*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
:root {
    --bg: #fdfdff;
    --surface: #ffffff;
    --surface2: #f1f5f9;
    --border: #e2e8f0;
    --border2: #cbd5e1;
    --text: #0f172a;
    --text2: #475569;
    --text3: #94a3b8;
    --accent: #6366f1;
    --accent2: #4f46e5;
    --aglow: rgba(99, 102, 241, 0.1);
    --blue: #6366f1;
    --bglow: rgba(99, 102, 241, 0.1);
    --green: #16a34a;
    --glow: rgba(22, 163, 74, 0.1);
    --gold: #d97706;
    --gglow: rgba(217, 119, 6, 0.1);
    --red: #ef4444;
    --rglow: rgba(239, 68, 68, 0.09);
    --radius: 12px;
    --rsm: 8px;
    --trans: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 8px 28px rgba(0, 0, 0, 0.08);
    --font: "Poppins", sans-serif;
    --mono: "Fira Code", monospace;
}
html {
    font-size: 15px;
}
body {
    font-family: var(--font);
    background: #fdfdff;
    background-image: radial-gradient(ellipse 65% 55% at 5% 10%, rgb(210 195 240 / 0.3) 0%, transparent 55%),
        radial-gradient(ellipse 55% 45% at 92% 8%, rgb(245 210 228 / 0.25) 0%, transparent 50%),
        radial-gradient(ellipse 45% 40% at 85% 90%, rgb(225 215 245 / 0.18) 0%, transparent 45%);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}
.wrap {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
    padding: 48px 24px 80px;
    display: flex;
    flex-direction: column;
    gap: 40px;
}
.inst-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-align: center;
}
.inst-logo {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), var(--blue));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    font-family: var(--font);
    margin-bottom: 4px;
}
.inst-brand {
    font-size: 26px;
    font-weight: 700;
    line-height: 1;
}
.inst-brand span {
    color: var(--accent);
}
.inst-tagline {
    font-size: 13px;
    color: var(--text3);
    font-family: var(--mono);
    text-transform: uppercase;
}
.steps-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
    row-gap: 12px;
}
.step-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: 99px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text3);
    border: 1px solid var(--border);
    background: var(--surface);
    white-space: nowrap;
    transition: all var(--trans);
    cursor: default;
    position: relative;
}
.step-pill.active {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--aglow);
    box-shadow: 0 0 0 3px var(--aglow);
}
.step-pill.done {
    color: var(--accent);
    border-color: rgb(99 102 241 / 0.25);
    background: #fff0;
}
.step-pill.done .spn {
    background: var(--accent);
    color: #fff;
}
.step-pill .spn {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--surface2);
    border: 1px solid var(--border2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    font-family: var(--mono);
    flex-shrink: 0;
    transition: all var(--trans);
}
.step-connector {
    width: 32px;
    height: 1px;
    background: var(--border);
    flex-shrink: 0;
}
.inst-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.inst-card-header {
    padding: 28px 32px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: flex-start;
    gap: 16px;
}
.inst-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--rsm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}
.inst-card-icon.green {
    background: var(--glow);
    color: var(--green);
}
.inst-card-icon.blue {
    background: var(--aglow);
    color: var(--accent);
}
.inst-card-icon.gold {
    background: var(--gglow);
    color: var(--gold);
}
.inst-card-icon.purple {
    background: rgb(167 139 250 / 0.12);
    color: #7c3aed;
}
.inst-card-icon.red {
    background: var(--rglow);
    color: var(--red);
}
.inst-card-title {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.1;
}
.inst-card-sub {
    font-size: 13px;
    color: var(--text2);
    margin-top: 4px;
    line-height: 1.5;
}
.inst-card-sub a {
    color: var(--blue);
    text-decoration: none;
}
.inst-card-sub a:hover {
    text-decoration: underline;
}
.inst-card-body {
    padding: 28px 32px;
}
.step-panel {
    display: none;
}
.step-panel.active {
    display: block;
    animation: stepIn 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes stepIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}
.req-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 28px;
}
.req-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    border-radius: var(--rsm);
    border: 1px solid var(--border);
    background: var(--surface2);
    transition: border-color var(--trans);
}
.req-row.ok {
    border-color: rgb(22 163 74 / 0.2);
    background: rgb(22 163 74 / 0.03);
}
.req-row.fail {
