:root {
    --ob-primary: #6d5dfc;
    --ob-primary-2: #8d82ff;
    --ob-soft: #efedff;
    --ob-bg: #f3f5fb;
    --ob-surface: rgba(255,255,255,.96);
    --ob-text: #171823;
    --ob-muted: #737789;
    --ob-border: #e5e7f0;
    --ob-success: #168a54;
    --ob-danger: #cc3d4a;
    --ob-warning: #b77900;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    color: var(--ob-text);
}

.onboarding-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 34px 16px;
    background:
        radial-gradient(circle at 12% 10%, rgba(109,93,252,.16), transparent 31%),
        radial-gradient(circle at 90% 88%, rgba(141,130,255,.13), transparent 28%),
        linear-gradient(135deg, #fafaff, var(--ob-bg));
}

.onboarding-card {
    width: min(760px, 100%);
    padding: 30px;
    border: 1px solid rgba(229,231,240,.95);
    border-radius: 28px;
    background: var(--ob-surface);
    box-shadow: 0 28px 90px rgba(33,38,57,.13);
    position: relative;
    overflow: hidden;
    animation: cardEnter .45s ease both;
}

.onboarding-card.narrow { max-width: 590px; }

.onboarding-card::after {
    content: "";
    position: absolute;
    width: 250px;
    height: 250px;
    right: -145px;
    top: -155px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(109,93,252,.17), transparent 70%);
    pointer-events: none;
}

.progress-bars {
    display: grid;
    grid-template-columns: repeat(4, minmax(0,1fr));
    gap: 9px;
    margin-bottom: 26px;
}

.progress-bars span {
    height: 6px;
    border-radius: 999px;
    background: #e8e9f1;
    overflow: hidden;
    position: relative;
}

.progress-bars span.done::after,
.progress-bars span.current::after {
    content: "";
    position: absolute;
    inset: 0;
    transform-origin: left;
    background: linear-gradient(90deg, var(--ob-primary), var(--ob-primary-2));
}

.progress-bars span.current::after {
    animation: progressFill .75s ease both;
}

.step-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: var(--ob-primary);
    font-weight: 850;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .1em;
}

.step-label::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 0 5px var(--ob-soft);
}

h1 {
    margin: 0 0 10px;
    font-size: clamp(30px, 5vw, 42px);
    line-height: 1.04;
    letter-spacing: -.04em;
}

h2, h3 { margin-top: 0; }

.intro {
    color: var(--ob-muted);
    margin: 0 0 24px;
    line-height: 1.55;
}

.alert {
    border-radius: 14px;
    padding: 12px 14px;
    margin-bottom: 14px;
}

.alert.error {
    color: var(--ob-danger);
    background: #fff0f2;
}

.alert.success {
    color: var(--ob-success);
    background: #eaf8f1;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 16px;
}

.field-group {
    position: relative;
    margin-bottom: 15px;
}

.field-group label {
    display: block;
    font-weight: 800;
    margin-bottom: 7px;
}

.field-group input,
.field-group select,
.field-group textarea {
    width: 100%;
    min-height: 50px;
    padding: 12px 48px 12px 14px;
    border: 1px solid var(--ob-border);
    border-radius: 14px;
    background: white;
    color: var(--ob-text);
    font: inherit;
    outline: none;
    transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.field-group textarea {
    min-height: 110px;
    resize: vertical;
}

.field-group input:focus,
.field-group select:focus,
.field-group textarea:focus {
    border-color: var(--ob-primary);
    box-shadow: 0 0 0 4px rgba(109,93,252,.11);
    transform: translateY(-1px);
}

.field-status {
    position: absolute;
    right: 14px;
    top: 42px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: none;
    place-items: center;
    font-weight: 950;
    font-size: 13px;
}

.field-group.valid .field-status {
    display: grid;
    color: var(--ob-success);
    background: #e8f8ef;
}

.field-group.invalid .field-status {
    display: grid;
    color: var(--ob-danger);
    background: #fff0f2;
}

.field-group.invalid input {
    border-color: var(--ob-danger);
    box-shadow: 0 0 0 4px rgba(204,61,74,.08);
}

.field-help {
    display: block;
    margin-top: 7px;
    color: var(--ob-muted);
    font-size: 12px;
}

.field-help.error {
    color: var(--ob-danger);
    font-weight: 700;
}

.password-strength {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    margin-top: 9px;
}

.password-strength span {
    height: 5px;
    border-radius: 999px;
    background: #e8e9f1;
}

.password-strength.weak span:nth-child(1) { background: var(--ob-danger); }
.password-strength.good span:nth-child(-n+2) { background: var(--ob-warning); }
.password-strength.strong span { background: var(--ob-success); }

