:root {
    --color-ink: #111827;
    --color-muted: #64748b;
    --color-line: #dbe5f3;
    --color-soft: #f4f8ff;
    --color-panel: #ffffff;
    --color-primary: #2632a0;
    --color-primary-bright: #1687f3;
    --color-teal: #0f9f8f;
    --color-green: #20a56b;
    --color-gold: #d89522;
    --shadow-soft: 0 18px 45px rgba(31, 46, 100, 0.13);
    --radius-card: 8px;
    --radius-pill: 999px;
    color-scheme: light;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--color-ink);
    background: #ffffff;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid rgba(219, 229, 243, 0.9);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
}

.shell {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}

.header-inner {
    display: flex;
    min-height: 76px;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    color: var(--color-primary);
}

.brand-mark {
    display: inline-grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-bright));
    color: #ffffff;
    font-weight: 900;
}

.nav {
    display: flex;
    align-items: center;
    gap: 22px;
    color: #1e2a52;
    font-size: 0.95rem;
    font-weight: 650;
}

.nav a {
    color: #26365f;
}

.nav a:hover,
.nav a.is-active {
    color: var(--color-primary-bright);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.button {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 9px;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    padding: 0 20px;
    font-weight: 800;
    line-height: 1;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button:disabled,
.button[aria-disabled="true"] {
    cursor: not-allowed;
    opacity: 0.55;
    transform: none;
    box-shadow: none;
}

.button-primary {
    background: var(--color-primary-bright);
    color: #ffffff;
    box-shadow: 0 14px 28px rgba(22, 135, 243, 0.24);
}

.button-secondary {
    border-color: var(--color-line);
    background: #ffffff;
    color: var(--color-primary);
}

.hero {
    position: relative;
    overflow: hidden;
    min-height: 680px;
    padding: 122px 0 78px;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.86) 38%, rgba(244, 248, 255, 0.62) 100%),
        linear-gradient(135deg, #ffffff 0%, #edf5ff 100%);
}

.hero-grid {
    position: relative;
    display: block;
}

.hero-copy {
    position: relative;
    z-index: 2;
    max-width: 760px;
    padding: 36px 0;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 22px;
    color: var(--color-primary);
    font-size: 0.88rem;
    font-weight: 850;
    text-transform: uppercase;
}

.eyebrow::before {
    display: inline-block;
    width: 34px;
    height: 3px;
    border-radius: 10px;
    background: var(--color-teal);
    content: "";
}

.hero h1 {
    max-width: 660px;
    margin: 0;
    color: var(--color-primary);
    font-size: 4.3rem;
    line-height: 1.02;
}

.hero-lead {
    max-width: 680px;
    margin: 26px 0 0;
    color: #26365f;
    font-size: 1.3rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.trust-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    max-width: 720px;
    margin-top: 42px;
}

.trust-item {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    padding: 16px;
    background: rgba(255, 255, 255, 0.78);
    color: #26365f;
    font-weight: 700;
}

.hero-product {
    position: absolute;
    inset: -30px -70px auto 40%;
    z-index: 1;
    min-height: 510px;
    opacity: 0.82;
    pointer-events: none;
}

.product-board {
    position: absolute;
    inset: 0 0 auto auto;
    width: min(760px, 100%);
    border: 1px solid rgba(219, 229, 243, 0.94);
    border-radius: var(--radius-card);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.board-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-line);
    padding: 18px 20px;
    color: var(--color-primary);
    font-weight: 850;
}

.board-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-green);
    font-size: 0.9rem;
}

.pulse {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-green);
    box-shadow: 0 0 0 7px rgba(32, 165, 107, 0.13);
}

.migration-flow {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 14px;
    padding: 22px;
    align-items: stretch;
}

.mailbox-card,
.progress-card,
.mini-card,
.plan-card,
.feature-card,
.check-card,
.installer-card,
.form-card {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    background: var(--color-panel);
}

.mailbox-card {
    padding: 18px;
}

.mailbox-card small {
    display: block;
    color: var(--color-muted);
    font-weight: 750;
}