    border-color: rgb(239 68 68 / 0.2);
    background: rgb(239 68 68 / 0.03);
}
.req-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}
.req-icon.ok {
    background: var(--glow);
    color: var(--green);
}
.req-icon.fail {
    background: var(--rglow);
    color: var(--red);
}
.req-info {
    flex: 1;
}
.req-label {
    font-size: 14px;
    font-weight: 600;
}
.req-desc {
    font-size: 12px;
    color: var(--text2);
    margin-top: 2px;
    font-family: var(--mono);
}
.req-badge {
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 99px;
    font-family: var(--mono);
    white-space: nowrap;
    text-transform: uppercase;
}
.req-badge.ok {
    background: rgb(34 197 94 / 0.12);
    color: #16a34a;
}
.req-badge.fail {
    background: var(--rglow);
    color: var(--red);
}
.req-fix {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: rgb(248 113 113 / 0.06);
    border: 1px solid rgb(248 113 113 / 0.18);
    border-radius: var(--rsm);
    margin-top: -2px;
}
.req-fix i {
    color: var(--red);
    font-size: 14px;
    flex-shrink: 0;
}
.req-fix-text {
    font-size: 12px;
    color: var(--red);
    flex: 1;
}
.req-fix a {
    color: var(--red);
    font-weight: 700;
    text-decoration: underline;
}
.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-group {
    margin-bottom: 18px;
}
.form-group:last-of-type {
    margin-bottom: 0;
}
.form-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text2);
    text-transform: uppercase;
    font-family: var(--mono);
    margin-bottom: 7px;
}
.form-label i {
    color: var(--text3);
    font-size: 13px;
}
.form-input {
    width: 100%;
    padding: 11px 14px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--rsm);
    color: var(--text);
    font-family: var(--font);
    font-size: 14px;
    outline: none;
    transition:
        border-color var(--trans),
        box-shadow var(--trans);
}
.form-input::placeholder {
    color: var(--text3);
}
.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--aglow);
}
.form-hint {
    font-size: 11px;
    color: var(--text3);
    font-family: var(--mono);
    margin-top: 5px;
}
.divider {
    height: 1px;
    background: var(--border);
    margin: 24px 0;
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--rsm);
    border: none;
    cursor: pointer;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 600;
    transition: all var(--trans);
    text-decoration: none;
}
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover:not(:disabled) {
    background: var(--accent2);
    transform: translateY(-1px);
}
.btn-ghost {
    background: var(--surface2);
    color: var(--text2);
    border: 1px solid var(--border);
}
.btn-ghost:hover {
    color: var(--text);
    border-color: var(--border2);
}
.btn-lg {
    padding: 13px 32px;
    font-size: 15px;
}
.btn i {
    font-size: 16px;
}
.step-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.step-actions.end {
    justify-content: flex-end;
}
.btn-spinner {
    display: none;
    width: 15px;
    height: 15px;
    border: 2px solid rgb(255 255 255 / 0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
.btn.loading .btn-label {
    display: none;
}
.btn.loading .btn-spinner {
    display: block;
}
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}
.success-wrap {
    padding: 48px 32px;
    text-align: center;
}
.success-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--glow);
    border: 2px solid rgb(22 163 74 / 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin: 0 auto 24px;
    animation: popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes popIn {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}
.success-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}
.success-sub {
    font-size: 15px;
    color: var(--text2);
    max-width: 380px;
    margin: 0 auto 32px;
    line-height: 1.6;
}
.success-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.info-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
.info-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition:
        border-color var(--trans),
        transform var(--trans);
    text-decoration: none;
    color: var(--text);
}
.info-card:hover {
    border-color: var(--border2);
    transform: translateY(-2px);
}
.info-card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--rsm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
}
.info-card-title {
    font-size: 14px;
    font-weight: 600;
}
.info-card-desc {
    font-size: 12px;
    color: var(--text2);
    line-height: 1.5;
}
.info-card.green .info-card-icon {
    background: var(--glow);
    color: var(--green);
}
.info-card.blue .info-card-icon {
