:root {
    --brand: #1762f9;
    --brand-hover: #1354d4;
    --brand-soft: #e8efff;
    --surface: #ffffff;
    --surface-muted: #f7f8fa;
    --border: #e4e6ea;
    --border-strong: #d1d5db;
    --text: #141414;
    --text-muted: #6b7280;
    --success: #10b981;
    --success-soft: #ecfdf5;
    --warning: #d97706;
    --warning-soft: #fffbeb;
    --danger: #ef4444;
    --danger-soft: #fef2f2;
}

html {
    min-height: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
    color: var(--text);
}

a {
    color: inherit;
}

button,
input,
select {
    font: inherit;
}

* {
    box-sizing: border-box;
    scrollbar-width: thin;
    scrollbar-color: #d1d5db transparent;
}

.step {
    display: none;
    opacity: 0;
    transform: translateY(12px);
}

.step.active {
    display: block;
    animation: stepIn 220ms ease forwards;
}

.step.step-exit {
    display: none;
}

.hidden {
    display: none !important;
}

.brand-logo {
    display: block;
    width: auto;
    max-width: 180px;
    max-height: 34px;
    object-fit: contain;
}

.brand-wordmark {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.05em;
    line-height: 1;
    color: var(--text);
}

.form-group {
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
}

.required-mark {
    color: var(--danger);
}

.form-group input,
.form-group select {
    width: 100%;
    min-height: 44px;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    background: var(--surface);
    color: var(--text);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
    appearance: none;
}

.form-group select {
    background-image:
        linear-gradient(45deg, transparent 50%, #6b7280 50%),
        linear-gradient(135deg, #6b7280 50%, transparent 50%);
    background-position:
        calc(100% - 22px) calc(50% - 2px),
        calc(100% - 16px) calc(50% - 2px);
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
}

.form-group input::placeholder {
    color: #9ca3af;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--border-strong);
    box-shadow: 0 0 0 4px rgba(23, 98, 249, 0.1);
}

.form-group input[readonly] {
    background: #f9fafb;
    color: var(--text-muted);
}

.form-group input.input-error,
.form-group select.input-error {
    border-color: rgba(239, 68, 68, 0.45);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.08);
}

.field-error {
    display: block;
    margin-top: 0.45rem;
    font-size: 0.8rem;
    line-height: 1.4;
    color: var(--danger);
}

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

.step-desc {
    margin: 0 0 1rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.step-desc.compact {
    margin-bottom: 0.75rem;
}

.section-divider {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    margin: 2rem 0 0.75rem;
    color: var(--text);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.section-divider::before,
.section-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border);
}

.infra-options,
.seed-options,
.manual-grid,
.checks-list,
.install-progress,
.complete-links,
.metric-grid,
.pipeline-stats,
.site-preview-meta {
    display: grid;
    gap: 1rem;
}

.infra-options,
.complete-links,
.pipeline-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric-grid,
.site-preview-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.pipeline-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.radio-card,
.checkbox-card,
.subsection-card,
.metric-card,
.pipeline-stat,
.link-card,
.credentials-box {
    border-radius: 1rem;
    border: 1px solid rgba(228, 230, 234, 0.95);
    background: rgba(247, 248, 250, 0.78);
}

.radio-card,
.checkbox-card {
    display: block;
    padding: 1rem;
    transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.radio-card {
    cursor: pointer;
}

.radio-card:hover,
.checkbox-card:hover,
.subsection-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.05);
}

.radio-card.active {
    border-color: rgba(23, 98, 249, 0.2);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(232, 239, 255, 0.75));
}

.radio-card input {
    display: none;
}

.radio-card-body strong,
.checkbox-card-body strong {
    display: block;
    margin-top: 0.6rem;
    font-size: 1.05rem;
    line-height: 1.25;
    color: var(--text);
}

.radio-card-body p,
.checkbox-card-body p {
    margin: 0.5rem 0 0;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-muted);
}

.card-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 1.8rem;
    padding: 0 0.7rem;
    border-radius: 999px;
    background: rgba(23, 98, 249, 0.1);
    color: var(--brand);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.card-chip.alt {
    background: rgba(217, 119, 6, 0.12);
    color: var(--warning);
}

.checkbox-card {
    display: flex;
    gap: 0.95rem;
    align-items: flex-start;
    cursor: pointer;
}

.checkbox-card input[type="checkbox"] {
    margin-top: 0.15rem;
    width: 18px;
    height: 18px;
    accent-color: var(--brand);
    flex-shrink: 0;
}

.checkbox-card:has(input:checked) {
    border-color: rgba(23, 98, 249, 0.2);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(232, 239, 255, 0.72));
}

