:root {
    color-scheme: dark;
    --bg-deep: #0b0f1e;
    --bg-mid: #101733;
    --glow: #5eead4;
    --accent: #f59e0b;
    --text: #e6e9f2;
    --muted: #9aa3b2;
    --card: rgba(18, 24, 45, 0.86);
    --border: rgba(255, 255, 255, 0.08);
    --pico-font-family: "Lato", "Helvetica Neue", Arial, sans-serif;
    --pico-background-color: transparent;
    --pico-card-background-color: var(--card);
    --pico-card-border-color: var(--border);
    --pico-border-color: var(--border);
    --pico-color: var(--text);
    --pico-muted-color: var(--muted);
    --pico-primary: var(--glow);
    --pico-primary-background: linear-gradient(
        120deg,
        var(--glow),
        var(--accent)
    );
    --pico-primary-hover: #8ef1dd;
    --pico-primary-focus: rgba(94, 234, 212, 0.2);
    --pico-form-element-color: var(--text);
    --pico-form-element-background-color: rgba(11, 16, 34, 0.8);
    --pico-form-element-border-color: rgba(255, 255, 255, 0.08);
    --pico-form-element-active-border-color: rgba(94, 234, 212, 0.6);
    --pico-form-element-focus-color: rgba(94, 234, 212, 0.2);
    --pico-form-element-placeholder-color: rgba(154, 163, 178, 0.7);
}

body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 48px 20px;
    background:
        radial-gradient(
            800px 600px at 10% -10%,
            rgba(94, 234, 212, 0.25),
            transparent 60%
        ),
        radial-gradient(
            800px 600px at 110% 10%,
            rgba(245, 158, 11, 0.22),
            transparent 55%
        ),
        linear-gradient(160deg, var(--bg-deep), var(--bg-mid));
    color: var(--text);
    font-family: "Lato", "Helvetica Neue", Arial, sans-serif;
}

main.container {
    width: min(92vw, 480px);
}

article {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(18px);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text);
}

hgroup p,
small {
    color: var(--muted);
}

label {
    color: var(--muted);
    font-weight: 600;
}

input,
select,
textarea {
    background: rgba(11, 16, 34, 0.8);
    border-color: rgba(255, 255, 255, 0.08);
    color: var(--text);
}

input::placeholder,
textarea::placeholder {
    color: rgba(154, 163, 178, 0.7);
}

input:focus,
select:focus,
textarea:focus {
    border-color: rgba(94, 234, 212, 0.6);
    box-shadow: 0 0 0 3px rgba(94, 234, 212, 0.15);
}

button[type="submit"] {
    border: none;
    background: linear-gradient(120deg, var(--glow), var(--accent));
    color: #10111a;
    font-weight: 700;
    letter-spacing: 0.04em;
}

button[type="submit"]:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 24px rgba(94, 234, 212, 0.2);
}

a {
    color: var(--glow);
}

a:hover {
    color: var(--text);
}

footer a,
small a {
    background: transparent;
    border: 0;
    box-shadow: none;
    padding: 0;
}

article > footer {
    background: transparent;
    border-top: 0;
    padding-top: 0;
}

.auth-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #fecaca;
    border-radius: 12px;
    padding: 12px 14px;
    margin: 12px 0 18px;
    font-weight: 600;
}

.auth-error p {
    margin: 0;
    color: #fecaca;
}

.flex-column {
    display: flex;
    flex-direction: column;
}