:root {
            --navy:      #16335a;
            --navy-dark: #0f2742;
            --teal:      #1d5b6e;
            --yellow:    #f4c430;
            --green:     #2c8050;
            --green-dk:  #226a41;
            --green-bg:  #eef6f0;
            --red:       #c0392b;
            --red-dk:    #a5302410;
            --red-bg:    #fdeeec;
            --ink:       #1f2d3d;
            --muted:     #5a6b7b;
            --line:      #e3e8ee;
        }

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

        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            color: var(--ink);
            background: #f4f6f9;
            line-height: 1.5;
        }

        /* ---------- NAVBAR ---------- */
        .navbar {
            background: #fff;
            border-bottom: 1px solid var(--line);
            box-shadow: 0 1px 4px rgba(15, 39, 66, .06);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .navbar__inner {
            max-width: 1100px;
            margin: 0 auto;
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .navbar__brand { display: flex; align-items: center; gap: 14px; }
        .navbar__brand img { height: 38px; width: auto; display: block; }
        .navbar__brand span {
            font-size: 13px;
            color: var(--muted);
            border-left: 1px solid var(--line);
            padding-left: 14px;
            font-weight: 500;
        }
        .navbar__cta {
            background: var(--navy);
            color: #fff;
            text-decoration: none;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: 6px;
            transition: background .2s ease;
            white-space: nowrap;
        }
        .navbar__cta:hover { background: var(--teal); }

        /* ---------- PAGE WRAP ---------- */
        .wrap { max-width: 1100px; margin: 0 auto; padding: 28px 24px 60px; }

        /* ---------- GUIDE HEADER ---------- */
        .guide-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            background: linear-gradient(135deg, var(--navy) 0%, var(--teal) 100%);
            color: #fff;
            border-radius: 12px;
            padding: 32px 36px;
            box-shadow: 0 6px 20px rgba(15, 39, 66, .12);
        }
        .gh-title { min-width: 0; }
        .gh-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--navy-dark);
            background: var(--yellow);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .gh-title h1 {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: .5px;
            line-height: 1.1;
        }
        .gh-title p {
            font-size: 13.5px;
            color: #c5d8df;
            margin-top: 8px;
        }
        .gh-emergency {
            display: flex;
            flex-direction: column;
            text-align: right;
            text-decoration: none;
            color: #fff;
            padding: 12px 20px;
            border-left: 3px solid var(--yellow);
            transition: transform .15s ease;
        }
        .gh-emergency:hover { transform: translateY(-2px); }
        .gh-emergency small {
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .5px;
            color: var(--yellow);
            text-transform: uppercase;
        }
        .gh-emergency strong {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: 1px;
        }

        /* ---------- COLUMNS ---------- */
        .columns {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 28px;
        }
        .card {
            background: #fff;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(15, 39, 66, .08);
        }
        .card__head {
            color: #fff;
            text-align: center;
            padding: 16px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: .5px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
        }
        .card--do  .card__head { background: var(--green); }
        .card--dont .card__head { background: var(--red); }
        .card__head .mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px; height: 30px;
            border-radius: 50%;
            background: rgba(255,255,255,.18);
            font-size: 18px;
        }

        .item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 13px 18px;
            border-bottom: 1px solid var(--line);
            font-size: 14.5px;
        }
        .item:last-child { border-bottom: none; }
        .item .num {
            flex: 0 0 28px;
            font-weight: 800;
            font-size: 13px;
            color: #fff;
            text-align: center;
            border-radius: 4px;
            padding: 2px 0;
        }
        .card--do  .item:nth-child(odd)  { background: var(--green-bg); }
        .card--dont .item:nth-child(odd) { background: var(--red-bg); }
        .card--do  .item .num  { background: var(--green); }
        .card--dont .item .num { background: var(--red); }
        .card--do  .item span.txt  { color: var(--green-dk); font-weight: 600; }
        .card--dont .item span.txt { color: var(--red); font-weight: 600; }

        /* ---------- WARNING BANNER ---------- */
        .warning {
            margin-top: 28px;
            background: var(--navy);
            color: #fff;
            border-radius: 10px;
            padding: 18px 24px;
            text-align: center;
            font-size: 14px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            box-shadow: 0 4px 16px rgba(15, 39, 66, .1);
        }
        .warning .icon { font-size: 22px; color: var(--yellow); }

