:root {
    color-scheme: dark;
    --bg: #0b0e14;
    --bg-elevated: #131826;
    --bg-input: #0e1320;
    --surface-border: #232a3a;
    --text: #eef2fb;
    --text-muted: #9aa4bd;
    --primary: #e23b54;
    --primary-strong: #ff5069;
    --primary-contrast: #ffffff;
    --accent: #4ad6c4;
    --danger: #ff6b6b;
    --danger-bg: #2a1417;
    --success: #43d18a;
    --success-bg: #102217;
    --warn: #f0b450;
    --focus: #79b8ff;
    --radius: 12px;
    --radius-sm: 8px;
    --maxw: 760px;
    --font: "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", system-ui, sans-serif;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: radial-gradient(1200px 600px at 50% -10%, #1a2235 0%, var(--bg) 60%) no-repeat;
    color: var(--text);
    font-family: var(--font);
    font-size: 17px;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: var(--maxw);
    margin-inline: auto;
    padding-inline: 20px;
}

a {
    color: var(--primary-strong);
    text-underline-offset: 3px;
}

a:hover {
    color: var(--primary);
}

:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 2px;
    border-radius: 4px;
}

.skip-link {
    position: absolute;
    left: 12px;
    top: -60px;
    background: var(--primary);
    color: var(--primary-contrast);
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    z-index: 100;
    transition: top 0.15s ease;
}

.skip-link:focus {
    top: 12px;
    color: var(--primary-contrast);
}

.site-header {
    border-bottom: 1px solid var(--surface-border);
    background: rgba(11, 14, 20, 0.7);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 20;
}

.header-inner,
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-block: 14px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    text-decoration: none;
    color: var(--text);
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), #8a2bd6);
    color: #fff;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.lang-switch {
    display: flex;
    gap: 6px;
}

.lang-link {
    display: inline-block;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 14px;
    border: 1px solid transparent;
}

.lang-link:hover {
    color: var(--text);
    border-color: var(--surface-border);
}

.lang-link.is-active {
    color: var(--text);
    background: var(--bg-elevated);
    border-color: var(--surface-border);
}

.nav-toggle {
    display: none;
    align-items: center;
    gap: 9px;
    background: var(--bg-elevated);
    color: var(--text);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-sm);
    padding: 9px 13px;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

.nav-toggle-bars,
.nav-toggle-bars::before,
.nav-toggle-bars::after {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}

.nav-toggle-bars {
    position: relative;
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
    content: "";
    position: absolute;
    left: 0;
}

.nav-toggle-bars::before {
    top: -6px;
}

.nav-toggle-bars::after {
    top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after {
    transform: translateY(-6px) rotate(-45deg);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 22px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    display: inline-block;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    border: 1px solid transparent;
}

.nav-links a:hover {
    color: var(--text);
    border-color: var(--surface-border);
}

@media (max-width: 720px) {
    html.js .nav-toggle {
        display: inline-flex;
    }

    .header-inner {
        flex-wrap: wrap;
        row-gap: 12px;
    }

    .site-nav {
        flex-basis: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
    }

    .nav-links a {
        padding: 12px 14px;
        border: 1px solid var(--surface-border);
    }

    .lang-switch {
        justify-content: flex-start;
    }

    html.js .site-nav {
        display: none;
    }

    html.js .site-nav.is-open {
        display: flex;
    }
}

main.container {
    flex: 1 0 auto;
    padding-block: 36px 64px;
}

h1 {
    font-size: clamp(1.7rem, 4vw, 2.3rem);
    line-height: 1.2;
    margin: 0 0 12px;
}

h2 {
    font-size: 1.3rem;
    margin: 28px 0 10px;
}

.lead {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 60ch;
}

.page-intro {
    margin-bottom: 28px;
}

.why-link a {
    font-weight: 600;
}

form.account-form {
    margin-top: 8px;
}

form.account-form.narrow {
    max-width: 440px;
}

fieldset {
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    background: var(--bg-elevated);
    padding: 20px 22px 6px;
    margin: 0 0 22px;
}

legend {
    font-weight: 700;
    font-size: 1.05rem;
    padding-inline: 8px;
    color: var(--text);
}

.field {
    margin-bottom: 20px;
}

.field > label {
    display: block;
    font-weight: 600;
    margin-bottom: 4px;
}

.req {
    color: var(--primary-strong);
}

.field-hint {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-input);
    color: var(--text);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-sm);
    font: inherit;
    transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

input:hover,
select:hover,
textarea:hover {
    border-color: #34405a;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--focus);
    box-shadow: 0 0 0 3px rgba(121, 184, 255, 0.25);
    outline: none;
}

textarea {
    resize: vertical;
    min-height: 84px;
}

.has-error input,
.has-error select,
.has-error textarea {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.18);
}

