* { box-sizing: border-box; }
body { font-family: Arial, sans-serif; background: #eef2f7; margin: 0; padding: 30px; color: #111827; }
.container { max-width: 1050px; margin: auto; background: #fff; border-radius: 18px; padding: 30px; box-shadow: 0 20px 45px rgba(15,23,42,.12); }
.header { margin-bottom: 25px; }
.header h1 { margin: 0; font-size: 28px; }
.header p { margin: 8px 0 0; color: #6b7280; }
.progress-wrap { background: #e5e7eb; border-radius: 999px; overflow: hidden; height: 12px; margin: 18px 0 10px; }
.progress-bar { height: 100%; width: 0%; background: #2563eb; transition: .3s; }
.progress-text { font-size: 13px; color: #4b5563; margin-bottom: 20px; }
.nav-step { display: grid; grid-template-columns: repeat(8, 1fr); gap: 8px; margin-bottom: 25px; }
.step-nav { padding: 10px; background: #f3f4f6; border-radius: 10px; text-align: center; font-size: 13px; color: #6b7280; border: 1px solid #e5e7eb; }
.step-nav.active { background: #2563eb; color: #fff; border-color: #2563eb; }
.step-nav.done { background: #dcfce7; color: #166534; border-color: #86efac; }
.step { display: none; }
.step.active { display: block; }
.section-title { margin: 0 0 18px; font-size: 20px; border-bottom: 1px solid #e5e7eb; padding-bottom: 12px; }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.form-group { margin-bottom: 14px; }
.full { grid-column: 1 / -1; }
label { display: block; margin-bottom: 6px; font-weight: bold; font-size: 14px; }
input, select, textarea { width: 100%; padding: 11px 12px; border-radius: 10px; border: 1px solid #d1d5db; font-size: 14px; outline: none; }
textarea { min-height: 90px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: #2563eb; box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.field-error { border-color: #dc2626 !important; background: #fff7f7; }
.error-text { display: none; color: #dc2626; font-size: 12px; margin-top: 5px; }
.error-summary { display: none; background: #fef2f2; color: #991b1b; padding: 12px 14px; border-radius: 10px; margin-bottom: 18px; border: 1px solid #fecaca; }
.server-errors { background: #fef2f2; color: #991b1b; padding: 12px 14px; border-radius: 10px; margin-bottom: 18px; border: 1px solid #fecaca; }
.info-box { background:#eff6ff; color:#1e40af; border:1px solid #bfdbfe; padding: 12px 14px; border-radius: 10px; margin-bottom: 18px; }
.actions { display: flex; justify-content: space-between; margin-top: 25px; gap: 12px; }
.btn { border: none; border-radius: 10px; padding: 12px 18px; cursor: pointer; font-weight: bold; }
.btn-prev { background: #e5e7eb; color: #111827; }
.btn-next { background: #2563eb; color: white; }
.btn-submit { background: #16a34a; color: white; }
.hint { color: #6b7280; font-size: 13px; margin-top: 5px; }
@media(max-width: 800px) {
    body { padding: 15px; }
    .grid { grid-template-columns: 1fr; }
    .nav-step { grid-template-columns: repeat(2, 1fr); }
    .container { padding: 20px; }
}