        /* ---------- ACTION ---------- */
        .action {
            margin-top: 32px;
            text-align: center;
        }
        .action p { color: var(--muted); margin-bottom: 16px; font-size: 15px; }
        .btn-primary {
            display: inline-block;
            background: var(--green);
            color: #fff;
            text-decoration: none;
            font-size: 17px;
            font-weight: 700;
            padding: 15px 42px;
            border-radius: 8px;
            box-shadow: 0 6px 18px rgba(44, 128, 80, .35);
            transition: transform .15s ease, background .2s ease;
        }
        .btn-primary:hover { background: var(--green-dk); transform: translateY(-2px); }

        /* ---------- FOOTER ---------- */
        .footer {
            text-align: center;
            color: var(--muted);
            font-size: 12.5px;
            padding: 24px;
            border-top: 1px solid var(--line);
        }

        /* ---------- PAGE HEADING ---------- */
        .page-head {
            background: linear-gradient(135deg, var(--navy) 0%, var(--teal) 100%);
            color: #fff;
            border-radius: 12px;
            padding: 28px 32px;
            box-shadow: 0 6px 20px rgba(15, 39, 66, .12);
        }
        .page-head h1 { font-size: 26px; font-weight: 800; letter-spacing: .3px; }
        .page-head p { font-size: 14px; color: #c5d8df; margin-top: 6px; }

        /* ---------- FORM ---------- */
        .form { margin-top: 24px; }
        .fieldset {
            background: #fff;
            border-radius: 10px;
            box-shadow: 0 4px 16px rgba(15, 39, 66, .08);
            margin-bottom: 22px;
            overflow: hidden;
        }
        .fieldset__head {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--navy);
            color: #fff;
            padding: 14px 22px;
            font-size: 16px;
            font-weight: 700;
        }
        .fieldset__head .step {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 26px; height: 26px;
            border-radius: 50%;
            background: var(--yellow);
            color: var(--navy-dark);
            font-size: 13px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .fieldset__body { padding: 32px; }

        .grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 22px 28px;
        }
        .field { display: flex; flex-direction: column; }
        .field--full { grid-column: 1 / -1; }
        .field label {
            font-size: 13px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .field label .req { color: var(--red); }
        .field .hint { font-size: 12px; color: var(--muted); font-weight: 400; }

        .input, .select, .textarea {
            font-family: inherit;
            font-size: 14.5px;
            color: var(--ink);
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 7px;
            padding: 10px 12px;
            transition: border-color .15s ease, box-shadow .15s ease;
            width: 100%;
        }
        .input:focus, .select:focus, .textarea:focus {
            outline: none;
            border-color: var(--teal);
            box-shadow: 0 0 0 3px rgba(29, 91, 110, .12);
        }
        .input--error, .select--error, .textarea--error {
            border-color: var(--red);
            box-shadow: 0 0 0 3px rgba(192, 57, 43, .12);
        }
        .textarea { resize: vertical; min-height: 90px; }

        /* check / radio groups */
        .checks { display: flex; flex-direction: column; gap: 10px; }
        .checks--row { flex-direction: row; flex-wrap: wrap; gap: 12px; }
        .check {
            display: flex;
            align-items: center;
            gap: 9px;
            padding: 10px 14px;
            border: 1px solid var(--line);
            border-radius: 8px;
            cursor: pointer;
            font-size: 14px;
            transition: border-color .15s ease, background .15s ease;
        }
        .check:hover { border-color: var(--teal); background: #f7fafb; }
        .check input { width: 16px; height: 16px; accent-color: var(--teal); cursor: pointer; }

        /* file input */
        .filebox {
            border: 1.5px dashed #c6d2dd;
            border-radius: 8px;
            padding: 18px;
            text-align: center;
            background: #f9fbfc;
            cursor: pointer;
            transition: border-color .15s ease;
        }
        .filebox:hover { border-color: var(--teal); }
        .filebox input { width: 100%; cursor: pointer; }