.field-error {
    color: var(--danger);
    font-size: 0.92rem;
    margin: 6px 0 0;
    font-weight: 600;
}

.checkbox-field .checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-weight: 500;
}

.checkbox input {
    width: 22px;
    height: 22px;
    margin-top: 2px;
    accent-color: var(--primary);
    flex: none;
}

.checkbox-field .field-hint {
    margin-left: 34px;
    margin-top: 4px;
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin-top: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 22px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.08s ease, background 0.12s ease, border-color 0.12s ease;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    color: var(--primary-contrast);
}

.btn-primary:hover {
    color: var(--primary-contrast);
    filter: brightness(1.06);
}

.btn-ghost {
    background: transparent;
    border-color: var(--surface-border);
    color: var(--text);
}

.btn-ghost:hover {
    color: var(--text);
    border-color: #3a4560;
    background: var(--bg-elevated);
}

.alert {
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    font-weight: 600;
}

.alert-error {
    background: var(--danger-bg);
    border-color: #5a2730;
    color: #ffc4c4;
}

.alert-success {
    background: var(--success-bg);
    border-color: #1e4d36;
    color: #b6f0d0;
}

.error-summary {
    border: 1px solid #5a2730;
    background: var(--danger-bg);
    border-radius: var(--radius);
    padding: 16px 18px;
    margin-bottom: 24px;
}

.error-summary-title {
    margin: 0 0 8px;
    font-size: 1.1rem;
    color: #ffc4c4;
}

.error-summary ul {
    margin: 0;
    padding-left: 20px;
}

.error-summary a {
    color: #ffd0d0;
}

.card {
    border: 1px solid var(--surface-border);
    background: var(--bg-elevated);
    border-radius: var(--radius);
    padding: 22px 24px;
    margin-bottom: 22px;
}

.card-hint {
    color: var(--text-muted);
    margin-top: 0;
}

.summary-list {
    margin: 0;
}

.summary-list > div {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 16px;
    padding: 10px 0;
    border-bottom: 1px solid var(--surface-border);
}

.summary-list > div:last-child {
    border-bottom: none;
}

.summary-list dt {
    color: var(--text-muted);
    min-width: 160px;
    margin: 0;
    font-weight: 600;
}

.summary-list dd {
    margin: 0;
    font-weight: 600;
}

.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
}

.badge-ok {
    background: var(--success-bg);
    color: var(--success);
}

.badge-warn {
    background: #2a2210;
    color: var(--warn);
}

.success-panel {
    text-align: center;
    max-width: 560px;
    margin-inline: auto;
}

.success-badge {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    margin: 0 auto 18px;
    font-size: 2rem;
    background: var(--success-bg);
    color: var(--success);
    border: 2px solid #1e4d36;
}

.success-badge.badge-error {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: #5a2730;
}

.handoff {
    text-align: left;
    border: 1px solid var(--surface-border);
    background: var(--bg-elevated);
    border-radius: var(--radius);
    padding: 22px 24px;
    margin: 24px 0;
}

.handoff-actions {
    margin: 14px 0 22px;
}

.handoff-code {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.code-box {
    font-family: "Cascadia Code", "Consolas", monospace;
    letter-spacing: 0.5px;
    flex: 1 1 280px;
    word-break: break-all;
}

.steps {
    margin: 18px 0 12px;
    padding-left: 22px;
}

.steps li {
    margin-bottom: 8px;
}

.token-note {
    color: var(--text-muted);
    font-size: 0.92rem;
}

.legal {
    max-width: 70ch;
}

.legal-version {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.legal-section ul {
    padding-left: 22px;
}

.back-link {
    margin-top: 32px;
}

.site-footer {
    border-top: 1px solid var(--surface-border);
    color: var(--text-muted);
    flex-shrink: 0;
}

.footer-inner {
    flex-wrap: wrap;
}

.footer-company {
    margin: 0;
    font-size: 0.92rem;
}

.footer-links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.92rem;
}

.footer-links a:hover {
    color: var(--text);
    text-decoration: underline;
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

code {
    background: var(--bg-input);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

@media (max-width: 560px) {
    body {
        font-size: 16px;
    }

    fieldset {
        padding-inline: 16px;
    }

    .summary-list dt {
        min-width: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        scroll-behavior: auto !important;
    }
}

@media (prefers-contrast: more) {
    :root {
        --text-muted: #c7cee0;
        --surface-border: #3a4560;
    }
}