:root {
    color-scheme: dark;
    --bg: #1e1e1e;
    --panel: #252525;
    --panel-strong: #2a2a2a;
    --border: #333333;
    --text: #dcddde;
    --muted: #909090;
    --accent: #ff7400;
    --accent-hover: #d96200;
    --danger: #ff6b6b;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    padding: 24px;
}
.login-shell {
    width: min(100%, 420px);
    display: grid;
}
.login-card {
    width: 100%;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 0.25vw;
    padding: 28px;
    box-shadow: 0 20px 50px rgba(0,0,0,.28);
    backdrop-filter: blur(8px);
}
.login-card-head {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
}
.login-brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}
.login-brand img {
    width: 52px;
    height: 52px;
    display: block;
    border-radius: 14px;
    flex: 0 0 auto;
}
.login-brand-copy {
    display: grid;
    gap: 2px;
    min-width: 0;
}
.login-brand-copy strong {
    font-size: 22px;
    line-height: 1.1;
    letter-spacing: 0.01em;
}
.login-brand-copy span {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.2;
}
.login-form-separator {
    height: 1px;
    margin: 0 0 22px;
    background: rgba(255, 255, 255, 0.08);
}
label { display: block; margin-bottom: 14px; font-size: 14px; }
input {
    width: 100%;
    margin-top: 8px;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--panel-strong);
    color: var(--text);
}
.remember-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 4px 0 18px;
    color: var(--muted);
    font-size: 14px;
}
.remember-row input {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--accent);
}
.remember-row label {
    margin: 0;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}
button {
    width: 100%;
    padding: 12px 16px;
    border: none;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}
button:hover { background: var(--accent-hover); }
.error {
    margin-bottom: 16px;
    color: var(--danger);
    font-size: 14px;
}
@media (max-width: 640px) {
    .login-card-head {
        flex-direction: column;
        align-items: flex-start;
    }
}