/* Shared by error.html, forgot_password.html and reset_password.html.
   Colours and font match login.css / register.css. */
:root {
    --ink: #1e1a2b;
    --muted: #6f6a7d;
    --border: #e6e2ee;
    --surface: #faf9fc;
    --violet: #7446a8;
    --violet-dark: #5a2f8d;
    --violet-light: #f1e9fa;
    --violet-border: #d9c8ee;
    --gradient: linear-gradient(135deg, #6a3d9f, #8553be);
    --ok: #1d7a4a;
    --bad: #b3261e;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: var(--surface);
    color: var(--ink);
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
    line-height: 1.5;
}

.card {
    width: 100%;
    max-width: 420px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 28px;
    box-shadow: 0 10px 30px rgba(116, 70, 168, 0.08);
}

.card h1 {
    margin: 0 0 8px;
    font-size: 1.6rem;
    font-weight: 800;
    line-height: 1.2;
}

.card p {
    margin: 0 0 20px;
    color: var(--muted);
}

.error-code {
    margin: 0 0 4px;
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 1;
    color: var(--violet);
}

form {
    display: grid;
    gap: 14px;
}

label {
    display: grid;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ink);
}

input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 12px 14px;
    background: #fff;
    color: var(--ink);
    border: 1px solid var(--border);
    border-radius: 10px;
    font: inherit;
    font-weight: 400;
}

input:focus {
    outline: none;
    border-color: var(--violet);
    box-shadow: 0 0 0 4px var(--violet-light);
}

.btn:focus-visible,
a:focus-visible {
    outline: 2px solid var(--violet);
    outline-offset: 2px;
}

.btn {
    display: inline-block;
    padding: 12px 20px;
    background: var(--gradient);
    color: #fff;
    border: 0;
    border-radius: 10px;
    font: inherit;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 6px 16px rgba(116, 70, 168, 0.28);
}

.btn:hover {
    filter: brightness(1.06);
}

.links {
    margin: 18px 0 0;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.links a {
    color: var(--violet);
    font-weight: 600;
    text-decoration: none;
}

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

.flash {
    margin: 0 0 16px;
    padding: 10px 12px;
    border-radius: 10px;
    background: var(--violet-light);
    border: 1px solid var(--violet-border);
    color: var(--violet-dark);
    font-size: 0.92rem;
}

.flash.success {
    color: var(--ok);
    border-color: #b9e0c9;
    background: #eef8f2;
}

.flash.error {
    color: var(--bad);
    border-color: #f0c4c0;
    background: #fdf1f0;
}