/* Login — centered, modern layout */

:root {
    --login-primary: #2563eb;
    --login-primary-hover: #1d4ed8;
    --login-bg: #f0f4fa;
    --login-surface: #ffffff;
    --login-text: #0f172a;
    --login-muted: #64748b;
    --login-border: #e2e8f0;
    --login-radius: 1rem;
    --login-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 12px 32px -8px rgba(15, 23, 42, 0.12);
    --login-font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

body.login-page {
    font-family: var(--login-font);
    background: linear-gradient(160deg, #eef2ff 0%, var(--login-bg) 45%, #f8fafc 100%);
    margin: 0;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

body.login-page main.login-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    min-height: 100vh;
    min-height: 100svh;
    min-height: -webkit-fill-available;
    margin: 0;
    padding: max(1rem, env(safe-area-inset-top, 0px))
        max(1rem, env(safe-area-inset-right, 0px))
        max(1rem, env(safe-area-inset-bottom, 0px))
        max(1rem, env(safe-area-inset-left, 0px));
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
}

.login-shell {
    width: 100%;
    max-width: 22rem;
    margin-block: auto;
    flex-shrink: 0;
}

.login-card {
    background: var(--login-surface);
    border: 1px solid var(--login-border);
    border-radius: var(--login-radius);
    box-shadow: var(--login-shadow);
    padding: 2rem 1.75rem 1.75rem;
}

.login-brand {
    text-align: center;
    margin-bottom: 1.75rem;
}

.login-brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    font-size: 1.5rem;
    background: #eff6ff;
    border-radius: 0.75rem;
    margin-bottom: 0.875rem;
}

.login-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--login-text);
    letter-spacing: -0.02em;
    margin: 0 0 0.25rem;
    line-height: 1.25;
}

.login-subtitle {
    font-size: 0.875rem;
    color: var(--login-muted);
    margin: 0;
}

.login-card .form-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--login-text);
    margin-bottom: 0.375rem;
}

.login-card .form-control {
    border-color: var(--login-border);
    border-radius: 0.5rem;
    padding: 0.625rem 0.75rem;
    font-size: 0.9375rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.login-card .form-control:focus {
    border-color: var(--login-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.login-card .btn-primary {
    background: var(--login-primary);
    border-color: var(--login-primary);
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 0.625rem 1rem;
    margin-top: 0.25rem;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.login-card .btn-primary:hover,
.login-card .btn-primary:focus {
    background: var(--login-primary-hover);
    border-color: var(--login-primary-hover);
}

.login-card .alert {
    font-size: 0.875rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}