solid #ffc9c9;
  color: #c92a2a;
  font-size: .88rem;
  border-radius: 10px;
  padding: 11px 14px;
  margin-bottom: 20px;
}

.field {
  position: relative;
  margin-bottom: 16px;
}
.field .icon-left {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: #9aa4b2;
  font-size: .9rem;
  pointer-events: none;
  transition: color .2s;
}
.field input {
  width: 100%;
  height: 52px;
  padding: 0 48px 0 44px;
  font: inherit;
  font-size: .95rem;
  color: var(--ink);
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.field input::placeholder { color: #9aa4b2; }
.field input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(28, 126, 214, .12);
}
.field input:focus ~ .icon-left { color: var(--brand); }

.toggle-pass {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: none;
  color: #9aa4b2;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  cursor: pointer;
  transition: color .2s, background .2s;
}
.toggle-pass:hover { color: var(--brand); background: #f0f6fd; }

.btn-login {
  width: 100%;
  height: 52px;
  margin-top: 6px;
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 8px 20px -6px rgba(28, 126, 214, .5);
  transition: transform .15s, box-shadow .15s, filter .15s;
}
.btn-login:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
  box-shadow: 0 12px 24px -6px rgba(28, 126, 214, .55);
}
.btn-login:active { transform: translateY(0); }

.footer-note {
  text-align: center;
  color: #9aa4b2;
  font-size: .8rem;
  margin-top: 32px;
}

/* ===== Responsif ===== */
@media (min-width: 900px) {
  .visual-panel { display: block; }
}
@media (max-width: 899px) {
  body {
    background: url('../../images/login-background2.jpg') center/cover no-repeat fixed;
  }
  .form-panel { padding: 24px 16px; }
  .form-card {
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(8px);
    border-radius: 20px;
    padding: 36px 28px;
    box-shadow: 0 24px 60px -12px rgba(10, 32, 58, .45);
  }
}