:root {
    --bg: #0b0e12;
    --panel: rgba(22, 29, 39, 0.94);
    --ink: #edf3ff;
    --muted: #9fb0c6;
    --border: #273346;
    --accent: #55d3b4;
    --accent-strong: #45b89b;
    --danger: #ff6b7a;
    --shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

* {
    box-sizing: border-box;
}

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

body {
    font-family: "Space Grotesk", "Segoe UI", sans-serif;
    color: var(--ink);
    background:
        radial-gradient(880px 420px at 10% -10%, rgba(122, 147, 255, 0.2), transparent 52%),
        radial-gradient(820px 420px at 92% -8%, rgba(85, 211, 180, 0.2), transparent 44%),
        var(--bg);
}

.auth-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 18px;
}

.auth-card {
    width: min(430px, 100%);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.eyebrow {
    margin: 0;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 11px;
    font-weight: 800;
}

h1 {
    margin: 8px 0 0;
    font-size: clamp(28px, 4vw, 34px);
    letter-spacing: -0.03em;
}

.sub {
    margin: 8px 0 16px;
    color: var(--muted);
    line-height: 1.45;
}

form {
    display: grid;
    gap: 9px;
}

label {
    font-size: 12px;
    color: var(--muted);
    font-weight: 700;
}

input {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 11px;
    font: inherit;
    color: var(--ink);
    background: #0f141c;
}

input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(85, 211, 180, 0.18);
}

button {
    margin-top: 8px;
    border: 1px solid rgba(85, 211, 180, 0.45);
    border-radius: 10px;
    padding: 10px 13px;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
    color: #07130f;
    background: var(--accent);
    transition: transform .14s ease, background .14s ease;
}

button:hover {
    transform: translateY(-1px);
    background: var(--accent-strong);
}

.error {
    border: 1px solid rgba(255, 107, 122, 0.5);
    background: rgba(59, 21, 28, 0.9);
    color: #ffd6dc;
    border-radius: 10px;
    padding: 9px 11px;
    margin: 0 0 11px;
    font-size: 13px;
}