:root {
    --bg-1: #f4f7fb;
    --bg-2: #eaf0ff;
    --text: #14213d;
    --text-soft: #5b6784;
    --brand: #345cff;
    --brand-strong: #1f45db;
    --border: rgba(20, 33, 61, 0.12);
    --danger: #d93025;
    --success: #188038;
    --neutral: #5f6368;
    --shadow: 0 28px 64px rgba(18, 32, 71, 0.16);
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
}

body {
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background:
            radial-gradient(circle at top left, rgba(52, 92, 255, 0.14), transparent 24%),
            radial-gradient(circle at bottom right, rgba(111, 78, 255, 0.12), transparent 28%),
            linear-gradient(180deg, var(--bg-2), var(--bg-1));
}

button,
input {
    font: inherit;
}

.eyebrow {
    margin: 0 0 6px;
    color: var(--brand);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.login-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-card {
    width: min(100%, 460px);
    padding: 28px;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.login-card__intro h1 {
    margin: 0;
    font-size: 2rem;
}

.login-card__intro p:last-child {
    margin: 12px 0 0;
    color: var(--text-soft);
    line-height: 1.6;
}

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

.field {
    display: grid;
    gap: 8px;
}

.field span {
    color: var(--text-soft);
    font-size: 0.92rem;
}

.field input {
    width: 100%;
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text);
    outline: none;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.field input:focus {
    border-color: rgba(52, 92, 255, 0.35);
    box-shadow: 0 0 0 4px rgba(52, 92, 255, 0.08);
}

.primary-button {
    margin-top: 4px;
    border: none;
    padding: 15px 18px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--brand), var(--brand-strong));
    color: #fff;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 14px 22px rgba(52, 92, 255, 0.22);
}

.login-alert {
    margin-top: 18px;
    padding: 12px 14px;
    border-radius: 16px;
    line-height: 1.45;
}

.login-alert--error {
    background: rgba(217, 48, 37, 0.08);
    color: var(--danger);
}

.login-alert--success {
    background: rgba(24, 128, 56, 0.08);
    color: var(--success);
}

.login-alert--neutral {
    background: rgba(95, 99, 104, 0.08);
    color: var(--neutral);
}

@media (max-width: 520px) {
    .login-shell {
        padding: 16px;
    }

    .login-card {
        padding: 22px 18px;
        border-radius: 22px;
    }

    .login-card__intro h1 {
        font-size: 1.7rem;
    }
}