:root {
  --rb-gold:     #C8961A;
  --rb-gold-lt:  #E5B830;
  --rb-gold-bg:  rgba(200,150,26,.10);
  --rb-dark:     #1A1A1A;
  --rb-dark2:    #2A2A2A;
  --rb-dark3:    #111111;
  --rb-green:    #10B981;
  --rb-red:      #EF4444;
  --rb-muted:    #6B7280;
  --rb-border:   #E5E7EB;
  --rb-surface2: #F9FAFB;
  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-body:    'Inter', sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  background: #F3F4F6;
}

.page-bg {
  position: fixed; inset: 0;
  background: radial-gradient(circle at 10% 20%, rgba(200,150,26,.08) 0%, transparent 25%),
              radial-gradient(circle at 90% 80%, rgba(26,26,26,.04) 0%, transparent 25%);
  pointer-events: none; z-index: 0;
}
.page-bg .shape {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: .55;
}
.shape-1 { width: 320px; height: 320px; background: var(--rb-gold-bg); top: -80px; right: -60px; }
.shape-2 { width: 260px; height: 260px; background: rgba(26,26,26,.06); bottom: -60px; left: -50px; }

.change-password-wrapper {
  position: relative; z-index: 1;
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}

.change-password-card {
  width: 100%; max-width: 460px;
  background: #FFFFFF;
  border-radius: 18px;
  box-shadow: 0 20px 60px rgba(0,0,0,.12);
  overflow: hidden;
}

.change-password-header {
  background: linear-gradient(135deg, var(--rb-dark3), var(--rb-dark));
  padding: 32px 28px 24px;
  text-align: center;
  border-bottom: 3px solid var(--rb-gold);
  color: white;
}
.brand-logo { width: 110px; height: auto; margin-bottom: 10px; }
.brand-subtitle {
  font-family: var(--font-body);
  color: rgba(255,255,255,.50);
  font-size: .78rem; letter-spacing: .02em;
  margin-bottom: 18px;
}
.change-password-header h1 {
  font-family: var(--font-display);
  font-weight: 800; font-size: 1.25rem;
  margin: 0 0 6px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
}
.change-password-header h1 i { color: var(--rb-gold); font-size: 1.35rem; }
.header-hint {
  margin: 0;
  color: rgba(255,255,255,.60);
  font-size: .85rem;
}

.change-password-body { padding: 28px; }

.form-group { margin-bottom: 20px; }
.form-label {
  display: flex; align-items: center; gap: 7px;
  font-family: var(--font-display);
  font-size: .72rem; font-weight: 700;
  color: var(--rb-muted);
  text-transform: uppercase; letter-spacing: .06em;
  margin-bottom: 7px;
}
.form-label i { color: var(--rb-gold); font-size: .9rem; }

.password-input-group {
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
  border-radius: 10px;
}
.password-input-group .form-control {
  border: 1.5px solid var(--rb-border);
  border-right: none;
  border-radius: 10px 0 0 10px;
  font-size: .9rem; padding: 11px 14px;
  background: var(--rb-surface2);
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.password-input-group .form-control:focus {
  border-color: var(--rb-gold);
  box-shadow: none;
  background: white;
}
.password-input-group .form-control::placeholder { color: #9CA3AF; }
.btn-toggle-password {
  border: 1.5px solid var(--rb-border);
  border-left: none;
  border-radius: 0 10px 10px 0;
  background: var(--rb-surface2);
  color: var(--rb-muted);
  padding: 0 14px;
  transition: color .15s, background .15s;
}
.btn-toggle-password:hover,
.password-input-group .form-control:focus + .btn-toggle-password {
  color: var(--rb-gold); background: rgba(200,150,26,.06);
}

.password-strength {
  height: 4px; border-radius: 2px; margin-top: 8px;
  background: #E5E7EB; overflow: hidden; position: relative;
}
.password-strength::after {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 0%; background: var(--rb-red); border-radius: 2px;
  transition: width .25s, background .25s;
}
.password-strength.weak::after { width: 33%; background: var(--rb-red); }
.password-strength.medium::after { width: 66%; background: var(--rb-gold); }
.password-strength.strong::after { width: 100%; background: var(--rb-green); }

.requirements-card {
  margin-top: 14px;
  background: var(--rb-surface2);
  border: 1px solid var(--rb-border);
  border-radius: 10px;
  padding: 14px 16px;
}
.requirements-title {
  font-family: var(--font-display);
  font-size: .72rem; font-weight: 700;
  color: var(--rb-dark);
  text-transform: uppercase; letter-spacing: .04em;
  margin-bottom: 10px;
}
.requirements-list {
  list-style: none;
  margin: 0; padding: 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px;
}
.requirements-list li {
  display: flex; align-items: center; gap: 8px;
  font-size: .78rem; color: var(--rb-muted);
  transition: color .2s;
}
.requirements-list li i { font-size: .55rem; }
.requirements-list li.valid { color: var(--rb-green); font-weight: 500; }
.requirements-list li.valid i { font-size: .7rem; }
.requirements-list li.invalid { color: var(--rb-red); }

.btn-submit {
  width: 100%;
  background: var(--rb-dark); color: white;
  border: none; border-radius: 10px;
  padding: 13px;
  font-family: var(--font-display);
  font-weight: 700; font-size: .92rem;
  letter-spacing: .01em;
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  transition: background .15s, transform .1s, box-shadow .15s;
  margin-top: 4px;
}
.btn-submit:hover { background: var(--rb-dark2); transform: translateY(-1px); box-shadow: 0 6px 18px rgba(0,0,0,.12); }
.btn-submit:active { background: var(--rb-dark3); transform: translateY(0); }
.btn-submit:disabled { opacity: .75; cursor: not-allowed; transform: none; }
.btn-submit i { font-size: 1.05rem; }

.change-password-footer {
  padding: 0 28px 28px;
  text-align: center;
}
.btn-back {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  color: var(--rb-muted); font-size: .84rem; font-weight: 600;
  text-decoration: none;
  padding: 8px 14px; border-radius: 8px;
  transition: color .15s, background .15s;
}
.btn-back:hover { color: var(--rb-dark); background: var(--rb-surface2); }

.alert {
  border-radius: 10px; font-size: .85rem; padding: 12px 14px;
  display: flex; align-items: center;
}
.alert i { flex-shrink: 0; }

@media (max-width: 480px) {
  .change-password-wrapper { padding: 16px; }
  .change-password-header { padding: 26px 20px 20px; }
  .change-password-body { padding: 22px; }
  .requirements-list { grid-template-columns: 1fr; }
}