:root {
    --ink: #172033;
    --muted: #657086;
    --line: #dfe4ee;
    --surface: #ffffff;
    --canvas: #f3f5f9;
    --brand: #6558e8;
    --brand-dark: #5145cc;
    --brand-soft: #eeecff;
    --success: #176b45;
    --success-soft: #e8f7ef;
    --danger: #a82c3d;
    --danger-soft: #fff0f2;
    --warning: #76520b;
    --warning-soft: #fff7dc;
    --shadow: 0 24px 64px rgba(23, 32, 51, 0.13);
    font-family:
        Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
        "Segoe UI", sans-serif;
    color: var(--ink);
    background: var(--canvas);
    font-synthesis: none;
}

* {
    box-sizing: border-box;
}

body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    background: var(--canvas);
}

button,
input,
select {
    font: inherit;
}

button,
a,
input,
select {
    outline-color: var(--brand);
    outline-offset: 3px;
}

.auth-shell {
    display: grid;
    grid-template-columns: minmax(320px, 0.9fr) minmax(480px, 1.1fr);
    min-height: 100vh;
}

.brand-panel {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 100vh;
    overflow: hidden;
    padding: clamp(2rem, 5vw, 4.5rem);
    color: #ffffff;
    background:
        radial-gradient(circle at 90% 12%, rgba(154, 142, 255, 0.42), transparent 32%),
        linear-gradient(145deg, #1d2440 0%, #292453 52%, #4435a8 100%);
}

.brand-panel::after {
    position: absolute;
    right: -7rem;
    bottom: -8rem;
    width: 22rem;
    height: 22rem;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 50%;
    box-shadow:
        0 0 0 3.5rem rgba(255, 255, 255, 0.035),
        0 0 0 7rem rgba(255, 255, 255, 0.025);
    content: "";
}

.brand-mark {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    width: fit-content;
    gap: 0.75rem;
    color: #ffffff;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    text-decoration: none;
}

.brand-symbol {
    display: grid;
    width: 2.4rem;
    height: 2.4rem;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.34);
    border-radius: 0.75rem;
    background: rgba(255, 255, 255, 0.12);
}

.brand-symbol-image {
    object-fit: cover;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: 0 8px 24px rgba(11, 8, 59, 0.28);
}

.brand-copy {
    position: relative;
    z-index: 1;
    max-width: 34rem;
    margin: auto 0;
    padding: 4rem 0;
}

.eyebrow {
    margin: 0 0 1rem;
    color: #bdb6ff;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.14em;
}

.brand-copy h1 {
    max-width: 31rem;
    margin: 0;
    font-size: clamp(2.5rem, 5vw, 4.8rem);
    line-height: 0.99;
    letter-spacing: -0.055em;
}

.brand-copy > p:last-child {
    max-width: 30rem;
    margin: 1.75rem 0 0;
    color: rgba(255, 255, 255, 0.76);
    font-size: 1.05rem;
    line-height: 1.75;
}

.account-path {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 1.1rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.account-path li {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
}

.account-path li > span {
    display: grid;
    flex: 0 0 auto;
    width: 2rem;
    height: 2rem;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 800;
}

.account-path .current {
    color: #ffffff;
}

.account-path .current > span {
    border-color: #bdb6ff;
    background: #7569f0;
}

.account-path strong,
.account-path small {
    display: block;
}

.account-path strong {
    font-size: 0.94rem;
}

.account-path small {
    margin-top: 0.18rem;
    font-size: 0.78rem;
}

.form-panel {
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: clamp(1.5rem, 5vw, 5rem);
}

.auth-card {
    width: min(100%, 34rem);
    padding: clamp(1.5rem, 4vw, 3rem);
    border: 1px solid rgba(223, 228, 238, 0.9);
    border-radius: 1.5rem;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.auth-heading {
    margin-bottom: 1.75rem;
}

.mobile-brand {
    display: none;
    margin: 0 0 1.5rem;
    color: var(--brand);
    font-weight: 850;
}

.auth-heading h2,
.verification-view h2 {
    margin: 0;
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    letter-spacing: -0.035em;
}

.auth-heading p:last-child,
.verification-view > p:not(.eyebrow, .development-note) {
    margin: 0.65rem 0 0;
    color: var(--muted);
    line-height: 1.6;
}

.auth-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.3rem;
    margin-bottom: 1.5rem;
    padding: 0.3rem;
    border-radius: 0.85rem;
    background: #f0f2f7;
}

