/* SISKA — halaman login modern */

:root {
  --siska-primary: #1e3a5f;
  --siska-primary-light: #2d5a8a;
  --siska-accent: #0d9488;
  --siska-accent-hover: #0f766e;
  --siska-surface: #ffffff;
  --siska-muted: #64748b;
  --siska-border: #e2e8f0;
  --siska-text: #0f172a;
  --siska-danger-bg: #fef2f2;
  --siska-danger-text: #b91c1c;
  --siska-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.15);
  --siska-radius: 14px;
  --siska-font: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

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

.siska-login-page {
  margin: 0;
  min-height: 100vh;
  font-family: var(--siska-font);
  color: var(--siska-text);
  background: #f1f5f9;
  -webkit-font-smoothing: antialiased;
}

.siska-login {
  display: flex;
  min-height: 100vh;
}

/* Panel kiri — branding */
.siska-login-hero {
  flex: 1.15;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 3rem;
  background: var(--siska-primary) center / cover no-repeat;
  overflow: hidden;
}

.siska-login-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    165deg,
    rgba(15, 23, 42, 0.75) 0%,
    rgba(30, 58, 95, 0.55) 45%,
    rgba(13, 148, 136, 0.35) 100%
  );
  z-index: 0;
}

.siska-login-hero::after {
  content: '';
  position: absolute;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  top: -120px;
  right: -80px;
  z-index: 0;
  pointer-events: none;
}

.siska-login-hero-content {
  position: relative;
  z-index: 1;
  max-width: 420px;
}

.siska-login-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem;
  margin-bottom: 1.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.95);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  backdrop-filter: blur(8px);
}

.siska-login-hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  letter-spacing: -0.02em;
}

.siska-login-hero p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.82);
}

/* Panel kanan — form */
.siska-login-panel {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.siska-login-card {
  width: 100%;
  max-width: 420px;
  padding: 2.5rem 2rem;
  background: var(--siska-surface);
  border-radius: calc(var(--siska-radius) + 4px);
  box-shadow: var(--siska-shadow);
  border: 1px solid rgba(255, 255, 255, 0.8);
  animation: siska-login-in 0.55s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes siska-login-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.siska-login-brand {
  text-align: center;
  margin-bottom: 2rem;
}

.siska-login-brand img {
  height: 64px;
  width: auto;
  object-fit: contain;
  margin-bottom: 1rem;
  filter: drop-shadow(0 4px 12px rgba(15, 23, 42, 0.08));
}

.siska-login-brand h2 {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--siska-primary);
}

.siska-login-brand .siska-login-subtitle {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--siska-muted);
  line-height: 1.4;
}

.siska-login-brand .siska-login-welcome {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  color: var(--siska-muted);
}

/* Form fields */
.siska-field {
  margin-bottom: 1.25rem;
}

.siska-field label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--siska-text);
}

.siska-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.siska-input-wrap > i.fa {
  position: absolute;
  left: 1rem;
  font-size: 0.95rem;
  color: var(--siska-muted);
  pointer-events: none;
  transition: color 0.2s ease;
  z-index: 1;
}

.siska-input-wrap input {
  width: 100%;
  height: 48px;
  padding: 0 1rem 0 2.75rem;
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--siska-text);
  background: #f8fafc;
  border: 1.5px solid var(--siska-border);
  border-radius: var(--siska-radius);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.siska-input-wrap input::placeholder {
  color: #94a3b8;
}

.siska-input-wrap input:hover {
  border-color: #cbd5e1;
}

.siska-input-wrap input:focus {
  background: #fff;
  border-color: var(--siska-accent);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.siska-input-wrap:focus-within > i.fa {
  color: var(--siska-accent);
}

/* Pesan error / loading */
#pesan {
  min-height: 0;
  margin-bottom: 0.5rem;
}

#pesan:empty {
  display: none;
}

#pesan .alert,
#pesan > div:not(.alert) {
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  line-height: 1.5;
  border-radius: var(--siska-radius);
}

#pesan .alert-info,
#pesan > div:not(.alert) {
  background: var(--siska-danger-bg);
  color: var(--siska-danger-text);
  border: 1px solid #fecaca;
}

#pesan .fa-spinner {
  color: var(--siska-accent);
}

/* Tombol */
.siska-login-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.siska-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 48px;
  padding: 0 1.25rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--siska-radius);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.siska-btn:active:not(:disabled) {
  transform: scale(0.98);
}

.siska-btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--siska-primary) 0%, var(--siska-primary-light) 100%);
  box-shadow: 0 4px 14px rgba(30, 58, 95, 0.35);
}

.siska-btn-primary:hover:not(:disabled) {
  box-shadow: 0 6px 20px rgba(30, 58, 95, 0.45);
}

.siska-btn-primary:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.siska-btn-secondary {
  color: var(--siska-primary);
  background: #fff;
  border: 1.5px solid var(--siska-border);
}

.siska-btn-secondary:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
}

.siska-login-footer {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--siska-border);
  text-align: center;
  font-size: 0.75rem;
  color: var(--siska-muted);
}

/* Responsif */
@media (max-width: 992px) {
  .siska-login {
    flex-direction: column;
  }

  .siska-login-hero {
    flex: none;
    min-height: 220px;
    padding: 2rem 1.5rem;
    justify-content: center;
  }

  .siska-login-hero h1 {
    font-size: 1.5rem;
  }

  .siska-login-panel {
    flex: 1;
    padding: 1.5rem 1rem 2.5rem;
    margin-top: -1.5rem;
  }

  .siska-login-card {
    max-width: 440px;
    border-radius: var(--siska-radius);
  }
}

@media (max-width: 400px) {
  .siska-login-actions {
    grid-template-columns: 1fr;
  }

  .siska-login-card {
    padding: 2rem 1.25rem;
  }
}