:root {
    --auth-bg: #020617;
    --auth-surface: rgba(15, 23, 42, 0.92);
    --auth-surface-soft: rgba(17, 24, 39, 0.88);
    --auth-field: rgba(15, 23, 42, 0.94);
    --auth-border: #1e293b;
    --auth-field-border: #334155;
    --auth-text: #f8fafc;
    --auth-muted: #94a3b8;
    --auth-muted-strong: #cbd5e1;
    --auth-brand: #4f46e5;
    --auth-accent: #06b6d4;
    --auth-danger: #fb7185;
    --auth-success: #34d399;
    --auth-shadow: 0 28px 80px rgba(0, 0, 0, 0.46);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    min-height: 100vh;
    margin: 0;
    background: var(--auth-bg);
    color: var(--auth-text);
    font-family: "Inter", Arial, sans-serif;
    line-height: 1.5;
}

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

button,
input {
    font: inherit;
}

.auth-container {
    width: min(100% - 40px, 1160px);
    margin: 0 auto;
}

.auth-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid rgba(30, 41, 59, 0.82);
    background: rgba(2, 6, 23, 0.88);
    backdrop-filter: blur(14px);
}

.auth-nav-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 28px;
    min-height: 78px;
}

.auth-brand,
.auth-nav-links {
    display: inline-flex;
    align-items: center;
}

.auth-brand {
    gap: 12px;
    color: var(--auth-text);
    font-size: 1.15rem;
    font-weight: 800;
}

.auth-brand-mark,
.auth-card-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--auth-brand), var(--auth-accent));
    color: #020617;
    font-weight: 900;
}

.auth-brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 12px;
}

.auth-nav-links {
    gap: 26px;
    color: var(--auth-muted-strong);
    font-size: 0.95rem;
    font-weight: 700;
}

.auth-nav-links a {
    transition: color 0.2s ease, transform 0.2s ease;
}

.auth-nav-links a:hover,
.auth-nav-links a:focus {
    color: var(--auth-accent);
}

.auth-nav-cta {
    justify-self: end;
    min-width: 156px;
    padding: 12px 24px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--auth-brand), var(--auth-accent));
    color: #020617;
    font-size: 0.8rem;
    font-weight: 800;
    text-align: center;
    text-transform: uppercase;
    box-shadow: 0 14px 30px rgba(79, 70, 229, 0.34);
    transition: transform 0.2s ease;
}

.auth-nav-cta:hover,
.auth-nav-cta:focus {
    transform: translateY(-1px);
}

.auth-page {
    position: relative;
    isolation: isolate;
    min-height: calc(100vh - 78px);
    padding: clamp(54px, 8vw, 96px) 0 80px;
    background:
        radial-gradient(circle at 12% 8%, rgba(79, 70, 229, 0.24), transparent 28%),
        radial-gradient(circle at 88% 18%, rgba(6, 182, 212, 0.18), transparent 26%),
        linear-gradient(to right, rgba(148, 163, 184, 0.14) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(148, 163, 184, 0.14) 1px, transparent 1px),
        linear-gradient(180deg, #020617 0%, #07111f 48%, #020617 100%);
    background-size: auto, auto, 80px 80px, 80px 80px, auto;
}

.auth-page::before {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    content: "";
    background:
        linear-gradient(180deg, rgba(2, 6, 23, 0.78), rgba(2, 6, 23, 0.86)),
        url("../images/backgrounds/account-opening-market-bg.png") center / cover no-repeat;
    opacity: 0.34;
    filter: saturate(0.82) contrast(0.96);
}

.auth-shell {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.75fr);
    align-items: stretch;
    gap: 28px;
}

.auth-visual,
.auth-card {
    border: 1px solid rgba(30, 41, 59, 0.92);
    border-radius: 8px;
    background: var(--auth-surface);
    box-shadow: var(--auth-shadow);
}

.auth-visual {
    display: flex;
    min-height: 560px;
    flex-direction: column;
    justify-content: flex-end;
    overflow: hidden;
    padding: clamp(34px, 5vw, 56px);
    background:
        linear-gradient(135deg, rgba(79, 70, 229, 0.2), transparent 42%),
        linear-gradient(180deg, rgba(15, 23, 42, 0.55), rgba(15, 23, 42, 0.96)),
        var(--auth-surface);
}

.auth-kicker,
.auth-card-eyebrow {
    color: var(--auth-accent);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.28em;
    text-transform: uppercase;
}

.auth-visual h1 {
    max-width: 620px;
    margin: 18px 0 18px;
    color: var(--auth-text);
    font-size: clamp(2.4rem, 6vw, 4.8rem);
    font-weight: 900;
    letter-spacing: 0;
    line-height: 0.95;
}

.auth-visual p {
    max-width: 560px;
    margin: 0;
    color: var(--auth-muted-strong);
    font-size: 1.05rem;
}