.auth-tab {
    min-height: 2.8rem;
    border: 0;
    border-radius: 0.65rem;
    color: var(--muted);
    background: transparent;
    font-weight: 750;
    cursor: pointer;
}

.auth-tab.active {
    color: var(--ink);
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(23, 32, 51, 0.08);
}

.auth-form {
    display: grid;
    gap: 1.15rem;
}

.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.field-group {
    display: grid;
    gap: 0.5rem;
}

.field-group label {
    color: #303a50;
    font-size: 0.88rem;
    font-weight: 750;
}

.optional-label {
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 600;
}

.verification-channel-fieldset {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

.verification-channel-fieldset legend {
    margin-bottom: 0.6rem;
    color: #303a50;
    font-size: 0.88rem;
    font-weight: 750;
}

.verification-channel-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.verification-channel-card {
    display: flex;
    align-items: flex-start;
    gap: 0.7rem;
    min-width: 0;
    padding: 0.9rem;
    border: 1px solid var(--line);
    border-radius: 0.8rem;
    background: #ffffff;
    cursor: pointer;
}

.verification-channel-card.selected {
    border-color: var(--brand);
    background: var(--brand-soft);
    box-shadow: 0 0 0 3px rgba(101, 88, 232, 0.08);
}

.verification-channel-card input {
    margin-top: 0.2rem;
    accent-color: var(--brand);
}

.verification-channel-card span,
.verification-channel-card strong,
.verification-channel-card small {
    display: block;
    min-width: 0;
}

.verification-channel-card strong {
    color: var(--ink);
    font-size: 0.9rem;
}

.verification-channel-card small {
    margin-top: 0.2rem;
    color: var(--muted);
    font-size: 0.75rem;
    line-height: 1.35;
}

.field-group input,
.field-group select {
    width: 100%;
    min-height: 3.15rem;
    padding: 0.8rem 0.95rem;
    border: 1px solid var(--line);
    border-radius: 0.75rem;
    color: var(--ink);
    background: #ffffff;
    font-size: 1rem;
    transition: border-color 150ms ease, box-shadow 150ms ease;
}

.field-group input:focus,
.field-group select:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 4px rgba(101, 88, 232, 0.11);
    outline: 0;
}

.field-group input::placeholder {
    color: #a0a8b7;
}

.field-hint {
    color: var(--muted);
    font-size: 0.78rem;
    line-height: 1.45;
}

.primary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3.15rem;
    padding: 0.8rem 1.1rem;
    border: 0;
    border-radius: 0.75rem;
    color: #ffffff;
    background: var(--brand);
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
    transition: background 150ms ease, transform 150ms ease;
}

.primary-button:hover {
    background: var(--brand-dark);
}

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

.primary-button:disabled {
    cursor: wait;
    opacity: 0.68;
}

.text-button {
    min-height: 2.6rem;
    padding: 0.5rem;
    border: 0;
    color: var(--brand-dark);
    background: transparent;
    font-weight: 750;
    cursor: pointer;
}

.auth-note {
    margin: 1.5rem 0 0;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.8rem;
    line-height: 1.5;
    text-align: center;
}

.status-message {
    margin-bottom: 1.2rem;
    padding: 0.85rem 1rem;
    border: 1px solid transparent;
    border-radius: 0.75rem;
    font-size: 0.88rem;
    line-height: 1.5;
}

.status-message.error {
    border-color: #f2c5cc;
    color: var(--danger);
    background: var(--danger-soft);
}

.status-message.success {
    border-color: #bfe5cf;
    color: var(--success);
    background: var(--success-soft);
}

.status-message.info {
    border-color: #efd999;
    color: var(--warning);
    background: var(--warning-soft);
}

.verification-view {
    text-align: center;
}

.verification-view .eyebrow {
    color: var(--brand-dark);
}

.verification-icon {
    display: grid;
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1.5rem;
    place-items: center;
    border-radius: 1.2rem;
    color: var(--brand-dark);
    background: var(--brand-soft);
    font-size: 1.5rem;
    font-weight: 900;
}

.verification-actions {
    display: grid;
    gap: 0.75rem;
    margin-top: 1.75rem;
}

.development-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3rem;
    padding: 0.75rem 1rem;
    border: 1px dashed var(--brand);
    border-radius: 0.75rem;
    color: var(--brand-dark);
    background: var(--brand-soft);
    font-weight: 800;
    text-decoration: none;
}

.development-code {
    padding: 0.9rem 1rem;
    border: 1px dashed var(--brand);
    border-radius: 0.75rem;
    color: var(--brand-dark);
    background: var(--brand-soft);
    font-size: 0.9rem;
}