        /* ---------- STEPPER ---------- */
        .stepper {
            display: flex;
            margin: 24px 0 6px;
            counter-reset: step;
        }
        .stepper__item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            position: relative;
            text-align: center;
            cursor: pointer;
            -webkit-tap-highlight-color: transparent;
        }
        /* connecting line */
        .stepper__item::before {
            content: "";
            position: absolute;
            top: 18px;
            left: -50%;
            width: 100%;
            height: 3px;
            background: var(--line);
            z-index: 0;
        }
        .stepper__item:first-child::before { display: none; }
        .stepper__num {
            position: relative;
            z-index: 1;
            width: 38px; height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            border: 2px solid var(--line);
            color: var(--muted);
            font-weight: 800;
            font-size: 15px;
            transition: all .2s ease;
        }
        .stepper__label {
            font-size: 12.5px;
            font-weight: 600;
            color: var(--muted);
            transition: color .2s ease;
        }
        /* completed */
        .stepper__item.is-done .stepper__num {
            background: var(--green);
            border-color: var(--green);
            color: #fff;
        }
        .stepper__item.is-done::before { background: var(--green); }
        .stepper__item.is-done .stepper__num::after { content: "✓"; }
        .stepper__item.is-done .stepper__num span { display: none; }
        /* active */
        .stepper__item.is-active .stepper__num {
            background: var(--navy);
            border-color: var(--navy);
            color: #fff;
            box-shadow: 0 0 0 4px rgba(22, 51, 90, .15);
        }
        .stepper__item.is-active .stepper__label { color: var(--navy); }

        /* ---------- PANELS ---------- */
        .panel { display: none; }
        .panel.is-active { display: block; animation: fade .25s ease; }
        @keyframes fade {
            from { opacity: 0; transform: translateY(8px); }
            to   { opacity: 1; transform: translateY(0); }
        }

        /* ---------- WIZARD NAV ---------- */
        .form-actions {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 6px 2px 10px;
        }
        .btn {
            font-family: inherit;
            font-size: 15px;
            font-weight: 700;
            padding: 13px 32px;
            border-radius: 8px;
            cursor: pointer;
            border: none;
            transition: background .2s ease, transform .15s ease, color .2s ease;
        }
        .btn-next {
            background: var(--navy);
            color: #fff;
            box-shadow: 0 6px 18px rgba(22, 51, 90, .25);
        }
        .btn-next:hover { background: var(--teal); transform: translateY(-2px); }
        .btn-submit {
            background: var(--green);
            color: #fff;
            box-shadow: 0 6px 18px rgba(44, 128, 80, .3);
        }
        .btn-submit:hover { background: var(--green-dk); transform: translateY(-2px); }
        .btn-prev {
            background: #eef1f5;
            color: var(--ink);
        }
        .btn-prev:hover { background: #e2e7ee; }
        .btn:disabled { opacity: .65; cursor: not-allowed; transform: none; }
        [hidden] { display: none !important; }

        /* spinner inside submit button */
        .spinner {
            display: inline-block;
            width: 15px; height: 15px;
            border: 2px solid rgba(255,255,255,.4);
            border-top-color: #fff;
            border-radius: 50%;
            animation: spin .7s linear infinite;
            vertical-align: -2px;
            margin-right: 8px;
        }
        @keyframes spin { to { transform: rotate(360deg); } }

        /* ---------- ALERT / RESULT ---------- */
        .alert {
            border-radius: 10px;
            padding: 16px 20px;
            margin-bottom: 20px;
            font-size: 14.5px;
            font-weight: 500;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            line-height: 1.45;
        }
        .alert .a-icon { font-size: 20px; line-height: 1; flex-shrink: 0; }
        .alert--ok    { background: var(--green-bg); color: var(--green-dk); border: 1px solid #bfe0cb; }
        .alert--error { background: var(--red-bg);  color: var(--red);     border: 1px solid #f3c3bd; }
        .alert strong { display: block; margin-bottom: 2px; }

        /* success screen */
        .success-card {
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(15, 39, 66, .1);
            padding: 48px 32px;
            text-align: center;
        }
        .success-card .check-circle {
            width: 72px; height: 72px;
            border-radius: 50%;
            background: var(--green);
            color: #fff;
            font-size: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }
        .success-card h2 { font-size: 24px; color: var(--ink); margin-bottom: 8px; }
        .success-card p  { color: var(--muted); font-size: 15px; max-width: 460px; margin: 0 auto 24px; }

        @media (max-width: 640px) {
            .grid { grid-template-columns: 1fr; }
            .fieldset__body { padding: 22px; }
            .stepper__label { display: none; }
            .form-actions { gap: 10px; }
            .btn { flex: 1; padding: 13px 16px; text-align: center; }
        }

        /* ---------- RESPONSIVE ---------- */
        @media (max-width: 820px) {
            .guide-header { padding: 24px; }
            .gh-title h1 { font-size: 26px; }
            .gh-emergency {
                text-align: left;
                border-left: none;
                border-top: 3px solid var(--yellow);
                padding: 12px 0 0;
                width: 100%;
            }
            .columns { grid-template-columns: 1fr; }
            .navbar__brand span { display: none; }
        }