.mailbox-card strong {
    display: block;
    margin-top: 8px;
    color: var(--color-primary);
}

.flow-arrow {
    display: grid;
    width: 52px;
    height: 52px;
    place-items: center;
    align-self: center;
    border-radius: 50%;
    background: #eef6ff;
    color: var(--color-primary-bright);
    font-size: 1.8rem;
}

.progress-card {
    margin: 0 22px 22px;
    padding: 20px;
}

.progress-meta {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    color: #26365f;
    font-weight: 850;
}

.progress-track {
    overflow: hidden;
    height: 12px;
    margin: 16px 0;
    border-radius: var(--radius-pill);
    background: #e8eef8;
}

.progress-fill {
    width: 67%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-bright));
}

.board-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding: 0 22px 22px;
}

.mini-card {
    padding: 14px;
}

.mini-card span {
    color: var(--color-muted);
    font-size: 0.82rem;
    font-weight: 750;
}

.mini-card strong {
    display: block;
    margin-top: 6px;
    color: var(--color-ink);
}

.section {
    padding: 86px 0;
}

.section-soft {
    background: var(--color-soft);
}

.section-heading {
    max-width: 780px;
    margin-bottom: 36px;
}

.section-heading h2 {
    margin: 0;
    color: var(--color-primary);
    font-size: 2.5rem;
    line-height: 1.12;
}

.section-heading p {
    margin: 14px 0 0;
    color: var(--color-muted);
    font-size: 1.08rem;
}

.feature-grid,
.plan-grid,
.check-grid,
.installer-grid,
.dashboard-grid,
.data-grid,
.quick-link-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.feature-card,
.plan-card,
.check-card,
.installer-card,
.form-card,
.quick-link {
    padding: 24px;
    box-shadow: 0 10px 24px rgba(31, 46, 100, 0.06);
}

.feature-icon {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: 50%;
    background: #eef6ff;
    color: var(--color-primary-bright);
    font-weight: 900;
}

.feature-card h3,
.plan-card h3,
.check-card h3,
.installer-card h3 {
    margin: 16px 0 8px;
    color: #18245c;
}

.feature-card p,
.plan-card p,
.check-card p,
.installer-card p,
.quick-link p {
    margin: 0;
    color: var(--color-muted);
}

.quick-link {
    display: block;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    background: #ffffff;
}

.quick-link strong {
    display: block;
    margin-bottom: 6px;
    color: var(--color-primary);
}

.quick-link:hover {
    border-color: rgba(22, 135, 243, 0.45);
    box-shadow: 0 16px 34px rgba(22, 135, 243, 0.11);
}

.steps {
    display: grid;
    gap: 12px;
    counter-reset: step;
}

.step-row {
    display: grid;
    grid-template-columns: 76px 1fr;
    gap: 18px;
    align-items: start;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    padding: 20px;
    background: #ffffff;
}

.step-row::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    color: var(--color-primary-bright);
    font-size: 1.8rem;
    font-weight: 900;
}

.step-row h3 {
    margin: 0 0 6px;
    color: var(--color-primary);
}

.step-row p {
    margin: 0;
    color: var(--color-muted);
}

.plan-card {
    display: flex;
    min-height: 420px;
    flex-direction: column;
}

.plan-card.is-featured {
    border-color: rgba(22, 135, 243, 0.45);
    box-shadow: 0 22px 48px rgba(22, 135, 243, 0.16);
}

.price {
    margin: 18px 0;
    color: var(--color-primary);
    font-size: 1.8rem;
    font-weight: 900;
}

.feature-list {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.feature-list li {
    display: flex;
    gap: 10px;
    color: #26365f;
}

.feature-list li::before {
    content: "";
    flex: 0 0 auto;
    width: 9px;
    height: 9px;
    margin-top: 0.55rem;
    border-radius: 50%;
    background: var(--color-green);
}

.tag {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    border-radius: var(--radius-pill);
    padding: 6px 10px;
    background: #edf9f6;
    color: var(--color-teal);
    font-size: 0.78rem;
    font-weight: 850;
}