.development-code strong {
    margin-left: 0.35rem;
    font-size: 1.15rem;
    letter-spacing: 0.16em;
}

.phone-code-form {
    display: grid;
    gap: 0.75rem;
    margin-top: 0.25rem;
    text-align: left;
}

.phone-code-form label {
    color: #303a50;
    font-size: 0.88rem;
    font-weight: 750;
}

.phone-code-form input {
    width: 100%;
    min-height: 3.5rem;
    padding: 0.8rem 1rem;
    border: 1px solid var(--line);
    border-radius: 0.75rem;
    color: var(--ink);
    background: #ffffff;
    font-size: 1.2rem;
    font-weight: 750;
    letter-spacing: 0.2em;
    text-align: center;
}

.phone-code-form input:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 4px rgba(101, 88, 232, 0.11);
    outline: 0;
}

.development-note {
    margin: 1.25rem 0 0;
    color: var(--muted);
    font-size: 0.78rem;
    line-height: 1.5;
}

[hidden] {
    display: none !important;
}

@media (max-width: 900px) {
    .auth-shell {
        grid-template-columns: 1fr;
    }

    .brand-panel {
        display: none;
    }

    .form-panel {
        padding: 1.25rem;
    }

    .mobile-brand {
        display: block;
    }
}

@media (max-width: 540px) {
    .auth-card {
        padding: 1.35rem;
        border-radius: 1.1rem;
    }

    .field-row {
        grid-template-columns: 1fr;
    }

    .auth-tabs {
        grid-template-columns: 1fr;
    }

    .verification-channel-options {
        grid-template-columns: 1fr;
    }
}

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

/* V3.0 account recovery */
.auth-inline-action {
    display: flex;
    justify-content: flex-end;
    margin-top: -0.4rem;
}

.text-button.compact {
    min-height: auto;
    padding: 0.15rem 0;
    font-size: 0.84rem;
}

.recovery-form {
    margin-top: 1.5rem;
}

/* V3.1.1 bilingual authentication */
.auth-language-picker { position:fixed; top:18px; right:18px; z-index:20; display:flex; align-items:center; gap:8px; padding:7px 9px 7px 11px; border:1px solid rgba(101,88,232,.18); border-radius:12px; background:rgba(255,255,255,.94); box-shadow:0 6px 20px rgba(16,24,40,.08); backdrop-filter:blur(8px); }
.auth-language-picker label { font-size:11px; font-weight:750; color:#667085; }
.auth-language-picker select { border:0; outline:0; background:transparent; color:#344054; font:inherit; font-size:12px; font-weight:750; cursor:pointer; }
@media (max-width:640px) { .auth-language-picker { position:absolute; top:10px; right:10px; } .auth-language-picker label { display:none; } }

.verification-channel-card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.verification-channel-card.disabled input {
    cursor: not-allowed;
}