.subsection-card,
.metric-card,
.pipeline-stat,
.link-card,
.credentials-box {
    padding: 1.25rem;
}

.subsection-card h3 {
    margin: 0 0 1rem;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.subsection-actions {
    display: flex;
    justify-content: flex-start;
}

.snapshot-card,
.pipeline-card {
    border-radius: 1.25rem;
    border: 1px solid rgba(228, 230, 234, 0.95);
    background: var(--surface);
    padding: 1.25rem;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
}

.snapshot-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.status-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 34px;
    padding: 0 0.8rem;
    border-radius: 999px;
    border: 1px solid rgba(228, 230, 234, 0.95);
    background: #f9fafb;
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.status-chip-idle {
    background: #f9fafb;
    color: var(--text-muted);
}

.status-chip-success {
    background: var(--success-soft);
    border-color: rgba(16, 185, 129, 0.16);
    color: var(--success);
}

.status-chip-warning {
    background: var(--warning-soft);
    border-color: rgba(217, 119, 6, 0.16);
    color: var(--warning);
}

.status-chip-danger {
    background: var(--danger-soft);
    border-color: rgba(239, 68, 68, 0.16);
    color: var(--danger);
}

.metric-card span,
.pipeline-stat span,
.site-preview-chip span {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.metric-card strong,
.pipeline-stat strong,
.site-preview-chip strong {
    display: block;
    font-size: 1rem;
    line-height: 1.45;
    letter-spacing: -0.02em;
    color: var(--text);
}

.site-preview {
    overflow: hidden;
    border-radius: 1.25rem;
    background:
        radial-gradient(circle at top left, rgba(23, 98, 249, 0.35), transparent 26%),
        linear-gradient(145deg, #0f172a, #1e3a8a 58%, #2563eb 100%);
    color: #fff;
}

.site-preview-bar {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.95rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-preview-bar > span {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.35);
}

.site-preview-domain {
    margin-left: auto;
    max-width: calc(100% - 42px);
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.84);
    font-size: 0.75rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.site-preview-body {
    padding: 1.35rem;
}

.site-preview-hero strong {
    display: block;
    font-size: clamp(1.6rem, 2vw, 2rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.site-preview-hero p {
    margin: 0.75rem 0 0;
    font-size: 0.92rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.74);
}

.site-preview-chip {
    padding: 0.9rem 1rem;
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.step-actions,
.complete-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(228, 230, 234, 0.95);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 44px;
    min-width: 140px;
    padding: 0 1rem;
    border-radius: 0.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.16s ease, background 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease, opacity 0.16s ease;
}

.btn:active:not(:disabled) {
    transform: translateY(1px);
}

.btn:disabled {
    opacity: 0.56;
    cursor: not-allowed;
}

.btn-primary {
    border: 1px solid rgba(17, 24, 39, 0.92);
    background: #111827;
    color: #fff;
    box-shadow: 0 14px 28px rgba(17, 24, 39, 0.12);
}

.btn-primary:hover:not(:disabled) {
    background: #030712;
}

.btn-secondary {
    border: 1px solid rgba(228, 230, 234, 0.95);
    background: #fff;
    color: var(--text);
}

.btn-secondary:hover:not(:disabled) {
    border-color: #d1d5db;
    background: #f9fafb;
}

.btn-loading {
    pointer-events: none;
}

.btn-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.68s linear infinite;
}

.btn-secondary .btn-spinner {
    border-color: rgba(17, 24, 39, 0.18);
    border-top-color: var(--text);
}

.result-box {
    margin-top: 1rem;
    padding: 0.95rem 1rem;
    border-radius: 1rem;
    border: 1px solid transparent;
    font-size: 0.9rem;
    line-height: 1.65;
}

.result-box.success {
    background: var(--success-soft);
    border-color: rgba(16, 185, 129, 0.16);
    color: #047857;
}

.result-box.error {
    background: var(--danger-soft);
    border-color: rgba(239, 68, 68, 0.16);
    color: #b91c1c;
}

.result-box.info {
    background: var(--brand-soft);
    border-color: rgba(23, 98, 249, 0.16);
    color: var(--brand-hover);
}

.check-item,
.install-step,
.rail-step {
    border-radius: 1.25rem;
    border: 1px solid rgba(228, 230, 234, 0.95);
    background: rgba(249, 250, 251, 0.92);
}

.check-item,
.rail-step {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 0.85rem;
    align-items: center;
    padding: 0.95rem 1rem;
}

.check-icon,
.install-step-icon {
    width: 24px;
    height: 24px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
}

