:root {
    --bg-1: #080d1f;
    --bg-2: #0b1533;
    --bg-3: #12204d;
    --gold: #e6b800;
    --gold-2: #f5c518;
    --gold-dim: rgba(230, 184, 0, 0.16);
    --text: #eef1f8;
    --muted: #93a0bd;
    --line: rgba(255, 255, 255, 0.08);
    --danger: #ff5f6d;
    --radius: 18px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
}

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

.login-body {
    font-family: var(--font);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(1200px 600px at 50% -10%, rgba(230, 184, 0, 0.14), transparent 60%),
        radial-gradient(900px 500px at 85% 110%, rgba(20, 60, 160, 0.35), transparent 60%),
        linear-gradient(160deg, var(--bg-1), var(--bg-2) 55%, var(--bg-3));
    padding: 24px;
}

.login-wrap {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 36px 32px 32px;
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.6);
}

.login-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 26px;
}

.login-logo {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    color: #0b1533;
    background: linear-gradient(135deg, var(--gold-2), var(--gold));
    border-radius: 13px;
    box-shadow: 0 6px 18px -4px rgba(230, 184, 0, 0.55);
}

.login-name {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.2px;
}

.login-title {
    text-align: center;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}

.login-sub {
    text-align: center;
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 22px;
}

.alert {
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 14px;
    margin-bottom: 18px;
    line-height: 1.45;
}
.alert-error { background: rgba(255, 95, 109, 0.14); color: #ffa8b0; border: 1px solid rgba(255, 95, 109, 0.3); }
.alert-warn  { background: rgba(230, 184, 0, 0.12); color: #f3d477; border: 1px solid rgba(230, 184, 0, 0.3); }

.field { margin-bottom: 16px; }

.field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
    margin-bottom: 7px;
}

.field input {
    width: 100%;
    min-height: 48px;
    font-size: 16px;
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--line);
    border-radius: 13px;
    padding: 0 16px;
    transition: border-color 0.18s, box-shadow 0.18s, background 0.18s;
}

.field input::placeholder { color: #5c6a88; }

.field input:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px var(--gold-dim);
    background: rgba(255, 255, 255, 0.07);
}

.btn {
    font-family: var(--font);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    border: none;
    border-radius: 999px;
    min-height: 48px;
    padding: 0 22px;
    transition: transform 0.12s, box-shadow 0.18s, filter 0.18s;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
    color: #0b1533;
    background: linear-gradient(135deg, var(--gold-2), var(--gold));
    box-shadow: 0 10px 24px -8px rgba(230, 184, 0, 0.6);
}
.btn-primary:hover { filter: brightness(1.06); box-shadow: 0 14px 30px -8px rgba(230, 184, 0, 0.7); }

.btn-block { width: 100%; }

.code-input {
    text-align: center;
    letter-spacing: 10px;
    font-size: 26px;
    font-weight: 700;
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--line);
    border-radius: 13px;
    width: 100%;
    min-height: 58px;
    margin-bottom: 18px;
}
.code-input:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px var(--gold-dim);
}

.login-links {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 10px;
    font-size: 13px;
    color: var(--muted);
}
.login-links a { color: var(--gold-2); text-decoration: none; }
.login-links a:hover { text-decoration: underline; }

.login-foot {
    text-align: center;
    color: var(--muted);
    font-size: 12px;
    margin-top: 20px;
    opacity: 0.7;
}