/* V3.1.20 root auth + public marketing */
html { scroll-behavior: smooth; }
.marketing-shell { background:#fff; }
.marketing-section { width:min(1180px, calc(100% - 40px)); margin:0 auto; padding:clamp(4rem, 8vw, 7rem) 0; }
.marketing-intro { text-align:center; }
.marketing-eyebrow { margin:0 0 .9rem; color:var(--brand); font-size:.76rem; font-weight:850; letter-spacing:.15em; }
.marketing-section h2 { max-width:820px; margin:0; color:var(--ink); font-size:clamp(2rem, 4vw, 3.55rem); line-height:1.04; letter-spacing:-.045em; }
.marketing-intro h2 { margin-inline:auto; }
.marketing-lead { max-width:760px; margin:1.25rem auto 0; color:var(--muted); font-size:1.05rem; line-height:1.75; }
.compact-lead { margin-left:0; }
.feature-grid { display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:1rem; margin-top:3rem; text-align:left; }
.feature-card { min-height:230px; padding:1.6rem; border:1px solid var(--line); border-radius:1.25rem; background:linear-gradient(180deg,#fff,#fafaff); box-shadow:0 12px 34px rgba(23,32,51,.055); }
.feature-kicker { display:inline-grid; min-width:2rem; height:2rem; place-items:center; border-radius:.65rem; color:var(--brand-dark); background:var(--brand-soft); font-size:.72rem; font-weight:900; }
.feature-card h3 { margin:2rem 0 .65rem; font-size:1.2rem; letter-spacing:-.02em; }
.feature-card p { margin:0; color:var(--muted); line-height:1.65; }
.ai-section { display:grid; grid-template-columns:minmax(0,1fr) minmax(340px,.8fr); gap:clamp(2rem,6vw,6rem); align-items:center; border-top:1px solid #eef0f5; }
.ai-demo-card { display:grid; gap:.8rem; padding:1.25rem; border:1px solid rgba(101,88,232,.18); border-radius:1.4rem; background:#f8f7ff; box-shadow:0 20px 48px rgba(75,62,190,.08); }
.ai-demo-card span { display:block; padding:1rem 1.1rem; border:1px solid #e5e1ff; border-radius:.9rem; background:#fff; color:#3e3a60; font-weight:700; }
.pricing-section { border-top:1px solid #eef0f5; }
.pricing-heading { display:flex; justify-content:space-between; align-items:end; gap:2rem; }
.pricing-heading > p { max-width:390px; margin:0; color:var(--muted); line-height:1.65; }
.pricing-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:1rem; margin-top:2.5rem; }
.pricing-card { position:relative; min-height:280px; padding:1.6rem; border:1px solid var(--line); border-radius:1.25rem; background:#fff; box-shadow:0 14px 38px rgba(23,32,51,.06); }
.pricing-card[data-featured="true"] { border-color:rgba(101,88,232,.45); box-shadow:0 18px 48px rgba(101,88,232,.12); }
.pricing-badge { display:inline-flex; margin-bottom:1rem; padding:.35rem .6rem; border-radius:999px; color:var(--brand-dark); background:var(--brand-soft); font-size:.7rem; font-weight:850; letter-spacing:.05em; text-transform:uppercase; }
.pricing-card h3 { margin:0; font-size:1.3rem; }
.pricing-price { margin:1.2rem 0 .4rem; font-size:2.2rem; font-weight:900; letter-spacing:-.05em; }
.pricing-price small { color:var(--muted); font-size:.82rem; font-weight:700; letter-spacing:0; }
.pricing-card p { color:var(--muted); line-height:1.6; }
.marketing-primary { min-height:3.2rem; padding:.8rem 1.2rem; border:0; border-radius:.8rem; color:#fff; background:var(--brand); font-weight:850; cursor:pointer; box-shadow:0 10px 24px rgba(101,88,232,.2); }
.marketing-primary:hover { background:var(--brand-dark); }
.pricing-card .marketing-primary { width:100%; margin-top:1rem; }
.final-cta { display:flex; justify-content:space-between; align-items:center; gap:2rem; margin-bottom:4rem; padding-inline:clamp(1.5rem,4vw,3rem); border-radius:1.6rem; color:#fff; background:linear-gradient(135deg,#202641,#4435a8); }
.final-cta h2 { color:#fff; font-size:clamp(1.8rem,3vw,2.8rem); }
.final-cta p:not(.marketing-eyebrow) { margin:.8rem 0 0; color:rgba(255,255,255,.72); }
.final-cta .marketing-eyebrow { color:#c7c1ff; }
.final-cta .marketing-primary { flex:0 0 auto; color:var(--brand-dark); background:#fff; box-shadow:none; }
.public-footer { display:flex; justify-content:space-between; gap:1rem; width:min(1180px, calc(100% - 40px)); margin:0 auto; padding:2rem 0 2.5rem; border-top:1px solid #eef0f5; color:var(--muted); font-size:.86rem; }
.footer-logo { color:var(--ink); font-weight:900; text-decoration:none; }
@media (max-width:900px) { .feature-grid,.pricing-grid { grid-template-columns:1fr 1fr; } .ai-section { grid-template-columns:1fr; } .pricing-heading,.final-cta { align-items:flex-start; flex-direction:column; } }
@media (max-width:620px) { .marketing-section { width:min(100% - 28px,1180px); padding:3.5rem 0; } .feature-grid,.pricing-grid { grid-template-columns:1fr; } .feature-card { min-height:auto; } .public-footer { width:min(100% - 28px,1180px); flex-direction:column; } .final-cta { width:min(100% - 28px,1180px); padding:1.5rem; } }

/* v3.1.22 beta access */
.beta-plan-card {
    display: grid;
    gap: 0.3rem;
    padding: 0.9rem 1rem;
    border: 1px solid rgba(108, 99, 255, 0.24);
    border-radius: 14px;
    background: rgba(108, 99, 255, 0.07);
}
.beta-plan-card strong { font-size: 0.98rem; }
.beta-plan-card span { color: var(--muted, #667085); font-size: 0.86rem; line-height: 1.45; }