.auth-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 34px;
}

.auth-metrics span {
    padding: 9px 12px;
    border: 1px solid rgba(51, 65, 85, 0.82);
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.78);
    color: var(--auth-muted-strong);
    font-size: 0.82rem;
    font-weight: 700;
}

.auth-card {
    align-self: center;
    padding: clamp(34px, 5vw, 50px);
}

.auth-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 30px;
}

.auth-card-mark {
    width: 44px;
    height: 44px;
    border-radius: 14px;
}

.auth-card h2 {
    margin: 0 0 8px;
    color: var(--auth-text);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    letter-spacing: 0;
    line-height: 1;
}

.auth-card .auth-subtitle {
    margin: 0 0 34px;
    color: var(--auth-muted-strong);
    font-size: 1rem;
}

.auth-alert {
    margin-bottom: 20px;
    padding: 13px 15px;
    border: 1px solid rgba(52, 211, 153, 0.42);
    border-radius: 8px;
    background: rgba(16, 185, 129, 0.12);
    color: #bbf7d0;
    font-size: 0.9rem;
    font-weight: 700;
}

.auth-card .form-group {
    margin-bottom: 22px;
}

.auth-card .form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--auth-muted-strong);
    font-size: 0.9rem;
    font-weight: 800;
}

.auth-card .form-group .input-box {
    position: relative;
}

.auth-card .form-group .input-box i {
    position: absolute;
    top: 50%;
    left: 16px;
    color: var(--auth-muted);
    font-size: 0.92rem;
    pointer-events: none;
    transform: translateY(-50%);
}

.auth-card .form-group input {
    width: 100%;
    height: 54px;
    border: 1px solid var(--auth-field-border);
    border-radius: 8px;
    outline: none;
    background: var(--auth-field);
    color: var(--auth-text);
    padding: 0 18px 0 46px;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.auth-card .form-group input::placeholder {
    color: #64748b;
}

.auth-card .form-group input:focus {
    border-color: var(--auth-accent);
    background: rgba(15, 23, 42, 0.98);
    box-shadow: 0 0 0 4px rgba(6, 182, 212, 0.16);
}

.auth-card .form-group input.is-invalid {
    border-color: var(--auth-danger);
}

.auth-card .form-group input:-webkit-autofill,
.auth-card .form-group input:-webkit-autofill:hover,
.auth-card .form-group input:-webkit-autofill:focus {
    border-color: var(--auth-field-border);
    -webkit-text-fill-color: var(--auth-text);
    caret-color: var(--auth-text);
    box-shadow: 0 0 0 1000px #0f172a inset;
    transition: background-color 9999s ease-out, color 9999s ease-out;
}

.auth-card .invalid-feedback {
    display: block;
    margin-top: 7px;
    color: var(--auth-danger);
    font-size: 0.82rem;
    font-weight: 700;
}

.auth-card .remember-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin: 4px 0 24px;
    color: var(--auth-muted-strong);
    font-size: 0.9rem;
}

.auth-card .remember-row label {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin: 0;
    cursor: pointer;
}

.auth-card .remember-row input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--auth-accent);
}

.auth-card .forgot-link,
.auth-card .auth-footer-link a {
    color: var(--auth-accent);
    font-weight: 800;
}

.auth-card .forgot-link:hover,
.auth-card .forgot-link:focus,
.auth-card .auth-footer-link a:hover,
.auth-card .auth-footer-link a:focus {
    color: #67e8f9;
}

.auth-card .btn-auth {
    display: inline-flex;
    width: 100%;
    min-height: 56px;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 0;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--auth-brand), var(--auth-accent));
    color: #020617;
    cursor: pointer;
    font-weight: 900;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 18px 35px rgba(79, 70, 229, 0.32);
}

.auth-card .btn-auth:hover,
.auth-card .btn-auth:focus {
    transform: translateY(-1px);
    box-shadow: 0 22px 42px rgba(6, 182, 212, 0.22);
}

.auth-card .auth-footer-link {
    margin: 24px 0 0;
    color: var(--auth-muted-strong);
    font-size: 0.92rem;
    text-align: center;
}

@media (max-width: 980px) {
    .auth-nav-inner {
        grid-template-columns: 1fr auto;
    }

    .auth-nav-links {
        display: none;
    }

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

    .auth-visual {
        min-height: auto;
    }
}

@media (max-width: 640px) {
    .auth-container {
        width: min(100% - 24px, 1160px);
    }

    .auth-nav-inner {
        min-height: 74px;
        gap: 14px;
    }

    .auth-brand {
        font-size: 1rem;
    }

    .auth-nav-cta {
        min-width: 0;
        padding: 10px 14px;
        font-size: 0.72rem;
    }

    .auth-page {
        padding: 28px 0 52px;
    }

    .auth-visual {
        padding: 28px 22px;
    }

    .auth-visual h1 {
        font-size: 2.25rem;
    }

    .auth-card {
        padding: 30px 22px;
    }

    .auth-card-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .auth-card .remember-row {
        align-items: flex-start;
        flex-direction: column;
    }
}