.strength-label {
    margin-top: 6px;
    font-size: 12px;
    color: var(--ob-muted);
}

.helper-box {
    padding: 12px 14px;
    border: 1px solid var(--ob-border);
    border-radius: 14px;
    background: #f8f8fc;
    color: var(--ob-muted);
    font-size: 13px;
    margin: 8px 0 16px;
}

.shine-button {
    width: 100%;
    min-height: 52px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    border: 0;
    border-radius: 15px;
    position: relative;
    overflow: hidden;
    isolation: isolate;
    background: linear-gradient(135deg, var(--ob-primary), var(--ob-primary-2));
    color: white;
    font: inherit;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 13px 30px rgba(109,93,252,.27);
    transition: transform .18s ease, box-shadow .18s ease, opacity .18s ease;
}

.shine-button::after {
    content: "";
    position: absolute;
    top: -60%;
    left: -48%;
    width: 35%;
    height: 220%;
    transform: rotate(22deg);
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255,255,255,.15),
        rgba(255,255,255,.82),
        rgba(255,255,255,.15),
        transparent
    );
    animation: shine 3.2s ease-in-out infinite;
    z-index: -1;
}

.shine-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 38px rgba(109,93,252,.32);
}

.shine-button:disabled {
    cursor: not-allowed;
    opacity: .58;
    transform: none;
}

.shine-button.loading {
    pointer-events: none;
}

.shine-button.loading .button-label { opacity: .15; }

.shine-button.loading::before {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,.42);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .7s linear infinite;
}

.footer-link {
    text-align: center;
    color: var(--ob-muted);
    margin: 18px 0 0;
}

.footer-link a {
    color: var(--ob-primary);
    font-weight: 800;
}

.selection-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 12px;
}

.selection-card {
    position: relative;
    border: 1px solid var(--ob-border);
    border-radius: 18px;
    padding: 17px;
    background: white;
    cursor: pointer;
    transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

.selection-card:hover {
    transform: translateY(-3px);
    border-color: rgba(109,93,252,.45);
    box-shadow: 0 14px 28px rgba(33,38,57,.08);
}

.selection-card:has(input:checked) {
    border-color: var(--ob-primary);
    background: var(--ob-soft);
    box-shadow: 0 0 0 3px rgba(109,93,252,.1);
}

.selection-card input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.selection-icon {
    font-size: 27px;
    display: block;
    margin-bottom: 10px;
}

.selection-card strong,
.selection-card small {
    display: block;
}

.selection-card small {
    color: var(--ob-muted);
    margin-top: 4px;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 14px;
}

.theme-preview {
    height: 110px;
    border-radius: 15px;
    background: #f6f7fb;
    border: 1px solid var(--ob-border);
    padding: 12px;
    display: grid;
    grid-template-columns: 28% 1fr;
    gap: 10px;
    margin-bottom: 12px;
}

.theme-preview .mini-sidebar {
    background: #171923;
    border-radius: 8px;
}

.theme-preview .mini-content {
    display: grid;
    gap: 7px;
}

.theme-preview .mini-content span {
    background: white;
    border: 1px solid var(--ob-border);
    border-radius: 7px;
}

.preparing {
    text-align: center;
}

.preparing-orb {
    width: 92px;
    height: 92px;
    margin: 0 auto 20px;
    border-radius: 30px;
    display: grid;
    place-items: center;
    font-size: 38px;
    color: white;
    background: linear-gradient(135deg, var(--ob-primary), var(--ob-primary-2));
    box-shadow: 0 18px 44px rgba(109,93,252,.3);
    animation: pulse 1.6s ease-in-out infinite;
}

.preparing-list {
    display: grid;
    gap: 10px;
    margin: 24px 0;
    text-align: left;
}

.preparing-item {
    display: flex;
    gap: 11px;
    align-items: center;
    padding: 12px 14px;
    border: 1px solid var(--ob-border);
    border-radius: 14px;
    color: var(--ob-muted);
}

.preparing-item.done {
    color: var(--ob-success);
    background: #f2fbf6;
}

@keyframes cardEnter {
    from { opacity: 0; transform: translateY(16px) scale(.987); }
    to { opacity: 1; transform: none; }
}

@keyframes progressFill {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

@keyframes shine {
    0%, 58% { left: -48%; }
    78%, 100% { left: 125%; }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%,100% { transform: scale(1); }
    50% { transform: scale(1.055); }
}

@media (max-width: 720px) {
    .onboarding-card {
        padding: 23px 19px;
        border-radius: 22px;
    }

    .form-row,
    .preview-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .selection-grid {
        grid-template-columns: repeat(2, minmax(0,1fr));
    }
}