:root {
    --aa-bg: #f4f7fb;
    --aa-panel: #ffffff;
    --aa-text: #0f172a;
    --aa-muted: #64748b;
    --aa-line: #d7dee8;
    --aa-primary: #2563eb;
    --aa-primary-dark: #1d4ed8;
    --aa-danger: #b91c1c;
    --aa-danger-soft: #fef2f2;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    min-height: 100%;
    background: #091020;
}

body.aa-login-page {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    background: radial-gradient(circle at 15% 20%, rgba(37, 99, 235, 0.22), transparent 35%), #091020;
    color: var(--aa-text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
}

.aa-login-page a {
    color: inherit;
    text-decoration: none;
}

.aa-login-page button,
.aa-login-page input {
    font: inherit;
}

.aa-login-shell {
    width: 100%;
    min-height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.89fr);
    align-items: center;
    gap: 8vw;
}

.aa-login-brand {
    max-width: 620px;
    color: #ffffff;
}

.aa-login-eyebrow {
    color: #60a5fa;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.aa-login-brand h1 {
    margin: 14px 0 20px;
    font-size: clamp(40px, 5vw, 66px);
    line-height: 1.05;
    letter-spacing: -0.05em;
}

.aa-login-brand > p {
    max-width: 580px;
    margin: 0;
    color: #c4cddf;
    font-size: 18px;
    line-height: 1.7;
}

.aa-login-features {
    margin-top: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.aa-login-features span {
    padding: 10px 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: #dbe7f3;
    font-size: 14px;
}

.aa-login-card {
    padding: 38px;
    border-radius: 24px;
    background: var(--aa-panel);
    box-shadow: 0 28px 70px rgba(2, 6, 17, 0.45);
}

.aa-login-head {
    margin-bottom: 24px;
}

.aa-login-logo {
    display: block;
    width: auto;
    max-width: 190px;
    height: auto;
    max-height: 62px;
    margin-bottom: 18px;
    object-fit: contain;
    object-position: left center;
}

.aa-login-head h2 {
    margin: 0;
    color: var(--aa-text);
    font-size: 28px;
    line-height: 1.2;
}

.aa-login-head p {
    margin: 8px 0 0;
    color: var(--aa-muted);
    font-size: 15px;
    line-height: 1.5;
}

.aa-login-alert {
    margin: 0 0 20px;
    padding: 14px 16px;
    border: 1px solid #fecaca;
    border-radius: 12px;
    background: var(--aa-danger-soft);
    color: var(--aa-danger);
    font-size: 14px;
    font-weight: 700;
    line-height: 1.5;
}

.aa-login-form label {
    display: block;
    margin: 0 0 8px;
    color: #334155;
    font-size: 14px;
    font-weight: 750;
}

.aa-input-wrap {
    position: relative;
    margin-bottom: 18px;
}

.aa-input-wrap input {
    width: 100%;
    height: 48px;
    padding: 0 14px;
    border: 1px solid var(--aa-line);
    border-radius: 12px;
    background: #ffffff;
    color: var(--aa-text);
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.aa-input-wrap input:focus {
    border-color: var(--aa-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.aa-input-wrap.alert-validate input {
    border-color: #dc2626;
    box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.09);
}

.aa-input-wrap.alert-validate::after {
    content: attr(data-validate);
    display: block;
    margin-top: 7px;
    color: var(--aa-danger);
    font-size: 12px;
    font-weight: 700;
    line-height: 1.35;
}

.aa-login-error {
    display: block;
    min-height: 0;
    margin: -7px 0 14px;
    color: var(--aa-danger);
    font-size: 13px;
    font-weight: 700;
    line-height: 1.4;
}

.aa-login-error:empty {
    display: none;
}

.aa-login-button {
    position: relative;
    width: 100%;
    min-height: 48px;
    padding: 11px 18px;
    border: 1px solid transparent;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--aa-primary);
    color: #ffffff;
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.25);
    font-weight: 800;
    line-height: 1.2;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.aa-login-button:hover {
    transform: translateY(-1px);
    background: var(--aa-primary-dark);
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.3);
}

.aa-login-button:focus-visible,
.aa-login-links a:focus-visible,
.aa-input-wrap input:focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.22);
    outline-offset: 2px;
}

.aa-login-button .loading,
.aa-login-button .check {
    display: none;
}

.aa-login-button.active {
    pointer-events: none;
    background: var(--aa-primary-dark);
}

.aa-login-button.active .submit {
    display: none;
}

.aa-login-button.active .loading {
    display: inline-flex;
}

.aa-login-button.finished {
    pointer-events: none;
    background: #15803d;
}

.aa-login-button.finished .submit,
.aa-login-button.finished .loading {
    display: none;
}

.aa-login-button.finished .check {
    display: inline-flex;
    font-size: 22px;
    line-height: 1;
}

.aa-login-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.45);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: aa-login-spin 0.7s linear infinite;
}

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

.aa-login-links {
    margin-top: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.aa-login-links a {
    color: var(--aa-primary);
    font-size: 13px;
    font-weight: 700;
}

.aa-login-links a:hover {
    color: var(--aa-primary-dark);
    text-decoration: underline;
}

.aa-security-note {
    margin: 18px 0 0;
    color: var(--aa-muted);
    font-size: 12px;
    line-height: 1.5;
}

@media (max-width: 900px) {
    .aa-login-shell {
        grid-template-columns: 1fr;
        padding: 24px;
    }

    .aa-login-brand {
        display: none;
    }

    .aa-login-card {
        width: 100%;
        max-width: 520px;
        margin: 0 auto;
    }
}

@media (max-width: 520px) {
    .aa-login-shell {
        padding: 18px;
    }

    .aa-login-card {
        padding: 26px 22px;
        border-radius: 20px;
    }

    .aa-login-logo {
        max-width: 170px;
        max-height: 56px;
    }

    .aa-login-head h2 {
        font-size: 26px;
    }
}