.status-list {
    display: grid;
    gap: 12px;
}

.status-row {
    display: grid;
    grid-template-columns: 92px 1fr;
    gap: 14px;
    align-items: start;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    padding: 16px;
    background: #ffffff;
}

.status-row-wide {
    grid-template-columns: 150px 1fr;
}

.status-badge {
    display: inline-flex;
    justify-content: center;
    border-radius: var(--radius-pill);
    padding: 5px 10px;
    font-size: 0.76rem;
    font-weight: 900;
    text-transform: uppercase;
}

.status-pass {
    background: #e9f8f1;
    color: #08764b;
}

.status-warn {
    background: #fff6df;
    color: #94620b;
}

.status-fail {
    background: #ffebef;
    color: #b4233a;
}

.status-info {
    background: #eaf4ff;
    color: #1557a8;
}

.cockpit-card {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(260px, 0.8fr);
    gap: 18px;
    align-items: stretch;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    padding: 24px;
    background: #ffffff;
    box-shadow: 0 12px 28px rgba(31, 46, 100, 0.07);
}

.cockpit-main h2,
.cockpit-side h3,
.wizard-step h3 {
    margin: 12px 0 8px;
    color: var(--color-primary);
}

.cockpit-main p,
.cockpit-side p,
.wizard-step p,
.credential-panel p {
    margin: 0;
    color: var(--color-muted);
}

.cockpit-side {
    border-left: 1px solid var(--color-line);
    padding-left: 20px;
}

.wizard-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.wizard-step {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    padding: 18px;
    background: #ffffff;
}

.wizard-step-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.step-number {
    display: inline-grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border-radius: 50%;
    background: #eef6ff;
    color: var(--color-primary-bright);
    font-weight: 900;
}

.credential-panel {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    padding: 14px;
    background: #f8fbff;
}

.credential-panel summary {
    cursor: pointer;
    color: var(--color-primary);
    font-weight: 850;
}

.credential-panel .form-stack {
    margin-top: 14px;
}

.utility-hero {
    padding: 72px 0 38px;
    background: linear-gradient(135deg, #ffffff, #eef6ff);
}

.utility-hero h1 {
    margin: 0;
    color: var(--color-primary);
    font-size: 3rem;
}

.utility-hero p {
    max-width: 760px;
    color: var(--color-muted);
    font-size: 1.1rem;
}

.notice {
    border: 1px solid rgba(216, 149, 34, 0.32);
    border-radius: var(--radius-card);
    padding: 18px;
    background: #fff9ec;
    color: #684409;
}

.notice-error {
    border-color: rgba(180, 35, 58, 0.28);
    background: #ffebef;
    color: #8a1f32;
}

.notice-success {
    border-color: rgba(32, 165, 107, 0.3);
    background: #eefbf5;
    color: #08764b;
}

.empty-state {
    border: 1px dashed #b8c7dc;
    border-radius: var(--radius-card);
    padding: 22px;
    background: #ffffff;
    color: var(--color-muted);
}

.empty-state h3 {
    margin: 0 0 8px;
    color: var(--color-primary);
}

.empty-state p {
    margin: 0;
}

.flow-list {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: beta-flow;
}

.flow-list li {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 12px;
    align-items: start;
    color: #26365f;
}

.flow-list li::before {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border-radius: 50%;
    background: #eef6ff;
    color: var(--color-primary-bright);
    font-size: 0.84rem;
    font-weight: 900;
    counter-increment: beta-flow;
    content: counter(beta-flow);
}

.compact-flow {
    gap: 7px;
}

.compact-flow li {
    grid-template-columns: 32px 1fr;
    font-size: 0.94rem;
}

.compact-flow li::before {
    width: 26px;
    height: 26px;
    font-size: 0.75rem;
}

.auth-shell {
    display: grid;
    min-height: calc(100vh - 76px);
    place-items: center;
    padding: 72px 24px;
    background: linear-gradient(135deg, #f7fbff 0%, #ffffff 48%, #eef6ff 100%);
}

.auth-panel {
    width: min(100%, 460px);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    padding: 34px;
    background: #ffffff;
    box-shadow: var(--shadow-soft);
}