    background: var(--aglow);
    color: var(--accent);
}
.info-card.gold .info-card-icon {
    background: var(--gglow);
    color: var(--gold);
}
.alert {
    padding: 13px 16px;
    border-radius: var(--rsm);
    font-size: 13px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 20px;
    border: 1px solid;
}
.alert.warn {
    background: rgb(251 191 36 / 0.07);
    border-color: rgb(251 191 36 / 0.2);
    color: var(--gold);
}
.alert.err {
    background: var(--rglow);
    border-color: rgb(248 113 113 / 0.2);
    color: var(--red);
}
.alert i {
    font-size: 16px;
    flex-shrink: 0;
    margin-top: 1px;
}
.step-error {
    padding: 11px 14px;
    border-radius: var(--rsm);
    font-size: 13px;
    color: var(--red);
    background: var(--rglow);
    border: 1px solid rgb(248 113 113 / 0.2);
    margin-bottom: 16px;
    display: none;
}
.step-error.show {
    display: flex;
    align-items: center;
    gap: 8px;
}
.form-input.valid {
    border-color: rgb(74 222 128 / 0.55);
}
.form-input.invalid {
    border-color: rgb(248 113 113 / 0.55);
}
.form-input.valid:focus {
    border-color: rgb(74 222 128 / 0.8);
    box-shadow: 0 0 0 3px rgb(74 222 128 / 0.08);
}
.form-input.invalid:focus {
    border-color: var(--red);
    box-shadow: 0 0 0 3px var(--rglow);
}
.pw-strength {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}
.pw-strength-bars {
    display: flex;
    gap: 4px;
    flex: 1;
}
.pw-strength-bar {
    height: 3px;
    flex: 1;
    border-radius: 99px;
    background: var(--border2);
    transition: background 0.25s;
}
.pw-strength-label {
    font-size: 11px;
    font-family: var(--mono);
    color: var(--text3);
    min-width: 52px;
    text-align: right;
}
.step-mobile {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 9px;
}
.step-mobile-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.step-mobile-count {
    font-size: 11px;
    font-weight: 700;
    font-family: var(--mono);
    color: var(--text3);
    text-transform: uppercase;
}
.step-mobile-name {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
}
.step-mobile-track {
    height: 4px;
    background: var(--border);
    border-radius: 99px;
    overflow: hidden;
}
.step-mobile-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 99px;
    width: 0%;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
::-webkit-scrollbar {
    width: 5px;
}
::-webkit-scrollbar-track {
    background: #fff0;
}
::-webkit-scrollbar-thumb {
    background: var(--border2);
    border-radius: 99px;
}
@media (max-width: 680px) {
    .wrap {
        padding: 24px 16px 56px;
        gap: 24px;
    }
    .inst-logo {
        width: 44px;
        height: 44px;
        font-size: 20px;
    }
    .inst-brand {
        font-size: 22px;
    }
    .inst-tagline {
        font-size: 12px;
    }
    .inst-card {
        border-radius: 12px;
        box-shadow:
            0 1px 3px rgb(0 0 0 / 0.04),
            0 4px 16px rgb(0 0 0 / 0.07);
    }
    .inst-card-header {
        padding: 18px 18px 15px;
        gap: 12px;
    }
    .inst-card-body {
        padding: 18px 18px;
    }
    .inst-card-title {
        font-size: 17px;
    }
    .inst-card-sub {
        font-size: 12px;
    }
    .form-grid-2 {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .form-grid-2 .form-group:last-child {
        margin-bottom: 18px;
    }
    .form-input {
        font-size: 16px;
    }
    .info-strip {
        grid-template-columns: 1fr;
    }
    .step-pill {
        padding: 6px 10px;
        font-size: 12px;
    }
    .step-connector {
        width: 12px;
    }
    .step-actions {
        flex-direction: column;
        gap: 10px;
        margin-top: 20px;
        padding-top: 18px;
    }
    .step-actions .btn-primary {
        order: -1;
    }
    .step-actions .btn {
        width: 100%;
        justify-content: center;
    }
    .success-wrap {
        padding: 36px 20px;
    }
    .success-title {
        font-size: 22px;
    }
    .success-sub {
        font-size: 14px;
    }
    .success-actions {
        flex-direction: column;
    }
    .success-actions .btn {
        width: 100%;
        justify-content: center;
    }
}
@media (max-width: 600px) {
    .steps-nav .step-pill,
    .steps-nav .step-connector {
        display: none;
    }
    .step-mobile {
        display: flex;
    }
}
@media (max-width: 400px) {
    .wrap {
        padding: 16px 14px 48px;
    }
    .inst-card-header,
    .inst-card-body {
        padding: 16px 14px;
    }
    .req-row {
        padding: 10px 12px;
        gap: 10px;
    }
    .req-badge {
        display: none;
    }
}