/* frontend/css/auth.css */

:root {
    --primary: var(--nv-accent);
    --primary-dark: var(--nv-accent-dark);
    --success: var(--nv-success);
    --danger: var(--nv-danger);
    --dark: var(--nv-ink);
    --dark-secondary: var(--nv-ink-soft);
    --gray: var(--nv-body);
    --gray-light: var(--nv-line);
    --gray-bg: var(--nv-surface-2);
    --white: #FFFFFF;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: Inter, system-ui, sans-serif;
    min-height: 100vh;
    background: var(--gray-bg);
    color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--white);
    border: 1px solid var(--gray-light);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.auth-brand {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 8px;
}

.auth-brand .ox { color: var(--primary); }

.auth-card h1 {
    font-size: 24px;
    margin-bottom: 8px;
}

.auth-card p.lede {
    color: var(--gray);
    margin-bottom: 24px;
    line-height: 1.5;
}

.auth-card label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin: 12px 0 6px;
}

.auth-card input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--gray-light);
    border-radius: 10px;
    font-size: 15px;
}

.auth-card button {
    width: 100%;
    margin-top: 20px;
    padding: 12px;
    border: 0;
    border-radius: 10px;
    background: var(--primary);
    color: var(--white);
    font-weight: 700;
    cursor: pointer;
}

.auth-card button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.auth-msg {
    margin-top: 14px;
    font-size: 14px;
    line-height: 1.5;
}

.auth-msg.error { color: var(--danger); }
.auth-msg.success { color: var(--success); }

.auth-alt {
    margin-top: 18px;
    font-size: 14px;
    color: var(--gray);
    text-align: center;
}

.auth-alt a { color: var(--primary); font-weight: 600; text-decoration: none; }

.auth-card .hint { margin: 6px 0 0; font-size: 12px; }

.terms {
    display: flex !important;
    align-items: center;
    gap: 8px;
    font-weight: 500 !important;
    margin-top: 16px !important;
}

.terms input { width: auto; }

.success-card { margin-top: 8px; }

.success-card[hidden] { display: none !important; }

.auth-toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
    max-width: 90%;
    text-align: center;
}

.auth-toast.show { opacity: 1; }

@media (prefers-color-scheme: dark) {
    body { background: var(--dark); color: var(--white); }
    .auth-card { background: var(--dark-secondary); border-color: var(--nv-ink-line); }
    .auth-card input { background: var(--nv-ink-2); color: var(--white); border-color: var(--nv-ink-line); }
}

.auth-book {
    margin: 18px 0 0;
    padding-top: 16px;
    border-top: 1px solid var(--gray-light, var(--nv-line));
    font-size: 13px;
    line-height: 1.5;
    color: var(--gray, var(--nv-body));
    text-align: center;
}

.auth-book strong { color: var(--primary, var(--nv-accent)); font-weight: 700; }

@media (prefers-color-scheme: dark) {
    .auth-book { border-top-color: var(--nv-ink-line); }
}