.auth-panel h1 {
    margin: 0;
    color: var(--color-primary);
    font-size: 2.4rem;
    line-height: 1.08;
}

.auth-panel p {
    color: var(--color-muted);
}

.form-stack {
    display: grid;
    gap: 16px;
    margin-top: 24px;
}

.form-stack label {
    display: grid;
    gap: 7px;
    color: #26365f;
    font-weight: 800;
}

.form-stack input,
.form-stack select,
.form-stack textarea {
    width: 100%;
    min-height: 48px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    padding: 0 14px;
    color: var(--color-ink);
    font: inherit;
    background: #ffffff;
}

.form-stack input:focus,
.form-stack select:focus,
.form-stack textarea:focus {
    border-color: var(--color-primary-bright);
    outline: 3px solid rgba(22, 135, 243, 0.15);
}

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

.form-error {
    margin-top: 18px;
    border: 1px solid #ffd0d7;
    border-radius: var(--radius-card);
    padding: 12px 14px;
    background: #fff1f3;
    color: #a31d35;
    font-weight: 750;
}

.form-success {
    margin-top: 18px;
    border: 1px solid #bfefd9;
    border-radius: var(--radius-card);
    padding: 12px 14px;
    background: #eefbf5;
    color: #08764b;
    font-weight: 750;
}

.form-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    margin-top: 22px;
    color: var(--color-primary);
    font-weight: 800;
}

.form-links a:hover {
    color: var(--color-primary-bright);
}

.text-link {
    color: var(--color-primary);
    font-weight: 850;
}

.text-link:hover {
    color: var(--color-primary-bright);
}

.inline-form {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.check-option {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #26365f;
    font-weight: 800;
}

.check-option input {
    width: auto;
    min-height: auto;
    margin-top: 0.35rem;
}

.check-option small {
    display: block;
    margin-top: 3px;
    color: var(--color-muted);
    font-weight: 650;
}

.check-option-warning {
    border: 1px solid rgba(180, 35, 58, 0.22);
    border-radius: var(--radius-card);
    padding: 14px;
    background: #fff5f7;
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    background: #ffffff;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

.data-table th,
.data-table td {
    border-bottom: 1px solid var(--color-line);
    padding: 13px 14px;
    text-align: left;
    vertical-align: top;
}

.data-table th {
    color: #26365f;
    font-size: 0.86rem;
    font-weight: 850;
}

.data-table td {
    color: var(--color-muted);
}

.stack-top {
    margin-top: 24px;
}

.footer {
    border-top: 1px solid var(--color-line);
    padding: 34px 0;
    background: #f8fbff;
    color: var(--color-muted);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 14px;
    font-weight: 750;
}

.footer-links a:hover {
    color: var(--color-primary-bright);
}

@media (max-width: 940px) {
    .nav {
        display: none;
    }

    .hero {
        min-height: auto;
        padding-top: 76px;
    }

    .hero-grid,
    .feature-grid,
    .plan-grid,
    .check-grid,
    .installer-grid,
    .dashboard-grid,
    .data-grid,
    .quick-link-grid,
    .cockpit-card,
    .wizard-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero-product {
        position: relative;
        inset: auto;
        min-height: 500px;
        margin-top: 24px;
        opacity: 1;
    }

    .cockpit-side {
        border-left: 0;
        border-top: 1px solid var(--color-line);
        padding-top: 18px;
        padding-left: 0;
    }
}

@media (max-width: 640px) {
    .shell {
        width: min(100% - 28px, 1180px);
    }

    .header-actions .button-secondary {
        display: none;
    }

    .hero h1 {
        font-size: 2.45rem;
    }

    .hero-lead,
    .section-heading p {
        font-size: 1rem;
    }

    .trust-strip,
    .migration-flow,
    .board-grid,
    .status-row,
    .status-row-wide,
    .step-row {
        grid-template-columns: 1fr;
    }

    .flow-arrow {
        transform: rotate(90deg);
    }

    .footer-inner {
        flex-direction: column;
    }

    .footer-links {
        justify-content: flex-start;
    }
}