.check-loading {
    animation: pulse 1s ease-in-out infinite;
}

.check-ok .check-icon {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success);
}

.check-warning .check-icon {
    background: rgba(217, 119, 6, 0.12);
    color: var(--warning);
}

.check-error .check-icon {
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger);
}

.install-step {
    display: grid;
    grid-template-columns: 24px minmax(160px, 220px) minmax(0, 1fr);
    gap: 0.85rem;
    align-items: center;
    padding: 0.95rem 1rem;
}

.install-step.pending .install-step-icon {
    background: rgba(209, 213, 219, 0.55);
    color: var(--text-muted);
}

.install-step.running {
    background: rgba(232, 239, 255, 0.75);
    border-color: rgba(23, 98, 249, 0.14);
}

.install-step.running .install-step-icon {
    background: rgba(23, 98, 249, 0.16);
    color: var(--brand);
    animation: pulse 1s ease-in-out infinite;
}

.install-step.done {
    background: var(--success-soft);
    border-color: rgba(16, 185, 129, 0.14);
}

.install-step.done .install-step-icon {
    background: rgba(16, 185, 129, 0.14);
    color: var(--success);
}

.install-step.error {
    background: var(--danger-soft);
    border-color: rgba(239, 68, 68, 0.14);
}

.install-step.error .install-step-icon {
    background: rgba(239, 68, 68, 0.14);
    color: var(--danger);
}

.install-step-name {
    font-weight: 700;
    color: var(--text);
}

.install-step-msg {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.6;
}

.pipeline-lead {
    margin: 0 0 1.1rem;
    color: var(--text-muted);
    font-size: 0.94rem;
    line-height: 1.7;
}

.rail-step {
    grid-template-columns: 44px minmax(0, 1fr);
    transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.rail-step strong {
    display: block;
    font-size: 0.95rem;
    line-height: 1.2;
    color: var(--text);
}

.rail-step p {
    margin: 0.25rem 0 0;
    font-size: 0.82rem;
    line-height: 1.45;
    color: var(--text-muted);
}

.rail-badge {
    width: 44px;
    height: 44px;
    border-radius: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(209, 213, 219, 0.45);
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 700;
}

.rail-step.is-current {
    transform: translateY(-1px);
    background: rgba(232, 239, 255, 0.8);
    border-color: rgba(23, 98, 249, 0.16);
}

.rail-step.is-current .rail-badge {
    background: var(--brand);
    color: #fff;
}

.rail-step.is-complete {
    background: var(--success-soft);
    border-color: rgba(16, 185, 129, 0.16);
}

.rail-step.is-complete .rail-badge {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.complete-box {
    text-align: center;
}

#complete-ready {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.complete-spinner-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.complete-spinner {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: 4px solid rgba(228, 230, 234, 0.95);
    border-top-color: var(--brand);
    animation: spin 0.78s linear infinite;
}

.complete-icon {
    width: 76px;
    height: 76px;
    margin: 0 auto 1.25rem;
    border-radius: 1.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(23, 98, 249, 0.14));
    color: var(--success);
    font-size: 2rem;
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.08);
}

.final-pill-row {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin: 1.4rem 0 0.75rem;
}

.link-card strong {
    display: block;
    margin-bottom: 0.55rem;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.link-card a {
    color: var(--brand);
    font-weight: 600;
    text-decoration: none;
    word-break: break-word;
}

.link-card a:hover {
    color: var(--brand-hover);
    text-decoration: underline;
}

.credentials-box {
    background: linear-gradient(180deg, rgba(247, 248, 250, 0.95), rgba(255, 255, 255, 0.95));
}

.credentials-box p {
    margin: 0;
    font-size: 0.94rem;
    line-height: 1.8;
}

.credentials-box p + p {
    margin-top: 0.5rem;
}

.note {
    margin-top: 1rem;
    font-size: 0.82rem;
    color: var(--text-muted);
}

@keyframes stepIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.55;
    }
}

@media (max-width: 900px) {
    .infra-options,
    .complete-links,
    .metric-grid,
    .site-preview-meta,
    .pipeline-stats,
    .form-row {
        grid-template-columns: 1fr;
    }

    .install-step {
        grid-template-columns: 24px minmax(0, 1fr);
    }

    .install-step-msg {
        grid-column: 2;
    }

    .snapshot-head,
    .step-actions,
    .complete-actions {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .btn {
        width: 100%;
    }

    .brand-wordmark {
        font-size: 1.8rem;
    }

    .radio-card,
    .checkbox-card,
    .subsection-card,
    .snapshot-card,
    .pipeline-card {
        padding: 1rem;
    }
}